PIC10LF322-E/P - 8-Bit MCU, 896B Flash, 64B RAM, 4 I/O | Microchip
MPN: PIC10LF322-E/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.86 | $0.86 |
| 10 | $0.78 | $7.80 |
| 100 | $0.65 | $65.00 |
| 500 | $0.55 | $275.00 |
| 1,000 | $0.46 | $460.00 |
PIC10LF322-E/P Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), working memory (RAM), and peripherals such as ADCs, timers, and communication interfaces on one die. Within the broader taxonomy, the PIC10LF322 belongs to the 8-bit MCU class, which sits under microcontrollers, embedded processors, and finally semiconductors. The PIC10F32X line specifically targets ultra-compact, low-pin-count applications where PCB real estate is constrained but on-chip intelligence is required.
Key features include an integrated 8-bit ADC, PWM module, Configurable Logic Cell (CLC), Numerically Controlled Oscillator (NCO), Complementary Waveform Generator (CWG), and a temperature indicator. According to Microchip documentation, the part also offers a low-power sleep mode ideal for battery-powered designs. The 4 I/O pins make it suitable as a logic-replacement chip with programmable behavior, pin-function remapping, and dedicated peripheral outputs.
The architecture is based on Microchip's enhanced mid-range 8-bit core, providing single-cycle instruction execution at 16 MHz (4 MHz instruction cycle). On-chip peripherals such as the NCO and CWG allow precise frequency generation and complementary PWM outputs for power control, while the CLC enables glue-logic replacement without external gates.
Typical applications include IoT sensor nodes, wearable electronics, LED lighting controllers, simple motor control, and consumer-electronic logic replacement. The wide 1.8V to 3.6V supply range makes it compatible with single-cell lithium or two-AA battery chemistries without level shifting.
When designing with this part, observe the absolute maximum VDD of 3.6V and ensure decoupling (100 nF minimum, 10 uF bulk) is placed within 5 mm of the supply pin. The 4 I/O pins can be remapped to peripherals but cannot be increased; designers requiring more I/O should consider PIC12F or PIC16F families in the same PDIP-8 footprint.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC10LF322-E/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-E/P (same form factor and footprint) — differing in ADC, Program Memory Size, Package, Maximum CPU Speed, RAM Size.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC10LF320-I/P
✅ Drop-In✓ In Stock
$0.54 / Unit
View Datasheet →PIC10LF320-E/P
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
PIC10F320-I/P
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.52 / Unit
View Datasheet →PIC10F322-I/MC
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.52 / Unit
View Datasheet →PIC10F320-E/P
✅ Drop-In✓ In Stock
$0.55 / Unit
View Datasheet →PIC10F322-E/OT
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
PIC10LF322-E/P Maximum Ratings & Electrical Characteristics
| Core Processor | PIC |
| Core Size | 8-Bit |
| Program Memory Size | 896 B (512 x 14 words) Flash |
| RAM Size | 64 B |
| Number of I/O | 4 |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| Maximum CPU Speed | 16 MHz (per DigiKey) |
| ADC | 8-bit |
| Peripherals | PWM, CLC, NCO, CWG, Temperature Indicator |
| Package / Case | 8-PDIP (0.300", 7.62 mm) |
| Mounting Type | Through-Hole |
| Operating Temperature | -40C to +125C (E = extended grade) |
| Oscillator Type | Internal |
| Connectivity | None (no UART/SPI/I2C hardware block per Octopart comparison) |
| ROM Type | Flash |
| Lead-Free / RoHS | Compliant |
| MSL Level | Not applicable (through-hole package) |
PIC10LF322-E/P Pin Configuration
| Pin 1 | VDD — Positive supply voltage (1.8V to 3.6V) |
| Pin 2 | RA5/CLKIN — Bidirectional I/O / external clock input |
| Pin 3 | RA4/AN3 — Bidirectional I/O / analog channel 3 |
| Pin 4 | RA3/MCLR/VPP — Input only / Master Clear (reset) / programming voltage |
| Pin 5 | RA2/AN2 — Bidirectional I/O / analog channel 2 |
| Pin 6 | RA1/ICSPCLK — Bidirectional I/O / ICSP clock |
| Pin 7 | RA0/ICSPDAT — Bidirectional I/O / ICSP data |
| Pin 8 | VSS — Ground reference |
Typical Applications
PIC10LF322-E/P is suitable for 7 applications: Coin-Cell IoT Sensor Node, Wearable LED Indicator Controller, Industrial Logic-Replacement Chip, Frequency Synthesizer / NCO Driver, Battery Management Supervisor, Capacitive Touch Button Decoder, Automotive Interior LED Driver.
Coin-Cell IoT Sensor Node
The PIC10LF322's 1.8V minimum supply makes it directly compatible with 1.5V alkaline or 3V coin cells without boost conversion. Its 64B RAM, 4 I/O, and 16 MHz CPU are sufficient to read an analog sensor every few seconds and transmit via a low-cost RF daughter module. The internal temperature indicator can even replace an external temp sensor in cold-chain monitoring. Compared with a discrete 555-timer + op-amp solution, the PIC10LF322 adds programmable thresholds and sleep modes.
Recommended
Wearable LED Indicator Controller
With CWG (Complementary Waveform Generator) and PWM on-chip, the PIC10LF322 can drive a pair of complementary LEDs, RGB indicators, or small status displays without external gate drivers. The 4 I/O pins can be remapped so two remain GPIO for buttons while two drive LEDs via CWG. Running from a 3V CR2032 at <1 mA active current, the part suits wearables needing months of battery life. Designers save PCB area versus discrete 555 PWM circuits.
Recommended
Industrial Logic-Replacement Chip
Engineers replacing a 7400-series glue-logic board with a single MCU benefit from PIC10LF322's CLC (Configurable Logic Cell), which emulates AND/OR/XOR/D-FF gates in hardware without consuming CPU cycles. The 1.8-3.6V range tolerates 3.3V industrial buses and the -40C to +125C extended temp grade handles factory-floor conditions. Compared to discrete logic ICs, the PIC10LF322 collapses 3-5 chips into one 8-PDIP device.
Recommended
Frequency Synthesizer / NCO Driver
The PIC10LF322's on-chip NCO (Numerically Controlled Oscillator) generates high-resolution frequencies up to the system clock, with 20-bit accumulator resolution for sub-Hz steps. This makes the part a compelling choice for low-cost signal generators, piezoelectric drive, or tone production. Using only one I/O, the NCO output replaces a dedicated DDS chip in cost-sensitive designs while consuming milliwatts of power at 3V.
Recommended
Battery Management Supervisor
With its integrated 8-bit ADC and 1.8V-3.6V operation, the PIC10LF322 monitors battery voltage, current sense resistor, and temperature indicator without external analog ICs. The NCO and PWM can switch a P-MOSFET for low-side balancing in multi-cell packs. Compared to dedicated battery monitor ICs, the PIC10LF322 provides programmable thresholds, hysteresis, and a simple UART-less GPIO host interface for added flexibility.
Recommended
Capacitive Touch Button Decoder
Using the PIC10LF322's 8-bit ADC and CLC, designers can implement up to 4 capacitive touch buttons with hardware debouncing on-chip, eliminating external touch ICs. The 4 I/O can each be a touch channel with the ADC scanning in sleep mode. Compared to dedicated touch ICs, this approach saves $0.30-$0.50 per board and lets engineers customize thresholds and gesture recognition in firmware.
Recommended
Automotive Interior LED Driver
The PIC10LF322's -40C to +125C extended temperature grade and 1.8-3.6V operation from automotive 3V3 rails suit interior ambient lighting, puddle lamps, and indicator strips. Its PWM and CWG can dim RGB LEDs smoothly while the temperature indicator monitors ambient conditions. Compared to 555-timer-based PWM drivers, the PIC10LF322 enables CAN/LIN-free stand-alone lighting with programmable fade curves.
Recommended
Recommended Products Summary
Engineering reference data for PIC10LF322-E/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC10LF320-I/P | PIC10LF320-E/P | PIC10F320-I/P | PIC10F322-I/MC | PIC10F322-E/OT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 8-PDIP (0.300") | 8-PDIP (0.300") - same | 8-PDIP (0.300") - same | 8-PDIP (0.300") - same | 8-DFN - surface mount | SOT-23-6 - different footprint |
| Program Memory (Flash) | 896 B | 256 B (-71%) | 256 B (-71%) | 256 B (-71%) | 896 B (same) | 896 B (same) |
| RAM | 64 B | 32 B (-50%) | 32 B (-50%) | 32 B (-50%) | 64 B (same) | 64 B (same) |
| Supply Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V - same | 1.8 V to 3.6 V - same | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V |
| Number of I/O | 4 | 4 - same | 4 - same | 4 - same | 4 - same | 4 - same |
| Peripherals (NCO/CWG/CLC) | Yes / Yes / Yes | Yes / No / Yes | Yes / No / Yes | Yes / No / Yes | Yes / Yes / Yes | Yes / Yes / Yes |
| Temperature Grade | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) | -40C to +125C (E) |
| Approximate 1k+ Price | $0.46 - $0.50 | $0.35 - $0.40 | $0.35 - $0.40 | $0.35 - $0.40 | $0.46 - $0.50 | $0.40 - $0.45 |
Key Differentiators
- 1.8V minimum supply for direct coin-cell operation (vs PIC10F322-I/P)
- Includes CWG (Complementary Waveform Generator) (vs PIC10LF320-I/P)
- 896B Flash vs 256B Flash on smaller siblings (vs PIC10LF320-I/P)
- Extended -40C to +125C operating range (vs PIC10F322-I/MC)
Design Notes
Place a 100 nF decoupling capacitor within 5 mm of the VDD pin and a 10 uF bulk capacitor at the supply entry point. For battery-powered designs running at 1.8V from a coin cell, the PIC10LF322's low-voltage operation eliminates the need for boost conversion, but the bulk cap is still critical because peak load during ADC sampling can momentarily drop the cell voltage below the brown-out threshold.
Pin 4 (RA3/MCLR/VPP) is input-only and used for programming/Master Clear. If MCLR is enabled in the configuration words, leaving this pin floating will prevent the device from starting. Always tie RA3 to VDD via a 10 kohm pull-up when MCLR is enabled, or disable MCLR in CONFIG and use RA3 as a digital input. Programming via ICSP requires RA0 and RA1 to be accessible - do not hard-wire them to GND or VDD.
The PIC10LF322-E/P in PDIP-8 has very low power dissipation (typically <10 mW active) so thermal management is not a concern. However, in continuous ADC conversions at 16 MHz, the die temperature may exceed ambient by 5-10C in enclosed housings. Estimated: at 16 MHz with all peripherals active, IDD ~3 mA at 3.3V, junction-to-ambient thermal resistance of PDIP-8 is approximately 100 C/W, giving ~1C rise - within safe limits.
For noise-sensitive ADC applications, dedicate a quiet ground plane under the analog pins (RA1/RA2/RA4) and route the AVSS (VSS) connection to the star ground point near the regulator. The internal temperature indicator uses an on-chip diode that measures the die temperature, not the package - readings are typically 10-20C higher than ambient. Use the ADC in 8-bit mode for best noise rejection at low VDD.
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified; for automotive AEC-Q100 designs use PIC10F322-E/P or contact Microchip for Q-graded alternatives. Lead-free and halogen-free per Microchip environmental compliance statement.
