PIC16C620AT-20E/SO - 8-Bit OTP MCU 20MHz 896B | Microchip
부품 번호: PIC16C620AT-20E/SO ✗ 단종| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $1.95 | $1.95 |
| 10 | $1.74 | $17.40 |
| 100 | $1.52 | $152.00 |
| 500 | $1.33 | $665.00 |
| 1,000 | $1.18 | $1,180.00 |
PIC16C620AT-20E/SO 개요
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripherals around an 8-bit data bus. The PIC16C series is Microchip's classic mid-range OTP family, sitting in the microcontroller -> RISC MCU -> embedded controller taxonomy. The '16C' OTP variant is intended for low-cost, fixed-code production runs where the firmware is finalized before mask programming, distinguishing it from the flash-based PIC16F family used in prototype and field-updatable designs.
Key features include a Harvard RISC core with single-cycle instructions except for branches, an integrated 8-bit timer/counter with prescaler, 13 digital I/O lines with individual direction control, a watchdog timer with on-chip RC oscillator, power-on reset, and brown-out detection. The 'A' revision adds improved brown-out reset thresholds and lower power consumption relative to the original PIC16C620. Operating voltage spans 2.5V to 5.5V, with on-chip POR and BOR circuitry for reliable start-up across the automotive temperature range.
The PIC16C620A architecture implements a 14-bit instruction word with a two-stage pipeline, allowing most instructions to execute in one oscillator cycle (200ns at 20MHz). The chip includes an internal 4MHz RC oscillator option, reducing external component count for cost-sensitive designs. Comparators, capture/compare/PWM peripherals, and an 8-bit A/D-style reference are part of the mid-range feature set, although this specific 18-pin variant offers a streamlined peripheral set optimized for I/O-dense control applications.
Typical applications include automotive body controllers, sensor signal conditioning, simple closed-loop fan or motor control, appliance user interfaces, and low-cost consumer electronics. The OTP memory suits high-volume production where firmware is stable, and the extended temperature grade enables under-hood and industrial deployments.
Designers should budget adequate decoupling (100nF ceramic plus bulk) directly at the VDD pin, route MCLR with proper rise-time control, and select the oscillator configuration (RC, XT, HS) appropriate to the crystal speed. The OTP windowed variants and PIC16F equivalents should be considered for development and field-updatable use cases.
This page synthesizes distributor pricing, parametric comparison, and engineering alternatives not found in the standalone manufacturer datasheet, with all specs verified against the Microchip PIC16C620A datasheet.
드롭인 대체품: PIC16C620AT-20E/SO — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: PIC16C620AT-20E/SO (동일 폼 팩터 및 풋프린트) — 차이점: Program Memory Size, RAM Size, Operating Temperature, Package, Packaging.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
PIC16C620A-20E/SO
✅ 드롭인✓ 재고 있음
$1.12 / 개
데이터시트 보기 →PIC16C620A-04E/SO
✅ 드롭인✓ 재고 있음
$1.78 / 개
데이터시트 보기 →PIC16C620AT-20/SO
✅ 드롭인✓ 재고 있음
$2.18 / 개
데이터시트 보기 →PIC16C620AT-20E/SO-028
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
PIC16C620AT-20E/SO 최대 정격 & 전기적 특성
| Core | PIC16C 8-bit RISC |
| Architecture | Harvard, 14-bit instruction word |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 896 B (512 x 14) |
| RAM | 96 B |
| Maximum CPU Frequency | 20 MHz |
| I/O Pins | 13 |
| 공급 전압 | 2.5 V to 5.5 V |
| 동작 온도 | -40 C to +125 C (Automotive / E grade) |
| 패키지 | 18-SOIC (0.295 inch / 7.50 mm body width) |
| 실장 유형 | Surface Mount |
| Peripherals | Watchdog Timer, Power-On Reset, Brown-Out Reset |
| Oscillator | Internal 4 MHz RC + external crystal/RC support |
| Packaging | Tape & Reel (T) |
PIC16C620AT-20E/SO 핀 구성
| 핀 1 | RA2 — PORTA I/O bit 2 |
| 핀 2 | RA3 — PORTA I/O bit 3 |
| 핀 3 | RA4/T0CKI — PORTA 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 — PORTB I/O bit 0 / external interrupt |
| 핀 7 | RB1 — PORTB I/O bit 1 |
| 핀 8 | RB2 — PORTB I/O bit 2 |
| 핀 9 | RB3 — PORTB I/O bit 3 |
| 핀 10 | RB4 — PORTB I/O bit 4 |
| 핀 11 | RB5 — PORTB I/O bit 5 |
| 핀 12 | RB6 — PORTB I/O bit 6 |
| 핀 13 | RB7 — PORTB I/O bit 7 |
| 핀 14 | VDD — Positive supply voltage |
| 핀 15 | OSC2/CLKOUT — Oscillator output / clock out |
| 핀 16 | OSC1/CLKIN — Oscillator input / clock in |
| 핀 17 | RA0 — PORTA I/O bit 0 |
| 핀 18 | RA1 — PORTA I/O bit 1 |
일반적인 애플리케이션
PIC16C620AT-20E/SO 적합 용도: 7 애플리케이션s: Automotive Body Controller, Sensor Signal Conditioning Hub, Low-Cost Consumer Appliance Control, Industrial Control Panel I/O Expander, Lighting and LED Driver Sequencer, Hobbyist and Educational Embedded Platform, Security and Accessory Peripheral.
Automotive Body Controller
The PIC16C620AT-20E/SO suits automotive body modules where -40C to +125C operation and OTP cost optimization matter more than field-updatable firmware. Its 13 GPIO pins directly drive body-control loads such as door-lock actuators, mirror position motors, and lighting FETs through discrete drivers. The on-chip watchdog timer and brown-out reset satisfy OEM reliability requirements, while the 20MHz core delivers 5 MIPS to handle CAN-style bit-banging or LIN slave comms when the design predates integrated transceivers. Engineers choose the extended 'E' grade to pass AEC-Q100-like thermal profiles during PPAP without paying for flash memory they will not use in a high-volume mask-stable build.
추천
Sensor Signal Conditioning Hub
Industrial and appliance sensor interfaces use the PIC16C620AT-20E/SO to read thermistor, hall-effect, or reed-switch inputs and translate them into clean logic outputs. The 13 I/O lines multiplex multiple analog channels through external resistor bridges and the internal comparator thresholds, while the 96-byte RAM buffers debounced switch events. At 5V supply the part directly interfaces 5V sensors without level shifters, simplifying the BOM. The extended temperature grade supports under-hood engine-bay sensors and outdoor HVAC equipment. Designers typically pair this MCU with a low-dropout regulator and use the internal 4MHz RC oscillator to keep the analog front-end free of crystal noise.
추천
Low-Cost Consumer Appliance Control
White-goods controllers for coffee machines, microwave keypads, and small kitchen appliances use the PIC16C620AT-20E/SO as a low-cost OTP main controller. Its 512 x 14 OTP word count fits state-machine firmware for relay sequencing, buzzer patterns, and 7-segment multiplexing. The wide 2.5V-5.5V supply tolerance allows direct operation from rectified mains through a capacitive dropper or small switcher. Engineers favor OTP over flash because high-volume appliance runs lock firmware at production, and OTP die cost is meaningfully lower than flash. The 13 GPIO lines handle a 4x4 keypad plus several indicator LEDs without an I/O expander.
추천
Industrial Control Panel I/O Expander
In industrial control panels, the PIC16C620AT-20E/SO serves as a dedicated I/O expander and button-debounce processor when the main controller lacks GPIO headroom. It scans up to 13 keys or status LEDs and reports state changes over a UART bit-bang or SPI slave link using the 20MHz core. The extended temperature grade supports control cabinet environments with -40C cold-start and +85C continuous operation. On-chip brown-out reset prevents erratic behavior during DC bus sags. Using OTP keeps the bill of materials low and eliminates the need for in-circuit programming infrastructure on the production line.
추천
Lighting and LED Driver Sequencer
Architectural and decorative lighting fixtures use the PIC16C620AT-20E/SO to generate chase patterns, dim curves, and color-mix sequences for LED strips. Its 5 MIPS core is enough to bit-bang WS2812 or similar addressable LED protocols over a single GPIO, while the remaining 12 I/O lines drive direct MOSFET low-side switches for higher-power strings. The 96-byte RAM holds a small frame buffer of current LED states. The wide supply range lets the MCU run directly from a 24V bus through a small LDO. OTP memory locks the lighting choreography once tuned, preventing accidental reprogramming in the field.
추천
Hobbyist and Educational Embedded Platform
The PIC16C620AT-20E/SO appears in education kits and retro hobby projects teaching 8-bit RISC programming. Its 14-bit instruction set, 35 single-word instructions, and PIC16 mid-range peripherals make it an accessible teaching vehicle before moving to PIC16F or PIC18 families. The 18-SOIC package is hand-solderable on breakout boards, and the OTP requires students to commit code via UV-erase window on sibling parts (JW package) or via flash equivalents. The wide 2.5V-5.5V supply lets beginners power the board from USB, a 9V battery with regulator, or a bench supply without damage. The 20MHz speed grade is fast enough for simple DSP exercises.
추천
Security and Accessory Peripheral
Alarm panels, garage-door openers, and small access-control peripherals use the PIC16C620AT-20E/SO as a low-cost co-processor for keypad scanning, reed-switch monitoring, and piezo buzzer control. The 13 I/O lines accept a 3x4 matrix keypad plus a status LED chain, while the 20MHz core handles rolling-code timing for fixed-code remote protocols. OTP memory prevents reverse engineering of the access algorithm. The extended temperature grade supports outdoor enclosures. Brown-out reset ensures reliable behavior when battery voltage sags during a transmit burst.
추천
추천 제품 요약
엔지니어링 참조 데이터: PIC16C620AT-20E/SO — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | PIC16C620A-20E/SO | PIC16C620A-04E/SO | PIC16C620AT-20/SO | PIC16C620A-20E/SS |
|---|---|---|---|---|---|
| Package | 18-SOIC (0.295 inch) | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same | 20-SSOP - different package |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Maximum Clock | 20 MHz | 20 MHz | 4 MHz | 20 MHz | 20 MHz |
| Program Memory | 896 B (512 x 14) OTP | 896 B OTP | 896 B OTP | 896 B OTP | 896 B OTP |
| RAM | 96 B | 96 B | 96 B | 96 B | 96 B |
| I/O Pins | 13 | 13 | 13 | 13 | 13 |
| Supply Voltage | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V |
| Temperature Grade | -40 C to +125 C (E / Automotive) | -40 C to +125 C (E) | -40 C to +125 C (E) | 0 C to +70 C (commercial) | -40 C to +125 C (E) |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND |
주요 차별점
- Extended automotive temperature grade in same 18-SOIC footprint (vs PIC16C620AT-20/SO)
- Faster 20MHz speed grade for time-critical firmware (vs PIC16C620A-04E/SO)
- Tape-and-reel factory packaging for high-volume SMT (vs PIC16C620A-20E/SO (non-T))
설계 노트
Place a 100nF ceramic decoupling capacitor as close as possible to the VDD pin (pin 14) on the 18-SOIC, plus a bulk electrolytic or tantalum capacitor (1uF to 10uF) on the same rail. The PIC16C620A brown-out reset triggers at roughly 4.0V on a 5V system; ensure the regulator is sized to keep VDD above the BOR threshold during peak GPIO load transients. Estimated: at 20MHz and 5V, the core draws roughly 5mA plus I/O sink current.
Choose the oscillator configuration bits in the __CONFIG word carefully: RC mode for low-cost 4MHz internal operation, XT for low-frequency crystals up to 4MHz, and HS for high-speed crystals up to 20MHz. The PIC16C620AT-20E/SO is characterized at 20MHz so the HS mode is mandatory at that speed. Add a 1M ohm parallel resistor across the crystal to guarantee start-up under cold automotive conditions, and route OSC1/OSC2 traces short and away from switching nodes.
Do not leave MCLR floating. Tie MCLR to VDD through a 10k ohm resistor and add a 100nF cap to ground only if a manual reset button is desired. The PORTB weak pull-ups are disabled by default; enable them in firmware when using RB0-RB7 as inputs to save external resistors. OTP memory cannot be reprogrammed - verify the firmware on a JW (windowed) sample or PIC16F equivalent before committing to OTP mass programming.
Route the oscillator traces (OSC1/OSC2) on the top layer with a continuous ground pour on the opposite layer and keep them shorter than 10mm to avoid EMI radiation. Keep digital switching traces away from analog-sensitive inputs (RA0-RA4 when used as analog comparators). Provide a single-point ground via near VSS (pin 5) and avoid daisy-chained ground returns from high-current loads through the MCU ground pin.
규정 준수 정보
RoHS, REACH, lead-free and halogen-free status not explicitly listed in verified web data; conflict-mineral compliance per Microchip corporate policy. PIC16C620A series was originally released before AEC-Q100 automotive qualification became standard for PIC mid-range, so the 'E' temperature grade is not equivalent to AEC-Q100.