PIC12F617-I/MF - 8-bit MCU, 3.5KB Flash, 20MHz | Microchip
MPN: PIC12F617-I/MF ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.21 | $1.21 |
| 10 | $1.09 | $10.90 |
| 100 | $0.95 | $95.00 |
| 500 | $0.84 | $420.00 |
| 1,000 | $0.73 | $730.00 |
PIC12F617-I/MF Overview
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.
Drop-in alternatives for PIC12F617-I/MF — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC12F617-I/MF (same form factor and footprint) — differing in Package, Internal Oscillator, Program Memory (Flash), ADC, Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC12F617T-I/MF
✅ Drop-In✓ In Stock
$1.19 / Unit
View Datasheet →PIC12F617-E/MF
✅ Drop-In📋 Reference alternative (not in catalog)
PIC12F615-I/MD
✅ Drop-In✓ In Stock
$0.64 / Unit
View Datasheet →PIC12F615T-I/MF
✅ Drop-In✓ In Stock
$0.46 / Unit
View Datasheet →PIC12F1572-E/MF
✅ Drop-In✓ In Stock
$0.78 / Unit
View Datasheet →PIC12F1822-I/MF
✅ Drop-In📋 Reference alternative (not in catalog)
PIC12F509-I/MC
✅ Drop-In✓ In Stock
$0.55 / Unit
View Datasheet →PIC12F510-I/MC
✅ Drop-In✓ In Stock
$0.78 / Unit
View Datasheet →PIC12F617-I/MF Maximum Ratings & Electrical Characteristics
| 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 |
| Package | 8-pin DFN (3x3 mm) with exposed pad |
| Operating Temperature | -40 C to +85 C (industrial) |
| Mounting Type | Surface Mount |
| MSL Level | 1 (unlimited floor life) |
| RoHS Status | Compliant |
PIC12F617-I/MF Pin Configuration
| Pin 1 | VDD — Positive supply voltage (4.5V to 5.5V) |
| Pin 2 | GP5 — Bidirectional I/O pin 5; analog channel AN3 |
| Pin 3 | GP4 — Bidirectional I/O pin 4; analog channel AN2 |
| Pin 4 | GP3/MCLR/VPP — Bidirectional I/O pin 3, Master Clear reset, programming voltage input |
| Pin 5 | GP2 — Bidirectional I/O pin 2; analog channel AN2/T0CKI/INT |
| Pin 6 | GP1 — Bidirectional I/O pin 1; ICSPCLK; analog channel AN1 |
| Pin 7 | GP0 — Bidirectional I/O pin 0; ICSPDAT; analog channel AN0 |
| Pin 8 | VSS — Ground reference |
Typical Applications
PIC12F617-I/MF is suitable for 6 applications: 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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
Recommended Products Summary
Engineering reference data for PIC12F617-I/MF — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | 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 |
Key Differentiators
- Integrated 8 MHz internal oscillator eliminates external crystal (vs PIC12F615-I/MD)
- ECCP enhanced PWM module and 2 analog comparators (vs PIC12F615-I/MD)
- Pin-compatible upgrade path to PIC12F1822 family (vs PIC12F1822-I/MF)
Design Notes
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.
Compliance Information
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.
