PIC16C55A-20E/SP - 8-Bit 20MHz OTP MCU 768B | Microchip
부품 번호: PIC16C55A-20E/SP ✗ 단종| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $8.92 | $8.92 |
| 10 | $8.04 | $80.40 |
| 100 | $7.18 | $718.00 |
| 500 | $6.46 | $3,230.00 |
| 1,000 | $5.74 | $5,740.00 |
PIC16C55A-20E/SP 개요
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, and peripheral interfaces into one package. The PIC16C5X baseline family uses a 12-bit-wide instruction set with a RISC architecture, delivering roughly 2:1 code compression over competing 8-bit MCUs in the same price class - meaning engineers can fit equivalent application logic in half the program memory. OTP program memory lets manufacturers ship pre-programmed parts at low cost without exposing internal flash to outside programming.
Key features of the PIC16C55A include 20 I/O pins, a Power-On Reset (POR) circuit, a Watchdog Timer (WDT) for runaway code recovery, an 8-bit timer/counter, and a 4 MHz internal RC oscillator option. The device operates across 3.0V to 6.25V (industrial Vdd range typical for PIC16C5X) and consumes very low active current, suiting battery and line-powered embedded designs. The PIC16C5X 12-bit instruction width keeps the decoder compact and predictable for deterministic control loops.
Typical applications include appliance control boards, simple sensor signal conditioning, LED driver sequencing, automotive body controllers (with the E temp grade), HVAC fan/timer logic, and industrial relay-driver replacement logic. The 28-pin SPDIP footprint is also convenient for breadboarding and educational use because it fits standard DIP sockets and through-hole prototyping boards.
When designing with the PIC16C55A-20E/SP, plan for OTP programming flow using the MPLAB PM3 programmer or compatible device programmer, since OTP parts cannot be re-programmed in-circuit after the programming window is closed. Use the WDT and POR together for robust field recovery, and budget the 25-byte RAM carefully - this is a baseline PIC, not a mid-range PIC16F, so C-stack depth and large buffers will exhaust RAM quickly.
드롭인 대체품: PIC16C55A-20E/SP — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: PIC16C55A-20E/SP (동일 폼 팩터 및 풋프린트) — 차이점: Package, Mounting Type, Operating Temperature, Program Memory Size, Family.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
PIC16C55A-20/SP
✅ 드롭인✓ 재고 있음
$3.69 / 개
데이터시트 보기 →PIC16C55A-04E/SP
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$2.05 / 개
데이터시트 보기 →PIC16C55A-04/P
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$2.18 / 개
데이터시트 보기 →PIC16C55A-20I/SP
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$3.01 / 개
데이터시트 보기 →PIC16C55A-20E/SO
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$5.65 / 개
데이터시트 보기 →PIC16F57-I/SP
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
PIC16C55A-20E/SP 최대 정격 & 전기적 특성
| Product Family | PIC16C5X (PIC® 16C baseline) |
| Core Architecture | 8-bit RISC, 12-bit instruction word |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 768 B (512 x 12-bit words) |
| RAM | 25 B |
| 최대 클록 주파수 | 20 MHz |
| Operating Voltage (Vdd) | 3.0 V to 6.25 V (industrial range per datasheet) |
| I/O Pins | 20 |
| Timers | 1 x 8-bit timer/counter |
| Watchdog Timer (WDT) | Yes |
| Power-On Reset (POR) | Yes |
| Internal RC Oscillator | 4 MHz typical (nominal) |
| Temperature Grade | Extended Industrial (-40C to +125C), "E" suffix |
| 패키지 | 28-pin SPDIP (SP), through-hole DIP, 0.300 in / 7.62 mm row pitch |
| 실장 유형 | Through-Hole |
| Terminal Form / Pin Count | Through-Hole, 28 terminals |
PIC16C55A-20E/SP 핀 구성
| 핀 1 | RA2 — Port A digital I/O bit 2 |
| 핀 2 | RA3 — Port A digital I/O bit 3 |
| 핀 3 | RA4/T0CKI — Port A digital I/O bit 4 / Timer0 clock input |
| 핀 4 | MCLR — Master Clear (reset) input, active low |
| 핀 5 | Vss — Ground reference |
| 핀 6 | RB0/INT — Port B digital I/O bit 0 / External interrupt input |
| 핀 7 | RB1 — Port B digital I/O bit 1 |
| 핀 8 | RB2 — Port B digital I/O bit 2 |
| 핀 9 | RB3 — Port B digital I/O bit 3 |
| 핀 10 | RB4 — Port B digital I/O bit 4 |
| 핀 11 | RB5 — Port B digital I/O bit 5 |
| 핀 12 | RB6 — Port B digital I/O bit 6 |
| 핀 13 | RB7 — Port B digital I/O bit 7 |
| 핀 14 | Vdd — Positive supply voltage (3.0V to 6.25V) |
| 핀 15 | OSC2/CLKOUT — Oscillator output / clock out |
| 핀 16 | OSC1/CLKIN — Oscillator input / clock in |
| 핀 17 | RC0 — Port C digital I/O bit 0 |
| 핀 18 | RC1 — Port C digital I/O bit 1 |
| 핀 19 | RC2 — Port C digital I/O bit 2 |
| 핀 20 | RC3 — Port C digital I/O bit 3 |
| 핀 21 | RC4 — Port C digital I/O bit 4 |
| 핀 22 | RC5 — Port C digital I/O bit 5 |
| 핀 23 | RC6 — Port C digital I/O bit 6 |
| 핀 24 | RC7 — Port C digital I/O bit 7 |
| 핀 25 | RA0 — Port A digital I/O bit 0 |
| 핀 26 | RA1 — Port A digital I/O bit 1 |
| 핀 27 | RA5 — Port A digital I/O bit 5 |
| 핀 28 | RA6 — Port A digital I/O bit 6 |
일반적인 애플리케이션
PIC16C55A-20E/SP 적합 용도: 6 애플리케이션s: Appliance Control Boards, Automotive Body Controllers, Industrial Sensor Signal Conditioning, HVAC Fan and Timer Logic, LED Display and Sign Sequencers, Educational and Hobby Embedded Boards.
Appliance Control Boards
The PIC16C55A-20E/SP fits appliance control boards (washing machines, dishwashers, microwave ovens) because its 20 MHz instruction rate at 5 MIPS gives ample throughput for motor control loops, its 20 I/O pins directly drive seven-segment displays and keypads, and the Extended Industrial -40C to +125C temperature grade survives hot laundry-room and kitchen-cabinet environments. With 768 bytes of OTP program memory, manufacturers lock the firmware once and ship sealed units at low BOM cost. The internal Watchdog Timer plus Power-On Reset protects against brown-outs during compressor inrush cycles. Unlike mid-range PIC16F parts, OTP forces suppliers to absorb firmware-iteration costs, but in return the part is roughly 30% cheaper per unit.
추천
Automotive Body Controllers
For automotive body controllers (window lifters, mirror adjusters, seat-position memory), the PIC16C55A-20E/SP is selected because the "E" suffix guarantees operation across -40C to +125C - matching the AEC-Q100 Grade 1 thermal envelope used for non-safety body modules. The 20 MHz baseline core handles LIN-bus software UART bit-banging and PWM mirror-fold sequencing without saturating the 25-byte RAM. Power-On Reset and Watchdog Timer together survive the cranking-voltage transients common in 12V automotive harnesses. Compared with the PIC16F57 successor, the OTP variant favors cost-driven sealed production where firmware is frozen after validation.
추천
Industrial Sensor Signal Conditioning
In industrial sensor-interface boards (4-20 mA loop transmitters, thermocouple front-ends, limit-switch multiplexers), the PIC16C55A-20E/SP serves as a low-cost digital front-end that linearizes analog inputs and formats data for upstream PLCs. The 20 MHz clock performs 10-bit software ADC conversions in under 200 us per channel, the 20 I/O pins route multiple sensor channels, and the Extended Industrial temperature rating supports outdoor or cabinet-mounted deployments. The PIC16C5X baseline 12-bit instruction set keeps deterministic loop timing, which is critical for IEC 61131-style control loops. Compared with discrete logic implementations, this MCU cuts board area roughly 4x.
추천
HVAC Fan and Timer Logic
The PIC16C55A-20E/SP is well matched to HVAC fan controllers, defrost timers, and zone-damper actuators because the Extended Industrial -40C to +125C grade operates in attic, rooftop, and refrigeration-coil environments, while the 8-bit timer/counter generates accurate PWM for variable-speed blower motors. The 25-byte RAM is sufficient for state machines tracking fan mode, setpoint, and hysteresis without paging to external memory. Power-On Reset survives compressor brown-outs, and the Watchdog Timer recovers from firmware faults that could otherwise leave a damper stuck open. Compared with mechanical cam timers, this MCU cuts assembly cost by roughly 50%.
추천
LED Display and Sign Sequencers
For LED message signs, scrolling marquees, and channel-letter animators, the PIC16C55A-20E/SP drives 20 outputs directly - enough to multiplex an 8-digit 7-segment display with row/column scan - and the 20 MHz instruction rate refreshes the display without visible flicker at typical 100 Hz rates. The 768-byte OTP stores character tables and animation sequences compactly. The "E" temperature grade suits outdoor sign installations exposed to direct sunlight and winter cold. Compared with discrete 555-based sequencers, this MCU replaces 4-6 analog ICs and lets designers re-target firmware per sign via OTP programming.
추천
Educational and Hobby Embedded Boards
The PIC16C55A-20E/SP in SPDIP-28 remains popular in university embedded courses and hobbyist projects because the through-hole package fits standard 28-pin DIP sockets and breadboards without surface-mount rework. The PIC16C5X 12-bit baseline instruction set is small enough (35 instructions) for students to master in one semester, and the 25-byte RAM forces disciplined memory budgeting - a useful teaching constraint. The Extended Industrial temp grade also lets lab projects survive accidental shorts and overheating better than finer-pitch parts. Compared with modern 32-bit dev boards, the PIC16C55A keeps the focus on fundamentals: I/O, timers, interrupts, and assembly.
추천
추천 제품 요약
엔지니어링 참조 데이터: PIC16C55A-20E/SP — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | PIC16C55A-20/SP | PIC16C55A-04E/SP | PIC16C55A-04/P | PIC16C55A-20I/SP | PIC16C55A-20E/SO | PIC16F57-I/SP |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SPDIP-28 (SP) | SPDIP-28 (SP) - same | SPDIP-28 (SP) - same | SPDIP-28 (SP) - same | SPDIP-28 (SP) - same | SOIC-28 (SO) - surface mount | SPDIP-28 (SP) - same |
| Maximum Clock Frequency | 20 MHz | 20 MHz | 4 MHz | 4 MHz | 20 MHz | 20 MHz | 20 MHz |
| Program Memory | 768 B OTP (512 x 12) | 768 B OTP | 768 B OTP | 768 B OTP | 768 B OTP | 768 B OTP | 2K words Flash |
| RAM | 25 B | 25 B | 25 B | 25 B | 25 B | 25 B | 72 B |
| Temperature Grade | Extended Industrial (-40C to +125C) | Commercial (0C to +70C) | Extended Industrial (-40C to +125C) | Commercial (0C to +70C) | Industrial (-40C to +85C) | Extended Industrial (-40C to +125C) | Industrial (-40C to +85C) |
| Memory Type | OTP (one-time programmable) | OTP | OTP | OTP | OTP | OTP | Flash (reprogrammable) |
| I/O Pins | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
주요 차별점
- Extended Industrial temperature grade on a baseline OTP die (vs PIC16C55A-20/SP)
- 20 MHz instruction throughput at the lowest cost tier (vs PIC16C55A-04E/SP)
- Drop-in 28-pin SPDIP compatibility with flash-based PIC16F57 successor (vs PIC16F57-I/SP)
설계 노트
PIC16C55A is OTP (One-Time Programmable), not flash. There is no in-circuit reprogramming window - once the programming pin sequence closes, the part cannot be re-flashed. Validate firmware on a PIC16F57 or PIC16C55A JW (windowed) sample before committing to OTP volume orders, and budget for MPLAB PM3 programming tooling at the contract manufacturer.
PIC16C5X baseline parts operate from 3.0V to 6.25V. At 5V with the 20 MHz oscillator, current draw is typically 5-10 mA active and sub-1 uA in sleep. Place a 100 nF ceramic decoupling capacitor as close as possible to the Vdd pin (pin 14) with a short trace to Vss (pin 5) to suppress switching-noise coupling into the internal bandgap reference.
The SPDIP-28 footprint is through-hole and tolerates hand-soldering and IC sockets. Keep the MCLR pull-up resistor (typically 10 kohm) within 5 mm of pin 4 to avoid spurious resets from capacitive coupling. If using an external crystal, route OSC1/OSC2 traces over a continuous ground pour and keep them short to avoid stray pickup on the high-impedance clock input.
Estimated: at 5V Vdd, 20 MHz oscillator, 100% active CPU, the PIC16C55A-20E/SP typically draws about 8-10 mA, dissipating roughly 40-50 mW - no heatsink required even at 125C ambient. However, high source-current loads on multiple I/O pins (e.g., driving 8 LEDs at 20 mA each) add 160 mA per port; verify total package dissipation against the SPDIP-28 thermal resistance of approximately 70 C/W before pushing I/O to the limit.
규정 준수 정보
PIC16C55A-20E/SP is a through-hole SPDIP part from the legacy PIC16C5X OTP family. Microchip's product page does not surface RoHS/REACH compliance badges for this NRND part; confirm with the manufacturer or distributor before using in RoHS-restricted designs. AEC-Q100 qualification is not claimed - automotive users should validate EMC and temperature performance to their specific module requirements.
