PIC10LF322T-I/OT - 8-Bit MCU, 16MHz, 896B Flash | SOT-23-6 | Microchip
MPN: PIC10LF322T-I/OT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.1 | $1.10 |
| 10 | $0.95 | $9.50 |
| 100 | $0.75 | $75.00 |
| 500 | $0.62 | $310.00 |
| 1,000 | $0.54 | $540.00 |
| 3,000 | $0.46 | $1,380.00 |
PIC10LF322T-I/OT Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (flash or ROM), data memory (RAM), and peripheral interfaces (ADC, PWM, timers, communication ports) into one package. MCUs sit beneath microprocessors in the embedded computing hierarchy: microprocessors require external memory and peripherals, while MCUs embed everything needed for stand-alone control. The PIC10 family is Microchip's smallest 8-bit line, optimized for cost-sensitive and space-constrained designs where only a few I/O are required.
Key features include 35 single-word instructions, 200 ns instruction execution at 5V, 4 I/O pins, hardware I2C and SPI support, and NanoWatt XLP (eXtreme Low Power) technology for sleep currents down to sub-microampere levels. The SOT-23-6 footprint is the same as a small analog IC, allowing direct substitution of discrete analog control circuits with a programmable device on the same board area.
The architecture is a RISC-based Harvard design with a 14-bit instruction word and separate program/data buses, enabling deterministic single-cycle instruction execution (except branches). The mid-range 8-bit core delivers efficient code density through 35 instructions, while on-chip peripherals are mapped via SFRs and accessed through standard C or assembly toolchains (MPLAB X IDE).
Typical applications include battery-powered sensor nodes, wearable form-factor controllers, LED lighting color/effect control, simple fan or pump controllers, and consumer toys where the 4-bit/4-pin GPIO budget is sufficient. The LF (low-voltage) variant extends operation down to 1.8V, enabling direct connection to single-cell alkaline or NiMH battery stacks without a boost converter.
When designing with this part, verify that the 4 available I/O pins can satisfy all required digital interfaces, because the small package count is the primary constraint. Use MPLAB X IDE with the XC8 compiler and pick the LF variant only when sub-3V operation is needed, otherwise the standard PIC10F322 is more cost-effective at 2.5V-5.5V operation.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes for engineers evaluating the PIC10LF322T-I/OT for space-constrained 8-bit designs.
Drop-in alternatives for PIC10LF322T-I/OT — 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/OT (same form factor and footprint) — differing in Core Architecture, ADC, Program Memory (Flash), Package, Data EEPROM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC10LF320T-I/OT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC10F322T-I/OT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC10F320T-E/OT
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.27 / Unit
View Datasheet →PIC10F200T-E/OT
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.36 / Unit
View Datasheet →PIC10F220T-I/OT
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.27 / Unit
View Datasheet →PIC10LF320-I/OT
✅ Drop-In✓ In Stock
$0.42 / Unit
View Datasheet →PIC10LF322T-I/OT Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC RISC (mid-range 8-bit core, 14-bit instruction word) |
| Program Memory (Flash) | 896 bytes (512 x 14 words) |
| Data RAM | 64 bytes |
| Maximum CPU Speed | 16 MHz |
| Instruction Execution | 200 ns (single cycle, except branches) |
| Supply Voltage Range | 1.8 V to 3.6 V |
| I/O Pins | 4 |
| ADC | 3-channel, 8-bit |
| PWM Channels | 2 |
| Timers | 3 (Timer0, Timer1, Timer2) |
| Watchdog Timer (WDT) | Yes |
| Power-on Reset / Brown-out Reset | Yes |
| Operating Temperature Range | -40 C to +85 C (industrial, I-grade) |
| Package | SOT-23-6 (OT) |
| Mounting Type | Surface Mount |
| Low-Power Technology | NanoWatt XLP |
| Instruction Set | 35 single-word instructions |
| MSL Level | 1 (unlimited floor life at <30 C / 85% RH) |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC10LF322T-I/OT Pin Configuration
| Pin 1 | GP3/MCLR/VPP — General-purpose I/O / Master Clear reset / ICSP programming voltage input |
| Pin 2 | VDD — Positive supply voltage (1.8 V to 3.6 V) |
| Pin 3 | VSS — Ground reference |
| Pin 4 | GP0/AN0/PWM/CLKO — GPIO / Analog input channel 0 / PWM output / Clock output |
| Pin 5 | GP1/AN1/PWM/SCL — GPIO / Analog input channel 1 / PWM output / I2C clock |
| Pin 6 | GP2/AN2/SDA — GPIO / Analog input channel 2 / I2C data |
Typical Applications
PIC10LF322T-I/OT is suitable for 6 applications: Battery-Powered Sensor Nodes, Wearable Form-Factor Controllers, LED Lighting Color and Effect Control, Simple Fan or Pump Speed Controller, Consumer Toy and Novelty Electronics, IoT Edge Device Wake-Up Co-Processor.
Battery-Powered Sensor Nodes
The PIC10LF322T-I/OT is well suited to single-cell battery sensor nodes due to its 1.8V minimum supply and NanoWatt XLP sleep currents below 1 microampere. Its 3-channel 8-bit ADC multiplexes onto 4 GPIO pins, allowing direct measurement of up to three sensors (temperature, light, voltage) without external ADC. With 896 bytes of flash, the device fits typical sensor-fusion firmware including I2C master routines and a state machine; the 16 MHz clock at 3.6V supports responsive wake-and-transmit cycles that maximize battery life between sleep intervals.
Recommended
Wearable Form-Factor Controllers
Wearables with strict PCB area budgets benefit from the PIC10LF322T-I/OT SOT-23-6 footprint, which matches a single small-signal transistor land pattern. The 1.8V-3.6V supply is compatible with single-cell Li-Ion and coin-cell chemistries without a boost converter. The 4 GPIO pins drive two PWM channels for haptic feedback or LED brightness while the remaining pins read a button input and a thermistor via the on-chip ADC, completing a full user-interface node in <30 mm squared.
Recommended
LED Lighting Color and Effect Control
The PIC10LF322T-I/OT's two PWM channels and 8-bit ADC are sufficient for direct drive of single-channel LED strips or basic RGB color mixing via external MOSFETs. The 16 MHz clock supports smooth 8-bit PWM fade transitions without visible stepping, while NanoWatt XLP standby current is critical for always-on indicator applications. The 896-byte flash budget supports MiniPIC-style color-cycle firmware plus UART-command interpretation for digital-RGB or smart-bulb applications.
Recommended
Simple Fan or Pump Speed Controller
Closed-loop fan and small pump control fits the PIC10LF322T-I/OT's peripheral set: one PWM channel drives the power MOSFET, one ADC channel reads tachometer feedback or temperature, and the remaining GPIO handles start/stop button and fault LED. The 64-byte RAM is sufficient for PID control loops with simple integer arithmetic, and the deterministic 200ns instruction execution at 16MHz keeps control loop latency under 50us. The industrial -40C to +85C operating range supports appliance and HVAC environments.
Recommended
Consumer Toy and Novelty Electronics
Cost-sensitive consumer toys rely on the PIC10LF322T-I/OT's <0.50 USD pricing at volume and sub-30mm squared PCB footprint to deliver interactive features within tight BOM cost targets. The 4 GPIO pins drive two motors via H-bridge, two buttons, or two LEDs plus a buzzer; the on-chip ADC reads analog sensors such as tilt switches or capacitive touch pads. Flash-resident firmware supports sound-effect sequencing and sleep-mode battery preservation for months of shelf life on alkaline cells.
Recommended
IoT Edge Device Wake-Up Co-Processor
In IoT edge designs where a higher-end MCU handles connectivity, the PIC10LF322T-I/OT acts as a sub-microampere wake-up co-processor that monitors sensors and toggles the main MCU's enable line. Its 1.8V minimum supply and XLP sleep current allow it to run from a coin cell for years while the main system is powered down. The I2C/SPI peripheral on two GPIO pins allows the host MCU to read ADC data on wake-up, and the small SOT-23-6 footprint places the co-processor adjacent to the sensor with no board-area penalty.
Recommended
Recommended Products Summary
Engineering reference data for PIC10LF322T-I/OT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC10LF320T-I/OT | PIC10F322T-I/OT | PIC10F320T-E/OT | PIC10F200T-E/OT | PIC10F220T-I/OT | PIC10LF320-I/OT |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SOT-23-6 (OT) | SOT-23-6 (OT) - same | SOT-23-6 (OT) - same | SOT-23-6 (OT) - same | SOT-23-6 (OT) - same | SOT-23-6 (OT) - same | SOT-23-6 (OT) - same |
| Flash Memory | 896 B | 448 B (-50%) | 896 B (same) | 448 B (-50%) | 384 B (-57%) | 384 B (-57%) | 448 B (-50%) |
| RAM | 64 B | 32 B (-50%) | 64 B (same) | 32 B (-50%) | 16 B (-75%) | 16 B (-75%) | 32 B (-50%) |
| Supply Voltage Range | 1.8 V to 3.6 V | 1.8 V to 3.6 V (same) | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 1.8 V to 3.6 V (same) |
| Maximum Clock | 16 MHz | 16 MHz (same) | 16 MHz (same) | 16 MHz (same) | 4 MHz (-75%) | 8 MHz (-50%) | 16 MHz (same) |
| ADC Channels | 3 x 8-bit | 3 x 8-bit (same) | 3 x 8-bit (same) | 3 x 8-bit (same) | None (no ADC) | 2 x 8-bit | 3 x 8-bit (same) |
| PWM Channels | 2 | 2 (same) | 2 (same) | 2 (same) | 1 (-50%) | 1 (-50%) | 2 (same) |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C (same) | -40 C to +85 C (same) | -40 C to +125 C | -40 C to +125 C | -40 C to +85 C (same) | -40 C to +85 C (same) |
Key Differentiators
- Highest flash density in PIC10 family with 1.8V minimum supply (vs PIC10LF320T-I/OT)
- Low-voltage 1.8V operation in same pinout as standard variant (vs PIC10F322T-I/OT)
- Three ADC channels plus two PWM in 6-pin footprint (vs PIC10F200T-E/OT)
Design Notes
The PIC10LF322T-I/OT draws sub-microampere current in Sleep mode thanks to NanoWatt XLP technology, but typical Run current at 16 MHz and 3.6 V is around 1 mA. For battery-powered designs, use the LF variant only when sub-3 V operation is required; otherwise the standard PIC10F322 offers better robustness at higher voltages. Decouple VDD with a 100 nF ceramic capacitor placed within 5 mm of pin 2.
GP3 is the only pin that cannot be configured as a digital output - it is MCLR/VPP by default. If a true general-purpose I/O is needed on this pin, the MCLRE configuration bit must be cleared in the configuration word, which disables external reset and relies on internal POR/BOR. Plan pin allocation carefully: GP0-GP2 are full-function GPIO, GP3 is input-only or reset.
Do not omit the ICSP programming connector or test points on prototype boards - the SOT-23-6 package has no debug header. Production programmers such as PICkit 3/4 or MPLAB Snap connect to VPP, VDD, VSS, ICSPCLK (GP1), and ICSPDAT (GP0). Leave these signals accessible in the layout to allow field firmware updates and factory calibration.
Compliance Information
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - this part targets industrial/consumer applications, not automotive. Halogen-free and conflict-mineral compliance not explicitly stated in available data.
