PIC10F202T-I/OT - 8-Bit MCU, 768B Flash, 4MHz, SOT-23-6 | Microchip
MPN: PIC10F202T-I/OT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.85 | $0.85 |
| 10 | $0.74 | $7.40 |
| 100 | $0.6 | $60.00 |
| 500 | $0.49 | $245.00 |
| 1,000 | $0.42 | $420.00 |
| 3,000 | $0.35 | $1,050.00 |
PIC10F202T-I/OT Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, RAM, peripherals, and I/O on one silicon die. The PIC10F202 belongs to the 8-bit microcontroller category, using a RISC architecture with 33 single-word/single-cycle instructions. Within the broader taxonomy, the PIC10F202 sits under 8-bit MCU -> microcontroller -> embedded controller -> semiconductor IC, occupying the cost-optimized end of the embedded-control market where PCB area and BOM cost dominate design decisions over raw compute performance.
Key features include 4 MHz operation (1 µs instruction cycle at 4 MHz FOSC), 2.0V to 5.5V wide operating voltage range, ultra-low power consumption suitable for battery applications, an 8-bit timer/counter (TMR0), a watchdog timer (WDT) with on-chip RC oscillator, in-circuit serial programming (ICSP) via two pins, and 4 bidirectional I/O pins (GP0-GP3). The SOT-23-6 package measures approximately 2.9 mm × 1.6 mm with a max height of 1.0 mm, making it one of the smallest microcontrollers available for mass-production designs.
Technical depth: The PIC10F202's RISC core executes one instruction per clock cycle (except branches, which take two), and the 12-bit instruction word yields typical 2:1 code compression versus competing 8-bit CISC architectures. Internal oscillator accuracy is calibrated to within ±1% (typical) at 25°C/5V, eliminating external crystal components and freeing all 6 pins for user I/O or programming.
Typical applications include low-cost consumer device logic replacement (discrete logic-to-MCU migration), LED blinkers, simple sensor interfaces, battery-powered toys, and any high-volume cost-sensitive embedded control task. Industrial -40°C to +85°C temperature range supports factory automation peripherals.
When designing with this part, always include a 0.1 µF decoupling capacitor as close to VDD as possible, keep GP0 and GP1 traces short for reliable ICSP programming in-circuit, and verify unused-pin configuration (GP3 is input-only, no output driver). Programming requires Microchip's MPLAB X IDE with PICkit or ICD tool support.
This page synthesizes distributor stock levels, drop-in alternatives, and design considerations not aggregated on the manufacturer datasheet alone.
Drop-in alternatives for PIC10F202T-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 PIC10F202T-I/OT (same form factor and footprint) — differing in CPU Speed, Core Architecture, I/O Pins, Instruction Set, MSL Level.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC10F200T-I/OT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC10F204T-I/OT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC10F206T-I/OT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC10F202T-I/OTVAO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC10F202T-I/OT Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC RISC |
| Program Memory (Flash) | 768 bytes (512 x 12 words) |
| Data Memory (SRAM) | 24 bytes |
| CPU Speed | 4 MHz (1 µs instruction cycle) |
| Operating Voltage Range | 2.0 V to 5.5 V |
| I/O Pins | 4 (GP0, GP1, GP2, GP3) |
| Timers | 8-bit Timer/Counter (TMR0) + WDT |
| Internal Oscillator | 4 MHz ±1% (calibrated, typical) |
| Instruction Set | 33 single-word instructions |
| Operating Temperature | -40 °C to +85 °C (Industrial) |
| Package | SOT-23-6 (OT suffix, tape & reel) |
| Mounting Type | Surface Mount |
| MSL Level | 1 (unlimited floor life at ≤30 °C / 85 % RH) |
| RoHS Status | Compliant |
| Programming Interface | ICSP via GP0/GP1 (2-wire) |
PIC10F202T-I/OT Pin Configuration
| Pin 1 | GP3 — Bidirectional I/O (input-only, no output driver) / MCLR optional |
| Pin 2 | VDD — Positive power supply (2.0 V to 5.5 V) |
| Pin 3 | VSS — Ground reference |
| Pin 4 | GP2 — Bidirectional I/O / T0CKI timer clock input / comparator output |
| Pin 5 | GP1 — Bidirectional I/O / ICSPCLK programming clock |
| Pin 6 | GP0 — Bidirectional I/O / ICSPDAT programming data / comparator input |
Typical Applications
PIC10F202T-I/OT is suitable for 6 applications: Discrete Logic-to-MCU Replacement, Battery-Powered LED Blinker / Indicator, Simple Sensor Interface / Threshold Detector, Consumer Toy / Hobby Electronics Controller, Industrial Status / Alarm Module, Cost-Optimized Wearable / Personal Electronics.
Discrete Logic-to-MCU Replacement
The PIC10F202T-I/OT replaces discrete logic gates, latches, and 555 timers in low-cost consumer products. Its 768-byte Flash stores sequence tables for timing/mode logic, the 4 MHz internal oscillator generates precise delays via TMR0, and the 4 GPIO pins drive LEDs, relays, or transistor switches directly. The 6-pin SOT-23-6 footprint drops onto a 2.9 × 1.6 mm land pattern - smaller than most SOIC-8 logic gates - reducing PCB area by 50–70% in glue-logic positions. Low sleep current (<1 µA at 3 V) enables battery-operated logic replacement that discrete 555 timers cannot match.
Recommended
Battery-Powered LED Blinker / Indicator
The PIC10F202T-I/OT is a natural fit for battery-powered LED blinkers where its sub-1 µA sleep current extends coin-cell life from months to years. The internal 4 MHz oscillator (no external crystal) keeps the BOM to MCU + LED + current-limit resistor + battery, while TMR0 generates accurate blink intervals with 1 µs resolution at 4 MHz. The 2.0–5.5 V VDD range accepts both 3 V coin cells and 4.5 V battery packs. Watchdog timer with dedicated RC oscillator provides autonomous wake-up without external components, enabling 100% duty-cycled sleep for maximum battery life.
Recommended
Simple Sensor Interface / Threshold Detector
The PIC10F202T-I/OT's integrated analog comparator makes it ideal for low-cost threshold detection (light, voltage, temperature via thermistor). The comparator references an internal bandgap or external pin, and its output triggers interrupts that wake the MCU from sleep - consuming <1 µA until threshold crossing. The SOT-23-6 footprint is small enough to fit inside sensor housings, eliminating separate signal-conditioning boards. Industrial -40 °C to +85 °C range covers outdoor sensor applications.
Recommended
Consumer Toy / Hobby Electronics Controller
The PIC10F202T-I/OT drives low-cost consumer toys where unit price is the dominant constraint and BOM count must be minimal. Its 768-byte Flash stores sound patterns, motor sequences, and light shows; 4 GPIO pins drive 2–4 LEDs, a buzzer, or a vibration motor via transistors. The ICSP interface allows firmware updates on production-line boards without a bootloader, cutting per-unit programming cost. Wide 2.0–5.5 V VDD accepts alkaline or Li-Ion battery packs. The 1 µs instruction cycle supports real-time response to button inputs.
Recommended
Industrial Status / Alarm Module
The PIC10F202T-I/OT's industrial -40 °C to +85 °C temperature range suits factory-floor status indicators and alarm modules where reliability matters more than feature density. The internal 4 MHz oscillator (±1% calibrated) provides accurate timing for alarm intervals, watchdog timer detects MCU lockup and triggers safe-state outputs, and the wide 2.0–5.5 V input tolerates 24 V industrial rails after regulation. The SOT-23-6 footprint fits in DIN-rail status housings where PCB area is at a premium.
Recommended
Cost-Optimized Wearable / Personal Electronics
The PIC10F202T-I/OT fits ultra-compact wearable devices where the 2.9 × 1.6 mm SOT-23-6 footprint is critical. With 4 GPIO pins and sub-1 µA sleep current, it handles button-press detection, LED driving, and simple haptic feedback while consuming negligible battery budget. The 2.0 V minimum VDD lets the device run on partially-depleted coin cells that would brown-out larger MCUs. The integrated comparator can monitor battery voltage directly, eliminating an external voltage detector IC.
Recommended
Recommended Products Summary
Engineering reference data for PIC10F202T-I/OT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC10F200T-I/OT | PIC10F204T-I/OT | PIC10F206T-I/OT |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SOT-23-6 | SOT-23-6 (same) | SOT-23-6 (same) | SOT-23-6 (same) |
| Flash Program Memory | 768 bytes | 375 bytes | 512 bytes | 1024 bytes |
| SRAM | 24 bytes | 16 bytes | 24 bytes | 24 bytes |
| CPU Speed | 4 MHz | 4 MHz | 4 MHz | 4 MHz |
| Operating Voltage | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V |
| Comparator | Yes | No | Yes | Yes |
| ADC | No | No | No | Yes (8-bit, 2-ch) |
Key Differentiators
- Larger Flash than PIC10F200T-I/OT with same SOT-23-6 footprint (vs PIC10F200T-I/OT)
- Includes analog comparator peripheral (vs PIC10F200T-I/OT)
- Lower unit cost than PIC10F206T-I/OT for non-ADC designs (vs PIC10F206T-I/OT)
Design Notes
Place a 0.1 µF decoupling capacitor as close as physically possible to the VDD pin (Pin 2) of the PIC10F202T-I/OT, with traces no longer than 5 mm to minimize parasitic inductance. The SOT-23-6 package dissipates minimal power but the 4 MHz internal oscillator generates high-frequency switching noise that benefits from local bypass. A 10 µF bulk capacitor at the board level handles load transients during GPIO switching.
GP0 (ICSPDAT) and GP1 (ICSPCLK) traces must be kept short and isolated from switching signals to ensure reliable in-circuit serial programming on production boards. Add 4.7 kΩ pull-up resistors to VDD on GP0 and GP1 if long cable runs are used during programming. GP3 is input-only and must not be configured as an output in firmware - setting TRIS incorrectly on GP3 will cause unexpected behavior on the pin.
Estimated: typical sleep current at 3 V / 25 °C is below 1 µA per the Microchip PIC10F202 datasheet electrical characteristics table. Active current at 4 MHz / 5 V is approximately 350 µA. When sizing battery life, factor in duty cycle carefully: a 100 ms-active-per-second duty cycle yields roughly 35 µA average current, draining a 220 mAh coin cell in approximately 8 months. Use Sleep mode + WDT wake-up or GPIO change interrupts to minimize active time.
Do not exceed the absolute maximum VDD of 6.5 V or ESD ratings on any pin (per datasheet). GP3 is input-only and cannot source or sink current - using it as an LED driver will damage the pin. When programming with ICSP, ensure no low-impedance loads on GP0/GP1 prevent proper line driving. Configuration word settings (oscillator, WDT, code protection) must be set correctly in source code before assembly - once programmed, they require full chip erase to change.
Compliance Information
RoHS compliant per Microchip product page; lead-free SOT-23-6 packaging (OT suffix). MSL 1 moisture sensitivity rating. Not AEC-Q100 qualified - choose VAO automotive variants for automotive applications.
