AT90S2323-10SC >
AT90S2323-10SC
Microchip Technology
IC MCU 8BIT 2KB FLASH 8SOIC
1652 Pcs New Original In Stock
AVR AVR® 90S Microcontroller IC 8-Bit 10MHz 2KB (1K x 16) FLASH 8-SOIC
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AT90S2323-10SC Microchip Technology
5.0 / 5.0 - (519 Ratings)

AT90S2323-10SC

Product Overview

1250890

DiGi Electronics Part Number

AT90S2323-10SC-DG
AT90S2323-10SC

Description

IC MCU 8BIT 2KB FLASH 8SOIC

Inventory

1652 Pcs New Original In Stock
AVR AVR® 90S Microcontroller IC 8-Bit 10MHz 2KB (1K x 16) FLASH 8-SOIC
Quantity
Minimum 1

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AT90S2323-10SC Technical Specifications

Category Embedded, Microcontrollers

Manufacturer Microchip Technology

Packaging -

Series AVR® 90S

Product Status Obsolete

DiGi-Electronics Programmable Not Verified

Core Processor AVR

Core Size 8-Bit

Speed 10MHz

Connectivity SPI

Peripherals Brown-out Detect/Reset, POR, WDT

Number of I/O 3

Program Memory Size 2KB (1K x 16)

Program Memory Type FLASH

EEPROM Size 128 x 8

RAM Size 128 x 8

Voltage - Supply (Vcc/Vdd) 4V ~ 6V

Data Converters -

Oscillator Type Internal

Operating Temperature 0°C ~ 70°C

Mounting Type Surface Mount

Supplier Device Package 8-SOIC

Package / Case 8-SOIC (0.209", 5.30mm Width)

Base Product Number AT90S2323

Datasheet & Documents

HTML Datasheet

AT90S2323-10SC-DG

Environmental & Export Classification

RoHS Status RoHS non-compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.31.0001

Additional Information

Standard Package
95

Alternative Parts

View Details
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
ATTINY25V-10SU
Microchip Technology
22738
ATTINY25V-10SU-DG
0.0141
Direct

Reviews

5.0/5.0-(Show up to 5 Ratings)
星***者
de desembre 02, 2025
5.0
在DiGi Electronics購物後,店員的售後服務非常熱心,任何問題都能迅速解決,讓我感受到貼心的關懷。
CheminV***LeFutur
de desembre 02, 2025
5.0
Ils garantissent une expérience client sans faille grâce à leur support.
Sunsh***Seeker
de desembre 02, 2025
5.0
DiGi Electronics has earned my loyalty with their reliable products and excellent service.
Vall***fJoy
de desembre 02, 2025
5.0
Di Digi Electronics’ packaging is not only robust but creatively designed, making unboxing a delight.
Peac***lPier
de desembre 02, 2025
5.0
After extensive testing, I can confirm the product's exceptional resilience.
Nov***oom
de desembre 02, 2025
5.0
I appreciate how detailed their support is—helping me optimize the use of components after purchase.
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Frequently Asked Questions (FAQ)

Can I use the AT90S2323-10SC in a new design despite being obsolete, and what are the risks of long-term availability and supply chain disruption?

Using the AT90S2323-10SC in a new design carries significant long-term risks due to its obsolete status. While it may be available in limited stock (e.g., 1554 pcs currently in inventory), Microchip no longer actively manufactures it, meaning future production is unlikely. Relying on it exposes your design to sudden stockouts, price volatility, and counterfeit components. For new designs, we strongly recommend migrating to a supported alternative like the ATTINY25V-10SU, which offers pin-compatible functionality, improved power efficiency, and full lifecycle support. If you must use the AT90S2323-10SC for legacy compatibility, secure a lifetime buy or qualify a drop-in replacement early to mitigate supply chain risk.

What are the critical differences between the AT90S2323-10SC and its recommended substitute, the ATTINY25V-10SU, especially in low-power or brown-out sensitive applications?

While both the AT90S2323-10SC and ATTINY25V-10SU are 8-bit AVR microcontrollers with 2KB Flash and 128B RAM, the ATTINY25V-10SU offers key improvements critical for modern designs. The ATTINY25V supports a wider voltage range (1.8V to 5.5V vs. 4V–6V), enabling low-power operation and better brown-out detection flexibility. It also includes enhanced peripherals like a programmable watchdog timer and improved sleep modes, reducing current consumption to under 1µA in power-down mode—unachievable with the AT90S2323-10SC. Additionally, the ATTINY25V has better noise immunity and a more robust internal oscillator. For brown-out sensitive systems, the ATTINY25V’s configurable BOD levels provide safer reset thresholds, making it a safer, future-proof replacement.

How does the internal oscillator accuracy of the AT90S2323-10SC impact timing-critical SPI communication, and should I use an external crystal instead?

The AT90S2323-10SC relies on an internal RC oscillator with typical accuracy of ±10% over voltage and temperature, which can cause timing drift in SPI communication—especially at higher clock speeds or when synchronizing with external devices. For SPI master mode at 10MHz, this inaccuracy may lead to setup/hold time violations or data corruption in noisy environments. We recommend using an external crystal (e.g., 10MHz ±50ppm) if your application involves high-speed SPI, daisy-chained devices, or communication with strict timing requirements. Alternatively, consider switching to a modern substitute like the ATTINY25V-10SU, which includes factory-calibrated oscillators and better clock stability, reducing the need for external crystals in moderate-speed applications.

Is the AT90S2323-10SC suitable for industrial environments operating near its 70°C limit, and what derating or thermal management is required?

Operating the AT90S2323-10SC near its maximum rated temperature of 70°C in industrial environments increases the risk of timing drift, reduced Flash endurance, and premature failure. The datasheet specifies performance at 70°C, but real-world conditions—such as enclosure heating, poor airflow, or proximity to power components—can push the die temperature beyond safe limits. We recommend derating the operating temperature to 60°C or below and ensuring adequate PCB copper pour for heat dissipation. Avoid continuous operation at 10MHz near 70°C; consider reducing clock speed or using sleep modes. For harsh environments, migrate to industrial-grade alternatives like the ATTINY25V-10SU, which supports -40°C to 85°C operation and offers better thermal resilience.

Can I safely replace the AT90S2323-10SC with the ATTINY25V-10SU in an existing 8-SOIC footprint without PCB changes, and what firmware modifications are needed?

Yes, the ATTINY25V-10SU is a drop-in replacement for the AT90S2323-10SC in an 8-SOIC package with identical pinout and voltage compatibility (3.3V or 5V systems), allowing direct PCB substitution without layout changes. However, firmware modifications are required: the ATTINY25V uses updated register names and enhanced instructions, so you must recompile your code using modern AVR-GCC or Atmel Studio with the correct device header. Additionally, fuse bit settings differ—especially for clock source and brown-out detection—so reprogramming with a tool like Atmel-ICE is essential. Always verify SPI timing and I/O behavior post-migration. This substitution not only resolves obsolescence but also improves reliability and power performance with minimal hardware redesign.

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