PIC10F222T-I/OT - 8-bit PIC MCU, 768B Flash, SOT-23-6 | Microchip
MPN: PIC10F222T-I/OT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.96 | $0.96 |
| 10 | $0.87 | $8.70 |
| 100 | $0.74 | $74.00 |
| 500 | $0.65 | $325.00 |
| 1,000 | $0.58 | $580.00 |
| 3,000 | $0.49 | $1,470.00 |
PIC10F222T-I/OT Overview
What is a PIC10F microcontroller? The PIC10F family is the smallest footprint 8-bit PIC microcontrollers from Microchip Technology, built around a RISC architecture that executes instructions in a single cycle (200 ns at 20 MHz, 1 µs at 8 MHz). The hierarchy is: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. PIC10F devices target cost- and space-constrained applications where a few GPIO pins and a small AFE are sufficient, replacing discrete logic with programmable intelligence.
Key differentiating specifications include 1.8V to 5.5V wide operating voltage, ultra-low-power nanoWatt technology with <1 µA standby current, 33 single-word/single-cycle instructions (excluding branches), and on-chip 4 MHz internal oscillator. The PIC10F222T-I/OT variant adds an 8-bit ADC plus a PWM module, distinguishing it from PIC10F200/PIC10F204 siblings.
Architecturally, the part employs a Harvard-style core with separate program and data buses, allowing instruction fetch and operand access in the same clock cycle. The 8-bit successive-approximation ADC runs up to 100 ksps with the on-chip RC oscillator, and the 8-bit PWM supports edge-aligned operation for LED dimming, motor control, or simple SMPS loops.
Typical applications include LED lighting drivers, fan/thermostat controllers, handheld toys, battery-powered sensor nodes, and auxiliary timer/logic replacement in larger systems. The SOT-23-6 form factor is critical for space-constrained wearables and inline cable modules.
For reliable operation, ensure VDD decoupling with a 0.1 µF ceramic capacitor placed within 5 mm of pin 1, observe the 5.5 V absolute-maximum on VDD, and avoid driving pin 4 (GP3) above VDD since it is an open-drain input-only pin on this family.
This page consolidates XAIPART distributor pricing, cross-brand drop-in alternatives, and practical design notes that supplement the manufacturer datasheet, helping procurement and design engineers verify fit, pin compatibility, and lifecycle status in a single view.
Drop-in alternatives for PIC10F222T-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 PIC10F222T-I/OT (same form factor and footprint) — differing in Instruction Set, Internal Oscillator, Operating Temperature Range, MSL Level, Number of I/O Pins.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC10F222T-E/OT
✅ Drop-In✓ In Stock
$0.83 / Unit
View Datasheet →PIC10F220T-I/OT
✅ Drop-In✓ In Stock
$0.27 / Unit
View Datasheet →PIC10F202T-I/OT
✅ Drop-In✓ In Stock
$0.35 / Unit
View Datasheet →PIC10F200T-I/OT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC10F320T-I/OT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC10F222T-I/OT Maximum Ratings & Electrical Characteristics
| Core | 8-bit PIC10 RISC |
| Program Memory Type | Flash |
| Program Memory Size | 768 B (512 x 12 words) |
| Data RAM Size | 16 B |
| Data EEPROM Size | 0 B (no on-chip EEPROM) |
| Maximum CPU Speed | 8 MHz (4 MIPS at 4 MHz instruction rate) |
| Number of I/O Pins | 4 (GP0, GP1, GP2, GP3 open-drain input-only) |
| ADC | 8-bit, up to 3 channels |
| PWM Modules | 1 x 8-bit PWM |
| Timers | 1 x 8-bit Timer0 with watchdog |
| Internal Oscillator | 4 MHz (calibrated ±1%) |
| Instruction Set | 33 single-word/single-cycle (excluding branches) |
| Package / Case | SOT-23-6 |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -40 °C to +85 °C (Industrial, "I") |
| RoHS Status | Compliant |
| MSL Level | 1 |
PIC10F222T-I/OT Pin Configuration
| Pin 1 | VDD — Positive supply voltage (2.0 V to 5.5 V) |
| Pin 2 | GP0 — Bidirectional I/O; ADC0 input; PWM output |
| Pin 3 | GP1 — Bidirectional I/O; ADC1 input |
| Pin 4 | GP2 — Bidirectional I/O; ADC2 input |
| Pin 5 | GP3/MCLR — Input-only open-drain; also ICSP programming pin (MCLR) |
| Pin 6 | VSS — Ground reference |
Typical Applications
PIC10F222T-I/OT is suitable for 6 applications: Battery-Powered LED Driver / Lighting, Handheld / Wearable Sensor Tags, Fan / Thermostat / HVAC Auxiliary Controller, Personal Care & Consumer Appliance Logic, IoT Edge Sensor / Smart-Home Node, Automotive Interior LED Lighting & Indicators.
Battery-Powered LED Driver / Lighting
The PIC10F222T-I/OT fits ultra-compact LED driver nodes because its on-chip 8-bit PWM can modulate brightness via GP0 while the 8-bit ADC on GP1/GP2 reads a thermistor or ambient-light sensor for closed-loop dimming. Operating from 2.0 V to 5.5 V it can be powered directly from a single-cell Li-ion or 2-cell alkaline pack without additional regulation, and the SOT-23-6 footprint enables inline cable modules or G4/G9 retrofit bulbs. Compared to a discrete 555-timer design, the programmable MCU adds dim curves, daylight harvesting, and OTA-friendly calibration at sub-USD 1 BOM cost.
Recommended
Handheld / Wearable Sensor Tags
The PIC10F222T-I/OT is well suited to wearable health and activity tags because its nanoWatt standby current (<1 µA typical) and 2.0 V minimum VDD allow multi-month coin-cell operation. The 8-bit ADC samples a thermistor or photodiode for skin temperature or ambient-light context, while 16 B RAM and 768 B Flash hold small state machines and event logs. The SOT-23-6 footprint occupies less than 9 mm² of PCB area, leaving room for a CR2032 holder and BLE module in a wearable form factor.
Recommended
Fan / Thermostat / HVAC Auxiliary Controller
Industrial HVAC auxiliary controls use the PIC10F222T-I/OT to replace discrete thermistor-and-timer circuits with a programmable 6-pin MCU. The 8-bit ADC reads a 10 kΩ NTC thermistor network on GP1, and the 8-bit PWM on GP0 drives a small fan or relay through a MOSFET at low duty cycle for proportional cooling. Industrial -40 °C to +85 °C operation covers unconditioned enclosures. The Industrial temperature grade supports factory-automation cabinets, while the E/OT variant (PIC10F222T-E/OT) extends operation to +125 °C for under-hood or rooftop fan control.
Recommended
Personal Care & Consumer Appliance Logic
The PIC10F222T-I/OT serves as the auxiliary timing/control brain in toothbrushes, shavers, and small kitchen appliances where the main SoC is overkill. Its 8-bit PWM drives vibration motors or low-power solenoids, while the 8-bit ADC monitors battery voltage on GP2 for low-battery cutoff. The 33 single-cycle RISC instructions let engineers implement mode buttons, sleep timers, and charging-state LEDs in firmware under 512 words of Flash. This keeps the BOM below USD 1.50 while adding programmable differentiation across SKUs.
Recommended
IoT Edge Sensor / Smart-Home Node
The PIC10F222T-I/OT fits the lowest tier of IoT edge nodes where a few sensor reads and a single actuator PWM are sufficient. The 8-bit ADC handles occupancy, light, or gas-sensor analog front-ends on GP0-GP2, while 768 B Flash holds simple MQTT-SN or LoRaWAN commissioning payloads. Combined with a sub-GHz or BLE companion module, it can run for years on AA cells thanks to nanoWatt standby. The SOT-23-6 form factor fits inside wall-switch boxes and door/window sensor housings.
Recommended
Automotive Interior LED Lighting & Indicators
Although not AEC-Q100 qualified by default, the PIC10F222T-I/OT is widely used in non-safety automotive interior accessories such as ambient lighting strips, puddle lamps, and aftermarket indicators. The 8-bit PWM on GP0 provides smooth fade-in/fade-out animation at frequencies above 200 Hz (well above the flicker-fusion threshold), while the ADC reads a potentiometer for brightness adjustment. For under-hood or engine-bay applications requiring +125 °C operation, the PIC10F222T-E/OT extended-temperature variant is the recommended drop-in upgrade within the same SOT-23-6 footprint.
Recommended
Recommended Products Summary
Engineering reference data for PIC10F222T-I/OT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC10F222T-E/OT | PIC10F220T-I/OT | PIC10F202T-I/OT | PIC10F200T-I/OT | PIC10F320T-I/OT |
|---|---|---|---|---|---|---|
| Package | SOT-23-6 | SOT-23-6 - same | SOT-23-6 - same | SOT-23-6 - same | SOT-23-6 - same | SOT-23-6 - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Program Memory | 768 B | 768 B | 768 B | 512 B (-33%) | 256 B (-67%) | 1 KB (+33%) |
| Data RAM | 16 B | 16 B | 16 B | 16 B | 16 B | 64 B (+300%) |
| ADC | 8-bit, 3 channels | 8-bit, 3 channels | None | None | None | 8-bit, 4 channels (+1) |
| PWM | 1 x 8-bit | 1 x 8-bit | None | None | None | 2 x 16-bit (upgrade) |
| Operating Temperature | -40 °C to +85 °C (Industrial) | -40 °C to +125 °C (Extended) | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C |
| Core | PIC10 Base-Line (8-bit, 33 instructions) | PIC10 Base-Line (same) | PIC10 Base-Line (same) | PIC10 Base-Line (same) | PIC10 Base-Line (same) | PIC16 Enhanced Mid-Range (different core) |
| Approx. 1-pc price (USD) | 0.96 | 1.10 (+15%) | 0.85 (-11%) | 0.80 (-17%) | 0.75 (-22%) | 1.05 (+9%) |
Key Differentiators
- PWM + ADC in a 6-pin SOT-23-6 (vs PIC10F220T-I/OT)
- Industrial temperature with nanoWatt standby (vs PIC10F200T-I/OT)
- Functional upgrade path without PCB change (vs PIC10F320T-I/OT)
Design Notes
Place a 0.1 µF X7R ceramic decoupling capacitor within 5 mm of the VDD pin (pin 1) and connect the ground side directly to the VSS pin (pin 6) with a wide trace. For VDD rails above 5.5 V (e.g., 12 V automotive bus), add a series resistor of at least 470 Ω or a Zener clamp to keep VDD below absolute-maximum 6.5 V. The PIC10F222T-I/OT does NOT include an internal brown-out reset (BOD) by default; enable it in configuration bits for robust cold-start behavior below 2.0 V.
Pin 5 (GP3) is input-only and open-drain, not a bidirectional GPIO like the other three pins. Driving it as an output can damage the part. Also, GP3 doubles as MCLR; an external pull-up is required for normal operation, and a low-going pulse on this pin during ICSP enters programming mode. If your circuit drives GP3 low at power-up, the MCU will not exit reset.
When using the internal 4 MHz RC oscillator for ADC conversions, allow at least 10 µs settling time after waking from sleep before starting the ADC; the on-chip ADC clock is derived from the system oscillator. For high-impedance analog sources (>10 kΩ), add an external buffer or increase the ADC acquisition time beyond the default 1.6 µs to avoid 1-2 LSB gain error.
Estimated: At maximum VDD 5.5 V and full GPIO toggling at 8 MHz across all four outputs (worst-case CMOS switching current), the PIC10F222T-I/OT draws about 3 mA, dissipating ~17 mW. With the SOT-23-6 thermal resistance θJA around 200 °C/W (JEDEC EIA/JESD51-3 2s2p board), the junction temperature rises only ~3 °C above ambient - well within the -40 °C to +85 °C Industrial rating. No special thermal management is required.
Keep the GP0-GP2 traces short and routed away from switching nodes such as relays or PWM-driven MOSFETs. Place the ICSP header footprint (5 V, ICSPCLK on GP1, ICSPDAT on GP0, VSS) near the MCU so production programmers can reach all signals without fly-wires. If GP3 is used as MCLR, do NOT place a capacitor directly on it - this slows the MCLR rise time and prevents exit from reset.
Compliance Information
RoHS and lead-free compliant per Microchip product page. Not AEC-Q100 qualified by default - choose PIC10F222T-E/OT for +125 °C operation but still not AEC-Q100. Halogen-free status not stated on the verified source.
