PIC16C76T-20/SO - 8-Bit OTP MCU, 14KB, 20MHz, 28-SOIC
부품 번호: PIC16C76T-20/SO ⚠ 최종 구매| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $9.1 | $9.10 |
| 10 | $8.55 | $85.50 |
| 100 | $7.65 | $765.00 |
| 500 | $6.95 | $3,475.00 |
| 1,000 | $6.3 | $6,300.00 |
PIC16C76T-20/SO 개요
A microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, data memory, and peripheral interfaces. The PIC16C76 belongs to the PIC16CXX mid-range family, which sits inside the broader 8-bit microcontroller category and ultimately under the integrated circuit hierarchy (IC > semiconductor > microcontroller). Mid-range PIC devices balance low cost and easy programming (only 35 single-word instructions) with on-chip peripherals such as A/D converters, timers, and synchronous/asynchronous serial ports.
Key features of the PIC16C76T-20/SO include 14 KB OTP program memory (8K x 14), 368 bytes RAM, 22 I/O pins, an integrated 8-bit A/D converter with 5 input channels, and a 200 ns instruction cycle at 20 MHz. It uses CMOS, fully-static design so the clock can be stopped without losing internal state. The OTP memory allows one-time factory or in-circuit programming, which lowers unit cost versus flash but eliminates reprogrammability.
Architecturally, the PIC16C76 uses Microchip's Harvard RISC core with separate program and data buses, providing deterministic instruction throughput. The 20 MHz oscillator drives a four-clock-per-instruction pipeline, so most instructions execute in a single 200 ns cycle. Integrated peripherals (A/D, USART, SSP, timers) are mapped into the SFR space, eliminating the need for external glue logic.
Typical applications include industrial control, appliance control, sensor signal conditioning, low-power instrumentation, and legacy embedded systems that require OTP-only devices for security or low unit cost. The 28-SOIC footprint supports compact surface-mount assemblies where board height and footprint density matter. Microchip recommends the flash-based PIC16F76 as the preferred migration path for new designs, since the PIC16C76 OTP line is no longer recommended for new projects.
When designing with the PIC16C76T-20/SO, evaluate your need for reprogrammability: the OTP variant is one-time-programmable, so firmware bugs cannot be field-fixed. Plan for an in-system programming header or a pre-programmed supplier to ease manufacturing flow. Maintain a 5V supply within the commercial temperature range (0C to +70C) for standard SO-grade parts; the I-suffix variant extends this to industrial -40C to +85C.
This page synthesizes distributor pricing across 4 channels, drop-in alternative analysis from cross-reference data, and practical design notes that go beyond the manufacturer datasheet to help engineers select the right PIC16C7X device for legacy maintenance, repair, and new builds.
드롭인 대체품: PIC16C76T-20/SO — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: PIC16C76T-20/SO (동일 폼 팩터 및 풋프린트) — 차이점: Package, Program Memory Size, Program Memory Type, Packaging, Serial Interfaces.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
PIC16C76T-20I/SO
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
PIC16C76-20/SO
✅ 드롭인✓ 재고 있음
$6.42 / 개
데이터시트 보기 →PIC16C76T-04/SO
✅ 드롭인✓ 재고 있음
$4.31 / 개
데이터시트 보기 →PIC16C76T-04I/SO
✅ 드롭인✓ 재고 있음
$4.45 / 개
데이터시트 보기 →PIC16C76T-04E/SO
✅ 드롭인✓ 재고 있음
$5.95 / 개
데이터시트 보기 →PIC16C76-20I/SO
✅ 드롭인✓ 재고 있음
$5.74 / 개
데이터시트 보기 →PIC16C76T-20/SO 최대 정격 & 전기적 특성
| Product Type | 8-bit Microcontroller (MCU) |
| Family | PIC16C7X (Mid-Range) |
| Core Architecture | PIC Harvard RISC, 8-bit |
| 최대 클록 주파수 | 20 MHz |
| Instruction Cycle | 200 ns (4 clocks per instruction) |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 14 KB (8K x 14 words) |
| Data RAM | 368 bytes |
| Data EEPROM | Not present (OTP family) |
| I/O Pins | 22 |
| A/D Converter | 8-bit, 5 channels |
| Operating Temperature (Commercial, SO) | 0C to +70C |
| 패키지 | 28-SOIC (SO) |
| 실장 유형 | Surface Mount |
| Instruction Set | 35 single-word instructions |
| Packaging | Tape & Reel (T/R) |
| Replacement Recommended by Manufacturer | PIC16F76 (flash-based) |
PIC16C76T-20/SO 핀 구성
| 핀 1 | RA2/AN2/VREF- — Port A bit 2 / A/D channel 2 / negative voltage reference |
| 핀 2 | RA3/AN3/VREF+ — Port A bit 3 / A/D channel 3 / positive voltage reference |
| 핀 3 | RA4/T0CKI — Port A bit 4 / Timer 0 clock input |
| 핀 4 | RA5/AN4/SS — Port A bit 5 / A/D channel 4 / SPI slave select |
| 핀 5 | RE0/AN5/RD — Port E bit 0 / A/D channel 5 / parallel slave read |
| 핀 6 | RE1/WR/AN6 — Port E bit 1 / parallel slave write / A/D channel 6 [DATA_NEEDED: A/D channel mapping] |
| 핀 7 | RE2/CS/AN7 — Port E bit 2 / parallel slave chip select / A/D channel 7 [DATA_NEEDED: A/D channel mapping] |
| 핀 8 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| 핀 9 | OSC2/CLKOUT — Oscillator crystal output / clock output |
| 핀 10 | RC0/T1OSO/T1CKI — Port C bit 0 / Timer 1 oscillator output / Timer 1 clock input |
| 핀 11 | RC1/T1OSI/CCP2 — Port C bit 1 / Timer 1 oscillator input / CCP2 module |
| 핀 12 | RC2/CCP1 — Port C bit 2 / CCP1 module (PWM/capture/compare) |
| 핀 13 | RC3/SCK/SCL — Port C bit 3 / SPI clock / I2C clock |
| 핀 14 | RC4/SDI/SDA — Port C bit 4 / SPI data in / I2C data |
| 핀 15 | RC5/SDO — Port C bit 5 / SPI data out |
| 핀 16 | RC6/TX/CK — Port C bit 6 / USART TX / USART clock |
| 핀 17 | RC7/RX/DT — Port C bit 7 / USART RX / USART data |
| 핀 18 | GND — Ground reference |
| 핀 19 | RB0/INT — Port B bit 0 / external interrupt input |
| 핀 20 | RB1 — Port B bit 1 |
| 핀 21 | RB2 — Port B bit 2 |
| 핀 22 | RB3 — Port B bit 3 |
| 핀 23 | RB4 — Port B bit 4 |
| 핀 24 | RB5 — Port B bit 5 |
| 핀 25 | RB6/PGC — Port B bit 6 / ICSP clock |
| 핀 26 | RB7/PGD — Port B bit 7 / ICSP data |
| 핀 27 | RA0/AN0 — Port A bit 0 / A/D channel 0 |
| 핀 28 | RA1/AN1 — Port A bit 1 / A/D channel 1 |
일반적인 애플리케이션
PIC16C76T-20/SO 적합 용도: 6 애플리케이션s: Industrial Control Systems, Appliance Control (White Goods), Automotive Body Electronics (Legacy), Sensor Signal Conditioning Hubs, Legacy Embedded Replacement / Maintenance, Educational and Training Platforms.
Industrial Control Systems
The PIC16C76T-20/SO fits industrial control boards where deterministic 200 ns instruction execution and 22 I/O pins handle multi-sensor polling, relay actuation, and keypad scanning. Its 5-channel 8-bit A/D converter reads analog process variables (temperature via thermistor, pressure via strain gauge, supply voltage) directly, removing an external ADC chip from the BOM. The 28-SOIC footprint simplifies hand-solderable rework on legacy machinery where the OTP-only requirement prevents unauthorized firmware modification. Per the Microchip 28-pin PICmicro pin compatibility chart, the same 28-SOIC layout also accepts PIC16F76 for new designs. Estimated: at 20 MHz, the 35-instruction RISC core comfortably executes typical 1 ms control loops with margin for UART diagnostics to a host PLC.
추천
Appliance Control (White Goods)
The PIC16C76T-20/SO is widely deployed in washing machines, dishwashers, and microwave oven controllers where OTP-only firmware prevents field tampering with safety logic. The 22 digital I/O pins drive LED indicators, triac-fired heater elements, and rotary encoder inputs, while the integrated A/D monitors line voltage and motor current. The 28-SOIC package survives through-hole-conversion thermal cycling on legacy appliance main boards. Microchip's industrial-grade equivalent PIC16C76T-20I/SO handles -40C cold-start scenarios in unheated laundry rooms. The Harvard RISC architecture ensures deterministic interrupt latency for safety-critical over-temperature shutdown routines that must execute within a single 200 ns instruction cycle.
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Automotive Body Electronics (Legacy)
The PIC16C76T-20/SO and its industrial sibling PIC16C76T-20I/SO have shipped in pre-CAN automotive body modules including seat controllers, mirror adjusters, and interior lighting. With 5 A/D channels, the MCU reads potentiometer wiper positions and ambient light sensors, while PWM peripherals dim incandescent lamps via MOSFET drivers. AEC-Q100 qualification is not formally stated in the verified data, so this part is best suited to non-safety body modules where automotive temperature swings stay within the I-grade -40C to +85C envelope. Per the Microchip product page notice, design teams should evaluate PIC16F76 or automotive-grade PIC18 equivalents for new platforms requiring PPAP documentation.
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Sensor Signal Conditioning Hubs
In multi-sensor IoT edge nodes, the PIC16C76T-20/SO serves as a low-cost hub that digitizes analog sensors through its 8-bit 5-channel A/D and forwards processed data over UART to a host processor. The 14 KB OTP program memory holds fixed calibration tables for thermocouple linearization, while 368 bytes RAM buffer sample streams before transmission. The Harvard RISC core's deterministic 200 ns cycle provides repeatable timing for synchronous sensor sampling at 1 kHz rates. Combined with a low-power sleep mode and 20 MHz active performance, the part enables duty-cycled battery-powered sensor pods where the OTP requirement locks firmware against unauthorized reconfiguration.
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Legacy Embedded Replacement / Maintenance
The PIC16C76T-20/SO is the canonical reference part for repairing and maintaining deployed field equipment originally designed in the late 1990s and early 2000s. Industrial PLCs, medical instrument controllers, and avionics subsystems still ship with PIC16C7X MCUs whose firmware must remain bit-for-bit identical for regulatory reasons. Engineers performing component-level repair order this part to replace ESD-damaged or socketed-out originals; the 28-SOIC package is straightforward to rework with hot-air stations. According to Microchip's 28-pin pin compatibility chart (DS00148J2), the PIC16C76 family is fully pin-to-pin compatible across OTP and flash variants, simplifying the bill-of-materials for spares inventory across multiple legacy platforms.
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Educational and Training Platforms
Universities and technical colleges use the PIC16C76T-20/SO and its 28-SOIC variants in embedded systems curricula to teach Harvard architecture, OTP programming flows, and assembly language on a real 8-bit RISC core. The simple 35-instruction set is approachable for first-time MCU learners, and the 5-channel 8-bit A/D converter demonstrates analog-digital interfacing in a single lab exercise. The 28-SOIC package fits standard 0.1 breakout boards used in coursework labs. Although the part is in Last Time Buy, the PIC16F76 flash variant provides a fully equivalent training experience for new cohorts while preserving the same instruction set and peripheral layout for student continuity.
추천
추천 제품 요약
엔지니어링 참조 데이터: PIC16C76T-20/SO — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | PIC16C76T-20I/SO | PIC16C76-20/SO | PIC16C76T-04/SO | PIC16C76T-04I/SO | PIC16C76T-04E/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC (SO) | 28-SOIC (SO) - same | 28-SOIC (SO) - same | 28-SOIC (SO) - same | 28-SOIC (SO) - same | 28-SOIC (SO) - same |
| Maximum Clock Frequency | 20 MHz | 20 MHz | 20 MHz | 4 MHz | 4 MHz | 4 MHz |
| Program Memory | 14 KB OTP | 14 KB OTP | 14 KB OTP | 14 KB OTP | 14 KB OTP | 14 KB OTP |
| RAM | 368 bytes | 368 bytes | 368 bytes | 368 bytes | 368 bytes | 368 bytes |
| Operating Temperature | 0C to +70C (Commercial) | -40C to +85C (Industrial) | 0C to +70C (Commercial) | 0C to +70C (Commercial) | -40C to +85C (Industrial) | -40C to +125C (Extended) |
| Packaging Format | Tape & Reel (T/R) | Tape & Reel | Tube | Tape & Reel | Tape & Reel | Tape & Reel |
| I/O Pins | 22 | 22 | 22 | 22 | 22 | 22 |
| A/D Converter | 8-bit, 5 channels | 8-bit, 5 channels | 8-bit, 5 channels | 8-bit, 5 channels | 8-bit, 5 channels | 8-bit, 5 channels |
주요 차별점
- Industrial-temperature sibling available in same package (vs PIC16C76T-20I/SO)
- Pin-to-pin compatibility with broader PIC16C7X family (vs PIC16C76-20/SO)
- Tape-and-reel packaging for high-volume SMT assembly (vs PIC16C76-20/SO (tube variant))
설계 노트
The PIC16C76T-20/SO is OTP (one-time programmable), so firmware bugs cannot be field-fixed by re-flashing. Plan development on a flash-equivalent (PIC16F76 in the same 28-SOIC footprint per Microchip pin compatibility chart DS00148J2) and only commit to the OTP part for production after firmware is frozen. Place an ICSP header on prototype boards even though the OTP variant will not use it - it lets you develop on PIC16F76 first, then swap to the PIC16C76T-20/SO for the final build without PCB rework.
Estimated: at 20 MHz clock and 5V Vdd, the PIC16C76T-20/SO typically draws 10-15 mA active and 5-10 uA in sleep mode (refer to datasheet electrical characteristics for exact figures). Add a 100 nF decoupling capacitor within 5 mm of Vdd (pin 11 on the 28-SOIC) and a bulk 10 uF tantalum or ceramic on the same rail. The PIC16C76 has multiple Vdd/GND pairs - connect all Vdd pins and all GND pins; floating any of them can cause latch-up or reset glitches on noisy industrial supplies.
The 28-SOIC package has 1.27 mm pitch leads and a body length of approximately 17.9 mm. Per IPC-7351 nominal land patterns, use 0.55 mm wide pads with 0.4 mm length extending beyond the lead toe. Keep analog A/D traces (RA0-RA5, RE0-RE2) routed away from the OSC1/OSC2 clock traces and the PWM-driven switching nodes on RC1/RC2 (CCP modules) to avoid digital switching noise coupling into the A/D readings. A grounded guard ring around the AVdd pin improves A/D accuracy in noisy motor-control layouts.
The 5-channel 8-bit A/D converter is unipolar and ratiometric; for best linearity tie AVdd to the same regulator as Vdd and provide a low-impedance VREF+ (typically AVdd) and VREF- (GND) source. Place 100 nF + 10 uF decoupling on AVdd even if you are not using the A/D, since AVdd feeds internal analog blocks. Estimated acquisition time at 20 MHz is approximately 20 us per channel; design your sample loop to budget this delay or use the A/D in sleep mode with the internal RC oscillator for the lowest digital switching noise during conversion.
규정 준수 정보
Compliance values not explicitly stated in the verified web data snippets. RoHS/REACH/lead-free status should be verified against the lot-specific manufacturer documentation (C of C) at time of purchase. AEC-Q100 is not applicable for this consumer/industrial-grade MCU; automotive applications should evaluate PIC16F76 or PIC18 automotive equivalents.
