PIC16C77-10I/PT - 8-bit OTP MCU, 14KB, 33 I/O, 44-TQFP | Microchip
부품 번호: PIC16C77-10I/PT ✗ 단종| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $8.69 | $8.69 |
| 10 | $7.95 | $79.50 |
| 100 | $7.1 | $710.00 |
| 500 | $6.3 | $3,150.00 |
| 1,000 | $5.65 | $5,650.00 |
PIC16C77-10I/PT 개요
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, and a configurable set of peripherals (ADC, timers, communication ports, GPIO) into one package. Within the broader product hierarchy, the PIC16C77 belongs to the 8-bit microcontroller category, which itself sits within the microcontroller family and the larger integrated-circuit class used in embedded systems. The 'OTP' (one-time-programmable) designation means the program memory can be written exactly once via a programmer, after which the code is permanent - this makes OTP MCUs economical for mature, low-cost-volume production.
Key differentiating features include 200 ns instruction execution (5 MIPS at 10 MHz), a RISC architecture with only 35 single-word instructions, an 8-channel 8-bit ADC for mixed-signal sensing, dual PWM outputs for motor or lighting control, and a versatile USART plus configurable SSP. Compared with flash equivalents in the PIC16F family, the OTP memory trades re-programmability for unit-cost reduction in shipping products.
Architecturally the PIC16C77 uses a Harvard bus (separate program and data paths) with a 14-bit-wide instruction word and an 8-bit data path, yielding compact code density. The CMOS static design allows the clock to be slowed or stopped for low-power operation, and the brown-out reset, watchdog timer, and power-on reset blocks harden the device against real-world supply noise.
Typical applications include industrial motor control (using the CCP PWM and USART for inverter feedback), process instrumentation (with the 8-channel ADC scanning sensors), appliance control boards, security and access-control panels, and embedded data-acquisition front-ends. The 44-TQFP package provides ample I/O for human-machine interface or field-bus use.
When designing with the PIC16C77-10I/PT, plan for OTP programming logistics: a windowed (JW) version is required for code development and verification, after which the OTP-PT part is programmed in production. Provide clean 5 V decoupling and route the analog AVdd/AVss pins with separated grounds to preserve ADC accuracy.
This page consolidates distributor stock, drop-in alternatives in the same TQFP-44 footprint, comparison data versus the flash PIC16F77 successor, and practical design notes not found on any single distributor listing.
드롭인 대체품: PIC16C77-10I/PT — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: PIC16C77-10I/PT (동일 폼 팩터 및 풋프린트) — 차이점: Core Architecture, Serial Interfaces, Package, Timers, Instruction Set.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
PIC16F77-I/PT
✅ 드롭인✓ 재고 있음
$5.4 / 개
데이터시트 보기 →PIC16C77-10I/P
✅ 드롭인✓ 재고 있음
$6.1 / 개
데이터시트 보기 →PIC16C77-10/PT
✅ 드롭인✓ 재고 있음
$5.7 / 개
데이터시트 보기 →PIC16C77-04I/PT
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
PIC16C67-10I/PT
✅ 드롭인✓ 재고 있음
$5.1 / 개
데이터시트 보기 →PIC16C74BT-04I/PT
✅ 드롭인✓ 재고 있음
$7.1 / 개
데이터시트 보기 →PIC16C77-10I/PT 최대 정격 & 전기적 특성
| Program Memory Size | 14 KB (8K x 14) |
| Program Memory Type | OTP (One-Time Programmable) |
| RAM Size | 368 x 8 bytes |
| EEPROM Size | None |
| Number of I/O Pins | 33 |
| CPU Core | PIC16C7X (8-bit Harvard RISC) |
| Instruction Set | 35 single-word instructions |
| 최대 클록 주파수 | 10 MHz |
| Instruction Execution Time | 200 ns |
| ADC | 8 channels, 8-bit resolution |
| Timers | 2 x 8-bit + 1 x 16-bit |
| CCP/PWM Modules | 2 |
| Serial Interfaces | SSP (SPI / I2C) + USART/SCI |
| 패키지 | 44-pin TQFP (PT) |
| 실장 유형 | Surface Mount |
| 동작 온도 | -40C to +85C (industrial, 'I' suffix) |
| Lead-Free / RoHS | RoHS status depends on lot date code - verify with supplier |
PIC16C77-10I/PT 핀 구성
| 핀 1 | OSC1/CLKIN — Oscillator input or external clock input pin |
| 핀 2 | RA0/AN0 — PORTA bit 0 / Analog input channel 0 |
| 핀 3 | RA1/AN1 — PORTA bit 1 / Analog input channel 1 |
| 핀 4 | RA2/AN2 — PORTA bit 2 / Analog input channel 2 |
| 핀 5 | RA3/AN3/VREF — PORTA bit 3 / Analog input channel 3 / ADC VREF+ |
| 핀 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| 핀 7 | RA5/AN4/SS — PORTA bit 5 / Analog input channel 4 / SSP slave select |
| 핀 8 | Vss — Ground reference |
| 핀 9 | OSC2/CLKOUT — Oscillator output or clock output (Fosc/4) |
| 핀 10 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock input |
| 핀 11 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 I/O |
| 핀 12 | RC2/CCP1 — PORTC bit 2 / CCP1 I/O |
| 핀 13 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| 핀 14 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| 핀 15 | RC5/SDO — PORTC bit 5 / SPI data out |
| 핀 16 | RC6/TX/CK — PORTC bit 6 / USART TX / USART clock |
| 핀 17 | RC7/RX/DT — PORTC bit 7 / USART RX / USART data |
| 핀 18 | Vss — Ground reference |
| 핀 19 | Vdd — Positive supply voltage |
| 핀 20 | RB0/INT — PORTB bit 0 / External interrupt input |
| 핀 21 | RB1 — PORTB bit 1 |
| 핀 22 | RB2 — PORTB bit 2 |
| 핀 23 | RB3 — PORTB bit 3 |
| 핀 24 | RB4 — PORTB bit 4 |
| 핀 25 | RB5 — PORTB bit 5 |
| 핀 26 | RB6/PGC — PORTB bit 6 / In-circuit debugger clock |
| 핀 27 | RB7/PGD — PORTB bit 7 / In-circuit debugger data |
| 핀 28 | Vss — Ground reference |
| 핀 29 | AVdd — Analog positive supply voltage |
| 핀 30 | AVss — Analog ground reference |
| 핀 31 | RD0/PSP0 — PORTD bit 0 / Parallel Slave Port bit 0 |
| 핀 32 | RD1/PSP1 — PORTD bit 1 / Parallel Slave Port bit 1 |
| 핀 33 | RD2/PSP2 — PORTD bit 2 / Parallel Slave Port bit 2 |
| 핀 34 | RD3/PSP3 — PORTD bit 3 / Parallel Slave Port bit 3 |
| 핀 35 | RD4/PSP4 — PORTD bit 4 / Parallel Slave Port bit 4 |
| 핀 36 | RD5/PSP5 — PORTD bit 5 / Parallel Slave Port bit 5 |
| 핀 37 | RD6/PSP6 — PORTD bit 6 / Parallel Slave Port bit 6 |
| 핀 38 | RD7/PSP7 — PORTD bit 7 / Parallel Slave Port bit 7 |
| 핀 39 | Vss — Ground reference |
| 핀 40 | Vdd — Positive supply voltage |
| 핀 41 | RE0/RD/AN5 — PORTE bit 0 / Parallel Slave Port read / Analog input channel 5 |
| 핀 42 | RE1/WR/AN6 — PORTE bit 1 / Parallel Slave Port write / Analog input channel 6 |
| 핀 43 | RE2/CS/AN7 — PORTE bit 2 / Parallel Slave Port chip select / Analog input channel 7 |
| 핀 44 | MCLR/Vpp — Master clear reset input / Programming voltage |
일반적인 애플리케이션
PIC16C77-10I/PT 적합 용도: 7 애플리케이션s: Industrial Motor Control, Process Instrumentation & Data Acquisition, Appliance Control Boards, Security and Access Control Panels, Automotive Body Electronics (Legacy), Embedded Data Acquisition Front-End, Consumer Electronics User Interface Boards.
Industrial Motor Control
The PIC16C77-10I/PT's two CCP/PWM modules, 10 MHz clock, and 8-channel 8-bit ADC make it a strong fit for industrial motor control. Each PWM channel can drive a half-bridge gate driver at switching frequencies up to 40 kHz, while the ADC simultaneously samples DC-bus current, phase voltage, and temperature feedback. With 14 KB of OTP code, the firmware can host a complete sensorless trapezoidal or simple FOC commutation routine plus UART-based Modbus reporting. The 33 GPIO lines provide enough headroom for limit switches, brake drivers, and fault indicators without an external I/O expander.
추천
Process Instrumentation & Data Acquisition
The PIC16C77-10I/PT's 8-channel 8-bit ADC and USART directly serve process-instrumentation front-ends. Each ADC channel can scan a thermocouple, RTD bridge, 4-20 mA loop, or pressure transducer with 8-bit resolution, while the USART streams the digitized values to a host PLC or display at 9600-115200 baud. The 368-byte RAM is enough for moving averages and alarm thresholds, and the industrial -40C to +85C range supports outdoor panel mounting. OTP programming locks the calibration coefficients in place, preventing accidental field-tampering of the instrument firmware.
추천
Appliance Control Boards
White-goods and appliance control boards (washing machines, dishwashers, microwave ovens) commonly use a PIC16C77-10I/PT at the heart of the user-interface and motor controller. The MCU drives the seven-segment or LCD display via GPIO, scans the keypad matrix, and times the wash cycles using its 16-bit Timer1. The PWM outputs regulate the universal motor, drain pump, and water-inlet valves, while the USART interfaces to the inverter board or a service-diagnostic plug. The OTP memory keeps the BOM cost low on a fully debugged, mass-produced appliance platform.
추천
Security and Access Control Panels
The PIC16C77-10I/PT suits access-control and security panels because it integrates a USART for card-reader communication, GPIO for keypad and indicator LEDs, and an SSP port for an external EEPROM logging every badge event. Its 8-channel ADC can monitor battery voltage, tamper switches, and PIR sensor outputs, while the 33 I/O lines drive door strikes, sirens, and a 4x4 matrix keypad. The OTP memory locks the security firmware to prevent on-board tampering, and the -40C to +85C industrial range handles outdoor or unheated vestibule installations.
추천
Automotive Body Electronics (Legacy)
Although Microchip's automotive-grade PIC family has largely superseded the PIC16C77-10I/PT, the part remains in service in some legacy automotive body-electronics modules such as window lift controllers, mirror adjusters, and seat-position memories. Its -40C to +85C industrial temperature range and 33 GPIO ports are sufficient for these tasks. The CCP/PWM outputs can drive small DC motors and the USART can communicate with the body-control network. Note that AEC-Q100 automotive qualification is not applicable to the standard PIC16C77-10I/PT.
추천
Embedded Data Acquisition Front-End
The PIC16C77-10I/PT works well as a stand-alone data-acquisition front-end that streams 8-bit ADC samples over UART or SPI to a host PC. With 8 ADC channels sampled sequentially, the effective throughput is 10-50 ksamples/s depending on firmware overhead. The 368-byte RAM can buffer short bursts before the USART, smoothing out host-side latency. The configurable SSP port also allows an external high-speed ADC or DAC to be added when 8-bit resolution is insufficient, making the PIC16C77-10I/PT a flexible mixed-signal front-end for laboratory and field instrumentation.
추천
Consumer Electronics User Interface Boards
The PIC16C77-10I/PT is a practical choice for the user-interface board of mid-range consumer products where cost dominates. It can scan a 4x4 keypad matrix, drive a 16-character LCD, read rotary encoders via its 16-bit Timer1, and exchange settings with the main processor over USART. The 33 GPIO pins eliminate the need for an I/O expander, and the industrial temperature range covers the -10C to +60C range typical of indoor consumer products. OTP memory prevents end-user firmware tampering in cost-sensitive markets.
추천
추천 제품 요약
엔지니어링 참조 데이터: PIC16C77-10I/PT — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | PIC16F77-I/PT | PIC16C77-10I/P | PIC16C77-10/PT | PIC16C77-04I/PT | PIC16C67-10I/PT | PIC16C74BT-04I/PT |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin TQFP (PT) | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same |
| Max Clock Frequency | 10 MHz | 20 MHz | 10 MHz | 10 MHz | 4 MHz | 10 MHz | 4 MHz |
| Number of I/O | 33 | 33 | 33 | 33 | 33 | 33 | 33 |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | 0C to +70C (Commercial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| Lifecycle Status | Obsolete | Active (recommended replacement) | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
주요 차별점
- Direct flash-based successor with identical pinout (vs PIC16F77-I/PT)
- Highest clock speed in the family at 10 MHz (vs PIC16C77-04I/PT)
- Industrial temperature range for harsh environments (vs PIC16C77-10/PT)
설계 노트
Estimated: At 10 MHz clock with all peripherals active, the PIC16C77-10I/PT typically draws 10-20 mA from Vdd = 5 V, giving power dissipation of roughly 50-100 mW. Decouple Vdd/Vss (pins 19 and 40) with a 100 nF ceramic cap placed within 5 mm of each pin, and add a bulk 10 uF tantalum or aluminum-polymer cap near the package. Tie the AVdd/AVss pair (pins 29/30) to a separate analog ground island and decouple with 100 nF + 10 uF to keep ADC noise low.
Route the analog AVdd/AVss pair with a dedicated analog ground island that joins the digital ground at a single point near the Vss pin. Place the ADC input traces away from the PWM switching traces (RC1/RC2 CCP pins) to minimize digital-to-analog crosstalk. For the 44-TQFP package, keep the four-layer PCB stack-up with continuous ground and power planes under the MCU to keep EMI and supply noise low.
Do not exceed the absolute maximum Vdd of 7.0 V; design for a regulated 5 V +/- 10% supply. The MCLR/Vpp pin (pin 44) requires a 10 kohm pull-up to Vdd for normal operation; for in-circuit programming, add a diode clamp to limit Vpp rise to 13.5 V. Always develop code on a windowed (JW) PIC16C77 or on the flash PIC16F77 first - OTP parts cannot be erased, so a programming error bricks the device permanently.
The PIC16C77-10I/PT's 8-bit ADC has a recommended source impedance below 10 kohm for full accuracy. Add an op-amp buffer (such as an MCP6002) between high-impedance sensors and the AN0-AN7 inputs to preserve the 8-bit conversion. For the USART lines (RC6/RC7), keep traces short (< 50 mm) and add 100 ohm series termination if baud rates exceed 57600 to suppress reflections.
규정 준수 정보
RoHS and lead-free status depend on the specific date code and supplier lot; the obsolete status means RoHS compliance varies. AEC-Q100 qualification does not apply - the part is not automotive-grade. Verify compliance per lot when sourcing from distributors.