# AT27C256R-70PU (Component)
## Description
Non-Volatile Memory (ROM)
AT27C256R-70PU
DIP-28_L37.0-W13.8-P2.54-LS15.8-BL
LCSC Part Number: C147880
JLCPCB Part Class: Extended Part
Manufactured by MICROCHIP(美国微芯)
#27C256
## Component Details
- **Owner:** lcsc
- **Created:** 10/30/2024
- **Last Updated:** 2/25/2026
- **Visibility:** Public
- **JLCPCB Part Class:** Extended Part
- **LCSC Part Number:** C147880
- **Part Type:** Non-Volatile Memory (ROM)
- **Manufacturer Part Number:** AT27C256R-70PU
- **Manufacturer Name:** MICROCHIP(美国微芯)
- **Package or Case Code:** DIP-28_L37.0-W13.8-P2.54-LS15.8-BL
- **Product Info Url:** https://lcsc.com/product-detail/EPROM_Microchip-Tech_AT27C256R-70PU_Microchip-Tech-AT27C256R-70PU_C147880.html
- **Datasheet URL:** https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_Microchip-Tech-AT27C256R-70PU_C147880.pdf
- **Used in:** 12 projects
## Distributor Pricing (qty 1)
*Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.*
| Distributor | Unit Price (qty 1) | Stock |
|------------|--------------------|-------|
| [Arrow](https://www.arrow.com/en/products/at27c256r-70pu/microchip-technology.html?utm_currency=USD®ion=nac) | $2.671 | 303 |
| [Digi-Key](https://www.digikey.com/en/products/detail/microchip-technology/AT27C256R-70PU/1008551) | N/A | N/A |
| [LCSC](https://www.lcsc.com/product-detail/C147880.html) | $4.5186 | 0 |
| [Mouser](https://www.mouser.com/en/ProductDetail/Microchip-Technology/AT27C256R-70PU?qs=lURXKZrvvXerj2LFnnLrrA%3D%3D) | $2.85 | 4.7K |
| [TME](https://www.tme.com/us/en-us/katalog/?queryPhrase=AT27C256R-70PU) | $2.50 | 14 |
| [Verical](https://www.verical.com/pd/microchip-technology-eprom-AT27C256R-70PU-2627500?utm_currency=USD) | $2.681 | 714 |
- **Part Type:** Integrated Circuits
- **Sub-Type:** Logic
- **Manufacturer:** Microchip
- **MPN:** AT27C256R-70PU
- **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-70pu~qtxp](https://www.flux.ai/lcsc/at27c256r-70pu~qtxp)*