PIC16F627T-20E/SO - 8-Bit 20MHz PIC MCU, 1.75KB Flash | Microchip
MPN: PIC16F627T-20E/SO ✓ Hoạt độngPIC16F627T-20E/SO Tóm tắt
What is a PIC microcontroller? A PIC (Peripheral Interface Controller) microcontroller is a compact, self-contained computer-on-a-chip built around a Harvard RISC architecture, where program and data buses are physically separated to allow simultaneous instruction fetch and operand read. Microcontrollers sit at the bottom of the embedded computing hierarchy - they integrate CPU, non-volatile program memory (Flash/ROM), volatile data memory (SRAM), non-volatile data memory (EEPROM), and a fixed set of peripherals into a single IC. They are a category of microcontrollers and a member of the broader embedded processor family.
Key features of the PIC16F627T-20E/SO include 16 bidirectional I/O pins with individually programmable direction, an enhanced Mid-Range 8-bit core with 14-bit instructions, two analog comparators with a programmable on-chip voltage reference (CVREF), a USART module for asynchronous/synchronous serial communication, and a CCP module for capture/compare/PWM. The device also integrates a Brown-out Detector (BOD), Power-on Reset (POR), Power-up Timer (PWRT), Oscillator Start-up Timer (OST) and a Watchdog Timer (WDT) with its own dedicated internal RC oscillator for reliable operation. Programmable weak pull-ups on PORTB and a multiplexed MCLR pin simplify board design.
Architecturally, the PIC16F62X family uses a 14-bit instruction word, an 8-level deep hardware stack, and direct, indirect and relative addressing modes. The device supports INTOSC, EC, RC, HS and XT oscillator modes, giving designers flexibility to trade off cost, EMI and accuracy. The internal 4 MHz and 37 kHz RC oscillators further reduce bill-of-materials cost.
Typical applications include appliance control, security and access systems, remote controls, industrial automation (sensor interfacing, relay drivers), automotive body electronics (comfort, lighting, mirror modules), low-end consumer electronics, and battery-powered instrumentation. The wide operating voltage and integrated analog peripherals make the part especially attractive for cost-sensitive designs that need a small BOM and robust on-chip protection features.
When designing with this part, budget approximately 1.5 V of headroom on the analog comparators and confirm that CCP/USART pin assignments do not collide with the analog comparator inputs. Decouple VDD/VSS with a 100 nF ceramic capacitor placed within 5 mm of the pins.
This page synthesizes distributor pricing, drop-in alternatives and practical design notes that are not present in the raw Microchip datasheet, making it easier to evaluate the part for new designs and second-source decisions.
Bộ thay thế dễ dàng lắp đặt cho PIC16F627T-20E/SO — 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 PIC16F627T-20E/SO (cùng hình factor và footprint) — khác nhau ở Core Architecture, Package, Analog Comparators, Supply Voltage (VDD), I/O Pins.
PIC16F627-20E/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F627T-20/SO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F627T-04E/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F627AT-E/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F627-20/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F628AT-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F627T-20E/SO Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC16F62X Mid-Range 8-bit Harvard RISC |
| Instruction Word Size | 14 bits |
| Max CPU Clock Frequency | 20 MHz |
| Program Memory (Flash) | 1.75 KB (1K x 14) |
| Data SRAM | 224 bytes |
| Data EEPROM | 128 bytes |
| Supply Voltage (VDD) | 4.5 V to 5.5 V (PIC16F62X -20E/-20 spec) |
| I/O Pins | 16 bidirectional (PORTA[5] + PORTB[8] + 3 RA alt) |
| Operating Temperature (Extended) | -40 C to +125 C |
| Hộp | 18-pin SOIC (wide body), tape and reel |
| Kiểu lắp đặt | Surface Mount |
| Analog Comparators | 2 on-chip |
| On-chip Voltage Reference | Programmable CVREF module |
| USART | 1 (AUSART, async/sync) |
| CCP Module | 1 (Capture/Compare/PWM) |
| Timers | TMR0, TMR1 (16-bit), TMR2 (8-bit) |
| Internal Oscillator | 4 MHz and 37 kHz selectable |
| Watchdog Timer | Yes, with dedicated internal RC oscillator |
| Brown-out Detect (BOD) | Yes, programmable threshold |
| Power-on Reset / PWRT / OST | Yes / Yes / Yes |
| Interrupt Sources | 10 sources |
| Trạng thái RoHS | Compliant |
| Lead-Free | Yes |
Cấu hình chân PIC16F627T-20E/SO
| Chân 1 | RA2/AN2/CVREF/VREF — Bidirectional I/O / Analog input / CVREF output / external VREF input |
| Chân 2 | RA3/AN3/CMP1 — Bidirectional I/O / Analog input / Comparator 1 output |
| Chân 3 | RA4/AN4/T0CKI/CMP2 — Bidirectional I/O / Analog input / TMR0 clock / Comparator 2 output |
| Chân 4 | RA5/MCLR/VPP — Bidirectional I/O / Master Clear (reset) / programming voltage |
| Chân 5 | VSS — Ground reference |
| Chân 6 | RB0/INT — Bidirectional I/O / External interrupt |
| Chân 7 | RB1/RX/DT — Bidirectional I/O / USART RX / Synchronous data |
| Chân 8 | RB2/TX/CK — Bidirectional I/O / USART TX / Synchronous clock |
| Chân 9 | RB3/CCP1 — Bidirectional I/O / Capture-Compare-PWM channel 1 |
| Chân 10 | RB4/PGM — Bidirectional I/O / Low-voltage programming |
| Chân 11 | RB5 — Bidirectional I/O |
| Chân 12 | RB6/T1CKI/PGC — Bidirectional I/O / TMR1 clock / ICSP clock |
| Chân 13 | RB7/T1OSI/PGD — Bidirectional I/O / TMR1 oscillator input / ICSP data |
| Chân 14 | VDD — Positive supply (4.5 V to 5.5 V) |
| Chân 15 | OSC2/CLKOUT/RA6 — Crystal oscillator output / CLKOUT / GPIO |
| Chân 16 | OSC1/CLKIN/RA7 — Crystal oscillator input / CLKIN / GPIO |
| Chân 17 | RA0/AN0 — Bidirectional I/O / Analog input 0 |
| Chân 18 | RA1/AN1 — Bidirectional I/O / Analog input 1 |
Ứng dụng tiêu biểu
PIC16F627T-20E/SO phù hợp cho 6 Áp dụngs: Appliance Control (Washing Machine / Dishwasher Front Panel), Remote Control and IR Transmitter / Receiver, Security and Access Control Panels, Industrial Sensor Interface Module, Automotive Body Electronics (Non-Safety), Battery-Powered Instrumentation.
Appliance Control (Washing Machine / Dishwasher Front Panel)
The PIC16F627T-20E/SO suits appliance front-panel control where deterministic real-time response, low BOM cost and robust on-chip protection matter. Its 20 MHz core delivers 5 MIPS, which is plenty to scan a key matrix, drive a multiplexed LED or LCD display and run a soft UART to an inverter board. The integrated BOD, POR, PWRT and WDT give the appliance designer clean power-on behavior without external reset supervisors. The 18-SOIC package reflows cleanly on the control PCB, and the -40 C to +125 C Extended grade handles the thermal envelope behind a dishwasher or oven fascia.
Được đề xuất
Remote Control and IR Transmitter / Receiver
For handheld remote controls and IR/RF receivers, the PIC16F627T-20E/SO offers the right balance of small footprint, low power and enough Flash to hold protocol stacks (NEC, RC5, SIRC). The 4 MHz internal INTOSC mode allows battery operation without a crystal, and the 16 I/O pins are sufficient to drive a key matrix and an IR LED via PWM (CCP module). The PIC's low-power Sleep mode plus the WDT keep standby current in the microamp range, which directly translates to longer battery life. This is a classic use case for the PIC16F62X family.
Được đề xuất
Security and Access Control Panels
Security keypads, door controllers and alarm panels benefit from the PIC16F627T-20E/SO's two analog comparators with programmable CVREF, which can directly sense a tamper loop or battery voltage without external op-amps. The 128-byte EEPROM stores user codes, event logs and panel configuration across power cycles, eliminating the need for an external serial EEPROM. The USART supports RS-485 communication to a central panel, while the integrated WDT with its own RC oscillator protects against code lockups - critical for unattended security hardware.
Được đề xuất
Industrial Sensor Interface Module
In industrial 4-20 mA loop sensors, thermocouple amplifiers and bridge sensor readouts, the PIC16F627T-20E/SO can digitize and linearize signals, drive an LED bar graph and communicate over RS-232/RS-485. Its 16-bit instruction-aligned Flash makes fixed-point math simple, and the 20 MHz throughput handles polynomial compensation at sample rates above 1 kHz. The Extended -40 C to +125 C rating covers factory floor environments, while the on-chip BOD protects against brown-out corruption on long analog cables.
Được đề xuất
Automotive Body Electronics (Non-Safety)
For non-safety cabin modules such as seat controllers, mirror adjusters, interior lighting and rain sensors, the PIC16F627T-20E/SO provides an Extended -40 C to +125 C temperature grade, an integrated WDT and adequate Flash for LIN-like soft protocol stacks. Note that this part is not AEC-Q100 qualified, so it is appropriate only where the OEM has explicitly waived the AEC-Q100 requirement. Designers needing AEC-Q100 should move to PIC16F18xxx or dsPIC33 families instead.
Được đề xuất
Battery-Powered Instrumentation
In handheld multimeters, portable test gear and battery-powered medical instruments, the PIC16F627T-20E/SO's selectable 4 MHz / 37 kHz INTOSC, low Sleep current and wide 4.5 V to 5.5 V supply range deliver a strong battery-life design. The two analog comparators can directly sense battery voltage through a resistive divider without waking the CPU, while the CVREF drives a low-drift reference for the A/D. The 1.75 KB Flash accommodates calibration tables in EEPROM, and the 128-byte EEPROM stores user preferences across battery swaps.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16F627T-20E/SO — 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 | PIC16F627-20E/SO | PIC16F627T-20/SO | PIC16F627T-04E/SO | PIC16F627AT-E/SO | PIC16F627-20/SO | PIC16F628AT-I/SO |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 18-SOIC (wide body) | 18-SOIC (wide body) - same | 18-SOIC (wide body) - same | 18-SOIC (wide body) - same | 18-SOIC (wide body) - same | 18-SOIC (wide body) - same | 18-SOIC (wide body) - same |
| Max CPU Clock | 20 MHz | 20 MHz | 20 MHz | 4 MHz | 20 MHz | 20 MHz | 20 MHz |
| Flash Memory | 1.75 KB | 1.75 KB | 1.75 KB | 1.75 KB | 1.75 KB | 1.75 KB | 3.5 KB |
| SRAM | 224 bytes | 224 bytes | 224 bytes | 224 bytes | 224 bytes | 224 bytes | 224 bytes |
| EEPROM | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes |
| Temperature Grade | Extended -40C to +125C | Extended -40C to +125C | Industrial -40C to +85C | Extended -40C to +125C | Extended -40C to +125C | Industrial -40C to +85C | Industrial -40C to +85C |
| Shipping Format | Tape & Reel | Tube | Tape & Reel | Tape & Reel | Tape & Reel | Tube | Tape & Reel |
| Core Variant | PIC16F627 base | PIC16F627 base | PIC16F627 base | PIC16F627 base | PIC16F627 silicon rev A | PIC16F627 base | PIC16F628 silicon rev A |
Bảo phân biệt quan trọng
- Extended temperature grade in tape-and-reel (vsPIC16F627T-20/SO)
- Upgraded silicon revision with improved peripherals (vsPIC16F627AT-E/SO)
- 2x Flash memory at same 18-SOIC footprint (vsPIC16F628AT-I/SO)
Ghi chú thiết kế
Place a 100 nF X7R ceramic decoupling capacitor within 5 mm of the VDD/VSS pins and a bulk 10 uF tantalum or aluminum-polymer capacitor on the same rail. The PIC16F627T-20E/SO draws roughly 2-10 mA active at 20 MHz and below 1 uA in Sleep; a properly sized bulk cap prevents VDD droop when the CCP module or USART activates. If the board uses an external crystal, route oscillator traces short and guard them with a ground ring to minimize EMI coupling into VDD.
The 18-SOIC package has a theta_JA of approximately 100 C/W on a standard 2-layer JEDEC board, so thermal considerations are usually negligible for this MCU. However, in a sealed enclosure with no airflow (e.g., an oven control panel), the Extended -40 C to +125 C temperature grade should still be derated against ambient. Estimate: at 5 mA active and 5 V, the part dissipates 25 mW - far below the 100 mW budget of the SOIC, so no heatsink is needed.
If using ICSP (In-Circuit Serial Programming), keep RB6/PGC and RB7/PGD accessible to the programming header and ensure no low-impedance load holds the lines at static levels during programming. MCLR/VPP must be pulled up to VDD through a 10 kohm resistor and have a dedicated path to the ICSP header. Avoid running high-current switching traces next to the crystal traces; route the crystal pins with short symmetric traces and a grounded guard ring.
Do not confuse the T suffix (Tape-and-Reel) with a functional feature - it is purely a shipping format. A common mistake is selecting PIC16F627T-20E/SO for a low-clock design; the -20E speed grade is mandatory for 20 MHz operation but is electrically identical to the -04E variant at 4 MHz (just more expensive). When migrating to the PIC16F628 family, verify code-size headroom because the 628 has more Flash but the same SRAM/EEPROM; do not assume a drop-in replacement at the source level.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Lead-free SOIC package per the -E suffix. Not AEC-Q100 qualified - use PIC16F18xxx or dsPIC33 for AEC-Q100 designs.
