PIC12C671-04/P Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
Microchip PIC12C671-04/P is an 8-bit CMOS microcontroller with on-chip analog-to-digital converter in an 8-pin DIP package. Runs up to 4 MHz with 1024 words of OTP program memory, 4 ADC input channels, and 5 I/O pins. Available from distributors with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- NOT RECOMMENDED
- Datasheet
- PIC12C671-04/P Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Integrated 8-channel 8-bit ADC enables direct sensor digitization in an 8-pin DIP MCU without external converter ICs
- 4 MHz maximum clock frequency with RISC instruction set executing most instructions in a single 250 ns cycle
- 8-pin PDIP through-hole package ideal for prototyping, manual rework, and low-volume custom control boards
- OTP program memory provides one-time programmable code protection for cost-sensitive consumer and appliance applications
Applications
PIC12C671-04/P is used in small appliance control circuits, toy electronics, and custom sensor interfaces where a minimal 8-pin MCU with built-in ADC is sufficient to replace discrete logic. Legacy industrial equipment and home automation accessories with fixed firmware leverage its OTP memory for permanent code storage without ongoing flash management. It also serves in simple battery charger controllers, LED dimmers, and motor speed regulators requiring only a few I/O lines and analog inputs.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | PDIP-8 |
| Factory Lead Time | 8Weeks |
| Date Of Intro | 1997-03-24 |
| YTEOL | 3 |
| Has ADC | YES |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | PIC12 |
| Clock Frequency-Max | 4MHz |
| DAC Channels | NO |
| DMA Channels | NO |
| JESD-30 Code | R-PDIP-T8 |
| JESD-609 Code | e3 |
| Number of I/O Lines | 6 |
| On Chip Program ROM Width | 14 |
| PWM Channels | NO |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP8,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| RAM (bytes) | 128 |
| ROM (words) | 1024 |
| ROM Programmability | OTPROM |
| Screening Level | TS 16949 |
| Speed | 4MHz |
| Supply Current-Max | 5mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 5V |
| Supply Voltage-Nom | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PIC12C671-04/P:
RISC Microcontroller, 8-Bit, OTPROM, PIC12 CPU, 4MHz, CMOS, PDIP8
RISC Microcontroller, 8-Bit, OTPROM, PIC12 CPU, 4MHz, CMOS, PDIP8
Frequently Asked Questions
How much program memory and data RAM does PIC12C671-04/P provide for small embedded control applications?
PIC12C671-04/P has 1024 words of OTP program memory and 128 bytes of data RAM, which is sufficient for simple state machine firmware, sensor polling routines, and PWM generation loops running at 4 MHz. The 14-bit wide instruction words fit up to 1024 instructions, covering most appliance and sensor control tasks.
How many analog input channels does the PIC12C671-04/P ADC support, and what is its resolution?
The built-in ADC has 4 multiplexed input channels with 8-bit resolution, producing values from 0 to 255 for inputs between VSS and VDD. At 4 MHz clock this allows roughly 77 ksps conversion rates, adequate for reading temperature sensors, potentiometers, and light sensors in consumer appliance and toy applications.
What package does PIC12C671-04/P use, and how does the 8-pin DIP suit manual prototyping?
PIC12C671-04/P comes in an 8-pin 0.3-inch wide PDIP package with 2.54 mm pin pitch, which fits standard breadboards and universal prototype PCBs directly. The through-hole format allows easy hand soldering and removal for development, making it popular for small-batch custom controllers and educational projects despite being introduced in 1997.
Is PIC12C671-04/P still a practical choice for new designs, or should engineers prefer a more modern PIC12F device?
For new designs, the PIC12F series (e.g., PIC12F675) is generally preferred because it offers flash reprogrammable memory versus the OTP memory of PIC12C671-04/P, allowing firmware updates after manufacturing. However, PIC12C671-04/P remains valid for cost-sensitive production runs with frozen firmware, leveraging its 8-bit ADC, 4 MHz clock, and 5 I/O pins in proven legacy designs.
Related Guides
How to Choose a USB Controller: Certification, Integration, and SDK Quality Compared Across Microchip, STMicroelectronics, NXP, TI, and Renesas
Compare USB controllers from Microchip, STM, NXP, TI, and Renesas across certification difficulty, integration ease, and documentation/SDK quality to choose the right IC for your design.
May 28, 2026
ADAU1361BCPZ Application Note: Audio Codec Design Guide for Embedded Systems
Complete design guide for the ADAU1361BCPZ stereo 96kHz/24-bit audio codec: power supply filtering, PLL startup sequence, PCB layout, SigmaDSP integration, and troubleshooting.
May 28, 2026
LM66100QDCKRQ1 Design Guide: Ideal Diode and Reverse Polarity Protection for Automotive Power Rails
Complete application note for the LM66100QDCKRQ1 AEC-Q100 ideal diode controller: PMOS selection, threshold tuning, RPP integration, layout, and automotive design pitfalls.
May 28, 2026
LM2904BQDGKRQ1 Selection Guide: Automotive Dual Op-Amp Variants, Packages, and Alternatives
How to choose the right LM2904BQ automotive dual op-amp variant: AEC-Q100 grade, offset voltage, package, and non-automotive alternatives explained.
May 27, 2026
Why Buy from FindMyChip
About Microchip
Microchip is a leading electronic component manufacturer. FindMyChip sources Microchip ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
More from Microchip
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“FindMyChip sourced our entire STM32 BOM in 48 hours when our usual distributor had 16-week lead times.”