AT90S2313-4PI Equivalent & Substitute Parts

Part Overview

The AT90S2313-4PI 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 peripheral functions including brown-out detection, power-on reset, PWM, and watchdog timer capabilities. The product is classified as obsolete, necessitating identification of functionally equivalent alternatives for new designs and ongoing system support.

Substiute Parts

AT90S2313-4PI

Microchip TechnologyIn Stock: 1204AT90S2313-4PI Datasheet

Current PartRFQ

ATTINY2313V-10PU

AtmelIn Stock: 1584ATTINY2313V-10PU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AT90S2313-4PI is determined by strict equivalence across the following critical parameters:

• Core Architecture: AVR processor family ensures instruction set compatibility
• Memory Configuration: Identical 2KB FLASH, 128-byte EEPROM, and 128-byte RAM
• Package Type: 20-DIP through-hole form factor for direct socket compatibility
• Operating Temperature Range: -40°C to 85°C operational envelope
• Supply Voltage Compatibility: Overlapping or extended voltage specifications

The ATTINY2313V-10PU qualifies as a direct substitute based on matching core memory specifications, identical package geometry, and compatible temperature ratings. Differences in speed rating, I/O count, and supply voltage range do not preclude substitution when application requirements fall within the substitute's operational parameters.

Parameter Comparison

Engineering Selection Recommendations

The ATTINY2313V-10PU is an active-status substitute for the obsolete AT90S2313-4PI. Both devices share identical memory architecture, package form factor, and peripheral feature sets. The substitute offers higher clock speed (10MHz versus 4MHz) and three additional I/O pins, providing enhanced performance headroom without reducing functional capability.

The ATTINY2313V-10PU operates within a narrower supply voltage window (1.8V to 5.5V) compared to the original part (2.7V to 6V). Applications requiring operation below 1.8V or above 5.5V must retain the AT90S2313-4PI or identify alternative solutions. For standard industrial and commercial applications operating within 2.7V to 5.5V, the substitute provides full compatibility.

Both devices carry identical ECCN (EAR99) and HTSUS (8542.31.0001) classifications, ensuring equivalent regulatory treatment.

Frequently Asked Questions (FAQ)

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

A: Yes, for applications operating within the 1.8V to 5.5V supply range. The 20-DIP package geometry is identical, and memory specifications match exactly. Firmware compiled for the AT90S2313-4PI executes on the ATTINY2313V-10PU without modification.

Q: What is the impact of the speed difference (4MHz versus 10MHz)?

A: The ATTINY2313V-10PU operates at higher clock frequency, reducing instruction execution time. Applications designed for 4MHz operation function correctly at 10MHz. Timing-critical code may require adjustment if dependent on specific clock cycles.

Q: Are there supply voltage constraints for substitution?

A: Yes. The AT90S2313-4PI supports 2.7V to 6V operation, while the ATTINY2313V-10PU operates from 1.8V to 5.5V. Applications requiring operation above 5.5V cannot use the substitute. Within the 2.7V to 5.5V overlap range, both devices are compatible.

Q: Does the additional I/O on the ATTINY2313V-10PU (18 versus 15 pins) affect compatibility?

A: No. The substitute provides three additional I/O pins beyond the original part's 15. Existing designs using 15 I/O pins operate identically. The additional pins remain available for future expansion.

Q: What is the significance of internal versus external oscillator specification?

A: The AT90S2313-4PI requires external clock source, while the ATTINY2313V-10PU integrates an internal oscillator. Both devices support external clock input. Applications using external oscillators function identically on the substitute.