# AT29C256\-90JI (Component)

## Description

FLASH Memory IC 256Kbit Parallel 90 ns 32\-PLCC \(13\.97x11\.43\)

256\-Kbit parallel NOR Flash memory organized as 32K × 8, featuring 90 ns access time, 5 V\-only operation, page programming, and hardware/software data protection\. The AT29C256\-90JI is suitable for firmware, program\-code, configuration, and other non\-volatile data storage in embedded and industrial systems; it uses a 32\-pin PLCC package and operates from 4\.5–5\.5 V\.

\#FlashMemory \#NORFlash \#NonVolatileMemory \#ParallelMemory \#PLCC \#Microchip \#AT29C256

## Component Details

- **Owner:** silicon\-yard
- **Created:** 8/27/2026
- **Last Updated:** 8/27/2026
- **Visibility:** Public
- **Manufacturer Name:** Microchip Technology
- **License:** https://creativecommons\.org/licenses/by/4\.0/
- **Manufacturer Part Number:** AT29C256\-90JI
- **Part Type:** Integrated Circuit
- **Datasheet URL:** https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/user\-uploaded/8c35c94def9ed4a739b43209e0f9f720684e6e2481ff54cc5efbea1722bc8628\.pdf
- **Symbol Style:** parametric\-v1

## Distributor Pricing (qty 1)

*Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.*

| Distributor | Unit Price (qty 1) | Stock |
|------------|--------------------|-------|
| [Digi\-Key](https://www.digikey.com/en/products/detail/microchip-technology/AT29C256-90JI/399191) | N/A | N/A |
| [Mouser](https://www.mouser.com/en/ProductDetail/Microchip-Technology/AT29C256-90JI?qs=mcBJtHuWqlWvsyn1vvSmiw%253D%253D) | N/A | N/A |

- **Part Type:** Integrated Circuits
- **Sub-Type:** Logic
- **Manufacturer:** Microchip
- **MPN:** AT29C256\-90JI
- **Mount Type:** Hardware
- **Pin Count:** 32
- **Logic Function:** AND
## Pins

| Pin | Name | Type |
|-----|------|------|
| 23 | \*CE |  |
| 1 | DC |  |
| 11 | A0 |  |
| 13 | I/O0 |  |
| 32 | VCC |  |
| 16 | GND |  |
| 14 | I/O1 |  |
| 25 | \*OE |  |
| 10 | A1 |  |
| 12 | NC |  |
| 15 | I/O2 |  |
| 2 | \*WE |  |
| 9 | A2 |  |
| 17 | DC::P17 |  |
| 8 | A3 |  |
| 26 | NC::P26 |  |
| 18 | I/O3 |  |
| 19 | I/O4 |  |
| 7 | A4 |  |
| 20 | I/O5 |  |
| 6 | A5 |  |
| 21 | I/O6 |  |
| 5 | A6 |  |
| 22 | I/O7 |  |
| 4 | A7 |  |
| 29 | A8 |  |
| 28 | A9 |  |
| 24 | A10 |  |
| 27 | A11 |  |
| 3 | A12 |  |
| 30 | A13 |  |
| 31 | A14 |  |

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*Generated from [https://flux\.ai/silicon\-yard/at29c256\-90ji\~d2](https://flux.ai/silicon-yard/at29c256-90ji~d2)*