component
STC89C52RC-40I-LQFP44
Public Made by Adomby adom
STC Micro Microcontrollers (MCU/MPU/SOC), LQFP-44(10x10). Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
← Commit history
pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left)
5 files changed
+1406−3
package.json+2−1@@ -24,6 +24,7 @@ "docs/hero.png", "docs/stc89c52rc-40i-lqfp44-datasheet.pdf", "viewers/symbol.html",- "viewers/footprint.html"+ "viewers/footprint.html",+ "pads.json" ] }
pads.jsonadded+1391@@ -0,0 +1,1391 @@+{+ "schema": "adom.pads/1",+ "slug": "stc89c52rc-40i-lqfp44",+ "footprint": "LQFP-44_10x10mm_P0.8mm",+ "generated_from": {+ "footprint": "LQFP-44_10x10mm_P0.8mm@sha256:a24003d5101dbf25",+ "pins": "page.json:component.pins",+ "overrides": null+ },+ "pin1": {+ "pad": "1",+ "at": [+ -5.6625,+ -4.0+ ],+ "corner": "top-left",+ "source": "silk-marker",+ "derived_from": "LQFP-44_10x10mm_P0.8mm@sha256:a24003d5101dbf25"+ },+ "pad_count": 44,+ "symbol_pins": [+ "1",+ "10",+ "11",+ "12",+ "13",+ "14",+ "15",+ "16",+ "17",+ "18",+ "19",+ "2",+ "20",+ "21",+ "22",+ "23",+ "24",+ "25",+ "26",+ "27",+ "28",+ "29",+ "3",+ "30",+ "31",+ "32",+ "33",+ "34",+ "35",+ "36",+ "37",+ "38",+ "39",+ "4",+ "40",+ "41",+ "42",+ "43",+ "44",+ "5",+ "6",+ "7",+ "8",+ "9"+ ],+ "paste_apertures": 0,+ "issues": [],+ "pads": [+ {+ "pad": "1",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -5.6625,+ -4.0+ ],+ "rot": 0.0,+ "size": [+ 1.475,+ 0.55+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "1",+ "name": "P1.5",+ "type": "bidirectional",+ "description": "Standard quasi-bidirectional I/O port PORT1[5]. Internal weak pull-up; drives/reads CMOS level.",+ "is_pin1": true,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "2",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -5.6625,+ -3.2+ ],+ "rot": 0.0,+ "size": [+ 1.475,+ 0.55+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "2",+ "name": "P1.6",+ "type": "bidirectional",+ "description": "Standard quasi-bidirectional I/O port PORT1[6]. Optionally connects to external crystal for the on-chip USB-serial helper circuit in some board layouts.",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "3",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -5.6625,+ -2.4+ ],+ "rot": 0.0,+ "size": [+ 1.475,+ 0.55+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "3",+ "name": "P1.7",+ "type": "bidirectional",+ "description": "Standard quasi-bidirectional I/O port PORT1[7].",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "4",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -5.6625,+ -1.6+ ],+ "rot": 0.0,+ "size": [+ 1.475,+ 0.55+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "4",+ "name": "RST",+ "type": "input",+ "description": "Active-high reset input. HD-version parts have an internal 45k-100k pull-down to GND; hold high for at least two machine cycles to reset the MCU.",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "5",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -5.6625,+ -0.8+ ],+ "rot": 0.0,+ "size": [+ 1.475,+ 0.55+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "5",+ "name": "P3.0/RxD",+ "type": "bidirectional",+ "description": "P3.0 general-purpose I/O; alternate function RxD = UART1 serial data receive input.",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "6",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -5.6625,+ 0.0+ ],+ "rot": 0.0,+ "size": [+ 1.475,+ 0.55+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "6",+ "name": "P4.3/INT2",+ "type": "bidirectional",+ "description": "P4.3 general-purpose I/O; alternate function INT2 = external interrupt 2 (falling-edge or low-level trigger).",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "7",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -5.6625,+ 0.8+ ],+ "rot": 0.0,+ "size": [+ 1.475,+ 0.55+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "7",+ "name": "P3.1/TxD",+ "type": "bidirectional",+ "description": "P3.1 general-purpose I/O; alternate function TxD = UART1 serial data transmit output.",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "8",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -5.6625,+ 1.6+ ],+ "rot": 0.0,+ "size": [+ 1.475,+ 0.55+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "8",+ "name": "P3.2/INT0",+ "type": "bidirectional",+ "description": "P3.2 general-purpose I/O; alternate function INT0 = external interrupt 0 (falling-edge or low-level trigger).",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "9",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -5.6625,+ 2.4+ ],+ "rot": 0.0,+ "size": [+ 1.475,+ 0.55+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "9",+ "name": "P3.3/INT1",+ "type": "bidirectional",+ "description": "P3.3 general-purpose I/O; alternate function INT1 = external interrupt 1 (falling-edge or low-level trigger).",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "10",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -5.6625,+ 3.2+ ],+ "rot": 0.0,+ "size": [+ 1.475,+ 0.55+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "10",+ "name": "P3.4/T0",+ "type": "bidirectional",+ "description": "P3.4 general-purpose I/O; alternate function T0 = Timer/Counter 0 external clock/count input.",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "11",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -5.6625,+ 4.0+ ],+ "rot": 0.0,+ "size": [+ 1.475,+ 0.55+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "11",+ "name": "P3.5/T1",+ "type": "bidirectional",+ "description": "P3.5 general-purpose I/O; alternate function T1 = Timer/Counter 1 external clock/count input.",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "12",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -4.0,+ 5.6625+ ],+ "rot": 0.0,+ "size": [+ 0.55,+ 1.475+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "12",+ "name": "P3.6/WR",+ "type": "bidirectional",+ "description": "P3.6 general-purpose I/O; alternate function WR = active-low external data memory write strobe (for MOVX instructions).",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "13",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -3.2,+ 5.6625+ ],+ "rot": 0.0,+ "size": [+ 0.55,+ 1.475+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "13",+ "name": "P3.7/RD",+ "type": "bidirectional",+ "description": "P3.7 general-purpose I/O; alternate function RD = active-low external data memory read strobe (for MOVX instructions).",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "14",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -2.4,+ 5.6625+ ],+ "rot": 0.0,+ "size": [+ 0.55,+ 1.475+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "14",+ "name": "XTAL2",+ "type": "output",+ "description": "Output of the internal inverting oscillator amplifier; connect to the second lead of the external crystal. If an external clock source is used on XTAL1, XTAL2 outputs the buffered clock and may be left floating.",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "15",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -1.6,+ 5.6625+ ],+ "rot": 0.0,+ "size": [+ 0.55,+ 1.475+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "15",+ "name": "XTAL1",+ "type": "input",+ "description": "Input to the internal inverting oscillator amplifier; connect to one lead of the external crystal or directly to an external clock source.",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "16",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -0.8,+ 5.6625+ ],+ "rot": 0.0,+ "size": [+ 0.55,+ 1.475+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "16",+ "name": "GND",+ "type": "power_in",+ "description": "Digital ground (0 V reference).",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "17",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 0.0,+ 5.6625+ ],+ "rot": 0.0,+ "size": [+ 0.55,+ 1.475+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "17",+ "name": "P4.0",+ "type": "bidirectional",+ "description": "Standard quasi-bidirectional I/O port PORT4[0]. Present only on LQFP-44/PLCC-44 packages (not on PDIP-40).",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "18",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 0.8,+ 5.6625+ ],+ "rot": 0.0,+ "size": [+ 0.55,+ 1.475+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "18",+ "name": "P2.0",+ "type": "bidirectional",+ "description": "P2 quasi-bidirectional I/O with internal pull-ups. Doubles as high address byte A8 when accessing external memory via MOVX @DPTR / MOVC.",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "19",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 1.6,+ 5.6625+ ],+ "rot": 0.0,+ "size": [+ 0.55,+ 1.475+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "19",+ "name": "P2.1",+ "type": "bidirectional",+ "description": "P2 quasi-bidirectional I/O; doubles as external address bit A9.",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "20",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 2.4,+ 5.6625+ ],+ "rot": 0.0,+ "size": [+ 0.55,+ 1.475+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "20",+ "name": "P2.2",+ "type": "bidirectional",+ "description": "P2 quasi-bidirectional I/O; doubles as external address bit A10.",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "21",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 3.2,+ 5.6625+ ],+ "rot": 0.0,+ "size": [+ 0.55,+ 1.475+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "21",+ "name": "P2.3",+ "type": "bidirectional",+ "description": "P2 quasi-bidirectional I/O; doubles as external address bit A11.",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "22",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 4.0,+ 5.6625+ ],+ "rot": 0.0,+ "size": [+ 0.55,+ 1.475+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "22",+ "name": "P2.4",+ "type": "bidirectional",+ "description": "P2 quasi-bidirectional I/O; doubles as external address bit A12.",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "23",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 5.6625,+ 4.0+ ],+ "rot": 0.0,+ "size": [+ 1.475,+ 0.55+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "23",+ "name": "P2.5",+ "type": "bidirectional",+ "description": "P2 quasi-bidirectional I/O; doubles as external address bit A13.",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "24",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 5.6625,+ 3.2+ ],+ "rot": 0.0,+ "size": [+ 1.475,+ 0.55+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "24",+ "name": "P2.6",+ "type": "bidirectional",+ "description": "P2 quasi-bidirectional I/O; doubles as external address bit A14.",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "25",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 5.6625,+ 2.4+ ],+ "rot": 0.0,+ "size": [+ 1.475,+ 0.55+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "25",+ "name": "P2.7",+ "type": "bidirectional",+ "description": "P2 quasi-bidirectional I/O; doubles as external address bit A15.",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "26",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 5.6625,+ 1.6+ ],+ "rot": 0.0,+ "size": [+ 1.475,+ 0.55+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "26",+ "name": "P4.4/PSEN",+ "type": "bidirectional",+ "description": "P4.4 general-purpose I/O; alternate function PSEN = Program Store Enable, active-low strobe for external program memory reads.",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "27",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 5.6625,+ 0.8+ ],+ "rot": 0.0,+ "size": [+ 1.475,+ 0.55+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "27",+ "name": "P4.5/ALE",+ "type": "bidirectional",+ "description": "P4.5 general-purpose I/O; alternate function ALE = Address Latch Enable output for demultiplexing the low address byte on P0 during external memory access. Also acts as PROG programming pulse input during Flash ISP.",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "28",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 5.6625,+ 0.0+ ],+ "rot": 0.0,+ "size": [+ 1.475,+ 0.55+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "28",+ "name": "P4.1",+ "type": "bidirectional",+ "description": "Standard quasi-bidirectional I/O port PORT4[1]. Present only on LQFP-44/PLCC-44 packages.",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "29",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 5.6625,+ -0.8+ ],+ "rot": 0.0,+ "size": [+ 1.475,+ 0.55+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "29",+ "name": "P4.6/EA",+ "type": "bidirectional",+ "description": "P4.6 general-purpose I/O; alternate function EA = External Access Enable. Internally pulled up to VCC: floating or tied high starts execution from internal Flash; tied to GND starts execution from external program memory.",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "30",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 5.6625,+ -1.6+ ],+ "rot": 0.0,+ "size": [+ 1.475,+ 0.55+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "30",+ "name": "P0.7/AD7",+ "type": "bidirectional",+ "description": "P0.7 8-bit quasi-bidirectional I/O (open-drain after reset; requires 4.7k-10k external pull-up when used as GPIO). Doubles as multiplexed low address/data line AD7 during external memory access (no external pull-up needed in bus mode).",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "31",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 5.6625,+ -2.4+ ],+ "rot": 0.0,+ "size": [+ 1.475,+ 0.55+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "31",+ "name": "P0.6/AD6",+ "type": "bidirectional",+ "description": "P0.6 open-drain quasi-bidirectional I/O; doubles as multiplexed address/data line AD6.",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "32",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 5.6625,+ -3.2+ ],+ "rot": 0.0,+ "size": [+ 1.475,+ 0.55+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "32",+ "name": "P0.5/AD5",+ "type": "bidirectional",+ "description": "P0.5 open-drain quasi-bidirectional I/O; doubles as multiplexed address/data line AD5.",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "33",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 5.6625,+ -4.0+ ],+ "rot": 0.0,+ "size": [+ 1.475,+ 0.55+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "33",+ "name": "P0.4/AD4",+ "type": "bidirectional",+ "description": "P0.4 open-drain quasi-bidirectional I/O; doubles as multiplexed address/data line AD4.",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "34",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 4.0,+ -5.6625+ ],+ "rot": 0.0,+ "size": [+ 0.55,+ 1.475+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "34",+ "name": "P0.3/AD3",+ "type": "bidirectional",+ "description": "P0.3 open-drain quasi-bidirectional I/O; doubles as multiplexed address/data line AD3.",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "35",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 3.2,+ -5.6625+ ],+ "rot": 0.0,+ "size": [+ 0.55,+ 1.475+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "35",+ "name": "P0.2/AD2",+ "type": "bidirectional",+ "description": "P0.2 open-drain quasi-bidirectional I/O; doubles as multiplexed address/data line AD2.",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "36",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 2.4,+ -5.6625+ ],+ "rot": 0.0,+ "size": [+ 0.55,+ 1.475+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "36",+ "name": "P0.1/AD1",+ "type": "bidirectional",+ "description": "P0.1 open-drain quasi-bidirectional I/O; doubles as multiplexed address/data line AD1.",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "37",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 1.6,+ -5.6625+ ],+ "rot": 0.0,+ "size": [+ 0.55,+ 1.475+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "37",+ "name": "P0.0/AD0",+ "type": "bidirectional",+ "description": "P0.0 open-drain quasi-bidirectional I/O; doubles as multiplexed address/data line AD0.",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "38",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 0.8,+ -5.6625+ ],+ "rot": 0.0,+ "size": [+ 0.55,+ 1.475+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "38",+ "name": "VCC",+ "type": "power_in",+ "description": "Positive supply. 5V for STC89C52RC (operating range typically 3.8-5.5 V); 3.3V for STC89LE52RC (2.0-3.6 V). Decouple with 100 nF + 10 uF close to the pin.",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "39",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 0.0,+ -5.6625+ ],+ "rot": 0.0,+ "size": [+ 0.55,+ 1.475+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "39",+ "name": "P4.2/INT3",+ "type": "bidirectional",+ "description": "P4.2 general-purpose I/O; alternate function INT3 = external interrupt 3 (falling-edge or low-level trigger).",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "40",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -0.8,+ -5.6625+ ],+ "rot": 0.0,+ "size": [+ 0.55,+ 1.475+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "40",+ "name": "P1.0/T2",+ "type": "bidirectional",+ "description": "P1.0 general-purpose I/O; alternate function T2 = Timer/Counter 2 external clock/count input.",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "41",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -1.6,+ -5.6625+ ],+ "rot": 0.0,+ "size": [+ 0.55,+ 1.475+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "41",+ "name": "P1.1/T2EX",+ "type": "bidirectional",+ "description": "P1.1 general-purpose I/O; alternate function T2EX = Timer 2 capture/reload trigger control input.",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "42",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -2.4,+ -5.6625+ ],+ "rot": 0.0,+ "size": [+ 0.55,+ 1.475+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "42",+ "name": "P1.2",+ "type": "bidirectional",+ "description": "Standard quasi-bidirectional I/O port PORT1[2].",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "43",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -3.2,+ -5.6625+ ],+ "rot": 0.0,+ "size": [+ 0.55,+ 1.475+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "43",+ "name": "P1.3",+ "type": "bidirectional",+ "description": "Standard quasi-bidirectional I/O port PORT1[3].",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "44",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -4.0,+ -5.6625+ ],+ "rot": 0.0,+ "size": [+ 0.55,+ 1.475+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "44",+ "name": "P1.4",+ "type": "bidirectional",+ "description": "Standard quasi-bidirectional I/O port PORT1[4].",+ "is_pin1": false,+ "source": {+ "geometry": "LQFP-44_10x10mm_P0.8mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ }+ ]+}
page.json+11@@ -312,6 +312,17 @@ "viewers": { "symbol": "viewers/symbol.html", "footprint": "viewers/footprint.html"+ },+ "pin1": {+ "pad": "1",+ "at": [+ -5.6625,+ -4.0+ ],+ "corner": "top-left",+ "source": "silk-marker",+ "derived_from": "LQFP-44_10x10mm_P0.8mm@sha256:a24003d5101dbf25",+ "mark": "drawn" } }, "metadata": {
stc89c52rc-40i-lqfp44.lbr+1−1@@ -108,7 +108,7 @@ <wire x1="5.1100" y1="-5.1100" x2="4.5350" y2="-5.1100" width="0.1200" layer="21"/> <text x="0" y="7.000" size="1.27" layer="25" align="bottom-center">>NAME</text> <text x="0" y="-7.000" size="1.27" layer="27" align="top-center">>VALUE</text>-</package>+<!--adom-pin1--><polygon width="0.0500" layer="21"><vertex x="-5.7500" y="4.5400"/><vertex x="-6.0900" y="5.0100"/><vertex x="-5.4100" y="5.0100"/></polygon></package> </packages> <symbols> <symbol name="STC89C52RC-40I-LQFP44">
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