AT90S2323-10PC Equivalent & Substitute Parts

Part Overview

The AT90S2323-10PC 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 operating at 10MHz. This device is classified as obsolete and is no longer in active production. Finding equivalent or substitute parts is necessary due to limited availability and the transition to newer AVR microcontroller families that offer enhanced features and extended support lifecycles.

Substiute Parts

AT90S2323-10PC

Microchip TechnologyIn Stock: 881AT90S2323-10PC Datasheet

Current PartRFQ

ATTINY25V-10PU

Microchip TechnologyIn Stock: 5149ATTINY25V-10PU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The ATTINY25V-10PU qualifies as a functional substitute based on the following alignment of critical parameters:

Core Compatibility Parameters:

• Identical core processor architecture (AVR)
• Matching core size (8-Bit)
• Identical operating speed (10MHz)
• Identical program memory capacity (2KB FLASH, 1K x 16)
• Identical EEPROM size (128 x 8)
• Identical RAM size (128 x 8)
• Identical package form factor (8-DIP, 0.300", 7.62mm)
• Identical mounting type (Through Hole)

Functional Enhancements in Substitute: The ATTINY25V-10PU provides extended voltage supply range (1.8V ~ 5.5V versus 4V ~ 6V), additional I/O pins (6 versus 3), integrated analog-to-digital converter (4x10-bit), and enhanced peripheral set including PWM and USI connectivity. These additions do not prevent substitution; they represent functional improvements while maintaining backward compatibility with the core instruction set and memory architecture.

Parameter Comparison

Engineering Selection Recommendations

The ATTINY25V-10PU is a direct functional substitute for the AT90S2323-10PC based on identical core architecture, memory configuration, and package specifications. The substitute part offers the following advantages:

Product Status: The ATTINY25V-10PU maintains active production status with established supply chains, whereas the AT90S2323-10PC is obsolete with limited inventory availability.

Compliance: The ATTINY25V-10PU is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The original part is RoHS non-compliant.

Operational Range: The substitute part's extended voltage supply range (1.8V ~ 5.5V) encompasses the original part's operating range (4V ~ 6V), ensuring compatibility in existing power supply designs.

Functional Parity: Identical instruction set architecture, memory organization, and package form factor ensure software and hardware compatibility without redesign requirements.

Selection of the ATTINY25V-10PU eliminates obsolescence risk while maintaining full functional compatibility with designs originally specified for the AT90S2323-10PC.

Frequently Asked Questions (FAQ)

Q: Can the ATTINY25V-10PU be used as a direct replacement in existing AT90S2323-10PC designs?

A: Yes. Both devices share identical core architecture (AVR 8-bit), instruction set, memory configuration (2KB FLASH, 128 bytes EEPROM and RAM), operating speed (10MHz), and package form factor (8-DIP). No hardware or software modifications are required for substitution.

Q: What are the key differences between these parts?

A: The ATTINY25V-10PU provides extended voltage supply range (1.8V ~ 5.5V versus 4V ~ 6V), additional I/O pins (6 versus 3), integrated 4-channel 10-bit analog-to-digital converter, PWM capability, and USI connectivity. The substitute is in active production status while the original is obsolete.

Q: Are the packages physically identical?

A: Yes. Both devices use 8-DIP packaging with 0.300" (7.62mm) pitch. Pin-to-pin compatibility is maintained, allowing direct socket substitution on printed circuit boards.

Q: Does the substitute part meet current compliance standards?

A: Yes. The ATTINY25V-10PU is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components.

Q: What is the inventory status of each part?

A: The AT90S2323-10PC has 782 pieces in stock as new original inventory. The ATTINY25V-10PU has 5070 pieces in stock as new original inventory with active production support.

Q: Are there any connectivity differences that affect circuit design?

A: The original part features SPI connectivity, while the substitute features USI (Universal Serial Interface) connectivity. Both provide serial communication capability; USI is a more flexible interface standard that encompasses SPI functionality.