C8051F536-IT Equivalent & Substitute Parts

Part Overview

The C8051F536-IT is an 8-bit microcontroller from Silicon Labs' C8051F53x series, featuring a 25MHz 8051 core with 2KB FLASH program memory and 256 bytes of RAM. This device integrates LINbus, SPI, and UART/USART connectivity alongside peripheral functions including brown-out detection, PWM, temperature sensing, and watchdog timer capabilities. The part is classified as obsolete, making identification of compatible substitutes essential for ongoing system support and new design implementations.

Substiute Parts

C8051F536-IT

Silicon LabsIn Stock: 847C8051F536-IT Datasheet

Current PartRFQ

C8051F536A-IT

Silicon LabsIn Stock: 855C8051F536A-IT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the C8051F536-IT is determined by strict equivalence across core functional parameters: identical 8051 processor architecture, 8-bit core size, 25MHz clock speed, 2KB FLASH memory capacity, 256-byte RAM configuration, 16 I/O pins, matching peripheral feature set (LINbus, SPI, UART/USART, brown-out detection, PWM, temperature sensor, watchdog timer), 16x12-bit A/D converter specification, and 20-TSSOP surface-mount package format. Voltage supply range variations within the 1.8V to 5.25V envelope are permissible provided the minimum operating voltage meets or exceeds the original specification. The C8051F536A-IT qualifies as a direct substitute based on full alignment with these parameters.

Parameter Comparison

Engineering Selection Recommendations

The C8051F536A-IT serves as the direct functional equivalent to the obsolete C8051F536-IT. Both devices share identical processor architecture, memory configuration, I/O count, peripheral feature set, and package specifications. The C8051F536A-IT maintains active product status with verified programmability support, providing supply continuity for applications currently using the C8051F536-IT. The extended voltage supply range of the C8051F536A-IT (1.8V minimum versus 2V minimum) provides additional operational flexibility without compromising compatibility. Both parts carry identical ECCN and HTSUS classifications, confirming regulatory equivalence.

Frequently Asked Questions (FAQ)

Q: Can the C8051F536A-IT replace the C8051F536-IT in existing designs?

A: Yes. The C8051F536A-IT is functionally equivalent across all core parameters: processor type, memory capacity, I/O configuration, peripheral feature set, clock speed, and package format. The extended lower voltage limit (1.8V versus 2V) does not restrict compatibility in applications operating at or above 2V.

Q: What is the primary difference between these two parts?

A: The C8051F536-IT is classified as obsolete, while the C8051F536A-IT maintains active product status. The C8051F536A-IT features an extended voltage supply range (1.8V ~ 5.25V versus 2V ~ 5.25V) and carries a higher moisture sensitivity level (MSL 3 versus MSL 1).

Q: Are the package dimensions identical?

A: Yes. Both parts use the 20-TSSOP surface-mount package with identical dimensions of 0.173" width and 4.40mm overall width.

Q: Does the C8051F536A-IT require different PCB layout or design considerations?

A: No. The identical package format, pin count, and electrical specifications eliminate the need for PCB redesign or layout modifications.

Q: What is the inventory status for these parts?

A: The C8051F536-IT has 788 pieces in stock (obsolete status). The C8051F536A-IT has 749 pieces in stock with active product status.