PIC16F874A-I/P Equivalent & Substitute Parts

Part Overview

The PIC16F874A-I/P is an 8-bit microcontroller from Microchip Technology's PIC® 16F series, designed for embedded applications requiring moderate processing capability and integrated peripherals. This device features 7KB of FLASH program memory, 192 bytes of RAM, and 128 bytes of EEPROM, with support for I2C, SPI, and UART/USART connectivity. The part is currently in active production status with verified programmability through DiGi-Electronics. Substitute parts are identified when equivalent electrical and mechanical specifications allow direct functional replacement in circuit designs.

Substiute Parts

PIC16F874A-I/P

Microchip TechnologyIn Stock: 2330PIC16F874A-I/P Datasheet

Current PartRFQ

PIC16F874-20I/P

Microchip TechnologyIn Stock: 2211PIC16F874-20I/P Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PIC16F874A-I/P are identified based on strict equivalence across all critical electrical and mechanical parameters. The substitution logic is based on the following key parameters that must remain identical:

• Core processor architecture (PIC)
• Core size (8-Bit)
• Operating speed (20MHz)
• Program memory capacity and type (7KB FLASH, 4K x 14)
• RAM and EEPROM sizes (192 x 8 and 128 x 8 respectively)
• Supply voltage range (4V ~ 5.5V)
• I/O count (33 pins)
• Peripheral feature set (Brown-out Detect/Reset, POR, PWM, WDT)
• Data converter specifications (A/D 8x10b)
• Connectivity protocols (I2C, SPI, UART/USART)
• Operating temperature range (-40°C ~ 85°C)
• Physical package (40-DIP, 0.600", 15.24mm)
• Compliance certifications (ROHS3, MSL 1)

Parts meeting these criteria are classified as parametric equivalents and direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

Both the PIC16F874A-I/P and PIC16F874-20I/P are active production devices from Microchip Technology with identical electrical and mechanical specifications. Selection between these parts may be based on inventory availability and supplier device package designation. Both parts maintain ROHS3 compliance, REACH unaffected status, and MSL 1 rating, ensuring compatibility with standard manufacturing and storage requirements. The parts are suitable for direct substitution in applications where the PIC16F874A-I/P is specified.

Frequently Asked Questions (FAQ)

Q: Can PIC16F874-20I/P replace PIC16F874A-I/P in existing designs?

A: Yes. Both parts share identical electrical specifications, memory configurations, peripheral features, operating temperature range, and 40-DIP package dimensions. Direct substitution is supported without circuit modification.

Q: Are there differences in programming or firmware compatibility?

A: No differences exist. Both parts use the same PIC core architecture, FLASH memory organization (4K x 14), and peripheral feature set. Firmware compiled for one part executes identically on the other.

Q: What is the significance of the part number suffix differences?

A: The suffix variations (A-I/P versus -20I/P) reflect Microchip's internal designation scheme but do not indicate functional differences in the parameters specified for this product category. Both parts meet identical electrical and mechanical requirements.

Q: Are both parts available in the same packaging format?

A: Yes. Both parts are supplied in 40-PDIP (40-DIP, 0.600", 15.24mm) through-hole packaging with identical pin configurations and spacing.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, carry MSL 1 rating, and share the same ECCN (EAR99) and HTSUS (8542.31.0001) classifications.

Q: Can these parts be used interchangeably in production?

A: Yes. Identical specifications across all electrical, mechanical, and compliance parameters support interchangeable use in manufacturing and assembly processes.