component
STM811SW16F
Public Made by Adomby adom
STMicroelectronics Supervisor and Reset ICs, SOT-143. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
main
Ray
pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left)
2628188
1mo ago
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151
{
"schema": "adom.pads/1",
"slug": "stm811sw16f",
"footprint": "SOT-143",
"generated_from": {
"footprint": "SOT-143@sha256:80e8edd31fe81e67",
"pins": "page.json:component.pins",
"overrides": null
},
"pin1": {
"pad": "1",
"at": [
-1.0,
-0.75
],
"corner": "top-left",
"source": "silk-marker",
"derived_from": "SOT-143@sha256:80e8edd31fe81e67"
},
"pad_count": 4,
"symbol_pins": [
"1",
"2",
"3",
"4"
],
"paste_apertures": 0,
"issues": [],
"pads": [
{
"pad": "1",
"kind": "smd",
"shape": "roundrect",
"at": [
-1.0,
-0.75
],
"rot": 0.0,
"size": [
0.7,
1.0
],
"layers": [
"F.Cu",
"F.Mask",
"F.Paste"
],
"thermal": false,
"pin": "1",
"name": "VSS",
"type": "power_in",
"description": "Ground reference for the supervisor. Tie to the system ground plane.",
"is_pin1": true,
"source": {
"geometry": "SOT-143.kicad_mod",
"meaning": "page.json:component.pins",
"correspondence": "kicad: symbol pin number == pad name"
}
},
{
"pad": "2",
"kind": "smd",
"shape": "roundrect",
"at": [
-1.0,
0.95
],
"rot": 0.0,
"size": [
0.7,
0.6
],
"layers": [
"F.Cu",
"F.Mask",
"F.Paste"
],
"thermal": false,
"pin": "2",
"name": "RST",
"type": "output",
"description": "Active-low reset output (push-pull). Asserted (driven low) whenever VCC is below the reset threshold or MR is held low; remains asserted for at least trec (~140 ms) after the fault clears. Guaranteed valid down to VCC = 1 V; both sources and sinks current.",
"is_pin1": false,
"source": {
"geometry": "SOT-143.kicad_mod",
"meaning": "page.json:component.pins",
"correspondence": "kicad: symbol pin number == pad name"
}
},
{
"pad": "3",
"kind": "smd",
"shape": "roundrect",
"at": [
1.0,
0.95
],
"rot": 0.0,
"size": [
0.7,
0.6
],
"layers": [
"F.Cu",
"F.Mask",
"F.Paste"
],
"thermal": false,
"pin": "3",
"name": "MR",
"type": "input",
"description": "Manual reset input, active low. A logic low asserts RST and keeps it asserted for trec after MR returns high. Internally pulled up to VCC via a 20 kΩ resistor, so it may be left open if unused; a normally-open push-button to GND provides a manual reset. Optional 0.1 µF cap from MR to GND for noise immunity.",
"is_pin1": false,
"source": {
"geometry": "SOT-143.kicad_mod",
"meaning": "page.json:component.pins",
"correspondence": "kicad: symbol pin number == pad name"
}
},
{
"pad": "4",
"kind": "smd",
"shape": "roundrect",
"at": [
1.0,
-0.95
],
"rot": 0.0,
"size": [
0.7,
0.6
],
"layers": [
"F.Cu",
"F.Mask",
"F.Paste"
],
"thermal": false,
"pin": "4",
"name": "VCC",
"type": "power_in",
"description": "Monitored supply voltage input (typ. 3.0/3.3/5 V depending on threshold variant). A 0.1 µF bypass capacitor to VSS mounted close to this pin is recommended for transient immunity.",
"is_pin1": false,
"source": {
"geometry": "SOT-143.kicad_mod",
"meaning": "page.json:component.pins",
"correspondence": "kicad: symbol pin number == pad name"
}
}
]
}