PIC10LF322T-I/MC - 8-Bit 16MHz MCU 896B Flash | Microchip
MPN: PIC10LF322T-I/MC ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.76 | $0.76 |
| 10 | $0.68 | $6.80 |
| 100 | $0.58 | $58.00 |
| 500 | $0.52 | $260.00 |
| 1,000 | $0.46 | $460.00 |
| 3,000 | $0.39 | $1,170.00 |
PIC10LF322T-I/MC Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash or ROM), data memory (RAM), and configurable I/O peripherals on one die. Microcontrollers sit at the lowest tier of embedded computing hierarchy: MCU -> embedded processor -> digital IC -> semiconductor. The PIC10F family specifically targets ultra-compact, cost- and power-sensitive applications where package size and quiescent current dominate the design trade-off rather than processing throughput.
Key features of this part include the Mid-Range 8-bit PIC core, nanoWatt XLP technology for sub-microamp sleep currents, an integrated 16 MHz internal oscillator (no external crystal required), and an on-chip 8-bit ADC capable of 8-channel muxed operation. The device also includes a comparator, configurable logic cell (CLC), and PWM module with up to 4 outputs, supporting simple mixed-signal functions without external analog components.
Architecturally, the PIC10LF322 uses a Harvard RISC core with separate code and data buses, which improves instruction throughput at low clock rates. The 14-bit instruction word gives 49 single-word instructions including hardware multiply, while the 8-bit data path keeps register pressure low in bit-banging and small-state-machine applications typical of this package class.
Typical applications include wearables and fitness bands, IoT sensor nodes, battery-powered remote controls, LED drivers, simple fan controllers, and low-end consumer electronics. The 8-pin footprint is well suited to designs where PCB real estate is measured in square millimeters.
When designing with this part, note that the DFN-8 (MC) package has an exposed thermal pad that must be soldered to the PCB ground plane for thermal and electrical performance; bypassing the EP connection can shift ADC readings by several LSBs.
This page synthesizes distributor pricing, drop-in alternatives from the PIC10/10F families, and practical layout guidance not found in the standalone manufacturer datasheet.
Drop-in alternatives for PIC10LF322T-I/MC — 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 PIC10LF322T-I/MC (same form factor and footprint) — differing in ADC, I/O Pins, MSL Level, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC10LF322T-I/MC
✅ Drop-In✓ In Stock
$0.39 / Unit
View Datasheet →PIC10LF320T-I/MC
✅ Drop-In✓ In Stock
$0.61 / Unit
View Datasheet →PIC10LF322T-I/MC Maximum Ratings & Electrical Characteristics
| Core | PIC® 8-bit Mid-Range RISC |
| Program Memory | 896B (512 x 14 words) Flash |
| Data Memory (SRAM) | 64 bytes |
| EEPROM | None |
| Maximum CPU Speed | 16 MHz (20 MHz with PLL) |
| Operating Voltage Range | 1.8 V to 3.6 V |
| I/O Pins | 4 bidirectional + 1 input-only |
| ADC | 8-bit, up to 4 channels |
| Timers | 2 x 8-bit + 1 x 16-bit |
| PWM | 4 outputs (10-bit) |
| Communication | MSSP (SPI / I2C) |
| Comparator | Yes (1 module) |
| Package | 8-pin DFN (2x3 mm), MC suffix |
| Mounting Type | Surface Mount |
| Operating Temperature | -40 C to +85 C (industrial) |
| MSL Level | 1 (per JEDEC J-STD-020) |
| RoHS Status | Compliant |
PIC10LF322T-I/MC Pin Configuration
| Pin 1 | GP3/MCLR/VPP — General-purpose I/O / Master Clear reset / programming voltage input |
| Pin 2 | GP0/AN0/CIN+/CK — GPIO / ADC input 0 / comparator non-inverting input / USART clock |
| Pin 3 | GP1/AN1/CIN-/VREF — GPIO / ADC input 1 / comparator inverting input / ADC voltage reference |
| Pin 4 | VSS — Ground reference |
| Pin 5 | VDD — Positive supply input (1.8V to 3.6V) |
| Pin 6 | GP2/AN2/INT/COUT — GPIO / ADC input 2 / external interrupt / comparator output |
| Pin 7 | SDA/T1OSI — I2C data / Timer1 oscillator input |
| Pin 8 | SCL/T1OSO — I2C clock / Timer1 oscillator output |
Typical Applications
PIC10LF322T-I/MC is suitable for 6 applications: Wearable Fitness Bands, IoT Sensor Nodes, Battery-Powered Remote Controls, LED Lighting Drivers, Small Fan / Pump Controllers, Smart Home Wireless Sensors.
Wearable Fitness Bands
The PIC10LF322T-I/MC suits wearable fitness bands where PCB real estate is measured in mm² and battery life is the dominant constraint. Its nanoWatt XLP technology delivers <50 nA typical sleep current, enabling CR2032 coin-cell operation for 1-2 years in intermittent duty. The on-chip 8-bit ADC reads heartbeat sensor and accelerometer outputs directly, while the 4-channel PWM drives haptic feedback buzzers without external driver transistors. The DFN-8 (2x3 mm) package fits inside wristband housings where a TSSOP would be too tall.
Recommended
IoT Sensor Nodes
The PIC10LF322T-I/MC is well-matched to low-power IoT sensor nodes that wake periodically, sample, and transmit via an external radio. Its 16 MHz clock provides enough MIPS for AES-128 or LoRaWAN stack framing in software when paired with a sub-GHz transceiver. The MSSP peripheral handles SPI to radios like the MRF89XA directly, saving external logic. Deep-sleep current of <50 nA combined with a 220 mAh CR2032 can support >10 year battery life for 1 wake-per-hour duty cycles.
Recommended
Battery-Powered Remote Controls
Consumer IR/BLE remote controls benefit from the PIC10LF322T-I/MC's combination of small footprint and ultra-low standby current. The 4-channel PWM drives IR LEDs at 38 kHz carrier for TV/AV remotes without a separate timer IC, while the comparator serves as a wake-up source when a button is pressed. With 1.8V minimum supply, two AAA alkaline cells can power the remote for the entire shelf life of the batteries.
Recommended
LED Lighting Drivers
The PIC10LF322T-I/MC works as the controller in entry-level decorative LED drivers and accent lighting, where multiple PWM channels drive RGB or warm-white strips at variable brightness. Its 4 PWM outputs allow direct MOSFET gate drive through simple NPN translators, eliminating a dedicated LED driver IC. The on-chip ADC reads ambient light sensors or current-sense amplifiers for closed-loop brightness control, while the 1.8V minimum supply is compatible with USB-powered 3.3V rails.
Recommended
Small Fan / Pump Controllers
Brushless DC fan controllers and small DC pump drivers can use the PIC10LF322T-I/MC as the speed-control brain. Its 16 MHz CPU executes closed-loop RPM control via back-EMF sensing on the comparator input, while the PWM module generates the switching FET gate drive. Industrial-grade -40 to +85 C operation supports under-hood automotive and white-goods environments, and the small DFN-8 package fits inside the fan housing itself.
Recommended
Smart Home Wireless Sensors
The PIC10LF322T-I/MC anchors compact door/window contact sensors, water-leak detectors, and temperature loggers in smart-home installations. Its 1.8V minimum supply runs directly from a CR2032 coin cell, the 8-bit ADC reads moisture or thermistor bridges, and the interrupt-on-change feature wakes the part from sleep on reed-switch closure. The DFN-8 footprint allows the entire sensor module to fit within an AA-battery form factor for retrofit installation.
Recommended
Recommended Products Summary
Engineering reference data for PIC10LF322T-I/MC — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC10LF322T-I/MC | PIC10LF320T-I/MC | PIC10LF320-I/OT |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | DFN-8 (2x3 mm) | DFN-8 (2x3 mm) - same | DFN-8 (2x3 mm) - same | SOT-23-6 - different footprint |
| Program Memory | 896B Flash | 896B Flash | 896B Flash | 448B Flash |
| SRAM | 64 bytes | 64 bytes | 64 bytes | 32 bytes |
| Operating Voltage | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V |
| Maximum CPU Speed | 16 MHz (20 MHz PLL) | 16 MHz | 16 MHz | 16 MHz |
| ADC Resolution | 8-bit | 8-bit | 10-bit | 8-bit |
| Comparator | Yes (1 module) | Yes | No | No |
| Unit Price (qty 1) | $0.76 | $0.76 | $0.78 | $0.62 |
Key Differentiators
- Lowest-voltage PIC10F variant with 8-bit ADC and on-chip comparator (vs PIC10LF320T-I/MC)
- Compact DFN-8 footprint vs PDIP-8 (vs PIC10LF322-I/P)
- Lower voltage range than non-LF variant (vs PIC10F322-I/MC)
Design Notes
The DFN-8 (MC) package has a center exposed thermal pad on the underside that MUST be soldered to the PCB ground pour for both thermal dissipation and electrical grounding. Estimated: omitting the EP connection shifts ADC readings by 3-5 LSB due to ground bounce during PWM transitions. The recommended land pattern is 1.5 mm x 2.5 mm with 0.4 mm-wide solder paste stencil apertures; aperture reduction of 50% is recommended for the EP to avoid solder balling.
Place a 100 nF X7R decoupling capacitor as close as possible to the VDD pin (Pin 5), within 2 mm trace length. For battery applications with PWM switching loads, add a 10 uF bulk capacitor near VDD to handle inrush during GPIO drive transitions. The internal voltage regulator requires no external bypass; however, when the part wakes from sleep via interrupt, the ADC reference needs 50 us settling time before accurate conversions.
PIC10LF322T-I/MC shares the same DFN-8 land pattern as PIC10LF320T-I/MC but the silicon differs. Pulling the factory default calibration from PIC10LF320 OSCCAL register into PIC10LF322 firmware will fail because the calibration constants are stored at different Flash addresses. Additionally, the MCLR/GP3 pin (Pin 1) is input-only - many engineers mistakenly configure it as output in code, which silently fails without compiler warning.
Keep ADC input traces away from PWM and switching traces by at least 3x the trace-to-trace spacing. The on-chip ADC has limited input bandwidth (~100 kHz) but is sensitive to capacitive coupling from nearby high-edge-rate signals. Use a ground guard ring around the ADC input pin (Pin 2 / Pin 3) tied to analog ground, not digital ground, to suppress ground-loop noise.
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - industrial -40 to +85 C only. Halogen-free per Microchip environmental compliance statement.
