AT90S2313-4PC Equivalent & Substitute Parts

Part Overview

The AT90S2313-4PC is an 8-bit AVR microcontroller from Microchip Technology's AVR 90S series, featuring 2KB FLASH program memory, 128 bytes each of EEPROM and RAM, and 15 I/O pins. Operating at 4MHz with a supply voltage range of 2.7V to 6V, this device integrates SPI and UART/USART connectivity alongside peripherals including brown-out detection, power-on reset, PWM, and watchdog timer functionality in a 20-PDIP package.

The AT90S2313-4PC is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure component availability, and support legacy system maintenance and production requirements.

Substiute Parts

AT90S2313-4PC

Microchip TechnologyIn Stock: 1950AT90S2313-4PC Datasheet

Current PartRFQ

ATTINY2313V-10PU

AtmelIn Stock: 1584ATTINY2313V-10PU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AT90S2313-4PC is determined by the following critical parameters:

Core Architecture & Memory: The substitute must maintain AVR core processor architecture with identical program memory capacity (2KB FLASH), EEPROM (128 x 8), and RAM (128 x 8) to ensure firmware compatibility and functional equivalence.

Package & Pinout: The 20-DIP (0.300", 7.62mm) through-hole package is mandatory for mechanical and electrical compatibility with existing PCB layouts and socket configurations.

Connectivity & Peripherals: SPI and UART/USART interfaces, along with brown-out detection, power-on reset, PWM, and watchdog timer functionality, must be present to maintain system integration requirements.

Voltage Supply Range: The substitute must operate within or encompass the 2.7V to 6V supply voltage specification to ensure compatibility with existing power delivery systems.

The ATTINY2313V-10PU qualifies as a substitute based on these parameters, despite differences in maximum operating speed, I/O count, and operating temperature range, which do not affect functional substitution in legacy applications.

Parameter Comparison

Engineering Selection Recommendations

The ATTINY2313V-10PU is an active product with equivalent core functionality to the obsolete AT90S2313-4PC. Both devices share identical program memory, EEPROM, and RAM configurations, matching connectivity and peripheral sets, and compatible 20-DIP packaging.

The ATTINY2313V-10PU operates at a higher maximum speed (10MHz versus 4MHz) and supports a narrower voltage supply range (1.8V to 5.5V versus 2.7V to 6V). The substitute provides an extended operating temperature range (-40°C to 85°C) and includes three additional I/O pins (18 versus 15). The ATTINY2313V-10PU features internal oscillator capability, whereas the AT90S2313-4PC requires external oscillation.

For applications requiring the original 2.7V minimum supply voltage or external oscillator configuration, design verification is necessary. The substitute's higher speed capability and expanded temperature range present no functional limitations for legacy applications operating within the original specifications.

Frequently Asked Questions (FAQ)

Q: Can the ATTINY2313V-10PU directly replace the AT90S2313-4PC in existing designs?

A: Yes, for applications operating within the ATTINY2313V-10PU voltage range (1.8V to 5.5V). The identical 20-DIP package, pinout, program memory, EEPROM, RAM, and peripheral configuration ensure mechanical and functional compatibility. Applications requiring operation below 1.8V or dependent on external oscillator configuration require design review.

Q: What are the key differences between these parts?

A: The ATTINY2313V-10PU operates at 10MHz maximum speed compared to 4MHz for the AT90S2313-4PC, supports internal oscillation, provides three additional I/O pins, and operates across an extended temperature range. The substitute's voltage supply range is narrower (1.8V to 5.5V versus 2.7V to 6V).

Q: Are there any package or pinout differences?

A: No. Both devices use identical 20-DIP (0.300", 7.62mm) through-hole packaging with compatible pinouts for direct socket substitution.

Q: What is the product status difference?

A: The AT90S2313-4PC is classified as obsolete, while the ATTINY2313V-10PU is an active product with ongoing manufacturing and availability.

Q: Does the higher speed of the ATTINY2313V-10PU affect compatibility?

A: No. The substitute's higher maximum speed does not create incompatibility. Applications designed for 4MHz operation will function correctly at reduced clock speeds on the ATTINY2313V-10PU.