PIC12F617-I/MF - 8-bit MCU, 3.5KB Flash, 20MHz | Microchip
MPN: PIC12F617-I/MF ✓ Hoạt độngPIC12F617-I/MF Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip computer with an 8-bit data path, typically used for embedded control in cost- and power-sensitive applications. The PIC12F617 belongs to the broader PIC microcontroller family from Microchip, which sits within the hierarchy microcontroller -> embedded processor -> integrated circuit -> semiconductor. Its compact 8-pin DFN footprint and integrated analog peripherals make it a member of the low-pin-count MCU category intended to replace discrete logic and timer circuits in space-constrained designs.
Key features include 4.5V to 5.5V supply operation, six I/O pins with interrupt-on-change capability, hardware PWM with ECCP module, two analog comparators, an internal 8MHz oscillator (calibrated to ±1% over voltage and temperature), and in-circuit serial programming (ICSP) via two pins. The 8-pin DFN package exposes a thermal pad that must be soldered to the PCB ground plane to meet the 31.3 C/W theta-JA rating.
Architecturally, the PIC12F617 uses Microchip's enhanced mid-range 14-bit instruction set, supporting single-cycle instructions except for branches. The 10-bit ADC runs up to 30 channels of input multiplexing on six I/O pins, with conversion speeds near 8 µs typical. Brown-out reset (BOR), power-on reset (POR), and watchdog timer (WDT) provide system-level reliability.
Typical applications include LED lighting controllers, battery chargers, fan/motor PWM drivers, sensor signal conditioning, and consumer appliance control panels. The 8-pin DFN variant specifically targets compact hand-held products where board area is critical and a small exposed-pad footprint aids thermal dissipation.
When designing with this part, note the DFN exposed pad must be soldered to a ground-copper pour of at least 0.25 sq. inch to achieve rated thermal performance. Decoupling should place a 100nF capacitor within 2mm of VDD, and ICSP programming requires MCLR, VPP, and serial data/clock lines reserved in layout.
This page synthesizes distributor pricing, drop-in 8-pin DFN alternatives, and practical PCB-layout notes not consolidated in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC12F617-I/MF — 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 PIC12F617-I/MF (cùng hình factor và footprint) — khác nhau ở Package, Internal Oscillator, Timers, Comparators, Program Memory (Flash).
PIC12F617T-I/MF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC12F617-E/MF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC12F615-I/MD
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC12F615T-I/MF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC12F1572-E/MF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC12F1822-I/MF
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC12F509-I/MC
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC12F510-I/MC
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC12F617-I/MF Tỷ lệ tối đa & tính chất điện
| Core Processor | PIC |
| Core Size | 8-Bit |
| CPU Speed | 20 MHz |
| Program Memory Size | 3.5 KB (2K x 14) Flash |
| RAM Size | 128 B |
| Number of I/O | 6 |
| Supply Voltage Range | 4.5 V to 5.5 V |
| Internal Oscillator | 8 MHz |
| ADC | 10-bit, 4 channels |
| PWM | ECCP, 10-bit resolution |
| Comparators | 2 |
| Hộp | 8-pin DFN (3x3 mm) with exposed pad |
| Nhiệt độ hoạt động | -40 C to +85 C (industrial) |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 1 (unlimited floor life) |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC12F617-I/MF
| Chân 1 | VDD — Positive supply voltage (4.5V to 5.5V) |
| Chân 2 | GP5 — Bidirectional I/O pin 5; analog channel AN3 |
| Chân 3 | GP4 — Bidirectional I/O pin 4; analog channel AN2 |
| Chân 4 | GP3/MCLR/VPP — Bidirectional I/O pin 3, Master Clear reset, programming voltage input |
| Chân 5 | GP2 — Bidirectional I/O pin 2; analog channel AN2/T0CKI/INT |
| Chân 6 | GP1 — Bidirectional I/O pin 1; ICSPCLK; analog channel AN1 |
| Chân 7 | GP0 — Bidirectional I/O pin 0; ICSPDAT; analog channel AN0 |
| Chân 8 | VSS — Ground reference |
Ứng dụng tiêu biểu
PIC12F617-I/MF phù hợp cho 6 Áp dụngs: LED Lighting and Dimmer Controllers, Battery-Powered Sensor Signal Conditioning, Small DC Fan and Brushless-Motor PWM Drivers, Consumer Appliance Control Panels, Industrial Sensor Front-Ends and 4-20 mA Loop Monitors, USB-Powered Smart Indicators and Gadgets.
LED Lighting and Dimmer Controllers
The PIC12F617-I/MF fits LED lighting control with its built-in ECCP 10-bit PWM module and 20MHz CPU clock, which together allow high-resolution brightness and color-temperature dimming without external PWM ICs. Its two analog comparators enable hardware-based zero-cross detection of the AC line for phase-cut dimmer designs. According to the Microchip datasheet, the 4-channel 10-bit ADC reads temperature or ambient-light sensors for closed-loop LED control. The compact 8-pin DFN (3x3mm) footprint fits inside GU10 spot or MR16 form factors. Engineers typically pair the PIC12F617-I/MF with a power MOSFET driver and use ICSP for in-the-field firmware updates via the GP0/GP1 pins.
Được đề xuất
Battery-Powered Sensor Signal Conditioning
The PIC12F617-I/MF suits battery-powered sensor conditioning because of its 128-byte SRAM, internal 8MHz oscillator, and ability to run core peripherals while CPU sleeps. The 10-bit ADC wakes the part on threshold crossings, supporting long battery life in IoT sensor nodes. The DFN-8 package keeps the solution footprint under 10x10 mm, ideal for wearable or remote-sensor PCBs. Per Microchip datasheet 41302G, the BOR and WDT provide reliability against low-voltage brown-out in Li-ion or coin-cell environments. Compared to PIC12F615, the 617's internal oscillator eliminates external crystal cost and PCB area.
Được đề xuất
Small DC Fan and Brushless-Motor PWM Drivers
The PIC12F617-I/MF controls small DC and brushless DC fans using its 10-bit ECCP PWM at up to 20 kHz switching frequencies, plus two comparators for back-EMF sensing. The 6 I/O pins route to driver FET gate control, tachometer feedback, and fault lines. The industrial -40 C to +85 C rating suits PC and appliance fans. According to Microchip documentation, the internal 8 MHz oscillator and 20 MHz CPU core provide enough headroom for closed-loop PID speed control. The DFN-8 (3x3mm) fits on the fan hub PCB.
Được đề xuất
Consumer Appliance Control Panels
The PIC12F617-I/MF drives keypad inputs, status LEDs, and buzzer PWM in appliance control panels using its 4-channel 10-bit ADC for reading potentiometers or NTC temperature sensors. The 128 B SRAM handles short user-interface state machines and timer variables. Its small DFN-8 package fits behind glass-fronted touch panels. Per Microchip datasheet 41302G, BOR and WDT ensure reliable recovery from brown-out events in mains-powered equipment. Use it alongside an I/O expander for larger keypad matrices.
Được đề xuất
Industrial Sensor Front-Ends and 4-20 mA Loop Monitors
The PIC12F617-I/MF interfaces to industrial 4-20 mA current loops by measuring the loop voltage drop with its 10-bit ADC and two analog comparators, providing alert outputs when out-of-range conditions occur. The 4.5-5.5V supply suits 24V loop-powered systems via a local LDO. Industrial -40 C to +85 C rating handles factory-floor environments. The DFN-8 exposed pad provides thermal dissipation when the part is mounted near heat sources. According to Microchip application notes, the internal 8MHz oscillator eliminates precision external crystals.
Được đề xuất
USB-Powered Smart Indicators and Gadgets
The PIC12F617-I/MF powers USB-connected status indicators using its 10-bit ADC to monitor USB VBUS and I/O pins to drive RGB LEDs via software PWM or the ECCP module. The 128-byte SRAM holds USB enumeration descriptors and protocol state. With the DFN-8 (3x3mm) footprint, the entire MCU plus passives fit on a sub-50 mm^2 board. Per the Microchip datasheet, the internal oscillator and ICSP programming keep the BOM small. Pair with a USB-UART bridge for host communication in indicator or programmer accessory designs.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC12F617-I/MF — 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 | PIC12F617T-I/MF | PIC12F617-E/MF | PIC12F615-I/MD | PIC12F1572-E/MF | PIC12F1822-I/MF |
|---|---|---|---|---|---|---|
| Package | 8-pin DFN (3x3 mm) with exposed pad | 8-pin DFN (3x3 mm) - same | 8-pin DFN (3x3 mm) - same | 8-pin DFN (3x3 mm) - same | 8-pin DFN (3x3 mm) - same | 8-pin DFN (3x3 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 32 MHz | 32 MHz |
| Program Memory | 3.5 KB Flash | 3.5 KB Flash | 3.5 KB Flash | 1.75 KB Flash | 3.5 KB Flash | 7 KB Flash |
| RAM | 128 B | 128 B | 128 B | 64 B | 256 B | 128 B |
| ADC | 10-bit, 4 channels | 10-bit, 4 channels | 10-bit, 4 channels | 10-bit, 4 channels | 10-bit, 4 channels | 10-bit, 8 channels |
| Internal Oscillator | 8 MHz | 8 MHz | 8 MHz | None (external required) | 16 MHz (with 4x PLL to 32 MHz) | 32 MHz internal |
| Comparators | 2 | 2 | 2 | 0 | 2 | 2 |
| PWM/ECCP | ECCP, 10-bit | ECCP, 10-bit | ECCP, 10-bit | None | PWM, 10-bit | PWM, 10-bit |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +125 C | -40 C to +85 C | -40 C to +125 C | -40 C to +85 C |
Bảo phân biệt quan trọng
- Integrated 8 MHz internal oscillator eliminates external crystal (vsPIC12F615-I/MD)
- ECCP enhanced PWM module and 2 analog comparators (vsPIC12F615-I/MD)
- Pin-compatible upgrade path to PIC12F1822 family (vsPIC12F1822-I/MF)
Ghi chú thiết kế
Estimated: The PIC12F617-I/MF in DFN-8 has a thermal resistance (theta-JA) of 31.3 C/W when the exposed pad is soldered to a PCB ground pour of at least 0.25 sq. inch. At maximum operating current of about 8 mA at 5 V, dissipation is ~40 mW, giving a junction rise of only 1.3 C above ambient - thermal management is not a concern for normal MCU operation. Always solder the exposed pad for spec-compliant operation; otherwise theta-JA rises sharply.
Place a 100nF decoupling capacitor within 2 mm of the VDD pin (pin 1) and a bulk 10uF tantalum or ceramic capacitor on the same supply rail. The exposed pad (EP) on the bottom of the DFN package must be soldered to a copper pour on the PCB. Reserve GP0 (ICSPDAT) and GP1 (ICSPCLK) traces to a 6-pin ICSP header for in-circuit programming and debugging. Keep MCLR (pin 4) trace short to prevent false reset from noise.
Do not omit the 10k-ohm pull-up on MCLR (pin 4) - the PIC12F617 requires it for proper reset behavior and ICSP entry. The DFN exposed pad is NOT optional - leaving it unsoldered violates thermal specs and may cause intermittent failures. When migrating from PIC12F615, note that the 617 has a different CONFIG word for the internal oscillator calibration; use the proper configuration bits in MPLAB X. For low-power designs, verify the ADC acquisition time setting matches the source impedance of your sensor signal.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page; lead-free finish; MSL-1 floor life. Not AEC-Q100 qualified; for automotive designs use PIC12F617-E/MF with extended temperature or upgrade to PIC12F1822 automotive variants.
