PIC16C622A-40/P - 8-Bit EPROM MCU, 3.5KB, 40MHz, PDIP-18
부품 번호: PIC16C622A-40/P ✗ 단종| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.55 | $25.50 |
| 100 | $2.18 | $218.00 |
| 500 | $1.95 | $975.00 |
| 1,000 | $1.74 | $1,740.00 |
PIC16C622A-40/P 개요
The PIC16C622A is part of the PIC16C62X family of 18 and 20-pin ROM/EPROM-based microcontrollers. An EPROM-based MCU (Erasable Programmable Read-Only Memory microcontroller) is a member of the broader 8-bit microcontroller category and sits inside the larger hierarchy of microcontrollers -> embedded microcontrollers -> microprocessors -> semiconductors. EPROM-based parts are one-time or window-erasable and are typically used for prototype development and low-volume production where Flash-based devices are not yet validated.
Key features include 13 I/O pins with individual direction control, one 8-bit timer (TMR0) with an 8-bit prescaler, a Watchdog Timer with its own on-chip RC oscillator for reliable recovery, Power-on Reset, Power-up Timer, and Oscillator Start-up Timer. The integrated analog comparator supports up to four input channels via the AN0-AN3 pins, enabling direct interface with analog sensors without an external op-amp. The CMOS process provides low power consumption, with a typical supply current of only a few milliamps at full clock.
Architecturally, the PIC16C622A uses a Harvard-style RISC core with a 14-bit instruction word and an 8-bit data path. The 35-instruction set, all single-cycle except branches, simplifies coding and timing analysis. The device supports external crystal, ceramic resonator, or RC oscillator configurations, plus a low-power LP oscillator option for battery-powered designs. The EPROM cell enables window-erasable prototype iteration when the JW package variant is used.
Typical applications include appliance control, automotive body electronics, industrial sensor interfaces, low-cost remote controls, and consumer white goods where the integrated comparator simplifies analog front-end design. Compared with mask-ROM siblings, the EPROM variant is preferred for engineering samples and pre-production runs.
Designers should note that the PIC16C622A is OTP (One-Time Programmable) in the plastic PDIP package and is not re-programmable in-circuit; verify firmware carefully before programming. The 40MHz speed grade requires a 10MHz input clock at the maximum 4:1 PLL-less oscillator configuration.
This page synthesizes distributor stock and pricing, drop-in EPROM/Flash equivalents in the same PDIP-18 footprint, and practical design notes not found in the manufacturer datasheet alone.
드롭인 대체품: PIC16C622A-40/P — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: PIC16C622A-40/P (동일 폼 팩터 및 풋프린트) — 차이점: Package, ADC, Operating Temperature, Timers, I/O Pins.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
PIC16F88-I/P
✅ 드롭인✓ 재고 있음
$2.61 / 개
데이터시트 보기 →PIC16F1825-I/P
✅ 드롭인✓ 재고 있음
$1.23 / 개
데이터시트 보기 →PIC16C621A-40/P
✅ 드롭인✓ 재고 있음
$0.49 / 개
데이터시트 보기 →PIC16C622-40/P
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
PIC16C622A-04E/P
✅ 드롭인✓ 재고 있음
$1.3 / 개
데이터시트 보기 →PIC16C622A-40/P 최대 정격 & 전기적 특성
| Product Type | 8-bit Microcontroller (EPROM/ROM-based) |
| Family | PIC16C62X (PICmicro mid-range) |
| Program Memory Type | EPROM (OTP in PDIP package) |
| Program Memory Size | 3.5 KB (2K x 14 words) |
| RAM Size | 128 bytes |
| Maximum CPU Frequency | 40 MHz |
| Supply Voltage Range | 2.5 V to 5.5 V (3.3 V / 5 V nominal) |
| Number of I/O Pins | 13 |
| Timers | 1 x 8-bit (TMR0) with prescaler |
| Watchdog Timer | Yes (with dedicated on-chip RC oscillator) |
| Analog Comparator | Yes, 1 (4 input channels via AN0-AN3) |
| ADC | None (no integrated ADC) |
| Instruction Set | 35 single-word instructions (14-bit wide) |
| Oscillator Modes | XT, HS, LP, RC (external crystal/resonator/RC) |
| 패키지 | 18-pin PDIP (Plastic DIP, 0.300 inch / 7.62mm pitch) |
| 동작 온도 | 0C to +70C (commercial grade) |
| 실장 유형 | Through-Hole |
| Tube Quantity | 25 pcs per tube (per industry standard) |
PIC16C622A-40/P 핀 구성
| 핀 1 | RA2/AN2 — Bidirectional I/O / analog comparator input 2 |
| 핀 2 | RA3/AN3 — Bidirectional I/O / analog comparator input 3 |
| 핀 3 | RA4/T0CKI — Bidirectional I/O / TMR0 external clock input |
| 핀 4 | MCLR/VPP — Master Clear (Reset) input / programming voltage |
| 핀 5 | VSS — Ground reference |
| 핀 6 | RB0/INT — Bidirectional I/O / external interrupt input |
| 핀 7 | RB1 — Bidirectional I/O |
| 핀 8 | RB2 — Bidirectional I/O |
| 핀 9 | RB3 — Bidirectional I/O |
| 핀 10 | RB4 — Bidirectional I/O |
| 핀 11 | RB5 — Bidirectional I/O |
| 핀 12 | RB6 — Bidirectional I/O |
| 핀 13 | RB7 — Bidirectional I/O |
| 핀 14 | VDD — Positive supply (2.5V to 5.5V) |
| 핀 15 | OSC2/CLKOUT — Oscillator crystal output / clock output |
| 핀 16 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| 핀 17 | RA0/AN0 — Bidirectional I/O / analog comparator input 0 |
| 핀 18 | RA1/AN1 — Bidirectional I/O / analog comparator input 1 |
일반적인 애플리케이션
PIC16C622A-40/P 적합 용도: 6 애플리케이션s: Appliance Control Boards, Automotive Body Electronics, Industrial Sensor Interfaces, Remote Control Transmitters, Consumer White Goods (Coffee Makers, Toasters), Hobbyist and Educational Boards.
Appliance Control Boards
The PIC16C622A-40/P is well suited to appliance control boards (washing machines, dishwashers, microwave ovens) because its 3.5 KB EPROM holds state-machine firmware plus lookup tables, while the integrated analog comparator directly senses line-voltage-derived signals via a resistive divider on AN0-AN3. The 40 MHz instruction throughput executes sensor-scan loops in microseconds, comfortably debouncing mechanical switches and timing relay drivers. OTP EPROM security prevents firmware extraction by competing service shops, which matters for brand-protection in white goods.
추천
Automotive Body Electronics
In automotive body modules (mirror control, seat-position memory, lighting drivers) the PIC16C622A-40/P delivers 13 digital I/O to drive relays and read switches without an external I/O expander. The 2.5 V to 5.5 V supply range tolerates load-dump transients when paired with proper bulk capacitance. The integrated comparator monitors current-sense signals from lamp drivers. Designers should note the commercial 0C to +70C temp range is too narrow for under-hood modules; choose -40C to +125C industrial grade or PIC16F88-I/P instead.
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Industrial Sensor Interfaces
Sensor interface modules (4-20 mA loop readers, thermistor bridges, photodiode amplifiers) benefit from the PIC16C622A-40/P's integrated analog comparator, which converts low-level analog signals directly to digital interrupts without an external op-amp. The 8-bit TMR0 with prescaler generates precise time bases for sensor-sampling windows. The Watchdog Timer recovers the MCU from firmware lockups caused by EMI in factory-floor environments. EPROM OTP security protects calibration coefficients embedded in firmware.
추천
Remote Control Transmitters
Low-cost IR/RF remote controls use the PIC16C622A-40/P to encode button presses into Manchester or pulse-width modulation without an external encoder IC. The 13 I/O directly scan 6x3 matrix keypads, while TMR0 generates precise carrier frequencies (typically 38 kHz for IR). EPROM OTP prevents code extraction, protecting proprietary encoding schemes. The 2.5 V to 5.5 V supply enables two-AA-battery operation; quiescent current in sleep mode extends battery life to years.
추천
Consumer White Goods (Coffee Makers, Toasters)
Small kitchen appliances leverage the PIC16C622A-40/P's integrated comparator to monitor temperature via NTC thermistor divider networks, eliminating an external op-amp and reducing BOM cost. The 13 I/O drive LEDs, triac-based heater control, and buzzer feedback directly. The 35-instruction RISC core simplifies coding for non-engineering teams. EPROM OTP is acceptable in this price-sensitive market where firmware rarely changes after release.
추천
Hobbyist and Educational Boards
The PIC16C622A-40/P appears in legacy hobbyist designs and educational microcontroller trainers because of its simple 35-instruction RISC architecture, easy-to-program EPROM (via MPLAB PM3), and forgiving 2.5 V to 5.5 V supply. The integrated analog comparator introduces students to mixed-signal interfacing without an ADC. For new courses, instructors should consider PIC16F88-I/P instead, since it adds in-circuit debugging and eliminates the EPROM eraser step.
추천
추천 제품 요약
엔지니어링 참조 데이터: PIC16C622A-40/P — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | PIC16F88-I/P | PIC16F1825-I/P | PIC16C621A-40/P | PIC16C622-40/P | PIC16C622A-04E/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | PDIP-18 (Through-Hole) | PDIP-18 - same | PDIP-18 - same | PDIP-18 - same | PDIP-18 - same | PDIP-18 - same |
| Program Memory | 3.5 KB EPROM (OTP) | 4 KB Flash | 8 KB Flash | 2 KB EPROM | 3.5 KB EPROM | 3.5 KB EPROM |
| Memory Type | EPROM (OTP) | Flash (reprogrammable) | Flash (reprogrammable) | EPROM (OTP) | EPROM (OTP) | EPROM (OTP) |
| Max Clock Speed | 40 MHz | 20 MHz | 32 MHz | 40 MHz | 40 MHz | 4 MHz |
| Integrated ADC | None | 10-bit ADC | 10-bit ADC | None | None | None |
| Analog Comparator | 1 (4 inputs) | 2 comparators | 2 comparators | 1 (4 inputs) | 1 (4 inputs) | 1 (4 inputs) |
| Lifecycle Status | NRND | Active | Active | NRND | NRND | NRND |
주요 차별점
- Faster 40 MHz clock speed grade vs most C62x siblings (vs PIC16C621A-40/P)
- EPROM OTP security for firmware protection (vs PIC16F88-I/P)
- Integrated analog comparator without ADC overhead (vs PIC16F1825-I/P)
설계 노트
Decouple VDD (pin 14) with a 100 nF ceramic capacitor placed within 5 mm of the pin, plus a 10 uF bulk capacitor on the supply rail. The PIC16C622A-40/P draws approximately 5-10 mA at 40 MHz with all I/O active; in sleep mode it drops below 1 uA when the Watchdog Timer is disabled. Ensure the bulk capacitor handles the in-rush current when MCLR is released.
For through-hole PDIP-18, route the oscillator traces (OSC1/OSC2) on the top layer, keep them short (<10 mm), and surround them with a ground pour to minimize EMI pickup. Place the MCLR pull-up resistor (typically 10 kOhm) close to pin 4. If using a crystal, place load capacitors (typically 15-33 pF) immediately at the oscillator pins, with the ground side returning to the same ground reference as VSS (pin 5).
The PIC16C622A-40/P is OTP (One-Time Programmable) in the plastic PDIP package - it CANNOT be re-programmed once written. Verify firmware thoroughly using the JW window-erasable ceramic package variant during development, then commit to OTP plastic for production. Do not exceed the absolute maximum VDD of 7.0 V, and observe the MCLR/VPP voltage limits during in-circuit programming (typically 13 V for high-voltage programming).
규정 준수 정보
RoHS/REACH status unknown - EPROM PDIP parts are often non-RoHS due to the lead in the through-hole pin finish. AEC-Q100 not qualified (commercial 0C to +70C grade only); choose industrial or PIC16F automotive equivalents for vehicle applications.
