PIC12F617T-I/MS - 8-Bit MCU, 3.5KB Flash, 20MHz, MSOP-8
MPN: PIC12F617T-I/MS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 10 | $1.62 | $16.20 |
| 100 | $1.32 | $132.00 |
| 500 | $1.12 | $560.00 |
| 1,000 | $0.98 | $980.00 |
| 2,500 | $0.84 | $2,100.00 |
PIC12F617T-I/MS Overview
A microcontroller (MCU) is a single-chip computer containing a CPU, RAM, non-volatile program memory, and programmable peripherals. PIC microcontrollers use a Harvard RISC architecture that separates program and data memory to enable deterministic instruction execution, while the mid-range core delivers 35 single-word instructions and 8 hardware stack levels. The PIC12F617 sits at the very small end of the family - 8 pins total - and is typically used as a "system glue" MCU for low-power embedded applications, where it brings real programmability into footprints formerly occupied by discrete logic or a small PLD.
Key features include an internal comparator with configurable hysteresis, a 10-bit ADC with up to 4 input channels, a hardware PWM module, brown-out reset (BOR), power-on reset (POR), and a watchdog timer (WDT) with its own independent oscillator. The device also provides in-circuit serial programming (ICSP™) and in-circuit debugging via two I/O pins, eliminating the need for an external programmer footprint. Source/sink capability is 25 mA per I/O, allowing direct drive of small relays, LEDs, and logic interfaces without buffers.
Typical applications include compact LED controllers, small motor/valve controllers, sensor signal-conditioning front ends, automotive body/comfort subsystems (AEC-Q100 qualified variants exist), low-cost battery chargers, and consumer appliance control boards. The 6 I/O count comfortably covers single-loop control applications while leaving one or two pins free for serial debug or status LEDs.
Designers should plan the I/O budget carefully: 6 I/O means 2 pins are dedicated to ICSP/ICD (PGC/PGD). The internal 4/8 MHz oscillator is factory calibrated to within ±1 % typical, eliminating an external crystal in most designs. Note that the "-I" suffix indicates industrial temperature grade; the "-E" extended grade variant covers -40 °C to +125 °C for harsher environments.
This page synthesizes current distributor pricing, drop-in alternative cross-references, and practical design guidance not consolidated on the manufacturer product page or datasheet PDF.
Drop-in alternatives for PIC12F617T-I/MS — 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 PIC12F617T-I/MS (same form factor and footprint) — differing in Package, ADC, Internal Oscillator, Instruction Set, MSL Level.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC12F615T-I/MS
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.66 / Unit
View Datasheet →PIC12F617-I/MS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC12F615T-I/MF
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.46 / Unit
View Datasheet →PIC12F617T-I/SN
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
PIC12F615T-I/SN
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.83 / Unit
View Datasheet →PIC12F1501T-I/MS
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.74 / Unit
View Datasheet →PIC12F617T-I/MS Maximum Ratings & Electrical Characteristics
| Core Processor | PIC |
| Core Size | 8-Bit |
| Core Architecture | PIC mid-range (14-bit instruction) RISC |
| Instruction Set | 35 single-word instructions |
| Stack Levels | 8 hardware |
| Program Memory Type | Flash (self read-write) |
| Program Memory Size | 3.5 KB (2K x 14) |
| RAM Size | 128 bytes |
| Maximum Clock Speed | 20 MHz |
| Internal Oscillator | 4 MHz or 8 MHz, software selectable, factory calibrated |
| Supply Voltage Range | 2.0 V to 5.5 V |
| Operating Temperature Range | -40 °C to +85 °C (Industrial, "-I") |
| I/O Pins | 6 |
| Package | MSOP-8 (3 x 3 mm, 0.90 mm height) |
| Mounting Type | Surface Mount |
| ADC | 10-bit, up to 4 channels |
| Timers | 2 × 8-bit (TMR0/TMR2) + 1 × 16-bit |
| Comparator | 1 internal, configurable hysteresis |
| PWM Channels | 1 enhanced PWM |
| Brown-out Reset / POR / WDT | Yes / Yes / Yes (independent WDT oscillator) |
| I/O Source/Sink Current | 25 mA per pin |
| Programming/Debug | ICSP™ + ICD via 2 pins |
| MSL (Moisture Sensitivity Level) | MSL3 (JEDEC J-STD-020) |
| RoHS Status | Compliant |
PIC12F617T-I/MS Pin Configuration
| Pin 1 | RA3 — General I/O (input-only on most PIC12F parts), shared with MCLR/PGM |
| Pin 2 | RA0 — General I/O / AN0 (ADC input) |
| Pin 3 | RA1 — General I/O / AN1 / comparator reference |
| Pin 4 | RA2 — General I/O / AN2 / comparator output |
| Pin 5 | VSS — Ground |
| Pin 6 | RA5 — General I/O / PGM (ICSP programming voltage) |
| Pin 7 | VDD — Positive supply (2.0 V to 5.5 V) |
| Pin 8 | RA4 — General I/O / AN3 / PGD (ICSP data) |
Typical Applications
PIC12F617T-I/MS is suitable for 6 applications: Compact LED Lighting Controller, Battery-Powered Sensor Front End, Automotive Comfort / Accessory Module, Small Motor / Valve PWM Controller, Low-Cost Battery Charger Controller, Appliance User Interface / Replacement Logic.
Compact LED Lighting Controller
The PIC12F617T-I/MS is well-suited to compact LED lighting controllers where PCB space is constrained and BOM cost dominates. Its 1 enhanced PWM channel drives a constant-current FET or LED driver, while the 10-bit ADC samples ambient light or supply current for closed-loop brightness regulation. Operating from 2.0 V to 5.5 V lets a single-cell Li-ion or USB 5 V rail feed the controller directly, and the internal 4/8 MHz oscillator eliminates a crystal. The MSOP-8 footprint fits underneath small RGB status indicators or under-cabinet strips.
Recommended
Battery-Powered Sensor Front End
The PIC12F617's 2.0 V minimum supply and sub-mA active current make it ideal for battery-powered sensor front ends (PIR motion, NTC thermistor, hall-effect switches). The internal comparator with configurable hysteresis simplifies low-side analog signal conditioning, and the 10-bit ADC with up to 4 channels reads thermistor or supply voltage for battery telemetry. Brown-out reset plus the watchdog timer with independent oscillator protect against brown-outs and code lockups during unattended deployments in IoT nodes or remote sensors.
Recommended
Automotive Comfort / Accessory Module
The PIC12F617T-I/MS - particularly the AEC-Q100 qualified variants - fits automotive comfort and accessory modules such as dome-light controllers, mirror adjusters, and seat heaters. The 25 mA I/O source/sink drives small relays and MOSFET gates directly, and the 6 I/O count comfortably handles input button matrix plus relay outputs. Operating from -40 °C to +85 °C (industrial grade) or up to +125 °C (extended grade variants) and surviving the 5 V supply noise transients of a vehicle electrical system, this MCU offers a cost-effective solution for body-electronics nodes.
Recommended
Small Motor / Valve PWM Controller
The PIC12F617T-I/MS drives brushed DC motors, small solenoids, and proportional valves via the on-chip enhanced PWM module. The 20 MHz core delivers 5 MHz instruction rate - fast enough for closed-loop PID at 1 kHz update rate. The 16-bit timer can be combined with the 8-bit timers for input capture on quadrature encoders or tach feedback. MSOP-8 occupies minimal board area in cramped actuator housings like HVAC dampers or small pump controllers, and the internal oscillator eliminates external timing components.
Recommended
Low-Cost Battery Charger Controller
The PIC12F617 powers low-cost single-cell Li-ion or lead-acid charger controllers. The internal ADC measures battery voltage and charge current, while the comparator detects end-of-charge thresholds or thermal cutoffs via an external NTC. The 25 mA I/O source/sink directly drives an indicator LED or a low-side MOSFET. Operating from 2.0 V to 5.5 V matches the typical 5V USB supply range, while the internal oscillator and 3.5 KB Flash keep the BOM to one chip and a few passives.
Recommended
Appliance User Interface / Replacement Logic
The PIC12F617T-I/MS serves as a low-cost replacement for legacy 74HC logic or analog control boards in appliances such as coffee makers, toasters, and small kitchen tools. It scans a 2-3 button matrix, drives an indicator LED or 7-segment display via PWM or bit-banging, and handles timing functions with the on-chip timers. Brown-out reset and the watchdog timer with its independent oscillator protect against supply brown-outs caused by relay switching, a typical nuisance in appliance power systems.
Recommended
Recommended Products Summary
Engineering reference data for PIC12F617T-I/MS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC12F615T-I/MS | PIC12F617-I/MS | PIC12F1501T-I/MS |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | MSOP-8 (3 x 3 mm) | MSOP-8 - same | MSOP-8 - same | MSOP-8 - same |
| Program Memory | 3.5 KB Flash (2K x 14) | 3.5 KB Flash | 3.5 KB Flash | 3.5 KB Flash |
| RAM | 128 bytes | 128 bytes | 128 bytes | 128 bytes |
| ADC | 10-bit, 4 channels | None | 10-bit, 4 channels | 10-bit, 4 channels (newer core) |
| Maximum Clock | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| I/O Pins | 6 | 6 | 6 | 6 |
| Supply Voltage | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 1.8 V to 5.5 V |
| I/O Source/Sink | 25 mA | 25 mA | 25 mA | 25 mA |
Key Differentiators
- On-chip 10-bit ADC with 4 input channels (vs PIC12F615T-I/MS)
- Self-read/write Flash with ICSP in-circuit programming (vs Legacy OTP PIC12C family)
- Internal 4/8 MHz oscillator eliminates external crystal (vs PIC12F609 family)
- 25 mA I/O source/sink capability (vs PIC16F MCU family)
Design Notes
Place a 100 nF decoupling capacitor within 5 mm of the VDD pin and a 10 µF bulk capacitor on the same supply rail. Route the ICSP/ICD lines (PGC/PGD) directly to a 2x5 or 1x5 header without series resistors; Microchip debuggers expect a direct connection. Keep analog inputs (AN0-AN3) short and away from high-current traces (relays, motor FETs) to minimize ADC noise coupling.
Pins 6 (RA5/PGM) and 8 (RA4/PGD) double as the ICSP programming pins. Do not place low-impedance loads such as LED indicators or pull-down resistors on these pins without considering programming interference. Most production designs include a 4.7 kΩ isolation resistor on the PGD line or a header that can be disconnected during programming to avoid damage to the load circuitry.
At 20 MHz with all I/O sourcing 25 mA continuously, total package dissipation can exceed 200 mW. Estimated: at 5 V VDD and 25 mA on 6 pins = 750 mW, well above the MSOP-8 thermal rating of ~555 mW on a 1 oz 1 in² copper pour. Estimate junction rise: 750 mW × 163 °C/W = 122 °C above ambient, exceeding the 85 °C industrial limit. Drive external loads through transistors, not the MCU pins directly.
Enable the on-chip brown-out reset (BOR) and watchdog timer (WDT) with its independent oscillator for unattended applications. The internal 4/8 MHz oscillator can drift up to ±5 % over the full -40 °C to +85 °C industrial range, so UART baud rates above 9600 baud require software correction. Switch to the 8 MHz HFINTOSC for higher clock speeds and use the FOSC/4 peripheral clock for consistent ADC timing.
Compliance Information
RoHS/REACH compliance per Microchip product page material declaration. Standard "-I" grade is NOT AEC-Q100 qualified; the automotive suffix variant is qualified separately. MSL3 moisture sensitivity requires dry-pack handling and 168-hour floor-life bake-out after bag opening.
