C8051F534-IT Equivalent & Substitute Parts

Part Overview

The C8051F534-IT is an 8-bit microcontroller from Silicon Labs' C8051F53x series, featuring a 25MHz 8051 core with 4KB FLASH program memory and 256 bytes of RAM. This device integrates essential peripherals including SPI and UART/USART connectivity, PWM, temperature sensor, watchdog timer, and brown-out detection. The C8051F534-IT is classified as obsolete, making identification of compatible substitute parts critical for ongoing system support and new design implementations.

Substiute Parts

C8051F534-IT

Silicon LabsIn Stock: 835C8051F534-IT Datasheet

Current PartRFQ

C8051F534A-IT

Silicon LabsIn Stock: 5091C8051F534A-IT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the C8051F534-IT is determined by strict equivalence across the following critical parameters:

• Core Architecture: 8051 processor family
• Memory Configuration: 4KB FLASH program memory, 256 bytes RAM
• Clock Speed: 25MHz operation
• Peripheral Set: SPI, UART/USART, PWM, temperature sensor, watchdog timer, brown-out detection
• I/O Count: 16 I/O pins
• Package Form Factor: 20-TSSOP surface mount package
• Voltage Compatibility: Supply voltage range must accommodate system requirements
• Data Converter Specification: A/D 16x12b

The C8051F534A-IT meets all these criteria and qualifies as a direct substitute based on identical functional specifications and pinout compatibility.

Parameter Comparison

Engineering Selection Recommendations

The C8051F534A-IT is the qualified substitute for the obsolete C8051F534-IT. Both devices share identical core specifications, memory configuration, peripheral functionality, and 20-TSSOP package geometry, ensuring direct compatibility at the functional and physical levels.

The C8051F534A-IT offers an extended minimum supply voltage specification of 1.8V compared to the C8051F534-IT's 2V minimum, providing additional operational flexibility in low-voltage applications. The C8051F534A-IT maintains active product status with verified programmability and higher inventory availability, supporting both legacy system maintenance and new design implementations.

Compliance certifications (ECCN: EAR99, HTSUS: 8542.31.0001) are identical across both parts, confirming regulatory equivalence for export and procurement purposes.

Frequently Asked Questions (FAQ)

Q: Can the C8051F534A-IT directly replace the C8051F534-IT in existing designs?

A: Yes. Both devices feature identical core architecture, memory configuration, peripheral set, I/O count, and 20-TSSOP package pinout. No circuit modifications are required for direct substitution.

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

A: The C8051F534A-IT extends the minimum supply voltage specification to 1.8V, whereas the C8051F534-IT operates from 2V minimum. The C8051F534A-IT also maintains active product status with higher inventory availability.

Q: Are there any voltage compatibility concerns when substituting?

A: If your system operates at or above 2V, both parts are fully compatible. Systems designed for operation below 2V should verify compatibility with the C8051F534-IT's minimum voltage specification before substitution.

Q: Does the package form factor remain identical?

A: Yes. Both parts use the 20-TSSOP surface mount package with identical pin assignments and mechanical dimensions (0.173", 4.40mm width).

Q: Are the peripheral functions identical between these parts?

A: Yes. Both devices include identical SPI, UART/USART connectivity, PWM, temperature sensor, watchdog timer, brown-out detection, and power-on reset functionality.