PIC16F873A-I/SO Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip PIC16F873A-I/SO is an 8-bit PIC16 microcontroller running up to 20MHz with integrated ADC, operating from 4V to 5.5V supply. It comes in a 28-pin SOIC package with rich peripherals suited for embedded control. Available from stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- NOT RECOMMENDED
- Datasheet
- PIC16F873A-I/SO Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $5.0637(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 PIC16F873A-I/SO?
- 8-bit PIC16 core at up to 20MHz with integrated ADC for on-chip analog signal acquisition
- Wide 4V–5.5V supply range enables direct use with standard 5V systems and regulated 4V battery packs
- 28-pin SOIC package with hardware UART, SPI, and I2C peripherals for diverse communication needs
What is PIC16F873A-I/SO used for?
The PIC16F873A-I/SO is a proven choice for industrial control panels, home automation modules, and smart sensor nodes that require reliable 8-bit processing with on-chip ADC conversion. Its 20MHz CPU and rich peripheral set make it effective for motor control, HVAC monitoring, and energy metering applications. The SOIC-28 footprint simplifies PCB layout for medium-density designs where through-hole alternatives are no longer preferred.
What are the specifications of PIC16F873A-I/SO?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-28 |
| Factory Lead Time | 6Weeks |
| Date Of Intro | 1998-12-01 |
| YTEOL | 3 |
| Has ADC | YES |
| Additional Feature | OPERATES AT 4 V MINIMUM SUPPLY |
| 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-PDSO-G28 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of External Interrupts | 1 |
| Number of I/O Lines | 22 |
| Number of Timers | 3 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 14 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP28,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 192 |
| RAM (words) | 192 |
| ROM (words) | 4096 |
| ROM Programmability | FLASH |
| Speed | 20MHz |
| Supply Current-Max | 15mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 5V |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Thailand |
Where can I find the PIC16F873A-I/SO datasheet?
PIC16F873A-I/SO Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for PIC16F873A-I/SO?
Compatible alternatives and drop-in replacements for PIC16F873A-I/SO:
RISC Microcontroller, 8-Bit, FLASH, PIC16 CPU, 20MHz, CMOS, PDSO28
RISC Microcontroller, 8-Bit, FLASH, PIC16 CPU, 20MHz, CMOS, PDSO28
RISC Microcontroller, 8-Bit, FLASH, PIC16 CPU, 20MHz, CMOS, PDSO28
Frequently Asked Questions
What is the CPU speed and architecture of the PIC16F873A-I/SO?
The PIC16F873A-I/SO features an 8-bit PIC16 RISC CPU operating at up to 20MHz clock frequency, delivering up to 5 MIPS throughput for control-intensive embedded applications.
Does the PIC16F873A-I/SO include an analog-to-digital converter?
Yes, the PIC16F873A-I/SO includes an integrated ADC, allowing direct digitization of analog sensor signals without requiring an external ADC, reducing system cost and component count in measurement and control designs.
What is the supply voltage range for the PIC16F873A-I/SO?
The PIC16F873A-I/SO operates from a minimum supply of 4V up to 5.5V, making it compatible with standard 5V regulated power supplies commonly used in industrial and consumer embedded systems.
What package and pin count does the PIC16F873A-I/SO use?
The PIC16F873A-I/SO is packaged in a 28-pin SOIC (Small Outline IC) corresponding to the manufacturer package code SOIC-28, offering a compact surface-mount format that is easy to solder and compatible with automated assembly.
What communication interfaces are available on the PIC16F873A-I/SO?
The PIC16F873A-I/SO provides hardware support for USART serial communication, SPI, and I2C (via the MSSP module), enabling straightforward connectivity with sensors, displays, EEPROMs, and other MCUs or host processors.
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+ | $5.0637 | $5.06 |
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