AT89C5130A-RDTIM Equivalent & Substitute Parts

Part Overview

The AT89C5130A-RDTIM is an 80C51-based 8-bit microcontroller manufactured by Microchip Technology, featuring 16KB FLASH program memory, 4KB EEPROM, and 1.25KB RAM. This device integrates I2C, SPI, UART/USART, and USB connectivity with 34 I/O pins in a 64-LQFP package. The AT89C5130A-RDTIM is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications where this microcontroller is specified in existing designs.

Substiute Parts

AT89C5130A-RDTIM

Microchip TechnologyIn Stock: 1177AT89C5130A-RDTIM Datasheet

Current PartRFQ

AT89C5130A-RDTUM

Microchip TechnologyIn Stock: 1148AT89C5130A-RDTUM Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AT89C5130A-RDTIM is determined by equivalence across the following critical parameters: core processor architecture (80C51), core size (8-bit), operating speed (48MHz), program memory capacity and type (16KB FLASH), EEPROM size (4K x 8), RAM size (1.25K x 8), I/O count (34 pins), connectivity interfaces (I2C, SPI, UART/USART, USB), peripheral features (LED, POR, PWM, WDT), supply voltage range (2.7V ~ 5.5V), and operating temperature range (-40°C ~ 85°C). Package form factor and RoHS compliance status are secondary considerations that may vary between substitute parts while maintaining functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

The AT89C5130A-RDTUM is a direct functional equivalent to the AT89C5130A-RDTIM across all core electrical and memory specifications. Both devices share identical processor architecture, clock speed, memory configuration, I/O count, and connectivity interfaces. The primary differences are packaging format (64-LQFP versus 64-VQFP) and product lifecycle status. The AT89C5130A-RDTUM is currently in active production status, whereas the AT89C5130A-RDTIM is obsolete. The AT89C5130A-RDTUM also carries ROHS3 compliance certification, compared to the non-compliant status of the main part. Both devices maintain identical moisture sensitivity levels and regulatory classifications (REACH, ECCN, HTSUS). Selection between these parts depends on PCB layout compatibility with the respective package geometries and regulatory compliance requirements of the end application.

Frequently Asked Questions (FAQ)

Q: Are the AT89C5130A-RDTIM and AT89C5130A-RDTUM electrically interchangeable?

A: Yes. Both devices are electrically equivalent across all functional parameters including processor core, memory capacity, I/O configuration, and connectivity interfaces. They operate at identical voltage ranges and temperature specifications.

Q: What is the difference between 64-LQFP and 64-VQFP packages?

A: Both are 64-pin surface mount packages with 10x10mm body dimensions. The primary difference is pin configuration geometry. LQFP (Low-Profile Quad Flat Package) and VQFP (Very thin Quad Flat Package) have different lead frame designs. PCB footprint compatibility must be verified before substitution.

Q: Why is the AT89C5130A-RDTIM listed as obsolete?

A: The AT89C5130A-RDTIM has reached end-of-life status with Microchip Technology. The AT89C5130A-RDTUM remains in active production and is the recommended replacement for new designs and ongoing production requirements.

Q: Does RoHS compliance affect functional compatibility?

A: RoHS compliance is a manufacturing and material standard, not a functional specification. The ROHS3-compliant AT89C5130A-RDTUM performs identically to the non-compliant AT89C5130A-RDTIM. Selection depends on end-product regulatory requirements.

Q: Can I use AT89C5130A-RDTUM in existing designs specified for AT89C5130A-RDTIM?

A: Functional compatibility is confirmed. Physical compatibility requires verification of PCB footprint design for the respective package type (LQFP versus VQFP). Consult PCB layout documentation and package datasheets to confirm pin-to-pad alignment.