PIC16F627A-E/P - 8-bit Flash MCU, 20MHz, 1.75KB | Microchip
MPN: PIC16F627A-E/P ✓ Hoạt độngPIC16F627A-E/P Tóm tắt
What is an 8-bit microcontroller? An 8-bit microcontroller (MCU) is a single-chip computer with an 8-bit data bus architecture that integrates a CPU, non-volatile program memory, volatile data memory, and peripherals on one die. The PIC16F627A belongs to the PIC® 16F family of mid-range microcontrollers, positioned in Microchip's product hierarchy as: PIC® 16F family -> mid-range 8-bit MCU -> microcontroller -> embedded controller -> semiconductor IC. These devices typically serve applications requiring deterministic real-time response, low power consumption, and ease of programming through a RISC instruction set.
Key features include a 4 MHz internal oscillator, USART for serial communication, capture/compare/PWM module, two analog comparators with a programmable voltage reference, and a 35-instruction RISC architecture that executes most instructions in 200 ns at 20 MHz. The device operates from 4.5V to 5.5V across the -40C to +125C extended industrial temperature range, and is upwards compatible with the PIC16F627, PIC16C62XA, PIC16C5X, and PIC12CXXX device families for design reuse and migration.
The PIC16F627A-E/P uses Harvard architecture with separate program and data buses, allowing instruction fetch and operand access to occur in the same cycle. Its Flash program memory supports in-circuit serial programming (ICSP), enabling firmware updates without removing the device from the PCB, which is critical for field-deployable and remote-sensor applications.
Typical applications include automotive body and interior modules, white goods and home appliances, industrial sensor interfaces, remote control transmitters, and low-end consumer electronics. The combination of analog comparators, PWM, and USART on a single 18-pin device allows direct interfacing to sensors, motor drivers, and communication buses without external glue logic.
When designing with this device, ensure your reset circuit uses the recommended 10 kohm pull-up on MCLR/VPP for proper in-circuit serial programming. Brown-out reset configuration should be matched to your supply rail tolerances to avoid spurious resets during motor or relay switching events. This page synthesizes distributor pricing, same-family alternatives, and practical design notes not found in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho PIC16F627A-E/P — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC16F627A-E/P (cùng hình factor và footprint) — khác nhau ở Operating Temperature, Package, Core Architecture, Internal Oscillator, RoHS Status.
PIC16F627A-I/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F628A-E/P
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F648A-E/P
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F627-04E/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F627-20E/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F616-E/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F627A-E/P Tỷ lệ tối đa & tính chất điện
| Core Architecture | 8-bit PIC mid-range RISC |
| Program Memory Type | Flash |
| Program Memory Size | 1.75 KB (1K x 14 words) |
| Data RAM | 224 bytes |
| Data EEPROM | 128 bytes |
| Maximum CPU Speed | 20 MHz (200 ns instruction cycle) |
| Điện áp cung cấp | 4.5 V to 5.5 V |
| I/O Pins | 16 |
| Internal Oscillator | 4 MHz |
| Hộp | 18-pin PDIP (P) |
| Nhiệt độ hoạt động | -40C to +125C (Extended) |
| Instruction Set | 35 single-word instructions |
| Communication | USART |
| PWM Modules | 1 (Capture/Compare/PWM) |
| Comparators | 2 with programmable voltage reference |
| Kiểu lắp đặt | Through-Hole |
| Lead-Free / RoHS | Lead-Free (per DigiKey listing) |
| Cấp MSL | 1 (unlimited floor life for PDIP) |
Cấu hình chân PIC16F627A-E/P
| Chân 1 | MCLR/VPP — Master Clear (reset) input / programming voltage |
| Chân 2 | RA0/AN0 — Port A bit 0 / analog input 0 |
| Chân 3 | RA1/AN1 — Port A bit 1 / analog input 1 |
| Chân 4 | RA2/AN2/VREF — Port A bit 2 / analog input 2 / voltage reference |
| Chân 5 | RA3/AN3/C1OUT — Port A bit 3 / analog input 3 / comparator 1 output |
| Chân 6 | RA4/T0CKI/C2OUT — Port A bit 4 / Timer0 clock / comparator 2 output |
| Chân 7 | RA5/AN4/SS/HLVDIN — Port A bit 5 / analog input 4 / slave select / high-low voltage detect |
| Chân 8 | VSS — Ground |
| Chân 9 | OSC1/CLKIN — Oscillator crystal input / external clock |
| Chân 10 | OSC2/CLKOUT — Oscillator crystal output / clock out |
| Chân 11 | RC0/T1OSO/T1CKI — Port C bit 0 / Timer1 oscillator output / Timer1 clock |
| Chân 12 | RC1/CCP2 — Port C bit 1 / Capture/Compare/PWM 2 |
| Chân 13 | RC2/CCP1 — Port C bit 2 / Capture/Compare/PWM 1 |
| Chân 14 | RC3 — Port C bit 3 |
| Chân 15 | RC4 — Port C bit 4 |
| Chân 16 | RC5 — Port C bit 5 |
| Chân 17 | RC6/TX/CK — Port C bit 6 / USART TX / USART clock |
| Chân 18 | RC7/RX/DT — Port C bit 7 / USART RX / USART data |
Ứng dụng tiêu biểu
PIC16F627A-E/P phù hợp cho 6 Áp dụngs: Automotive Body and Interior Modules, Home Appliance and White Goods Control, Industrial Sensor Interfaces and Data Loggers, Remote Control and RF Transmitter Nodes, Low-End Consumer Electronics, Power Supply Auxiliary Controllers.
Automotive Body and Interior Modules
The PIC16F627A-E/P is well suited for automotive body controllers and interior modules because its -40C to +125C extended temperature range and 5V supply tolerance match the harsh electrical environment of 12V automotive rails. The integrated USART enables LIN bus or serial diagnostics, while the two analog comparators allow direct interface to current-sense resistors for lamp-failure detection. Its Flash-based program memory supports in-circuit serial programming for end-of-line firmware customization at the OEM, while the 1.75 KB Flash size is sufficient for typical body-module logic such as seat-controller, mirror-controller, or RKE-receiver firmware.
Được đề xuất
Home Appliance and White Goods Control
White-goods designs such as washing machines, dishwashers, and microwave-oven control boards benefit from the PIC16F627A-E/P's capture/compare/PWM module for driving triac-controlled AC loads. The internal 4 MHz oscillator eliminates the external crystal, reducing BOM cost for high-volume appliance manufacturing. Two analog comparators with programmable voltage reference allow direct sensing of NTC thermistors for temperature regulation, while the USART supports touch-button panel communication. Its 35-instruction RISC architecture simplifies appliance firmware development and shortens time-to-market for consumer-grade white goods.
Được đề xuất
Industrial Sensor Interfaces and Data Loggers
The PIC16F627A-E/P serves industrial 4-20 mA sensor transmitters and standalone data loggers because its 128-byte EEPROM provides non-volatile calibration and event storage without external memory. The two analog comparators can form a sigma-delta ADC topology for low-cost precision measurements, while the programmable voltage reference simplifies ratiometric sensor excitation. Its 5V supply tolerance matches 24V industrial bus rails after regulation. The 16 I/O pins are sufficient for multiplexed sensor channels, and the Flash-based memory allows field calibration updates without hardware rework.
Được đề xuất
Remote Control and RF Transmitter Nodes
Battery-powered remote controls and RF transmitter nodes benefit from the PIC16F627A-E/P's low-cost architecture and ICSP-programmable Flash for code-base reuse across product variants. Its PWM module generates IR carrier frequencies directly, while the USART supports UART-driven sub-GHz radio modules such as the Microchip MRF89XA. The internal 4 MHz oscillator and 5V operation simplify RF front-end bias design. Although the PIC16F627A lacks true low-power sleep modes of newer XLP parts, its simplicity and 35-instruction set enable very compact remote-control firmware under 1.7 KB Flash.
Được đề xuất
Low-End Consumer Electronics
Toys, educational kits, hobby controllers, and small consumer gadgets use the PIC16F627A-E/P because its sub-$3 price at qty 100 and easy-to-learn 35-instruction RISC architecture keep both BOM cost and developer ramp-up time low. The PWM module drives LEDs, buzzers, and small DC motors directly without external drivers, and 16 I/O are sufficient for keypad scanning and seven-segment display multiplexing. The PICkit programmer and MPLAB X IDE ecosystem provide free tools, and 18-pin PDIP through-hole packaging simplifies breadboarding and rework for hobby projects.
Được đề xuất
Power Supply Auxiliary Controllers
Auxiliary housekeeping controllers in switch-mode power supplies use the PIC16F627A-E/P for fan-speed PWM control, temperature-based derating, and front-panel LED status indication. Its two analog comparators monitor current-sense and over-temperature signals directly, while the USART communicates with the main DSP controller for telemetry and remote shutdown. The 5V supply matches standard aux-rail voltages in telecom and server SMPS designs. With 1.75 KB of Flash, the device fits typical supervisor firmware including fault logging into its 128-byte EEPROM.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16F627A-E/P — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC16F627A-I/P | PIC16F628A-E/P | PIC16F648A-E/P | PIC16F627-04E/P | PIC16F627-20E/P | PIC16F616-E/P |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | PDIP-18 | PDIP-18 (same) | PDIP-18 (same) | PDIP-18 (same) | PDIP-18 (same) | PDIP-18 (same) | PDIP-18 (same) |
| Flash Program Memory | 1.75 KB | 1.75 KB | 2 KB | 4 KB | 1.75 KB | 1.75 KB | 3.5 KB |
| Data RAM | 224 B | 224 B | 224 B | 256 B | 224 B | 224 B | 128 B |
| Maximum Clock | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 4 MHz | 20 MHz | 20 MHz |
| Supply Voltage | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 2.5 V to 5.5 V |
| Operating Temperature | -40C to +125C | -40C to +85C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C |
| USART | Yes | Yes | Yes | Yes | Yes | Yes | No (AUSART only) |
Bảo phân biệt quan trọng
- Extended -40C to +125C temperature grade in standard 18-pin PDIP (vsPIC16F627A-I/P)
- Smaller Flash vs the 628A and 648A family members for the same package (vsPIC16F628A-E/P and PIC16F648A-E/P)
- 5V-only operation (no need for 3.3V LDO), simpler BOM (vsPIC16F616-E/P (newer low-voltage XLP variant))
Ghi chú thiết kế
The PIC16F627A-E/P is a 5V-only device (4.5 V to 5.5 V). Place a 100 nF ceramic decoupling capacitor within 5 mm of the VDD pin and a bulk electrolytic (>=10 uF) on the same rail. Brown-out reset should be configured for the application's minimum tolerated VDD; leaving BOR disabled can allow operation at lower voltages and risk Flash corruption. The MCLR pin requires a 10 kohm pull-up to VDD for normal operation and ICSP programming.
Watch the configuration bits carefully: the oscillator selection (HS/RC/XT/LP), watchdog enable, code-protect, and LVP must be set correctly before first programming. Enabling low-voltage programming (LVP) without the proper RB5/PGM pull-down circuit will hold the device in reset. Note that the PIC16F627A's I/O ports are multiplexed; for example RC6/RC7 double as USART TX/RX and digital I/O. Failing to clear the corresponding TRISC bits disables UART output.
Place the decoupling capacitor and reset pull-up immediately adjacent to their respective pins. If an external crystal is used, route OSC1/OSC2 traces short and guard them with a ground ring to avoid coupling digital switching noise into the oscillator. The 18-pin PDIP is through-hole and benefits from generous pad spacing; however, keep the device within 25 mm of the ICSP header to ensure reliable programming.
Thông tin tuân thủ
Lead-free per Microchip product page and DigiKey listing. RoHS compliance confirmed by manufacturer part marking. AEC-Q100 qualification is not explicitly claimed by Microchip for this family - select AEC-Q100 qualified PICs separately for automotive functional-safety designs.
