PIC12F683-I/SN - 8-bit 20MHz 3.5KB Flash MCU | Microchip
MPN: PIC12F683-I/SN ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.62 | $1.62 |
| 10 | $1.43 | $14.30 |
| 100 | $1.18 | $118.00 |
| 500 | $1.02 | $510.00 |
| 1,000 | $0.9 | $900.00 |
PIC12F683-I/SN Overview
A microcontroller (MCU) is a single-chip computer containing a CPU, program memory, RAM, and configurable peripherals. The PIC12F683 belongs to the low-pin-count (8-pin) Flash MCU family, a sub-category of 8-bit microcontrollers targeted at cost- and size-sensitive embedded designs where only a handful of I/O lines are needed but on-chip analog and timing peripherals are still required.
Key features of this device include a wide 2.0 V to 5.5 V operating voltage range, ultra-low-power nanoWatt technology with standby current of approximately 50 nA, and operating currents of roughly 11 µA at 32 kHz and 220 µA at 4 MHz. It also provides six independently configurable bidirectional I/O pins, an internal 8 MHz oscillator with software calibration, and an integrated analog comparator. The 'I' suffix designates the industrial temperature grade of -40 °C to +85 °C, while '/SN' denotes the 8-pin SOIC package.
Typical applications for the PIC12F683-I/SN include battery-powered sensor nodes, LED lighting controllers, simple motor and fan control loops, consumer remote controls, and small home appliances. The combination of nanoWatt sleep modes and on-chip peripherals makes it well suited for designs that must run for years on a single coin-cell battery.
When designing with this part, choose the appropriate internal or external oscillator configuration early in the firmware planning stage and budget Flash and RAM carefully against the 2K x 14 program word limit and 128-byte data SRAM. Decoupling the VDD pin with a 0.1 µF ceramic capacitor placed within a few millimeters of the device is strongly recommended.
This page synthesizes distributor pricing, drop-in SOIC-8 alternatives from the same PIC12F family, and practical design notes not found in the manufacturer datasheet, helping engineers select and source the right PIC12F variant for cost-sensitive, low-pin-count embedded designs.
Drop-in alternatives for PIC12F683-I/SN — 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 PIC12F683-I/SN (same form factor and footprint) — differing in Package, ADC, Internal Oscillator, Timers, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC12F683-I/P
✅ Drop-In✓ In Stock
$1.22 / Unit
View Datasheet →PIC12F675-I/SN
✅ Drop-In✓ In Stock
$0.74 / Unit
View Datasheet →PIC12F635-I/MF
✅ Drop-In✓ In Stock
$0.88 / Unit
View Datasheet →PIC12F629-I/SN
✅ Drop-In✓ In Stock
$0.82 / Unit
View Datasheet →PIC12F617-I/SN
✅ Drop-In✓ In Stock
$0.85 / Unit
View Datasheet →PIC12F615-I/SN
✅ Drop-In✓ In Stock
$0.52 / Unit
View Datasheet →PIC12F683-I/SN Maximum Ratings & Electrical Characteristics
| Family | PIC12F |
| Core | 8-bit PIC mid-range (14-bit instruction) |
| Program Memory | 3.5 KB (2K x 14) Flash |
| Data SRAM | 128 bytes |
| Data EEPROM | 256 bytes |
| Maximum CPU Frequency | 20 MHz |
| Operating Voltage | 2.0 V to 5.5 V |
| I/O Pins | 6 |
| ADC | 4-channel, 10-bit |
| Timers | One 8-bit, one 16-bit |
| CCP Modules | 1 |
| Enhanced USART | Yes (EUSART) |
| Internal Oscillator | 8 MHz with software calibration |
| Standby Current | 50 nA (typical, nanoWatt) |
| Operating Current | 11 µA at 32 kHz / 220 µA at 4 MHz (typical) |
| Analog Comparator | Yes, integrated |
| Temperature Grade | Industrial, -40 °C to +85 °C |
| Package | 8-pin SOIC (SN) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC12F683-I/SN Pin Configuration
| Pin 1 | VDD — Positive supply voltage (2.0 V to 5.5 V) |
| Pin 2 | GP5/T1CKI/OSC1/CLKIN — GPIO5 / Timer1 clock input / Oscillator input / external clock in |
| Pin 3 | GP4/AN3/T1G/OSC2/CLKOUT — GPIO4 / ADC ch3 / Timer1 gate / Oscillator output / clock out |
| Pin 4 | GP3/MCLR/VPP — GPIO3 / Master Clear (reset) / programming voltage input |
| Pin 5 | GP2/AN2/T0CKI/INT/COUT — GPIO2 / ADC ch2 / Timer0 clock in / external interrupt / comparator out |
| Pin 6 | GP1/AN1/CIN-/ICSPCLK — GPIO1 / ADC ch1 / comparator in- / ICD clock |
| Pin 7 | GP0/AN0/CIN+/ICSPDAT — GPIO0 / ADC ch0 / comparator in+ / ICD data |
| Pin 8 | VSS — Ground reference |
Typical Applications
PIC12F683-I/SN is suitable for 6 applications: Battery-Powered Sensor Node, LED Lighting Controller, Small DC Motor / Fan Speed Control, Consumer Remote Control Transmitter, Smart Home Sensor End-Node, Industrial Appliance Timing Module.
Battery-Powered Sensor Node
The PIC12F683-I/SN is a strong fit for battery-powered sensor nodes because of its 50 nA typical standby current combined with nanoWatt sleep modes, allowing multi-year operation on a coin-cell battery. Its 4-channel 10-bit ADC handles temperature, light, or simple analog front-ends without external components, and the 3.5 KB Flash comfortably accommodates a small duty-cycled application that wakes every few seconds, reads the sensor, and transmits via the integrated EUSART. Versus a discrete op-amp plus comparator solution, the integrated ADC reduces BOM cost while still meeting typical <1% FS accuracy at room temperature. Place a 0.1 µF decoupling capacitor within 5 mm of VDD and use the internal 8 MHz oscillator to minimize external part count.
Recommended
LED Lighting Controller
For small LED lighting and decorative strips, the PIC12F683-I/SN provides a 16-bit timer plus CCP/PWM channel suitable for direct MOSFET drive of single-string constant-current LEDs at modest duty cycles. The 2.0 V to 5.5 V supply range permits direct Li-ion or 3x AA battery operation without additional regulation, and the industrial temperature grade supports enclosed fixtures. Designers can use the analog comparator for over-temperature foldback and the 10-bit ADC to monitor battery voltage for low-battery cutoff, reducing external protection ICs. Estimated: at 5 V VDD, 20 MHz operation delivers roughly 5 MIPS, more than enough for smooth logarithmic dimming curves at 1 kHz PWM update rate.
Recommended
Small DC Motor / Fan Speed Control
The PIC12F683-I/SN suits low-power brushed DC motor and fan speed control loops where a single PWM output drives a logic-level MOSFET and a tach feedback signal feeds the comparator input. Closed-loop RPM control is straightforward using the 16-bit timer to gate pulses and the CCP module to generate PWM at 20 kHz or higher, above audible noise. The 6 I/O pins are sufficient for tach input, PWM output, direction bit, fault flag, and a UART diagnostic channel. Versus a 555-timer-based control loop, the PIC12F683 enables firmware-driven soft-start curves and adaptive speed profiles with no hardware rework.
Recommended
Consumer Remote Control Transmitter
For IR or RF remote controls, the PIC12F683-I/SN delivers low active current (~220 µA at 4 MHz) and nanoWatt sleep (~50 nA), enabling a CR2032 coin cell to last the entire product lifetime with daily use. The integrated 16-bit timer can synthesize 36 kHz / 38 kHz / 40 kHz carrier modulation for IR protocols such as NEC or RC5 using the CCP module. Six I/O pins cover key matrix scanning, IR LED drive, status LED, and a learning-mode UART. Compared to dedicated encoder ICs, this approach reduces BOM and allows firmware-customizable key maps.
Recommended
Smart Home Sensor End-Node
The PIC12F683-I/SN is appropriate for IoT end-nodes reporting temperature, contact, or occupancy state over a simple UART-attached radio module, where its 128-byte SRAM and 256-byte EEPROM handle small protocol stacks plus persistent calibration constants. Its wide VDD range allows direct connection to 2x AA / AAA batteries, and the analog comparator can wake the MCU on threshold crossings for sub-µA average current. The SOIC-8 package is hand-solderable for prototyping and JEDEC-qualified for high-volume SMT lines. Compared with ARM Cortex-M0+ alternatives, the PIC12F683 has lower active power at modest MIPS and a shallower learning curve.
Recommended
Industrial Appliance Timing Module
In industrial appliances such as dispensers, valve controllers, and simple timers, the PIC12F683-I/SN provides deterministic timing via its 16-bit timer and watchdog for safe unattended operation. Its industrial -40 °C to +85 °C temperature grade supports factory-floor enclosures, and the on-chip EEPROM stores calibration and runtime counters that survive power cycling. The CCP/PWM channel can drive relays, solenoids, or triac interfaces directly with optocoupler isolation. Versus an analog 555 timer plus counter chain, this design cuts BOM count and enables configurable timing via firmware rather than resistor changes.
Recommended
Recommended Products Summary
Engineering reference data for PIC12F683-I/SN — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC12F683-I/P | PIC12F675-I/SN | PIC12F629-I/SN | PIC12F617-I/SN | PIC12F615-I/SN | PIC12F635-I/MF |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SOIC-8 (SN) | PDIP-8 | SOIC-8 - same | SOIC-8 - same | SOIC-8 - same | SOIC-8 - same | DFN-8 |
| Flash Memory | 3.5 KB (2K x 14) | 3.5 KB | 1.75 KB (-50%) | 1.75 KB (-50%) | 1.75 KB (-50%) | 1.75 KB (-50%) | 1.75 KB (-50%) |
| SRAM | 128 bytes | 128 bytes | 64 bytes (-50%) | 64 bytes (-50%) | 128 bytes | 128 bytes | 128 bytes |
| ADC | 4-ch, 10-bit | 4-ch, 10-bit | 4-ch, 10-bit | No ADC | 4-ch, 10-bit | 8-ch, 10-bit | No ADC |
| CCP/PWM | Yes (1) | Yes (1) | No | No | Yes (1) | Yes (1) | No |
| Enhanced USART | Yes | Yes | No | No | Yes | Yes | No |
| Operating Voltage | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V |
| Max CPU Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
Key Differentiators
- Largest Flash in the SOIC-8 PIC12F family (vs PIC12F675-I/SN)
- Integrated EUSART and CCP/PWM peripherals (vs PIC12F629-I/SN)
- True 4-channel 10-bit ADC plus analog comparator (vs PIC12F635-I/MF)
Design Notes
Place a 0.1 µF ceramic decoupling capacitor within 5 mm of the VDD pin (pin 1) and a bulk capacitor (e.g., 10 µF) on the board's main supply. The PIC12F683 datasheet (DS41211B) recommends this layout to keep digital switching noise from coupling into the analog ADC channels. Estimated: at 5 V VDD and 20 MHz active mode, total current draw is approximately 1-2 mA depending on peripheral use.
Do not leave the MCLR/VPP pin (pin 4) floating - tie it to VDD through a 10 kΩ resistor, or configure MCLR as a digital input by setting the appropriate configuration bit. A floating MCLR causes erratic resets. The ICSPDAT and ICSPCLK pins (GP0/GP1) must also be considered; ensure no low-impedance loads conflict with in-circuit serial programming during development.
The SOIC-8 package has a typical θJA of approximately 100 °C/W in still air, which is acceptable for the low-power nature of this MCU. At maximum active current of ~2 mA at 20 MHz and 5 V, dissipation is only ~10 mW, well within the package's capability. Industrial temperature operation (-40 °C to +85 °C) is derated only by VDD min/max, not by self-heating.
Keep analog ADC inputs (AN0-AN3 on GP0-GP3 and GP5) routed away from the EUSART TX line (typically on GP4 or GP5) to minimize digital crosstalk into ADC readings. If using the internal 8 MHz oscillator, the GP5/OSC1 pin can still be used as GPIO only when no external crystal is selected via the configuration register; verify oscillator configuration bits before assigning pin functions.
Compliance Information
RoHS and REACH compliance per Microchip product page. Industrial temperature grade -40 °C to +85 °C. Not AEC-Q100 qualified; for automotive applications consult Microchip's automotive-grade PIC portfolio.
