PIC18F252-I/SP Equivalent & Substitute Parts

Part Overview

The PIC18F252-I/SP is an 8-bit microcontroller from Microchip Technology's PIC® 18F series, featuring 32KB FLASH program memory, 1.5KB RAM, and 256 bytes of EEPROM. This device operates at 40MHz with integrated peripherals including I2C, SPI, and UART/USART connectivity, along with analog-to-digital conversion capabilities. The part is currently in active production status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility allow direct replacement in circuit designs.

Substiute Parts

PIC18F252-I/SP

Microchip TechnologyIn Stock: 3148PIC18F252-I/SP Datasheet

Current PartRFQ

PIC18F2520-I/SP

Microchip TechnologyIn Stock: 5000169PIC18F2520-I/SP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The PIC18F2520-I/SP qualifies as a direct substitute based on the following alignment of critical parameters:

Matching Parameters:

• Core processor architecture (PIC)
• Core size (8-Bit)
• Operating speed (40MHz)
• Program memory capacity (32KB FLASH)
• RAM capacity (1.5K x 8)
• EEPROM capacity (256 x 8)
• Supply voltage range (4.2V ~ 5.5V)
• Operating temperature range (-40°C ~ 85°C)
• Package type (28-DIP)
• Mounting method (Through Hole)
• Compliance certifications (RoHS3, REACH Unaffected)

Functional Enhancements in Substitute: The PIC18F2520-I/SP provides increased I/O count (25 versus 23) and enhanced analog conversion capability (10x10-bit A/D versus 5x10-bit A/D), with internal oscillator support in addition to external oscillator capability.

Parameter Comparison

Engineering Selection Recommendations

Both the PIC18F252-I/SP and PIC18F2520-I/SP maintain active product status with identical RoHS3 compliance and REACH unaffected classification. The devices share identical core memory architecture, operating voltage, temperature range, and physical packaging. Selection between these parts depends on application requirements for I/O count and analog input channels. The PIC18F2520-I/SP provides additional I/O pins (25 versus 23) and doubled analog conversion channels (10x10-bit versus 5x10-bit), making it suitable for applications requiring expanded peripheral access. Both parts are suitable for direct substitution in designs where the additional capabilities of the PIC18F2520-I/SP do not create conflicts with existing circuit constraints.

Frequently Asked Questions (FAQ)

Q: Can PIC18F2520-I/SP replace PIC18F252-I/SP in existing designs?

A: Yes. Both devices share identical core architecture, memory capacity, operating voltage (4.2V ~ 5.5V), speed (40MHz), and 28-DIP package footprint. The PIC18F2520-I/SP provides additional I/O pins and analog channels without reducing compatibility with the original design requirements.

Q: What are the key differences between these parts?

A: The PIC18F2520-I/SP provides 25 I/O pins compared to 23 on the PIC18F252-I/SP, and includes 10 analog input channels (10-bit) versus 5 on the PIC18F252-I/SP. Both support internal and external oscillator modes, though the PIC18F252-I/SP specifies external oscillator operation.

Q: Are the pin assignments identical?

A: Both devices use the 28-DIP package with 0.300" (7.62mm) spacing. Verify pinout documentation for the specific application, as the additional I/O on the PIC18F2520-I/SP may be assigned to previously unused pins.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the PIC18F252-I/SP and PIC18F2520-I/SP are RoHS3 compliant with REACH unaffected status and identical MSL rating (1 - Unlimited).

Q: What is the operating temperature range for both parts?

A: Both devices operate across -40°C to 85°C (TA), suitable for industrial and commercial temperature environments.