PIC16LF627T-04I/SS - 4MHz PIC16 8-bit MCU, 1.75KB Flash | Microchip
MPN: PIC16LF627T-04I/SS ✓ Hoạt độngPIC16LF627T-04I/SS Tóm tắt
What is an 8-bit Flash microcontroller? An 8-bit Flash microcontroller is a small, self-contained computer-on-a-chip that integrates a CPU, non-volatile Flash program memory, volatile SRAM, and peripherals such as timers, comparators, and I/O. Within the broader taxonomy, it sits under microcontroller -> embedded controller -> semiconductor IC. Flash-based MCUs dominate low-power and cost-sensitive designs because they support in-circuit re-programming without an external ROM, and the 8-bit class remains popular where deterministic interrupt response and code density matter more than raw throughput.
Key features of the PIC16LF627T-04I/SS include a Harvard RISC architecture with only 35 single-cycle instructions, 16 bidirectional digital I/O pins with high-current sink/source for direct LED drive, two analog comparators with programmable on-chip voltage reference, a 16-bit timer/counter (TMR1) plus an 8-bit timer (TMR0), a Watchdog Timer with its own on-chip RC oscillator, Power-on Reset, Brown-out Detect, and programmable weak pull-ups on PORTB. The integrated USART supports RS-232/RS-485 communication without an external transceiver for short-run links.
Architecturally, the device uses a 14-bit instruction word with an 8-bit data path and a separate program/data bus, eliminating the Von Neumann bottleneck. The Flash program memory supports up to 100K erase/write cycles and retains data for more than 40 years, enabling field-upgradable firmware. The CMOS process combined with nanoWatt-style power management delivers typical active current below 2 mA at 4 MHz, supporting portable and remote applications.
Typical applications include industrial control logic, sensor signal conditioning, appliance front-panel controllers, automotive interior accessories (non-safety), battery-powered instrument front-ends, and remote sensor nodes. The integrated comparators make it a strong fit for threshold detectors and analog-front-end triggers.
Designers should note that the SSOP-20 footprint requires careful thermal relief on the PCB and that decoupling capacitors (0.1 uF plus 10 uF bulk) must be placed within 5 mm of VDD/VSS to ensure stable Brown-out Detect behavior across load transients.
This page combines distributor inventory and pricing, drop-in cross-reference alternatives, and engineering design notes beyond the manufacturer datasheet summary.
Bộ thay thế dễ dàng lắp đặt cho PIC16LF627T-04I/SS — 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 PIC16LF627T-04I/SS (cùng hình factor và footprint) — khác nhau ở Package, Timers, Core Architecture, Mounting Type, Communication.
PIC16LF627AT-I/SS
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LF627-04I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF627A-I/P
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16LF627T-04/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF627-04I/SO
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16LF627-04I/P
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16LF627T-04I/SS Tỷ lệ tối đa & tính chất điện
| Core Architecture | 8-bit PIC16 RISC (Harvard) |
| Program Memory | 1.75 KB (1K x 14) Flash |
| Data Memory (SRAM) | 224 bytes |
| EEPROM | 128 bytes |
| Tần số xung maksimum | 4 MHz (04 speed grade) |
| Instruction Set | 35 single-cycle instructions |
| Operating Voltage Range | 2.0 V to 5.5 V (supports 2.5/3.3/5 V rails) |
| I/O Pins | 16 bidirectional |
| Analog Comparators | 2 with programmable VREF |
| Timers | TMR0 (8-bit), TMR1 (16-bit), TMR2 (8-bit PWM) |
| Communication | AUSART (RS-232/RS-485) |
| Hộp | 20-pin SSOP (0.65 mm pitch, 5.30 mm body) |
| Nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 1 |
| Lead Free / RoHS | Yes / Compliant |
Cấu hình chân PIC16LF627T-04I/SS
| Chân 1 | RA5/AN4/T1CKI — Bidirectional I/O, analog channel 4, or Timer1 clock input |
| Chân 2 | RA4/AN3/T0CKI — Bidirectional I/O, analog channel 3, or Timer0 clock input |
| Chân 3 | RA3/AN2/VREF+ — Bidirectional I/O, analog channel 2, or positive comparator VREF |
| Chân 4 | RA2/AN1/VREF- — Bidirectional I/O, analog channel 1, or negative comparator VREF |
| Chân 5 | RA1/AN1/CIN-/CVREF — Bidirectional I/O, comparator 1 negative input, or VREF output |
| Chân 6 | RA0/AN0/CIN+ — Bidirectional I/O, analog channel 0, comparator 1 positive input |
| Chân 7 | OSC1/CLKIN — Crystal oscillator input or external clock input |
| Chân 8 | OSC2/CLKOUT — Crystal oscillator output or clock output |
| Chân 9 | VSS — Ground reference |
| Chân 10 | T0CKI/INT/RB0 — PORTB bit 0, external interrupt, or Timer0 clock |
| Chân 11 | RB1/RX/DT — PORTB bit 1, USART RX or data line |
| Chân 12 | RB2/TX/CK — PORTB bit 2, USART TX or clock line |
| Chân 13 | RB3/CCP1 — PORTB bit 3, Capture/Compare/PWM 1 |
| Chân 14 | RB4 — PORTB bit 4 with interrupt-on-change |
| Chân 15 | RB5 — PORTB bit 5 with interrupt-on-change |
| Chân 16 | RB6/PGC — PORTB bit 6, in-circuit debugger clock |
| Chân 17 | RB7/PGD — PORTB bit 7, in-circuit debugger data |
| Chân 18 | VDD — Positive supply (2.0V to 5.5V) |
| Chân 19 | VSS — Ground reference |
| Chân 20 | MCLR/VPP — Master Clear reset (active low) or programming voltage input |
Ứng dụng tiêu biểu
PIC16LF627T-04I/SS phù hợp cho 6 Áp dụngs: Industrial Sensor Threshold Detection, Battery-Powered Remote Sensor Node, Appliance Front-Panel Controller, Automotive Interior Accessory Module, RS-485 Sensor Network Node, LED Lighting Controller.
Industrial Sensor Threshold Detection
The PIC16LF627T-04I/SS fits industrial sensor threshold detection because its two on-chip analog comparators with programmable VREF allow direct comparison of analog signals against a software-set reference without external op-amps. Its 16-bit TMR1 timer captures comparator events with 1 us resolution at 4 MHz, and the industrial -40C to +85C range survives factory-floor temperature swings. The 2.0V to 5.5V supply range lets the part run directly from a 3.3V sensor rail. With 16 mA sink/source per I/O, it can drive indicator LEDs or relay coils directly, simplifying the BOM. Typical design places the sensor output on RA0/RA1 (CIN+/CIN-) and triggers a firmware state change on comparator interrupt, enabling zero-latency alarm response. Compared with discrete op-amp + timer designs, this PIC integrates the entire front-end into one 20-pin SSOP, reducing PCB area by up to 60%.
Được đề xuất
Battery-Powered Remote Sensor Node
The PIC16LF627T-04I/SS suits battery-powered remote sensor nodes because its LF silicon is characterized down to 2.0V, allowing direct operation from two AA alkaline cells across their full discharge curve (3.0V to 2.0V). The 4 MHz clock supports moderate sampling rates while keeping active current under 2 mA typical. Sleep mode with Watchdog Timer wake-up extends battery life to multiple years in duty-cycled applications. The integrated USART interfaces with sub-GHz radios (Si4432, RFM69) for wireless telemetry. The 20-pin SSOP package supports compact PCB designs inside sealed enclosures. Designers should add a 0.1 uF decoupling capacitor near VDD and route the MCLR pin through a 10 kohm pull-up for reliable reset behavior during brown-out events.
Được đề xuất
Appliance Front-Panel Controller
The PIC16LF627T-04I/SS integrates well into appliance front-panel controllers because its 16 high-current I/O pins directly sink LED segments without driver transistors, reducing BOM cost. The 1.75 KB Flash accommodates state-machine firmware for washers, ovens, or HVAC controllers, while 128 bytes EEPROM retains user settings across power cycles. The two analog comparators monitor AC-line zero-crossing signals for TRIAC dimming or motor speed control. The 4 MHz instruction rate delivers 1 us resolution for timing-critical tasks like triac phase-angle firing. Industrial temperature rating suits laundry or kitchen environments, and SSOP-20 reflows cleanly on lead-free profiles. Compared with discrete logic ICs, this PIC eliminates 3-5 chips per panel.
Được đề xuất
Automotive Interior Accessory Module
The PIC16LF627T-04I/SS works for non-safety automotive interior accessories such as ambient lighting controllers, seat-position memory, or aftermarket gauge drivers because its industrial temperature rating handles cabin extremes and its wide supply tolerance survives 12V battery transients with proper filtering. Note: this part is NOT AEC-Q100 qualified - for safety-critical ECUs, designers must use the PIC16F627A-I/SS automotive-grade family. The PIC16LF627's USART drives LIN-bus slave nodes when paired with a LIN transceiver like MCP2021. The integrated comparators detect switch closures without external circuitry. Two AA-cell or 12V-to-5V supply rails are both supported by the wide voltage range.
Được đề xuất
RS-485 Sensor Network Node
The PIC16LF627T-04I/SS serves as an RS-485 sensor network node because its integrated AUSART implements RS-485 framing with a single external transceiver like MAX485 or LTC485. The 4 MHz core supports polled protocols (Modbus RTU) at 9600 to 38400 baud with low interrupt overhead. The 16 I/O pins connect to multiple sensors or actuator outputs in a single node. Industrial temperature rating fits outdoor or factory deployments. Compared with discrete UART chips, this part adds Flash-based firmware customization per node, allowing unique calibration constants and node IDs. The 20-pin SSOP footprint fits inside standard 35 mm DIN-rail enclosures.
Được đề xuất
LED Lighting Controller
The PIC16LF627T-04I/SS fits LED lighting controllers because its 16 I/O pins each sink 25 mA - enough for direct LED matrix driving without driver ICs. The TMR2 PWM module generates 8-bit PWM for dimming, and the analog comparators sense ambient light or current feedback. The wide 2.0V-5.5V supply runs from a single 3.3V or 5V rail, or even from a small lithium cell. SSOP-20 reflows cleanly in automated assembly. Compared with dedicated LED drivers, this PIC adds intelligence (fade patterns, color sequencing, response to button events) at lower cost for under-16-LED installations like accent strips or signage.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LF627T-04I/SS — 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 | PIC16LF627AT-I/SS | PIC16LF627-04I/SS | PIC16LF627A-I/P | PIC16LF627T-04/SO | PIC16LF627-04I/SO | PIC16LF627-04I/P |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-pin SSOP (5.30 mm) | 20-pin SSOP - same | 20-pin SSOP - same | 20-pin PDIP - different footprint | 20-pin SOIC - different footprint | 20-pin SOIC - different footprint | 20-pin PDIP - different footprint |
| Core Architecture | 8-bit PIC16 RISC | 8-bit PIC16 RISC | 8-bit PIC16 RISC | 8-bit PIC16 RISC | 8-bit PIC16 RISC | 8-bit PIC16 RISC | 8-bit PIC16 RISC |
| Max Clock Frequency | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz |
| Flash Memory | 1.75 KB | 1.75 KB | 1.75 KB | 1.75 KB | 1.75 KB | 1.75 KB | 1.75 KB |
| SRAM | 224 bytes | 224 bytes | 224 bytes | 224 bytes | 224 bytes | 224 bytes | 224 bytes |
| Operating Voltage | 2.0V to 5.5V | 2.0V to 5.5V | 2.0V to 5.5V | 2.0V to 5.5V | 2.0V to 5.5V | 2.0V to 5.5V | 2.0V to 5.5V |
| Temperature Range | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| I/O Pins | 16 | 16 | 16 | 16 | 16 | 16 | 16 |
Bảo phân biệt quan trọng
- Tape-and-reel packaging for high-volume SMD assembly (vsPIC16LF627-04I/SS)
- 'A' silicon revision with improved BOR and lower power (vsPIC16LF627-04I/SS)
- Through-hole PDIP option for prototyping and breadboarding (vsPIC16LF627T-04/SO)
Ghi chú thiết kế
Decouple VDD (pin 18) with a 0.1 uF ceramic capacitor placed within 5 mm of the pin, plus a 10 uF bulk tantalum or aluminum polymer capacitor on the same trace. The PIC16LF627T-04I/SS contains an internal Brown-out Detect (BOD) that may mis-trigger if VDD droops below 2.0V during load transients. Add a ferrite bead or small inductor (10 uH) on VDD when switching loads share the rail. Per Microchip design guidance, hold MCLR high through a 10 kohm pull-up to VDD to ensure clean reset.
Route the crystal traces (OSC1/OSC2, pins 7 and 8) on the top layer with a grounded guard ring, and keep them shorter than 10 mm to minimize stray capacitance. SSOP-20 thermal pad is not present, so a 4 mm x 4 mm copper pour on pin 9 (VSS) aids heat dissipation at 4 MHz full-load operation. Place C1/C2 crystal loading capacitors within 3 mm of the oscillator pins. Avoid routing signal traces under the crystal to prevent coupling.
Do not assume the LF silicon runs at 5V F-only specifications - the PIC16F627 datasheet minimum is 3.0V, but the LF version (PIC16LF627T) is characterized down to 2.0V, which is the entire reason for the LF suffix. Programming voltage on MCLR/VPP must reach 13V during ICSP programming - ensure your ICSP header does not have series resistance that drops the voltage below VPP_min. The TMR1 external clock (T1CKI/RA5) can only be sourced when the timer is configured for external clock mode in T1CON; do not leave RA5 floating if T1CKI is enabled.
Thông tin tuân thủ
RoHS and lead-free per Microchip product page. Not AEC-Q100 qualified - this part is industrial grade only and must not be used in automotive safety-critical applications; for AEC-Q100 qualified alternatives, contact Microchip for PIC16F627A-E/SS automotive family.
