component
PIC16F876AT-I
Public Made by Adomby adom
Microchip Tech Microcontrollers (MCU/MPU/SOC), SOIC-28-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"description": "Microchip Tech Microcontrollers (MCU/MPU/SOC), SOIC-28-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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"embedded processors & controllers",
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"component": {
"mpn": "PIC16F876AT-I",
"manufacturer": "Microchip Tech",
"package": "SOIC-28-300mil",
"pin_count": 28,
"category": "Embedded Processors & Controllers",
"subcategory": "Microcontrollers (MCU/MPU/SOC)",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589795842367385600",
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"distributor_check": {
"checked_at": "2026-10-18T07:18:49Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "MCLR/VPP",
"type": "input",
"description": "Active-low Master Clear (Reset) input to the device through an ST buffer, which also serves as the programming voltage input (VPP)."
},
{
"number": "2",
"name": "RA0/AN0",
"type": "bidirectional",
"description": "PORTA bidirectional digital I/O (TTL buffer) that also serves as analog input 0."
},
{
"number": "3",
"name": "RA1/AN1",
"type": "bidirectional",
"description": "PORTA bidirectional digital I/O (TTL buffer) that also serves as analog input 1."
},
{
"number": "4",
"name": "RA2/AN2/VREF-/CVREF",
"type": "bidirectional",
"description": "PORTA bidirectional digital I/O (TTL buffer) that also serves as analog input 2, the A/D reference voltage (low) input, and the comparator VREF output."
},
{
"number": "5",
"name": "RA3/AN3/VREF+",
"type": "bidirectional",
"description": "PORTA bidirectional digital I/O (TTL buffer) that also serves as analog input 3 and the A/D reference voltage (high) input."
},
{
"number": "6",
"name": "RA4/T0CKI/C1OUT",
"type": "bidirectional",
"description": "PORTA bidirectional digital I/O (ST buffer), open-drain when configured as an output, that also serves as the Timer0 external clock input and the Comparator 1 output."
},
{
"number": "7",
"name": "RA5/AN4/SS/C2OUT",
"type": "bidirectional",
"description": "PORTA bidirectional digital I/O (TTL buffer) that also serves as analog input 4, the SPI slave select input, and the Comparator 2 output."
},
{
"number": "8",
"name": "VSS",
"type": "power_in",
"description": "Ground reference for logic and I/O pins."
},
{
"number": "9",
"name": "OSC1/CLKI",
"type": "input",
"description": "Oscillator crystal input or external clock source input (ST buffer in RC mode, otherwise CMOS)."
},
{
"number": "10",
"name": "OSC2/CLKO",
"type": "output",
"description": "Oscillator crystal output connecting to a crystal or resonator; in RC mode it outputs CLKO at 1/4 the OSC1 frequency, denoting the instruction cycle rate."
},
{
"number": "11",
"name": "RC0/T1OSO/T1CKI",
"type": "bidirectional",
"description": "PORTC bidirectional digital I/O (ST buffer) that also serves as the Timer1 oscillator output and the Timer1 external clock input."
},
{
"number": "12",
"name": "RC1/T1OSI/CCP2",
"type": "bidirectional",
"description": "PORTC bidirectional digital I/O (ST buffer) that also serves as the Timer1 oscillator input and the CCP2 capture input / compare output / PWM output."
},
{
"number": "13",
"name": "RC2/CCP1",
"type": "bidirectional",
"description": "PORTC bidirectional digital I/O (ST buffer) that also serves as the CCP1 capture input / compare output / PWM output."
},
{
"number": "14",
"name": "RC3/SCK/SCL",
"type": "bidirectional",
"description": "PORTC bidirectional digital I/O (ST buffer) that also serves as the synchronous serial clock input/output for SPI mode and for I2C mode."
},
{
"number": "15",
"name": "RC4/SDI/SDA",
"type": "bidirectional",
"description": "PORTC bidirectional digital I/O (ST buffer) that also serves as the SPI data input and the I2C data I/O."
},
{
"number": "16",
"name": "RC5/SDO",
"type": "bidirectional",
"description": "PORTC bidirectional digital I/O (ST buffer) that also serves as the SPI data output."
},
{
"number": "17",
"name": "RC6/TX/CK",
"type": "bidirectional",
"description": "PORTC bidirectional digital I/O (ST buffer) that also serves as the USART asynchronous transmit output and the USART synchronous clock."
},
{
"number": "18",
"name": "RC7/RX/DT",
"type": "bidirectional",
"description": "PORTC bidirectional digital I/O (ST buffer) that also serves as the USART asynchronous receive input and the USART synchronous data."
},
{
"number": "19",
"name": "VSS",
"type": "power_in",
"description": "Ground reference for logic and I/O pins."
},
{
"number": "20",
"name": "VDD",
"type": "power_in",
"description": "Positive supply for logic and I/O pins."
},
{
"number": "21",
"name": "RB0/INT",
"type": "bidirectional",
"description": "PORTB bidirectional digital I/O (TTL/ST buffer, Schmitt trigger when used as external interrupt) with internal weak pull-up programmable, that also serves as the external interrupt input."
},
{
"number": "22",
"name": "RB1",
"type": "bidirectional",
"description": "PORTB bidirectional digital I/O (TTL buffer) with software-programmable internal weak pull-up."
},
{
"number": "23",
"name": "RB2",
"type": "bidirectional",
"description": "PORTB bidirectional digital I/O (TTL buffer) with software-programmable internal weak pull-up."
},
{
"number": "24",
"name": "RB3/PGM",
"type": "bidirectional",
"description": "PORTB bidirectional digital I/O (TTL buffer) that also serves as the low-voltage (single-supply) ICSP programming enable pin."
},
{
"number": "25",
"name": "RB4",
"type": "bidirectional",
"description": "PORTB bidirectional digital I/O (TTL buffer) with software-programmable internal weak pull-up."
},
{
"number": "26",
"name": "RB5",
"type": "bidirectional",
"description": "PORTB bidirectional digital I/O (TTL buffer) with software-programmable internal weak pull-up."
},
{
"number": "27",
"name": "RB6/PGC",
"type": "bidirectional",
"description": "PORTB bidirectional digital I/O (TTL/ST buffer) that also serves as the in-circuit debugger and ICSP programming clock."
},
{
"number": "28",
"name": "RB7/PGD",
"type": "bidirectional",
"description": "PORTB bidirectional digital I/O (TTL/ST buffer) that also serves as the in-circuit debugger and ICSP programming data."
}
],
"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 28-pin pinout is given as one table with a shared pin-number column for PDIP, SOIC and SSOP (Tab; The ordering code PIC16F876AT-I is not explained in the provided text. The product identification sy"
],
"pages_sent": 37,
"cost_usd": 0.2127,
"at": "2026-10-18T07:16:37"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589795842367385600",
"pages": 234,
"sha256": "94f1cb4c43edd96e",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 28,
"described": 28,
"cites_pages": true,
"refuses_to_fabricate": true
}
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