PIC10LF322-I/P - 8-Bit MCU 896B Flash 16MHz 8-PDIP | Microchip
MPN: PIC10LF322-I/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.85 | $0.85 |
| 10 | $0.78 | $7.80 |
| 100 | $0.66 | $66.00 |
| 500 | $0.58 | $290.00 |
| 1,000 | $0.51 | $510.00 |
PIC10LF322-I/P Overview
An 8-bit microcontroller (MCU) is a small, single-chip computer built around an 8-bit data path that integrates a CPU, non-volatile program memory, volatile data RAM, and peripheral blocks such as timers, ADC, and communication interfaces on one silicon die. The PIC10 family occupies the entry-level tier of the Microchip PIC architecture hierarchy, sitting below PIC12, PIC16, PIC18, PIC24, and dsPIC families in both pin count and feature density. These MCUs are optimized for glue logic, simple sensing, and standby-control roles where board space and BOM cost dominate design decisions.
The PIC10LF322 differs from earlier PIC10F2xx devices by more than tripling program memory to 896 B, adding hardware CWG and CLC peripherals, integrating a 16 MHz high-speed internal oscillator, and supporting in-circuit serial programming (ICSP) on the same pins used for general I/O. The low-voltage 'L' silicon and F (flash) memory variant combine to give engineers field-upgradeable firmware and ultra-low sleep current (typically under 25 nA in deep sleep), making the part suitable for battery-powered or energy-harvesting designs.
Typical applications include battery management for coin-cell devices, LED blink/breathing controllers, simple sensor signal conditioning with ADC, fan or pump speed control using CWG, household appliance user-interface glue, and wearable accessories. The 8-pin PDIP package is widely preferred for breadboarding, hobby projects, and legacy through-hole production where field serviceability is valued over SMT density.
When designing with this part, observe the maximum clock of 16 MHz (or 20 MHz per alternate data) and ensure VDD stays within the 1.8 V-3.6 V LF window. The ICSP/ICSPDAT pins (typically GP0/GP1) must be accessible on the production board to allow firmware updates and device programming without desoldering the MCU.
This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found on a single manufacturer datasheet.
Drop-in alternatives for PIC10LF322-I/P — 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 PIC10LF322-I/P (same form factor and footprint) — differing in ADC, Package, Timers, Core Architecture, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC10LF320-I/P
✅ Drop-In✓ In Stock
$0.54 / Unit
View Datasheet →PIC10F322-I/MC
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.52 / Unit
View Datasheet →PIC10F320-I/P
✅ Drop-In✓ In Stock
$0.52 / Unit
View Datasheet →PIC10F200-I/P
✅ Drop-In✓ In Stock
$0.28 / Unit
View Datasheet →PIC10F202-I/P
✅ Drop-In✓ In Stock
$0.47 / Unit
View Datasheet →PIC10LF322-I/P Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC 8-bit RISC (mid-range) |
| Program Memory | 896 B (512 x 14 words) Flash |
| Data RAM | 64 B |
| Maximum CPU Speed | 16 MHz (8 MHz internal default) |
| Operating Voltage (LF) | 1.8 V to 3.6 V |
| I/O Pins | 4 |
| ADC | 8-bit, up to 4 channels |
| Timers | 2 x 8-bit, 1 x 16-bit |
| Internal Oscillator | 16 MHz HFINTOSC, 31 kHz LFINTOSC |
| Package | 8-PDIP (through-hole, 300 mil) |
| Operating Temperature | -40 C to +85 C (industrial) |
| Special Peripherals | CLC, CWG, NCO, PWM |
| Programming | ICSP (2-wire, on GP0/GP1) |
| RoHS Status | Compliant (lead-free) |
| MSL Level | 1 (unlimited) |
PIC10LF322-I/P Pin Configuration
| Pin 1 | GP3/MCLR — General-purpose I/O / Master Clear (reset, active-low) |
| Pin 2 | GP0/ICSPDAT — General-purpose I/O / ICSP data |
| Pin 3 | GP1/ICSPCLK — General-purpose I/O / ICSP clock |
| Pin 4 | VSS — Ground reference |
| Pin 5 | GP2 — General-purpose I/O (also ADC channel) |
| Pin 6 | GP2 (alt) — Alternate GP2 function |
| Pin 7 | GP1 (alt) — Alternate GP1 function |
| Pin 8 | VDD — Positive supply, 1.8 V to 3.6 V |
Typical Applications
PIC10LF322-I/P is suitable for 7 applications: Coin-Cell Battery Sensor Node, LED Breathing / Status Controller, Cap-Touch Button Replacement, Household Appliance Glue Logic, Fan / Pump PWM Speed Controller, Wearables and Fitness Accessories, Industrial Sensor Front-End Module.
Coin-Cell Battery Sensor Node
The PIC10LF322-I/P is well suited to coin-cell powered wireless sensor nodes because its 1.8 V minimum VDD matches CR2032 chemistry directly without a boost regulator. The 25 nA typical XLP sleep current (per Microchip datasheet 40001615D) means a single 240 mAh CR2032 can power periodic wake-measure-transmit cycles for years. The 8-bit ADC samples the sensor and the CWG can wake the radio only when a threshold is crossed. Recommended companions: PIC10LF322-I/P for housekeeping, MCP1700 for any 3.3 V rail, and an SPI-driven sub-GHz transceiver.
Recommended
LED Breathing / Status Controller
In a status-LED or breathing-light controller the PIC10LF322-I/P delivers smooth PWM dimming without external driver ICs. Its 16 MHz HFINTOSC and dedicated Complementary Waveform Generator (CWG) generate glitch-free 8-bit PWM at audio-band rates, eliminating LED flicker on camera. With 4 GPIO the part can also drive an RGB LED directly through ballast resistors while monitoring a single photodiode for ambient-light compensation. The tiny 8-PDIP package fits inside retrofit fixtures where a 4-layer MCU board would be overkill.
Recommended
Cap-Touch Button Replacement
The PIC10LF322-I/P can replace mechanical buttons with capacitive-touch sensing by toggling its ADC across a copper pad and using the on-chip Configurable Logic Cell (CLC) to debounce the result in hardware. Operating at 1.8 V lets the MCU sit directly on the battery rail of a remote control or wearable, with no boost stage. The 64 B RAM and 896 B flash comfortably hold a mTouch reference firmware and a small state machine.
Recommended
Household Appliance Glue Logic
In washing machines, dishwashers, and microwave ovens the PIC10LF322-I/P serves as a cost-optimized glue-logic controller: monitoring door interlocks, driving relays via CWG PWM, and signalling the main controller through a single UART GPIO. Its wide 1.8-3.6 V input tolerates noisy rectified mains rails, and the industrial -40 to +85 C temperature grade handles appliance thermal environments. The 8-PDIP package also simplifies field rework.
Recommended
Fan / Pump PWM Speed Controller
Using the PIC10LF322-I/P's on-chip CWG plus a 16 MHz clock, a closed-loop 25 kHz PWM drives a small DC fan or pump directly from a logic-level FET. The ADC reads a tachometer or thermistor to close the speed loop, while the LF silicon (1.8-3.6 V) supports direct Li-ion or 2x AA operation. The compact 8-PDIP footprint and 25 nA sleep current also let the controller shut down cleanly when the appliance is idle.
Recommended
Wearables and Fitness Accessories
The PIC10LF322-I/P is a good fit for ultra-compact wearables where every microamp and every square millimeter matters. The nanoWatt XLP technology reduces sleep current to 25 nA typical per Microchip datasheet 40001615D, extending CR2032 runtime for step counters, BLE beacons, and heart-rate accessory housings. The 8-bit ADC reads a photoplethysmography (PPG) sensor, while the CLC debounces button presses without waking the CPU.
Recommended
Industrial Sensor Front-End Module
In a 4-20 mA loop-powered sensor front end the PIC10LF322-I/P digitizes a thermocouple or RTD signal via its 8-bit ADC and modulates a small loop-current trimming FET with CWG PWM. The 1.8-3.6 V range lets it run from a low-voltage shunt supply, and the -40 to +85 C industrial grade tolerates factory-floor thermal cycling. The 8-PDIP package allows hand-soldered prototypes to evolve into a SMT variant (PIC10LF322-I/OT) for production.
Recommended
Recommended Products Summary
Engineering reference data for PIC10LF322-I/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC10LF320-I/P | PIC10F322-I/MC | PIC10F320-I/P | PIC10F200-I/P | PIC10F202-I/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 8-PDIP | 8-PDIP - same | 8-DFN (SMD) | 8-PDIP - same | 8-PDIP - same | 8-PDIP - same |
| Program Memory | 896 B Flash | 448 B Flash | 896 B Flash | 448 B Flash | 256 B Flash | 768 B Flash |
| Data RAM | 64 B | 64 B | 64 B | 64 B | 16 B | 24 B |
| Max CPU Clock | 16 MHz | 16 MHz | 16 MHz | 16 MHz | 4 MHz | 4 MHz |
| Operating Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V |
| ADC | 8-bit, 4 channels | 8-bit, 3 channels | 8-bit, 4 channels | 8-bit, 3 channels | None | None |
| I/O Pins | 4 | 4 | 4 | 4 | 4 | 4 |
| Approx. Unit Price (USD, qty 100) | 0.66 | 0.62 | 0.78 | 0.60 | 0.55 | 0.58 |
Key Differentiators
- Lowest-voltage 8-bit PIC10 with 896 B flash (vs PIC10F200-I/P)
- On-chip CWG and CLC peripherals (vs PIC10LF320-I/P)
- Industrial-grade temperature range and XLP sleep current (vs PIC10F202-I/P)
Design Notes
The PIC10LF322-I/P nanoWatt XLP technology achieves a typical sleep current of 25 nA per Microchip datasheet 40001615D. For best low-power results, disable the ADC, switch to the 31 kHz LFINTOSC, and gate all unused peripherals via the PMD register before entering Sleep. Use the weak pull-ups on GP0/GP1 only when required - they contribute roughly 5 uA each in active states.
Place a 100 nF decoupling capacitor within 5 mm of the VDD pin (pin 8 on 8-PDIP) and a 10 uF bulk capacitor at the board supply entry. Keep the ICSP/ICSPCLK traces short and isolated from high-current switching nodes; long ICSP traces degrade programming reliability and can pick up relay or PWM noise. Where the MCLR pin is used in-circuit, add a 10 kohm pull-up and 100 nF to ground to suppress ESD events.
Do not exceed the absolute maximum VDD of 3.6 V on the LF silicon - higher transient voltage from a motor or relay coil will latch-up the die. When migrating code from PIC10F2xx, the flash size jump from 256 B to 896 B requires re-mapping any interrupt-vector or bootloader assumptions. The ICD/debug header must include VDD, VSS, ICSPDAT, ICSPCLK, and MCLR to enable MPLAB X debugging.
Compliance Information
RoHS and REACH compliance per Microchip product page; not AEC-Q100 qualified - use PIC16F or dsPIC families for automotive.
