PIC16C64A-04I/P - 8-Bit 4MHz OTP MCU 3.5KB | Microchip
부품 번호: PIC16C64A-04I/P ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $9.85 | $9.85 |
| 10 | $8.92 | $89.20 |
| 100 | $7.84 | $784.00 |
| 500 | $6.95 | $3,475.00 |
| 1,000 | $6.1 | $6,100.00 |
PIC16C64A-04I/P 개요
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, working RAM, and programmable I/O peripherals. The PIC16C family uses a RISC (Reduced Instruction Set Computer) architecture with only 35 single-word instructions, making it one of the easiest 8-bit MCU families to learn. MCUs sit within the broader embedded-computing hierarchy: microcontroller -> embedded processor -> semiconductor IC. The OTP variant means the program memory is user-programmable exactly once via a device programmer, then becomes read-only, making it suitable for low-cost, high-volume production where firmware is finalized.
Key features include 33 digital I/O pins, an 8-bit timer/counter, a 16-bit timer/counter with capture/compare/PWM, an analog comparator, and a synchronous serial port (SSP) supporting SPI and I2C master/slave modes. The PIC16C64A's RISC pipeline executes most instructions in a single instruction cycle (200 ns at 20 MHz, 1 us at 4 MHz), giving deterministic timing suitable for real-time control loops. Power consumption is optimized through sleep mode with wake-up via interrupt or watchdog.
Typical applications include industrial control systems, appliance controllers, automotive body electronics, simple sensor interfaces, and replacement of discrete logic circuits. The 40-pin PDIP package remains popular for through-hole prototyping, breadboarding, and educational platforms where socketed or hand-soldered parts simplify development. Industrial-grade temperature qualification supports factory-floor deployment.
The newer Microchip PIC16F877A is the recommended Flash-memory successor with the same 40-pin pinout, in-circuit debugging, and 10x more program memory. The legacy PIC16C64A is generally used today only for legacy maintenance or exact BOM-replication tasks where OTP is acceptable. Engineers should confirm long-term availability before designing in this part.
This page consolidates distributor pricing, drop-in compatible PIC16C alternatives, and practical design considerations not found in the manufacturer datasheet alone, helping engineers evaluate whether PIC16C64A-04I/P fits their application or whether a Flash-based successor is more appropriate for new designs.
드롭인 대체품: PIC16C64A-04I/P — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: PIC16C64A-04I/P (동일 폼 팩터 및 풋프린트) — 차이점: Package, Timers, Watchdog Timer, Mounting Type, Core Architecture.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
PIC16C64B-04I/P
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
PIC16C65B-04I/P
✅ 드롭인✓ 재고 있음
$3.75 / 개
데이터시트 보기 →PIC16C64A-04I/L
✅ 드롭인✓ 재고 있음
$4.5 / 개
데이터시트 보기 →PIC16F74-I/P
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
PIC16F877A-I/P
✅ 드롭인✓ 재고 있음
가격 문의
데이터시트 보기 →PIC16C622A-04I/P
✅ 드롭인✓ 재고 있음
$1.95 / 개
데이터시트 보기 →PIC16C64A-04I/P 최대 정격 & 전기적 특성
| Core Architecture | 8-bit PIC RISC |
| Instruction Set | 35 single-word instructions |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 3.5 KB (2K x 14) |
| RAM | 128 bytes |
| Data EEPROM | 0 bytes |
| 최대 클록 주파수 | 4 MHz (-04 speed grade) |
| Instruction Cycle Time | 1 us at 4 MHz |
| Operating Voltage Min | 2.5 V |
| Operating Voltage Max | 6.0 V |
| I/O Pins | 33 |
| Timers | 1 x 8-bit + 1 x 16-bit with CCP |
| Analog Peripherals | Analog Comparator |
| Serial Interfaces | SSP (SPI / I2C master-slave), USART |
| 패키지 | 40-pin PDIP (Plastic DIP, 0.600 in) |
| 실장 유형 | Through-Hole |
| 동작 온도 | -40C to +85C (Industrial) |
| 핀 수 | 40 |
| RoHS 상태 | Non-Compliant (contains lead, PDIP) |
| MSL 레벨 | 1 (unlimited floor life, no bake required) |
PIC16C64A-04I/P 핀 구성
| 핀 1 | MCLR — Master Clear (reset) input, active low |
| 핀 2 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| 핀 3 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| 핀 4 | RA2/AN2 — PORTA bit 2 / analog input 2 |
| 핀 5 | RA3/AN3/VREF — PORTA bit 3 / analog input 3 / VREF |
| 핀 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| 핀 7 | RA5/SS/AN4 — PORTA bit 5 / SPI slave select / analog input 4 |
| 핀 8 | OSC1/CLKIN — Oscillator crystal input / external clock in |
| 핀 9 | OSC2/CLKOUT — Oscillator crystal output / clock out |
| 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 |
| 핀 12 | RC2/CCP1 — PORTC bit 2 / Capture-Compare-PWM1 |
| 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 transmit / USART clock |
| 핀 17 | RC7/RX/DT — PORTC bit 7 / USART receive / USART data |
| 핀 18 | RD0/PSP0 — PORTD bit 0 / Parallel Slave Port bit 0 |
| 핀 19 | RD1/PSP1 — PORTD bit 1 / Parallel Slave Port bit 1 |
| 핀 20 | RD2/PSP2 — PORTD bit 2 / Parallel Slave Port bit 2 |
| 핀 21 | RD3/PSP3 — PORTD bit 3 / Parallel Slave Port bit 3 |
| 핀 22 | RD4/PSP4 — PORTD bit 4 / Parallel Slave Port bit 4 |
| 핀 23 | RD5/PSP5 — PORTD bit 5 / Parallel Slave Port bit 5 |
| 핀 24 | RD6/PSP6 — PORTD bit 6 / Parallel Slave Port bit 6 |
| 핀 25 | RD7/PSP7 — PORTD bit 7 / Parallel Slave Port bit 7 |
| 핀 26 | VSS — Ground reference |
| 핀 27 | VDD — Positive supply voltage |
| 핀 28 | RB0/INT — PORTB bit 0 / external interrupt |
| 핀 29 | RB1 — PORTB bit 1 |
| 핀 30 | RB2 — PORTB bit 2 |
| 핀 31 | RB3 — PORTB bit 3 |
| 핀 32 | RB4 — PORTB bit 4 |
| 핀 33 | RB5 — PORTB bit 5 |
| 핀 34 | RB6/PGC — PORTB bit 6 / ICSP clock |
| 핀 35 | RB7/PGD — PORTB bit 7 / ICSP data |
| 핀 36 | RE0/RD/AN5 — PORTE bit 0 / read control / analog input 5 |
| 핀 37 | RE1/WR/AN6 — PORTE bit 1 / write control / analog input 6 |
| 핀 38 | RE2/CS/AN7 — PORTE bit 2 / chip select / analog input 7 |
| 핀 39 | VDD — Positive supply voltage (second VDD pin) |
| 핀 40 | VSS — Ground reference (second VSS pin) |
일반적인 애플리케이션
PIC16C64A-04I/P 적합 용도: 6 애플리케이션s: Industrial Control Systems, Appliance Controllers, Automotive Body Electronics, Sensor Interface Hubs, Educational Development Platforms, Legacy Replacement / Maintenance.
Industrial Control Systems
The PIC16C64A-04I/P fits industrial control applications thanks to its industrial-grade temperature range (-40C to +85C), 4 MHz deterministic RISC execution, and 33 GPIO pins for sensor and actuator interfacing. With a 1 us instruction cycle at 4 MHz, the MCU provides tight loop timing for PID control loops, conveyor sequencing, and machine-tool auxiliary logic. The OTP memory and PDIP-40 through-hole package simplify field-replacement and legacy-system maintenance in factory-floor installations where socketed parts are favored.
추천
Appliance Controllers
White-goods appliance controllers (washing machines, dishwashers, microwave ovens) historically use PIC16C64A-series MCUs because the OTP memory locks firmware at production and the 40-pin PDIP package accepts hand-soldered rework. The PIC16C64A's analog comparator enables zero-crossing detection for triac-driven heater and motor loads, while the USART supports simple keypad or display panel interfaces. Sleep mode with interrupt wake-up extends battery life in cordless appliance variants.
추천
Automotive Body Electronics
Automotive body modules (window lift controllers, mirror adjusters, seat controllers, lighting drivers) commonly use PIC16C64A-class MCUs because of their industrial temperature range, robust RISC architecture, and 25 mA sink capability on each I/O pin for direct relay driving. The synchronous serial port (SSP) interfaces to SPI-controlled LED drivers or keypad scanners. For new designs, automotive-grade equivalents like PIC16F877A-I/P with AEC-Q100 qualification are preferred, but PIC16C64A-04I/P remains in legacy vehicle platforms.
추천
Sensor Interface Hubs
Sensor interface and signal-conditioning hubs benefit from PIC16C64A-04I/P's analog comparator for threshold detection, 16-bit timer for pulse-width measurement, and 33 digital I/O for multiplexing multiple sensor channels. The 4 MHz clock and 1 us instruction cycle deliver deterministic sampling rates suitable for low-bandwidth sensor fusion (temperature, humidity, simple motion). The 128-byte RAM accommodates small data buffers; larger buffers require migration to PIC16F877A's 368 bytes RAM.
추천
Educational Development Platforms
PIC16C64A-04I/P's 40-pin PDIP package and breadboard-friendly 0.1-inch pin pitch make it a popular choice for university microcontroller courses and embedded-systems training. The PIC16C RISC instruction set (35 single-word instructions) is documented in countless textbooks, and the OTP nature teaches students about production-grade firmware commitments. Modern curricula typically use Flash-based PIC16F877A-I/P for in-circuit reprogramming, but PIC16C64A-04I/P remains in legacy lab kits.
추천
Legacy Replacement / Maintenance
PIC16C64A-04I/P is most commonly specified today as a maintenance replacement for legacy equipment where OEM firmware was written for this exact OTP die. Industrial controllers, scientific instruments, and military systems designed in the late 1990s often require this exact part number to preserve firmware compatibility. The 40-pin PDIP socketed package simplifies field replacement without desoldering. Active production status at Microchip supports ongoing supply for installed-base maintenance through 2026 and beyond.
추천
추천 제품 요약
엔지니어링 참조 데이터: PIC16C64A-04I/P — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | PIC16C64B-04I/P | PIC16C65B-04I/P | PIC16F74-I/P | PIC16F877A-I/P | PIC16C622A-04I/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 40-pin PDIP | 40-pin PDIP (same) | 40-pin PDIP (same) | 40-pin PDIP (same) | 40-pin PDIP (same) | 40-pin PDIP (same) |
| Program Memory Type | OTP | OTP | OTP | Flash | Flash | OTP |
| Program Memory Size | 3.5 KB | 7.2 KB | 7.2 KB | 4 KB | 14 KB | 3.5 KB |
| RAM | 128 bytes | 192 bytes | 192 bytes | 192 bytes | 368 bytes | 128 bytes |
| Maximum Clock Frequency | 4 MHz | 4 MHz | 4 MHz | 20 MHz | 20 MHz | 4 MHz |
| ADC | None | None | None | 8-ch 8-bit | 8-ch 10-bit | None |
| I/O Pins | 33 | 33 | 33 | 33 | 33 | 33 |
| Temperature Grade | Industrial (-40C to +85C) | Industrial | Industrial | Industrial | Industrial | Industrial |
주요 차별점
- OTP memory locks firmware for tamper-proof production (vs PIC16F877A-I/P)
- Industry-standard 40-pin PDIP pinout enables drop-in upgrades (vs PIC16C622A-04I/P)
- Industrial temperature range for factory-floor deployment (vs PIC16C64A-04/P)
설계 노트
PIC16C64A-04I/P typically draws 10-15 mA at 5V and 4 MHz active, dropping to microampere-level sleep currents (typically <5 uA). Place a 100 nF decoupling capacitor within 5 mm of each VDD pin (pins 11 and 32), and add a bulk 10 uF tantalum or ceramic at the board's power entry. For battery-backed designs, route the MCLR pin through a 10 kohm pull-up to ensure clean reset behavior across voltage drops. Estimated: based on datasheet typical I_DD figures for PIC16C family at 4 MHz.
When laying out the 40-pin PDIP footprint, reserve a 0.1-inch pin pitch through-hole pattern with at least 0.6 inch row spacing (standard PDIP-40 mechanical outline). Keep the oscillator traces (OSC1/OSC2) short and surrounded by a ground guard ring to minimize EMI coupling. Place the ICSP clock and data lines (RB6/PGC, RB7/PGD) near an in-circuit programming header for production programming convenience. For high-noise industrial environments, add TVS diodes on MCLR and external interrupt pins.
Critical OTP consideration: PIC16C64A-04I/P program memory is one-time-programmable - once programmed, it cannot be erased or rewritten. Plan firmware versions carefully and use a UV-erase windowed package variant (PIC16C64A-04I/L, ceramic LCC) for development, then transition to the plastic PDIP for production. Verify configuration bits (oscillator selection, watchdog enable, code protect) before programming because incorrect settings cannot be reversed. Always read back and verify the programmed device before soldering or shipping.
The analog comparator inputs (RA0-RA5) share pins with digital I/O; when used in analog mode, decouple these traces from digital switching signals and route them away from clock lines. Place the comparator reference voltage (RA3/VREF) source close to the pin with a 100 nF bypass capacitor. For SPI/I2C bus lines (RC3/RC4/RC5), keep series resistors (typically 100 ohm) close to the MCU end to dampen reflections in longer bus runs.
규정 준수 정보
PDIP-40 plastic package contains lead solder, making this part non-RoHS compliant. For RoHS-compliant applications, use the surface-mount PIC16C64A-04I/SO or PIC16F877A-I/P variants. REACH compliance is per Microchip product declarations. AEC-Q100 automotive qualification is not applicable for this industrial-grade part; for automotive use, consider PIC16F877A-I/P automotive variants.
