PIC10LF320T-E/OT - 8-bit 16MHz MCU 448B Flash SOT-23-6 | Microchip
MPN: PIC10LF320T-E/OT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.1 | $1.10 |
| 10 | $0.96 | $9.60 |
| 100 | $0.82 | $82.00 |
| 500 | $0.71 | $355.00 |
| 1,000 | $0.62 | $620.00 |
| 3,000 | $0.54 | $1,620.00 |
PIC10LF320T-E/OT Overview
An 8-bit microcontroller (MCU) is a single-chip computer that combines a CPU, non-volatile program memory, working RAM, and peripheral blocks into one IC. The PIC10 family is Microchip's smallest-footprint line, designed to replace discrete logic and small analog functions with programmable intelligence while occupying a few square millimetres of PCB. Within the broader taxonomy, PIC10LF320 sits at: microcontroller -> 8-bit MCU -> PIC10 family -> PIC10F32X sub-family of mid-range core devices. The 'LF' prefix denotes the low-voltage (1.8-3.6V) variant optimized for battery-powered and energy-harvesting applications.
Key features include 16MHz internal oscillator operation, 4 user I/O with interrupt-on-change capability, an 8-bit ADC with internal voltage reference, hardware PWM, and dedicated peripherals for waveform synthesis (NCO) and complementary gate-driver signalling (CWG). The temperature indicator peripheral provides on-die thermal sensing without an external sensor. The device supports in-circuit serial programming (ICSP) via two pins, enabling firmware updates after PCB assembly.
Architecturally, the PIC10LF320 uses Microchip's enhanced mid-range 14-bit instruction core with a single accumulator and hardware stack, providing deterministic interrupt latency and predictable code execution. The CLC and NCO blocks allow digital logic and frequency synthesis functions to be implemented in hardware without CPU intervention, reducing firmware overhead and power consumption in event-driven applications.
Typical applications include portable consumer accessories, LED lighting controllers, battery management for single-cell Li-ion or coin-cell products, sensor signal conditioning, and replacement of discrete logic/analog circuitry in space-constrained designs. The automotive 'E' temperature grade (-40C to +125C) makes the part suitable for under-hood and harsh-environment modules. When designing with this part, prioritize pin assignment to expose ICSP pins (typically GP0/GP1) and provide adequate decoupling (100nF plus 1uF bulk) within 3mm of the VDD pin to meet ADC noise specifications.
Drop-in alternatives for PIC10LF320T-E/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 PIC10LF320T-E/OT (same form factor and footprint) — differing in Core Architecture, ADC, Operating Temperature, Timers, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC10LF320-I/OT
✅ Drop-In✓ In Stock
$0.42 / Unit
View Datasheet →PIC10LF320-E/OT
✅ Drop-In✓ In Stock
$0.38 / Unit
View Datasheet →PIC10LF320T-I/OT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC10F320T-E/OT
✅ Drop-In✓ In Stock
$0.27 / Unit
View Datasheet →PIC10F322-E/OT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC10F320-I/OT
✅ Drop-In✓ In Stock
$0.33 / Unit
View Datasheet →PIC10F200T-E/OT
✅ Drop-In✓ In Stock
$0.36 / Unit
View Datasheet →PIC10LF320T-E/OT Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC 8-bit enhanced mid-range (14-bit instruction) |
| Program Memory (Flash) | 448 bytes (256 x 14 words) |
| RAM | 32 bytes |
| Maximum CPU Frequency | 16 MHz |
| Operating Voltage (VDD) | 1.8 V to 3.6 V |
| I/O Pins | 4 |
| ADC | 8-bit, internal voltage reference |
| PWM Channels | Yes (hardware PWM) |
| Peripheral Features | CLC, NCO, CWG, Temperature Indicator |
| Temperature Grade | Automotive: -40C to +125C |
| Package | SOT-23-6 |
| Mounting Type | Surface Mount |
| Programming | ICSP (In-Circuit Serial Programming) |
| RoHS Status | Compliant |
PIC10LF320T-E/OT Pin Configuration
| Pin 1 | VDD — Positive power supply (1.8V to 3.6V) |
| Pin 2 | VSS — Ground reference |
| Pin 3 | GP0/ICSPDAT — General-purpose I/O / ICSP data |
| Pin 4 | GP1/ICSPCLK — General-purpose I/O / ICSP clock |
| Pin 5 | GP2 — General-purpose I/O |
| Pin 6 | GP3 — General-purpose I/O (input only) |
Typical Applications
PIC10LF320T-E/OT is suitable for 7 applications: Coin-Cell Battery Powered Sensor Node, Automotive Sensor Signal Conditioning, LED Lighting Controller, Replacement of Discrete Logic / Analog Circuitry, Consumer Remote Control / HID Dongle, Industrial IoT Edge Module, Battery Charging Controller (Simple).
Coin-Cell Battery Powered Sensor Node
The PIC10LF320T-E/OT fits coin-cell battery sensor nodes through its 1.8V-3.6V operating range, 16MHz mid-range core, and sub-microamp sleep current. With 4 GPIO available, the MCU can directly interface a single I2C sensor, drive an indicator LED via PWM, and read a thermistor via the integrated 8-bit ADC. The on-chip temperature indicator eliminates an external sensor for basic thermal monitoring. The SOT-23-6 footprint (under 9 mm^2) fits even the smallest wearable or disposable medical patches. Hardware CLC and NCO let the core remain in sleep while peripheral blocks generate wake-up events, extending battery life into the multi-year range typical of wireless sensor applications.
Recommended
Automotive Sensor Signal Conditioning
The PIC10LF320T-E/OT's automotive -40C to +125C temperature grade and integrated 8-bit ADC make it suitable for harsh-environment sensor signal conditioning such as automotive fluid-level, position, or temperature modules. The hardware PWM, CWG, and NCO peripherals support direct drive of LEDs, optocouplers, or simple gate-driver signals without external timer ICs. The 16MHz CPU executes ADC-to-PWM control loops at high update rates. Compared to discrete op-amp + comparator solutions, the PIC10LF320 integrates adjustment calibration in firmware, allowing late-stage trim without hardware rework - a key advantage for low-volume automotive variants.
Recommended
LED Lighting Controller
The PIC10LF320T-E/OT is ideal for compact LED lighting controllers through its hardware PWM channel, CWG complementary waveform generator, and 16MHz timing precision. The NCO can synthesize precise dimming frequencies or color-mixing clocks while the CPU remains idle, dramatically reducing active-mode power. Operating from 1.8V to 3.6V allows direct battery or USB-powered operation. The 8-bit ADC provides closed-loop current sensing for constant-current LED regulation, while the CLC block can implement hardware overcurrent protection independent of firmware timing. The SOT-23-6 package drops into space-constrained bulb and strip-form-factor designs.
Recommended
Replacement of Discrete Logic / Analog Circuitry
The PIC10LF320T-E/OT replaces discrete logic gates, 555 timers, and small analog circuits with programmable intelligence in the same SOT-23-6 footprint. With 448 bytes of Flash, the part can implement complex state machines, timing sequences, or conditional logic that would otherwise require multiple 74-series packages. The CLC peripheral provides hardware-configurable combinational/sequential logic operating independently of the CPU, enabling glue-logic replacement at zero software overhead. ICSP allows post-assembly programming, eliminating the need to program parts before PCB soldering. Net result: BOM reduction, PCB simplification, and late-stage design flexibility.
Recommended
Consumer Remote Control / HID Dongle
The PIC10LF320T-E/OT fits consumer remote controls and HID dongles through its low-voltage operation, 4 GPIO for IR LED, button matrix, or USB-CDC signalling, and sub-1uA sleep current. The PWM drives an IR or RF carrier while the timer/counter measures pulse timing for protocol decoding. Internal 16MHz oscillator eliminates external crystals, reducing BOM and PCB area. The automotive temp grade (E suffix) provides margin for hand-held devices exposed to sunlight or body-heat environments. The CWG block generates complementary PWM outputs for direct half-bridge LED drive without a dedicated gate driver IC.
Recommended
Industrial IoT Edge Module
The PIC10LF320T-E/OT serves as a low-cost edge processor in industrial IoT modules where 4 GPIO, ADC, PWM, and serial peripherals are sufficient. The temperature indicator allows board-level thermal monitoring, while the 8-bit ADC reads analog sensor outputs (4-20 mA loops via shunt, thermistors, or potentiometers). Hardware NCO generates precision timing signals for sensor excitation or modulation. The automotive-grade silicon (E suffix) operates reliably in factory environments with extended temperature swings. Pin-compatible upgrade paths (PIC10F322 for more Flash, PIC10F320 for higher voltage) simplify product family design without PCB changes.
Recommended
Battery Charging Controller (Simple)
The PIC10LF320T-E/OT can implement a simple linear or switch-mode battery charger for single-cell Li-ion, LiFePO4, or NiMH chemistries. The 8-bit ADC monitors battery voltage and charge current, while the PWM and CWG drive a MOSFET or BJT pass element. The on-chip temperature indicator provides basic charge-termination safety by sensing die temperature rise during fast charge. Compared to dedicated charger ICs, the PIC10LF320 offers programmable charge profiles and end-of-charge criteria that can be customized via firmware, useful for low-volume or specialty battery packs where a dedicated charger IC would not be cost-effective.
Recommended
Recommended Products Summary
Engineering reference data for PIC10LF320T-E/OT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC10LF320-I/OT | PIC10LF320-E/OT | PIC10LF320T-I/OT | PIC10F320T-E/OT | PIC10F322-E/OT | PIC10F320-I/OT | PIC10F200T-E/OT |
|---|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SOT-23-6 | SOT-23-6 (same) | SOT-23-6 (same) | SOT-23-6 (same) | SOT-23-6 (same) | SOT-23-6 (same) | SOT-23-6 (same) | SOT-23-6 (same) |
| Program Memory (Flash) | 448 bytes (256 x 14) | 448 bytes (256 x 14) | 448 bytes (256 x 14) | 448 bytes (256 x 14) | 448 bytes (256 x 14) | 896 bytes (512 x 14) | 448 bytes (256 x 14) | 375 bytes |
| Operating Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 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 | 2.3 V to 5.5 V | 2.0 V to 5.5 V |
| Temperature Grade | Automotive -40C to +125C | Industrial -40C to +85C | Automotive -40C to +125C | Industrial -40C to +85C | Automotive -40C to +125C | Automotive -40C to +125C | Industrial -40C to +85C | Automotive -40C to +125C |
| ADC | 8-bit, with internal Vref | 8-bit, with internal Vref | 8-bit, with internal Vref | 8-bit, with internal Vref | 8-bit, with internal Vref | 8-bit, with internal Vref | 8-bit, with internal Vref | None |
| Advanced Peripherals (CLC/NCO/CWG) | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No (legacy family) |
| Tape & Reel Packaging | Yes | No (tube/tray) | No (tube/tray) | Yes | Yes | No (tube/tray) | No (tube/tray) | Yes |
Key Differentiators
- Lowest-voltage operation in PIC10F32X family (vs PIC10F320T-E/OT)
- Doubled program memory versus PIC10LF320 base (vs PIC10F322-E/OT)
- Modern PIC10F32X peripheral set versus legacy PIC10F200 family (vs PIC10F200T-E/OT)
Design Notes
Place a 100nF ceramic decoupling capacitor within 3mm of the VDD pin (SOT-23-6 pin 1), with a 1uF to 10uF bulk capacitor on the same node if the supply impedance is not already low at the ICSP programming frequency. The PIC10LF320's ADC accuracy is sensitive to VDD ripple; a ferrite bead + capacitor pi-filter on VDD can improve ADC noise performance by 1-2 LSB in noisy environments. Estimated: assuming 1 LSB = Vref/256 and 1uF decoupling, ripple at ADC input remains below 5 mVpp at 16MHz CPU clock.
The SOT-23-6 package has only 6 pins and no dedicated analog or digital ground separation. Star-ground the VSS pin (pin 2) to a single ground pour; route the ICSP signals (GP0/ICSPDAT and GP1/ICSPCLK) with short traces to a programming header to avoid signal-integrity issues during in-circuit programming. Estimated: traces shorter than 25mm with 4-mil width and a 2k pull-up on ICSPCLK are recommended for reliable ICSP at 5V programming voltage.
Do not exceed the absolute maximum VDD of 4.0V (PIC10LF320) or 6.5V (PIC10F320). Ensure GP3 is used only as input - it is an input-only pin on PIC10F32X devices. When migrating firmware between PIC10LF320 and PIC10F320, verify the ADC voltage reference selection; the LF variant supports a lower range of internal Vref values. The T2 and T3 suffixes in MPN ordering codes indicate tape-and-reel orientation and should be specified correctly to match pick-and-place tooling.
Estimated: at 16MHz CPU clock and 3.3V VDD, the PIC10LF320T-E/OT draws approximately 4 mA active and <1 uA in sleep. The SOT-23-6 package has a theta_JA of approximately 200 C/W, resulting in negligible self-heating (<0.5C rise) under typical operating conditions. No thermal management is required for this device; however, in sealed enclosures with no convection, ensure the surrounding ambient temperature does not exceed the -40C to +125C automotive rating.
Compliance Information
Automotive temperature grade (E suffix) per Microchip PIC10(L)F320/322 datasheet. Not AEC-Q100 qualified - the 'E' grade refers to operating temperature range only, not automotive functional-safety certification.
