# AT27C256R-45PU (Component) ## Description Non-Volatile Memory (ROM) AT27C256R-45PU DIP-28_L37.0-W13.8-P2.54-LS15.8-BL LCSC Part Number: C145402 JLCPCB Part Class: Extended Part Manufactured by MICROCHIP(美国微芯) ## Component Details - **Owner:** lcsc - **Created:** 10/30/2024 - **Last Updated:** 4/23/2025 - **Visibility:** Public - **Package or Case Code:** DIP-28_L37.0-W13.8-P2.54-LS15.8-BL - **Manufacturer Name:** MICROCHIP(美国微芯) - **Manufacturer Part Number:** AT27C256R-45PU - **Product Info Url:** https://lcsc.com/product-detail/EPROM_Microchip-Tech_AT27C256R-45PU_Microchip-Tech-AT27C256R-45PU_C145402.html - **Datasheet URL:** https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_Microchip-Tech-AT27C256R-45PU_C145402.pdf - **JLCPCB Part Class:** Extended Part - **Part Type:** Non-Volatile Memory (ROM) - **LCSC Part Number:** C145402 ## 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/AT27C256R-45PU/1118860) | N/A | N/A | | [LCSC](https://www.lcsc.com/product-detail/C145402.html) | $4.3476 | 0 | | [Mouser](https://www.mouser.com/en/ProductDetail/Microchip-Technology/AT27C256R-45PU?qs=lURXKZrvvXffwVd4jEFg7Q%3D%3D) | $2.95 | 1.9K | | [TME](https://www.tme.com/us/en-us/katalog/?queryPhrase=AT27C256R-45PU) | $2.60 | 14 | | [Verical](https://www.verical.com/pd/microchip-technology-eprom-AT27C256R-45PU-2627476?utm_currency=USD) | N/A | N/A | - **Part Type:** Integrated Circuits - **Sub-Type:** Logic - **Manufacturer:** Microchip - **MPN:** AT27C256R-45PU - **Mount Type:** PCB - **Package / Case Code:** 28-DIP - **Pin Count:** 28 - **Logic Function:** Storage ## Pins | Pin | Name | Type | |-----|------|------| | 1 | VPP | | | 2 | A12 | | | 3 | A7 | | | 4 | A6 | | | 5 | A5 | | | 6 | A4 | | | 7 | A3 | | | 8 | A2 | | | 9 | A1 | | | 10 | A0 | | | 11 | O0 | | | 12 | O1 | | | 13 | O2 | | | 14 | GND | | | 15 | O3 | | | 16 | O4 | | | 17 | O5 | | | 18 | O6 | | | 19 | O7 | | | 20 | ~{CE} | | | 21 | A10 | | | 22 | ~{OE} | | | 23 | A11 | | | 24 | A9 | | | 25 | A8 | | | 26 | A13 | | | 27 | A14 | | | 28 | VCC | | --- *Generated from [https://www.flux.ai/lcsc/at27c256r-45pu~wxs9](https://www.flux.ai/lcsc/at27c256r-45pu~wxs9)*