AT90S2323-10PI Equivalent & Substitute Parts

Part Overview

The AT90S2323-10PI 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, making substitute parts necessary for new designs and production continuity. The AT90S2323-10PI is designed for embedded applications requiring low-cost, low-power 8-bit processing with basic I/O and peripheral support.

Substiute Parts

AT90S2323-10PI

Microchip TechnologyIn Stock: 1356AT90S2323-10PI Datasheet

Current PartRFQ

ATTINY25V-10PU

Microchip TechnologyIn Stock: 5149ATTINY25V-10PU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AT90S2323-10PI is based on the following critical parameters that must remain consistent:

• Core processor architecture (AVR)
• Core size (8-Bit)
• Operating speed (10MHz)
• Program memory capacity (2KB FLASH)
• EEPROM capacity (128 x 8)
• RAM capacity (128 x 8)
• Package type (8-DIP)
• Operating temperature range (-40°C ~ 85°C)

The ATTINY25V-10PU meets these core requirements while offering enhanced features and active product status. Voltage supply range differences and additional peripherals do not prevent functional substitution when design specifications accommodate the substitute's capabilities.

Parameter Comparison

Engineering Selection Recommendations

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

• Active product status ensures long-term availability and supply chain continuity
• ROHS3 compliance meets current environmental and regulatory requirements
• Extended voltage supply range (1.8V ~ 5.5V) provides greater design flexibility compared to the original 4V ~ 6V specification
• Additional I/O pins (6 versus 3) and enhanced peripherals (PWM addition) support expanded functionality without changing the package footprint

The AT90S2323-10PI's obsolete status and RoHS non-compliance make the ATTINY25V-10PU the recommended choice for new designs and production applications.

Frequently Asked Questions (FAQ)

Q: Can the ATTINY25V-10PU directly replace the AT90S2323-10PI in existing designs?

A: Yes, the ATTINY25V-10PU is pin-compatible and functionally equivalent for core microcontroller operations. Both devices use the 8-DIP package and share identical memory specifications (2KB FLASH, 128 bytes EEPROM, 128 bytes RAM) and operating speed (10MHz). Existing firmware compiled for the AT90S2323-10PI will execute on the ATTINY25V-10PU without modification.

Q: What are the voltage supply differences between these parts?

A: The AT90S2323-10PI operates within 4V ~ 6V, while the ATTINY25V-10PU operates within 1.8V ~ 5.5V. The substitute's wider voltage range accommodates the original specification range. Designs operating at the lower end of the original range (below 1.8V) would require evaluation.

Q: Are there connectivity differences between SPI and USI?

A: The AT90S2323-10PI features SPI connectivity, while the ATTINY25V-10PU features USI (Universal Serial Interface). USI is a more flexible serial interface that can implement SPI, I2C, and other serial protocols. Existing SPI implementations will function on the ATTINY25V-10PU.

Q: Does the increased I/O count (6 versus 3) affect compatibility?

A: No. The additional I/O pins on the ATTINY25V-10PU do not affect compatibility with designs using only the three I/O pins available on the AT90S2323-10PI. Extra pins remain available for future expansion without impacting existing circuit functionality.

Q: What is the significance of RoHS3 compliance on the ATTINY25V-10PU?

A: RoHS3 compliance indicates the ATTINY25V-10PU meets current environmental and regulatory standards for hazardous substance restrictions. The AT90S2323-10PI's RoHS non-compliance status may restrict its use in applications subject to RoHS regulations or customer requirements.