PIC12C671-04/SM

PIC12C671-04/SM is an 8-pin Microchip PIC12C OTP microcontroller in a small-outline (SOIC) package. It uses an 8‑bit CPU with 14‑bit wide instructions and sits in the PIC12C family (one-time programmable program memory).
Key features (typical):
- Program memory: about 1K words (OTP)
- RAM: small data memory for variables
- I/O: 6 I/O pins available in the 8-pin package
- Peripherals: basic timer (Timer/Counter), watchdog timer, MCLR input, internal oscillator option
- Voltage and operation: Vdd ~ 2.0–5.5 V
- In-circuit programming: supports ICSP
- Package suffix -04/SM indicates 8-pin SOIC, RoHS-compliant
Common use: simple, low-pin-count control tasks (LED drivers, sensors, small automation) where a low-cost, single-purpose MCU is suitable. For exact memory sizes, peripherals, and electrical specs, consult the PIC12C671 datasheet.

There isn’t a direct pin-for-pin equivalent. The closest Microchip 8‑pin PIC12 substitutes are:
- PIC12C508A/509
- PIC12F508/509
- PIC12F629
- PIC12F675
Note: memory, peripherals, and timing differ. “-SM” denotes the SOIC package. Use Microchip’s datasheets or cross-reference tool to pick the best match for your design.

- Pin count: 8 pins (DIP-8 / SOIC-8, suitable for -SM package).
- Function: PIC12C671-based 8‑bit microcontroller with 1K × 14 EPROM program memory, 64 × 8 RAM, and a 5‑bit I/O port (GP0, GP1, GP2, GP4, GP5) plus GP3 used as MCLR/Vpp. Features include internal oscillator, Timer0, Watchdog Timer, interrupts, and basic I/O for small control tasks.

Manufacturer: Microchip Technology Inc.
What kind of company: A global semiconductor company that designs, develops, manufactures, and sells microcontrollers, memory, and analog integrated circuits for embedded systems.

Typical applications of PIC12C671-04/SM (8-pin, low-cost digital controller):
- Consumer electronics: appliance controllers, LED indicators/desplays
- Relay/switch driving and small actuator control
- Timers, sequencing, and simple state-machine logic
- Keyboard/remote-control scanning and digital input handling
- Security and alarm sensors, small monitoring modules
- Toy, hobbyist, and educational development projects
- Cost-sensitive automotive/industrial control requiring basic digital I/O

An 8‑pin surface‑mount package: SOIC (Small Outline Integrated Circuit). The /SM suffix denotes surface-mount packaging.