component
CM2248-QFPTR
Public Made by Adomby adom
CIMO Analog To Digital Converters (ADCs), LQFP-64(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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{
"schema_version": 1,
"type": "component",
"slug": "cm2248-qfptr",
"title": "CM2248-QFPTR",
"brief": "CIMO Analog To Digital Converters (ADCs), LQFP-64(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
"component",
"adc-dac-data conversion",
"cm2248-qfptr",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "CM2248-QFPTR",
"manufacturer": "CIMO",
"package": "LQFP-64(10x10)",
"pin_count": 64,
"category": "ADC/DAC/Data Conversion",
"subcategory": "Analog To Digital Converters (ADCs)",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/f8e62edad79b3ac6b5c725f82616c81a.pdf",
"parts": {
"symbol": "cm2248-qfptr.kicad_sym",
"footprint": "cm2248-qfptr.kicad_mod",
"model_3d": "cm2248-qfptr-hero.glb",
"model_3d_plain": "cm2248-qfptr.glb",
"model_3d_step": "cm2248-qfptr-etched.step",
"model_3d_step_plain": "cm2248-qfptr.step",
"lbr": "cm2248-qfptr.lbr"
},
"distributor_links": {
"lcsc": "C20606818"
},
"distributor_check": {
"checked_at": "2026-11-13T11:58:47Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "quota"
}
},
"pins": [
{
"number": "1",
"name": "AVCC",
"type": "power_in",
"description": "Analog supply pin; decouple to AGND with 100nF in parallel with 10µF, and the AVCC supply range is 4.75 V to 5.25 V."
},
{
"number": "2",
"name": "AGND",
"type": "power_in",
"description": "Analog ground reference for all analog circuitry; all six AGND pins must be connected to the system AGND plane."
},
{
"number": "3",
"name": "OS0",
"type": "input",
"description": "Oversampling select LSB; together with OS1 and OS2 it sets the digital-filter oversampling ratio from no oversampling up to 64x per Table 2."
},
{
"number": "4",
"name": "OS1",
"type": "input",
"description": "Oversampling select middle bit; together with OS0 and OS2 it sets the digital-filter oversampling ratio per Table 2."
},
{
"number": "5",
"name": "OS2",
"type": "input",
"description": "Oversampling select MSB; OS[2:0] = 111 is stated as invalid in Table 2."
},
{
"number": "6",
"name": "PAR/SER/BYTE_SEL",
"type": "input",
"description": "With DB15/BYTE_SEL selects the interface: low selects parallel, high with DB15/BYTE_SEL low selects serial, and high with DB15/BYTE_SEL high selects parallel byte mode."
},
{
"number": "7",
"name": "STBY",
"type": "input",
"description": "Low-power mode input; with RANGE selects standby (RANGE high) or shutdown (RANGE low) mode."
},
{
"number": "8",
"name": "RANGE",
"type": "input",
"description": "Selects the analog input range for all channels: high gives ±10 V and low gives ±5 V; a change takes effect immediately and about 80 µs settling is required before the next sample."
},
{
"number": "9",
"name": "CONVSTA",
"type": "input",
"description": "Convert-start input for V1 to V4 on its rising edge; tie to CONVSTB for simultaneous sampling of all eight channels."
},
{
"number": "10",
"name": "CONVSTB",
"type": "input",
"description": "Convert-start input for V5 to V8 on its rising edge; tie to CONVSTA for simultaneous sampling of all eight channels."
},
{
"number": "11",
"name": "RESET",
"type": "input",
"description": "Active-high reset that aborts any conversion in progress and clears the output register to all zeros; after power-up a high pulse longer than 50 ns is required."
},
{
"number": "12",
"name": "RD/SCLK",
"type": "input",
"description": "Parallel read strobe RD in parallel interface mode, or serial clock SCLK in serial interface mode."
},
{
"number": "13",
"name": "CS",
"type": "input",
"description": "Active-low chip select that enables data frame transfer."
},
{
"number": "14",
"name": "BUSY",
"type": "output",
"description": "Goes high once CONVSTA and CONVSTB have both gone high and stays high until all channel conversions finish; its falling edge latches the conversion data into the output registers."
},
{
"number": "15",
"name": "FRSTDATA",
"type": "output",
"description": "Indicates that the first channel V1 result is ready to be read back; it is tri-stated while CS is high."
},
{
"number": "16",
"name": "DB0",
"type": "output",
"description": "Parallel data bit 0 (LSB) of the conversion result; must be connected to AGND when PAR/SER/BYTE_SEL is high."
},
{
"number": "17",
"name": "DB1",
"type": "output",
"description": "Parallel data bit 1 of the conversion result; must be connected to AGND when PAR/SER/BYTE_SEL is high."
},
{
"number": "18",
"name": "DB2",
"type": "output",
"description": "Parallel data bit 2 of the conversion result; must be connected to AGND when PAR/SER/BYTE_SEL is high."
},
{
"number": "19",
"name": "DB3",
"type": "output",
"description": "Parallel data bit 3 of the conversion result; must be connected to AGND when PAR/SER/BYTE_SEL is high."
},
{
"number": "20",
"name": "DB4",
"type": "output",
"description": "Parallel data bit 4 of the conversion result; must be connected to AGND when PAR/SER/BYTE_SEL is high."
},
{
"number": "21",
"name": "DB5",
"type": "output",
"description": "Parallel data bit 5 of the conversion result; must be connected to AGND when PAR/SER/BYTE_SEL is high."
},
{
"number": "22",
"name": "DB6",
"type": "output",
"description": "Parallel data bit 6 of the conversion result; must be connected to AGND when PAR/SER/BYTE_SEL is high."
},
{
"number": "23",
"name": "VDRIVE",
"type": "power_in",
"description": "Logic interface supply, 1.7 V to 5.25 V; it should match the supply of the controller (DSP or FPGA) it interfaces with."
},
{
"number": "24",
"name": "DB7/DOUTA",
"type": "output",
"description": "Parallel data bit 7 (MSB in parallel mode) or serial data output DOUTA."
},
{
"number": "25",
"name": "DB8/DOUTB",
"type": "output",
"description": "Parallel data bit 8 or serial data output DOUTB."
},
{
"number": "26",
"name": "AGND",
"type": "power_in",
"description": "Analog ground; connect to the system AGND plane."
},
{
"number": "27",
"name": "DB9",
"type": "output",
"description": "Parallel data bit 9 of the conversion result; must be connected to AGND when PAR/SER/BYTE_SEL is high."
},
{
"number": "28",
"name": "DB10",
"type": "output",
"description": "Parallel data bit 10 of the conversion result; must be connected to AGND when PAR/SER/BYTE_SEL is high."
},
{
"number": "29",
"name": "DB11",
"type": "output",
"description": "Parallel data bit 11 of the conversion result; must be connected to AGND when PAR/SER/BYTE_SEL is high."
},
{
"number": "30",
"name": "DB12",
"type": "output",
"description": "Parallel data bit 12 of the conversion result; must be connected to AGND when PAR/SER/BYTE_SEL is high."
},
{
"number": "31",
"name": "DB13",
"type": "output",
"description": "Parallel data bit 13 of the conversion result; must be connected to AGND when PAR/SER/BYTE_SEL is high."
},
{
"number": "32",
"name": "DB14/HBEN",
"type": "bidirectional",
"description": "Parallel data bit 14 in parallel mode; in parallel byte mode it selects MSB-first (HBEN = 1) or LSB-first (HBEN = 0) output, and must be tied to AGND when PAR/SER/BYTE_SEL is high outside byte mode."
},
{
"number": "33",
"name": "DB15/BYTE_SEL",
"type": "bidirectional",
"description": "Parallel data bit 15 (MSB) in parallel mode; when PAR/SER/BYTE_SEL is high it selects serial (0) or parallel byte (1) interface."
},
{
"number": "34",
"name": "REF_SELECT",
"type": "input",
"description": "Selects the internal 2.5 V reference when high; when low the internal reference is disabled and an external 2.5 V reference must be applied to REFIN/REFOUT."
},
{
"number": "35",
"name": "AGND",
"type": "power_in",
"description": "Analog ground; connect to the system AGND plane."
},
{
"number": "36",
"name": "REGCAP",
"type": "power_out",
"description": "Internal regulator output at about 1.9 V; decouple to AGND with 1 µF, and must not be tied directly to pin 39."
},
{
"number": "37",
"name": "AVCC",
"type": "power_in",
"description": "Analog supply pin, 4.75 V to 5.25 V; decouple to AGND with 100nF in parallel with 10µF (may share the decoupling capacitor with pin 38)."
},
{
"number": "38",
"name": "AVCC",
"type": "power_in",
"description": "Analog supply pin, 4.75 V to 5.25 V; decouple to AGND with 100nF in parallel with 10µF (may share the decoupling capacitor with pin 37)."
},
{
"number": "39",
"name": "REGCAP",
"type": "power_out",
"description": "Internal regulator output at about 1.9 V; decouple to AGND with 1 µF, and must not be tied directly to pin 36."
},
{
"number": "40",
"name": "AGND",
"type": "power_in",
"description": "Analog ground; connect to the system AGND plane."
},
{
"number": "41",
"name": "AGND",
"type": "power_in",
"description": "Analog ground; connect to the system AGND plane."
},
{
"number": "42",
"name": "REFIN/REFOUT",
"type": "bidirectional",
"description": "Outputs a 2.5 V internal reference when REF_SELECT is high or accepts a 2.5 V external reference when REF_SELECT is low; a 10 µF capacitor to REFGND is required in both cases."
},
{
"number": "43",
"name": "REFGND",
"type": "power_in",
"description": "Reference ground; connect to AGND."
},
{
"number": "44",
"name": "REFCAPA",
"type": "passive",
"description": "Reference buffer output at about 4 V; must be shorted to REFCAPB and decoupled to AGND with a 10 µF low-ESR ceramic capacitor."
},
{
"number": "45",
"name": "REFCAPB",
"type": "passive",
"description": "Reference buffer output at about 4 V; must be shorted to REFCAPA and decoupled to AGND with a 10 µF low-ESR ceramic capacitor."
},
{
"number": "46",
"name": "REFGND",
"type": "power_in",
"description": "Reference ground; connect to AGND."
},
{
"number": "47",
"name": "AGND",
"type": "power_in",
"description": "Analog ground; connect to the system AGND plane."
},
{
"number": "48",
"name": "AVCC",
"type": "power_in",
"description": "Analog supply pin, 4.75 V to 5.25 V; decouple to AGND with 100nF in parallel with 10µF."
},
{
"number": "49",
"name": "V1",
"type": "passive",
"description": "Single-ended bipolar analog input whose range (±10 V or ±5 V) is set by RANGE; input impedance is 1 MΩ and the clamp protects to ±18.5 V."
},
{
"number": "50",
"name": "V1GND",
"type": "power_in",
"description": "Ground return for analog input V1; connect to the system AGND plane."
},
{
"number": "51",
"name": "V2",
"type": "passive",
"description": "Single-ended bipolar analog input whose range (±10 V or ±5 V) is set by RANGE; input impedance is 1 MΩ and the clamp protects to ±18.5 V."
},
{
"number": "52",
"name": "V2GND",
"type": "power_in",
"description": "Ground return for analog input V2; connect to the system AGND plane."
},
{
"number": "53",
"name": "V3",
"type": "passive",
"description": "Single-ended bipolar analog input whose range (±10 V or ±5 V) is set by RANGE; input impedance is 1 MΩ and the clamp protects to ±18.5 V."
},
{
"number": "54",
"name": "V3GND",
"type": "power_in",
"description": "Ground return for analog input V3; connect to the system AGND plane."
},
{
"number": "55",
"name": "V4",
"type": "passive",
"description": "Single-ended bipolar analog input whose range (±10 V or ±5 V) is set by RANGE; input impedance is 1 MΩ and the clamp protects to ±18.5 V."
},
{
"number": "56",
"name": "V4GND",
"type": "power_in",
"description": "Ground return for analog input V4; connect to the system AGND plane."
},
{
"number": "57",
"name": "V5",
"type": "passive",
"description": "Single-ended bipolar analog input whose range (±10 V or ±5 V) is set by RANGE; input impedance is 1 MΩ and the clamp protects to ±18.5 V."
},
{
"number": "58",
"name": "V5GND",
"type": "power_in",
"description": "Ground return for analog input V5; connect to the system AGND plane."
},
{
"number": "59",
"name": "V6",
"type": "passive",
"description": "Single-ended bipolar analog input whose range (±10 V or ±5 V) is set by RANGE; input impedance is 1 MΩ and the clamp protects to ±18.5 V."
},
{
"number": "60",
"name": "V6GND",
"type": "power_in",
"description": "Ground return for analog input V6; connect to the system AGND plane."
},
{
"number": "61",
"name": "V7",
"type": "passive",
"description": "Single-ended bipolar analog input whose range (±10 V or ±5 V) is set by RANGE; input impedance is 1 MΩ and the clamp protects to ±18.5 V."
},
{
"number": "62",
"name": "V7GND",
"type": "power_in",
"description": "Ground return for analog input V7; connect to the system AGND plane."
},
{
"number": "63",
"name": "V8",
"type": "passive",
"description": "Single-ended bipolar analog input whose range (±10 V or ±5 V) is set by RANGE; input impedance is 1 MΩ and the clamp protects to ±18.5 V."
},
{
"number": "64",
"name": "V8GND",
"type": "power_in",
"description": "Ground return for analog input V8; connect to the system AGND plane."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.3",
"primary_model": "claude-haiku-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The datasheet's pin table gives BUSY as DI, but the function text describes it as a status output dr; The datasheet labels DB0-DB13 and FRSTDATA as DO, while DB0-DB6 and DB14/DB15 are described as paral; KiCad ERC has no analog class; analog inputs, reference buffer pins and REFCAPA/B were mapped to pas"
],
"pages_sent": 27,
"cost_usd": 0.1512,
"at": "2026-11-13T11:58:34"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/f8e62edad79b3ac6b5c725f82616c81a.pdf",
"pages": 27,
"sha256": "cb7e3944fcbcc7a7",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 64,
"described": 64,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "cm2248-qfptr.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
12,
12,
1.5
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "b0c827bc5c05552175d28affe44a5bd2ab45c9c36efff6ff07a74cc449b13db4",
"checked": "2026-11-13",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "cm2248-qfptr-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
12,
12,
1.5
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "f6770433512dc62aba5bbae6cae0d67cac33adb9eb7da2f65d9f4f4d6f0e8552",
"checked": "2026-11-13",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
],
"package_dims": {
"package_code": "LQFP64",
"source_page": 27,
"D": {
"nom_mm": 10,
"range_mm": [
9.9,
10.1
]
},
"E1": {
"nom_mm": 10,
"range_mm": [
9.9,
10.1
]
},
"E": {
"nom_mm": 12,
"range_mm": [
11.8,
12.2
]
},
"e": {
"nom_mm": 0.5,
"range_mm": [
null,
null
]
},
"A": {
"nom_mm": 1.6,
"range_mm": [
null,
1.6
]
},
"source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
"model_check": {
"file": "cm2248-qfptr.step",
"verdict": "PASS",
"reasons": [
"height and body within the datasheet's package drawing"
],
"by": "factory/package_fit.py"
}
}
},
"metadata": {
"specs": {
"Manufacturer": "CIMO",
"Package": "LQFP-64(10x10)",
"Category": "ADC/DAC/Data Conversion",
"Pins": "64"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "cb7e3944fcbcc7a71317db588f0193cc221c6eb6adc4af004f2cd337b84b7fd2",
"rows": [
{
"name": "SNR",
"symbol": "SNR",
"kind": "electrical",
"unit": "dB",
"min": 89.5,
"typ": 92,
"max": null,
"conditions": "±10V 单端",
"source_page": 9,
"source": "datasheet"
},
{
"name": "SNR",
"symbol": "SNR",
"kind": "electrical",
"unit": "dB",
"min": 88.5,
"typ": 91,
"max": null,
"conditions": "±5V 单端",
"source_page": 9,
"source": "datasheet"
},
{
"name": "SINAD",
"symbol": "SINAD",
"kind": "electrical",
"unit": "dB",
"min": 89.2,
"typ": 92,
"max": null,
"conditions": "±10V 单端",
"source_page": 9,
"source": "datasheet"
},
{
"name": "SINAD",
"symbol": "SINAD",
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