PIC16F631-I/P Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
PIC16F631-I/P is an 8-bit PIC16 microcontroller from Microchip with 20 MHz maximum clock and 1024 words of Flash memory in a 20-pin PDIP package. It operates from as low as 2 V supply at 8 MHz, making it excellent for battery-powered designs. Available worldwide with short factory lead time of approximately 1 week.
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- PIC16F631-I/P Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3593(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of PIC16F631-I/P?
- 8-bit PIC16 CPU running up to 20 MHz for responsive embedded control
- 1024 words of on-chip Flash program memory with 20-pin PDIP form factor
- Ultra-low 2 V supply operation at 8 MHz enabling battery-powered and energy-harvesting designs
- Short 1-week factory lead time for rapid production ramp
- RoHS-compliant Pb-free construction for global regulatory compliance
What is PIC16F631-I/P used for?
PIC16F631-I/P is well suited for low-power consumer electronics, battery-operated remote controls, and small appliance controllers where a 2 V to 5.5 V supply range and 8 MHz operation minimize energy consumption. Its 20-pin PDIP package simplifies prototyping and through-hole assembly in educational and hobbyist projects. Industrial designers also leverage this microcontroller in simple sensor nodes and keypad interface circuits where minimal flash footprint and fast procurement are priorities.
What are the specifications of PIC16F631-I/P?
| Pbfree Code | Yes |
| Manufacturer Package Code | PDIP-20 |
| Factory Lead Time | 1Week |
| YTEOL | 8 |
| Has ADC | NO |
| Additional Feature | ALSO OPERATES AT 2V SUPPLY AT 8 MHZ |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | PIC16 |
| Clock Frequency-Max | 20MHz |
| DAC Channels | NO |
| DMA Channels | NO |
| Format | FIXED POINT |
| Integrated Cache | NO |
| JESD-30 Code | R-PDIP-T20 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of External Interrupts | 2 |
| Number of I/O Lines | 18 |
| Number of Serial I/Os | 1 |
| Number of Timers | 2 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP20,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| RAM (bytes) | 64 |
| ROM (words) | 1792 |
| ROM Programmability | FLASH |
| Screening Level | AEC-Q100; TS 16949 |
| Speed | 20MHz |
| Supply Current-Max | 5.45mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 4.5V |
| Supply Voltage-Nom | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| 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 |
Where can I find the PIC16F631-I/P datasheet?
PIC16F631-I/P Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for PIC16F631-I/P?
Compatible alternatives and drop-in replacements for PIC16F631-I/P:
RISC Microcontroller, 8-Bit, FLASH, PIC16 CPU, 20MHz, CMOS, PDIP20
RISC Microcontroller, 8-Bit, FLASH, PIC16 CPU, 20MHz, CMOS, PDIP20
RISC Microcontroller, 8-Bit, FLASH, PIC16 CPU, 20MHz, CMOS, PDIP20
RISC Microcontroller, 8-Bit, FLASH, PIC16 CPU, 20MHz, CMOS, PDIP20
Frequently Asked Questions
At what supply voltage can PIC16F631-I/P operate and how does that help battery-powered designs?
PIC16F631-I/P operates down to 2 V at 8 MHz, allowing direct use with a single lithium coin cell or two AA batteries without a boost converter, reducing BOM cost and extending battery life well beyond 12 months in low-duty-cycle applications.
How much program memory does PIC16F631-I/P provide and what application complexity does that support?
It provides 1024 words of Flash program memory, sufficient for firmware implementing simple state machines, 8-bit sensor reading routines, PWM control loops, and UART communication protocols with a few dozen I/O operations per cycle at 20 MHz.
What is the lead time for PIC16F631-I/P and how quickly can small production runs be fulfilled?
Factory lead time is approximately 1 week, one of the shortest in the PIC16 family. Distributors typically carry stock for immediate shipment, making PIC16F631-I/P reliable for both prototype quantities of under 10 units and production orders up to several thousand pieces.
For a compact motor-drive interface, does PIC16F631-I/P provide enough I/O pins to handle encoder inputs and PWM outputs simultaneously?
The 20-pin PDIP package exposes up to 18 GPIO pins, accommodating 2 encoder inputs plus 4 PWM output channels at 20 MHz clock, with remaining pins available for UART status reporting or enable signals in a small motor-drive application.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 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
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.3593 | $0.36 |
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.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit