PIC16LF874-04I/P Equivalent & Substitute Parts

Part Overview

The PIC16LF874-04I/P is an 8-bit microcontroller from Microchip Technology's PIC® 16F series, designed for embedded applications requiring low-power operation and moderate processing capability. This device features 7KB of FLASH program memory, 192 bytes of RAM, and 128 bytes of EEPROM, with integrated communication interfaces including I2C, SPI, and UART/USART. The part is currently in active production status with verified programmability through DiGi-Electronics. Substitute parts are identified when design requirements change regarding operating speed, package format, memory capacity, or pin count while maintaining core functional compatibility.

Substiute Parts

PIC16LF874-04I/P

Microchip TechnologyIn Stock: 798PIC16LF874-04I/P Datasheet

Current PartRFQ

PIC16LF874A-I/P

Microchip TechnologyIn Stock: 717PIC16LF874A-I/P Datasheet

DirectRFQ

PIC16F884-I/PT

Microchip TechnologyIn Stock: 18322PIC16F884-I/PT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PIC16LF874-04I/P is determined by the following criteria:

Core Compatibility Parameters:

• 8-Bit PIC core processor architecture
• 7KB (4K x 14) FLASH program memory
• Voltage supply range 2V ~ 5.5V
• I2C, SPI, UART/USART connectivity
• Brown-out Detect/Reset, POR, PWM, WDT peripherals
• Operating temperature range -40°C ~ 85°C
• ROHS3 compliance and REACH unaffected status

Variable Parameters Allowing Substitution:

• Operating speed (4MHz, 10MHz, or 20MHz)
• Package format (40-DIP through-hole or 44-TQFP surface-mount)
• RAM size (192 x 8 or 256 x 8)
• EEPROM size (128 x 8 or 256 x 8)
• Number of I/O pins (33 or 35)
• Data converter resolution (8x10b or 14x10b)
• Oscillator type (external or internal)

Substitutes are valid when the application can accommodate differences in these variable parameters while maintaining the core processor architecture and memory type.

Parameter Comparison

Engineering Selection Recommendations

PIC16LF874A-I/P is a direct substitute when the application requires identical package format (40-DIP through-hole) and pin count (33 I/O) but can operate at higher clock speeds up to 10MHz. This part maintains the same memory configuration and supply voltage range. Both parts carry ROHS3 compliance and MSL-1 rating, indicating equivalent handling and storage requirements.

PIC16F884-I/PT is a substitute when the application can accommodate surface-mount assembly (44-TQFP package) and requires higher processing speed (20MHz) or expanded memory resources (256 x 8 RAM and EEPROM). This part provides additional I/O pins (35 total) and higher-resolution analog conversion (14x10b). The MSL-3 rating requires controlled moisture exposure during storage and assembly. This part includes internal oscillator capability, eliminating the need for external clock circuitry.

All three parts maintain active product status, ROHS3 compliance, and REACH unaffected designation, ensuring regulatory consistency across substitution choices.

Frequently Asked Questions (FAQ)

Q: Can PIC16LF874A-I/P replace PIC16LF874-04I/P in existing designs without PCB modification?

A: Yes. Both parts use identical 40-DIP package format with matching pin assignments and I/O count (33 pins). The primary difference is maximum operating speed (10MHz versus 4MHz). Existing PCB layouts and firmware require no modification. The higher speed rating of the substitute provides backward compatibility with designs operating at 4MHz.

Q: What are the implications of switching to PIC16F884-I/PT?

A: This substitution requires PCB redesign due to package format change from 40-DIP through-hole to 44-TQFP surface-mount. Pin count increases from 33 to 35 I/O pins. Memory capacity increases (256 x 8 RAM and EEPROM versus 192 x 8 and 128 x 8). Firmware may require modification to utilize additional I/O pins and expanded memory. The internal oscillator eliminates external clock components, potentially reducing board complexity.

Q: Are there connectivity differences between these parts?

A: All three parts provide identical I2C, SPI, and UART/USART interfaces. Peripheral features (Brown-out Detect/Reset, POR, PWM, WDT) are consistent across all substitutes.

Q: What is the significance of MSL rating differences?

A: PIC16LF874-04I/P and PIC16LF874A-I/P carry MSL-1 (unlimited moisture sensitivity level), allowing indefinite storage without moisture control. PIC16F884-I/PT carries MSL-3 (168 hours), requiring controlled storage conditions and bake-out procedures before assembly if moisture exposure occurs.

Q: Can firmware written for PIC16LF874-04I/P run on PIC16LF874A-I/P without modification?

A: Yes. Both parts share identical instruction set architecture and memory organization. Code compiled for 4MHz operation will execute on the 10MHz part without modification, though timing-dependent code may require adjustment if the higher speed is utilized.

Q: What determines whether PIC16F884-I/PT is suitable for a given application?

A: Suitability depends on three factors: (1) PCB assembly capability for surface-mount components, (2) application requirement for 20MHz processing speed or expanded memory, and (3) ability to manage MSL-3 moisture sensitivity during manufacturing. If the application operates at 4MHz and requires through-hole mounting, PIC16LF874A-I/P is the appropriate choice.