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CY27C256-45WC from CYPRESS

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CY27C256-45WC

Manufacturer: CYPRESS

32K x 8-Bit CMOS EPROM

Partnumber Manufacturer Quantity Availability
CY27C256-45WC,CY27C25645WC CYPRESS 200 In Stock

Description and Introduction

32K x 8-Bit CMOS EPROM The CY27C256-45WC is a 256K (32K x 8) CMOS UV-erasable programmable read-only memory (EPROM) manufactured by Cypress Semiconductor. Below are its key specifications:

- **Organization**: 32K x 8 bits  
- **Access Time**: 45 ns  
- **Operating Voltage**: 5V ± 10%  
- **Power Consumption**:  
  - Active: 30 mA (typical)  
  - Standby: 100 µA (typical)  
- **Technology**: CMOS  
- **Package**: 28-pin Windowed CERDIP (WC)  
- **Operating Temperature Range**:  
  - Commercial: 0°C to +70°C  
  - Industrial: -40°C to +85°C  
- **Programming Voltage (VPP)**: 12.5V  
- **Data Retention**: 10 years minimum  
- **UV Erasure**:  
  - Wavelength: 2537 Å  
  - Energy: 15 W·s/cm²  
  - Time: 15–20 minutes (typical)  

This device features a single 5V power supply, TTL-compatible inputs/outputs, and a three-state output for bus compatibility.

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