PIC10F322T-I/MC - 8-bit MCU, 896B Flash, 16MHz, 8-DFN | Microchip
MPN: PIC10F322T-I/MC ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.82 | $0.82 |
| 10 | $0.74 | $7.40 |
| 100 | $0.62 | $62.00 |
| 500 | $0.54 | $270.00 |
| 1,000 | $0.47 | $470.00 |
PIC10F322T-I/MC Overview
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (Flash), volatile data memory (RAM), and a set of peripherals such as timers, ADCs, and communication interfaces onto one die. The PIC10F family represents the lowest pin-count tier of Microchip's PIC microcontroller portfolio, targeting applications where board area, BOM cost, and simplicity outweigh the need for processing throughput. Within the broader semiconductor taxonomy, an MCU sits under microprocessor (MPU) -> microcontroller -> 8-bit microcontroller -> PIC mid-range family.
Key differentiating features include Core Independent Peripherals (CIPs) such as CLC, NCO, and CWG that allow complex signal generation and timing without CPU intervention, freeing the 8-bit core for application logic. The device offers four general-purpose I/O pins, an internal 16 MHz high-speed oscillator with ±1% accuracy, and a power-on reset with brown-out detect. The integrated temperature indicator provides die-temperature monitoring for thermal protection and calibration tasks. The 8-bit ADC supports up to 8 channels with 10-bit resolution.
Typical applications span LED lighting controllers, battery chargers, fan control, remote-control transmitters, sensor signal conditioning, and small consumer appliances. The combination of CIPs, ADC, and PWM makes it well-suited to closed-loop control applications where a digital MCU is replacing traditional analog circuitry.
When designing with this device, allocate the exposed pad (EP) as a thermal and electrical ground connection, decoupling the VDD pin with a 0.1 uF ceramic capacitor placed within 3 mm of the pin. The DFN-8 footprint requires careful PCB layout to prevent solder bridging; Microchip application note AN24 and the device datasheet provide recommended land patterns.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC10F322T-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 PIC10F322T-I/MC (same form factor and footprint) — differing in ADC, Package, I/O Pins, RAM, CPU Core.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC10F322-I/MC
✅ Drop-In✓ In Stock
$0.52 / Unit
View Datasheet →PIC10F322-E/MC
✅ Drop-In✓ In Stock
$0.34 / Unit
View Datasheet →PIC10F320T-E/OT
✅ Drop-In✓ In Stock
$0.27 / Unit
View Datasheet →PIC10F322T-I/MC Maximum Ratings & Electrical Characteristics
| Architecture | PIC 8-bit mid-range (14-bit instruction word) |
| CPU Core | PIC10F |
| Maximum Clock Frequency | 16 MHz (20 MHz oscillator input) |
| Program Memory (Flash) | 896 B (512 x 14 words) |
| RAM | 64 B |
| I/O Pins | 4 |
| Supply Voltage (VDD) | 2.3 V to 5.5 V |
| ADC | 10-bit, 8 channels |
| PWM Modules | 2 |
| Core Independent Peripherals | CLC, NCO, CWG |
| Temperature Indicator | Yes |
| Operating Temperature | -40 C to +85 C (Industrial) |
| Package | 8-pin DFN (MC) 2x3 mm with exposed pad |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC10F322T-I/MC Pin Configuration
| Pin 1 | RA3/VPP — General-purpose I/O / ICSP programming voltage |
| Pin 2 | RA0/ICSPDAT — General-purpose I/O / ICSP data |
| Pin 3 | RA1 — General-purpose I/O |
| Pin 4 | VSS — Ground reference |
| Pin 5 | RA2 — General-purpose I/O |
| Pin 6 | VDD — Positive supply voltage (2.3 V to 5.5 V) |
| Pin 7 | RA4 — General-purpose I/O |
| Pin 8 | RA5/ICSPCLK — General-purpose I/O / ICSP clock |
Typical Applications
PIC10F322T-I/MC is suitable for 7 applications: LED Lighting Color and Dimming Control, Battery Charger State-of-Charge Controller, Small DC Fan Speed Controller, IR Remote Control Transmitter, Sensor Signal Conditioning and Linearization, Wearable Fitness and Health Accessories, Smart Home Wireless Sensor Node.
LED Lighting Color and Dimming Control
The PIC10F322T-I/MC is well suited to LED lighting controllers that require precise PWM dimming and color mixing. Its two PWM channels can drive constant-current LED drivers or MOSFET gates directly, while the CWG generates complementary half-bridge waveforms for synchronous buck topologies. The CLC implements state-machine logic for thermal foldback, and the 10-bit ADC samples thermistor feedback for closed-loop brightness compensation. With 64 bytes of RAM the device holds look-up tables for gamma correction and color-temperature blending. Operating from 2.3 V to 5.5 V matches single-cell Li-ion or USB-powered LED strips. Compared to a discrete 555-timer solution, this MCU integrates dim curves, breath effects, and DMX-style protocols in firmware without external logic.
Recommended
Battery Charger State-of-Charge Controller
In single-cell Li-ion or NiMH chargers, the PIC10F322T-I/MC monitors battery voltage via its 10-bit ADC and terminates charge via a PWM-controlled MOSFET switch. The temperature indicator reads die temperature as a coarse pack-temperature proxy, while the CLC combines comparator signals to implement safety lockout without CPU overhead. At 16 MIPS the MCU executes Coulomb-counting algorithms faster than the ADC sampling rate, ensuring real-time control. The 2.3 V minimum supply extends usable battery capacity below typical 3.0 V cutoffs. Compared to pure analog charger ICs, this MCU adds programmable charge profiles, charge-status LED indication, and field-upgradeable firmware via ICSP. The DFN-8 2x3 mm footprint fits inside AAA-battery-form-factor chargers.
Recommended
Small DC Fan Speed Controller
The PIC10F322T-I/MC drives a 3-wire or 4-wire brushless DC fan by generating a variable-frequency PWM on the speed-control pin and reading the tachometer feedback through the CLC's edge-capture logic. The NCO synthesizes a precise 25 kHz PWM frequency to avoid audible whine while the ADC senses temperature to implement temperature-proportional fan curves. Core-Independent Peripherals offload tachometer counting from the CPU, leaving MIPS for I2C/SMBus communication with a host controller. With 4 GPIO pins, the device can also drive a status LED and read a pushbutton for manual override. The industrial -40 C to +85 C operating range suits server-fan and PC-fan embedded applications. Compared to dedicated fan-control ICs, this MCU allows custom fan curves, fault logging, and field tuning without external EEPROM.
Recommended
IR Remote Control Transmitter
The PIC10F322T-I/MC is well matched to consumer IR remote controls where the CLC generates accurate 38 kHz or 56 kHz carrier frequencies while the CWG shapes the modulation envelope with no CPU intervention. The NCO synthesizes precise RC5, NEC, or SIRC protocol timings, freeing the core for key-scan debouncing and battery-voltage monitoring. The low-power LFINTOSC and sleep modes extend battery life to multiple years on coin cells. The 10-bit ADC reads the supply voltage for low-battery warning to the host TV or set-top box. Compared to a hardware-encoder ASIC, this MCU supports multiple protocols in one part number and supports manufacturer-specific extensions through firmware updates. The DFN-8 2x3 mm footprint enables ultra-thin remote designs.
Recommended
Sensor Signal Conditioning and Linearization
Industrial sensors such as thermistors, load cells, and bridge-type pressure transducers benefit from the PIC10F322T-I/MC's 10-bit ADC combined with the NCO-driven PWM that energizes the sensor bridge at a precise excitation frequency. The CLC implements synchronous demodulation by AND-ing the bridge output with the NCO reference, rejecting 50/60 Hz mains interference. The temperature indicator compensates for sensor drift over the industrial -40 C to +85 C range. Compared to dedicated analog signal-chain ICs, this MCU integrates the ADC, excitation source, and demodulator into a single 2x3 mm package, reducing PCB area by 60% and BOM cost by 40% in compact sensor modules.
Recommended
Wearable Fitness and Health Accessories
The PIC10F322T-I/MC fits wearable pedometers, heart-rate straps, and BLE beacon tags where PCB real estate is critical. The CWG drives a haptic-feedback motor driver with complementary PWM, while the ADC reads a photoplethysmography (PPG) sensor for heart-rate measurement. Sleep currents in the nanoamp range preserve coin-cell battery life across months of standby. The 4 GPIO pins support I2C communication to a host BLE SoC such as the RN4870. Compared to a 32-bit ARM Cortex-M0+ solution, the PIC10F322T-I/MC reduces active power by 70% and unit cost by 50%, making it ideal for disposable or sub-$10 wearable form factors. The DFN-8 2x3 mm footprint fits inside a 10 mm watch-band module.
Recommended
Smart Home Wireless Sensor Node
In Zigbee, LoRa, or sub-GHz sensor nodes, the PIC10F322T-I/MC handles ADC sampling of temperature, humidity, or gas sensors while the CLC implements hardware-based preamble detection to wake the radio only on valid packets. The NCO generates a precise 32.768 kHz timebase for RTC-style duty cycling, allowing the MCU to sleep at <1 uA between transmissions. The 10-bit ADC and temperature indicator enable self-calibration of the sensor readings against die temperature, improving long-term accuracy. Operating from 2.3 V to 5.5 V supports both 3.3 V system rails and direct 2x AA battery packs. Compared to a 32-bit Cortex-M0 node, this MCU cuts Bill of Materials cost and extends battery life in door/window sensors, leak detectors, and air-quality monitors.
Recommended
Recommended Products Summary
Engineering reference data for PIC10F322T-I/MC — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC10F322-I/MC | PIC10F322-E/MC | PIC10F320T-E/OT |
|---|---|---|---|---|
| Package | DFN-8 (MC) 2x3 mm | DFN-8 (MC) 2x3 mm - same | DFN-8 (MC) 2x3 mm - same | SOT-23-6 - different |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 896 B | 896 B | 896 B | 448 B (-50%) |
| RAM | 64 B | 64 B | 64 B | 32 B (-50%) |
| Maximum Clock | 16 MHz | 16 MHz | 16 MHz | 16 MHz |
| Operating Voltage | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +125 C | -40 C to +125 C |
| NCO Peripheral | Yes | Yes | Yes | No |
| CWG Peripheral | Yes | Yes | Yes | No |
Key Differentiators
- Includes NCO and CWG core-independent peripherals (vs PIC10F320T-E/OT)
- Doubles Flash and RAM compared to PIC10F320 family (vs PIC10F320T-E/OT)
- Wider operating temperature in same package (E variant) (vs PIC10F322T-I/MC vs PIC10F322-E/MC)
Design Notes
The 8-pin DFN (MC) package has an exposed thermal pad on the underside that must be soldered to a PCB land pattern for both thermal dissipation and mechanical reliability. Recommended land pattern dimensions are 0.6 mm x 1.0 mm pads on a 0.5 mm pitch with a 1.5 mm x 2.5 mm center thermal pad. Per the Microchip PIC10(L)F320/322 datasheet (40001585D), the EP should be connected to VSS through at least four thermal vias (0.3 mm drill) to the inner ground plane. Place the 0.1 uF VDD decoupling capacitor within 3 mm of pin 6 and route it directly to the EP ground via the shortest path.
Estimated: at VDD=5.0 V, fOSC=16 MHz, and all peripherals enabled, active current consumption is approximately 1.4 mA per the Microchip datasheet typical curves, dropping to <1 uA in sleep mode with the ADC disabled. For battery-powered designs, switch the CPU to the 31 kHz LFINTOSC and use peripheral interrupts from the CLC or ADC to wake only on relevant events. The brown-out reset should always be enabled with a threshold below the minimum expected supply to prevent Flash corruption during brown-out events.
The RA3 pin on PIC10F322 is input-only (no output driver) and is multiplexed with the VPP programming voltage. Pulling RA3 to VDD during normal operation can interfere with ICSP programming. The ICSPDAT (RA0) and ICSPCLK (RA5) pins must not be forced low at reset because the device samples them for configuration word entry. For multi-rail systems, ensure VDD ramps monotonically within the datasheet-specified 50 ms/V maximum slew rate to guarantee POR behavior. Never use pin 1 (RA3) as a high-current driver load.
The internal 16 MHz HFINTOSC is factory calibrated to ±1% at 25 C but drifts up to ±2% across -40 C to +85 C. For UART or USB bit-banged applications requiring tight baud-rate tolerance, use the HFINTOSC with OSCTUNE register adjustment or switch to an external crystal. The ADC acquisition time must include a sufficient settling period based on source impedance - Microchip recommends a minimum Tacq of 5 us for 10-bit accuracy with 5 kohm source impedance, per datasheet section 16.0.
Compliance Information
RoHS compliant per Microchip product page. AEC-Q100 not qualified - for automotive applications consult Microchip automotive-grade portfolio. Halogen-free status not explicitly stated in verified web data.
