IC Phoenix logo

Home ›  W  › W5 > WS27C256L-20DMB

WS27C256L-20DMB from WSI

Fast Delivery, Competitive Price @IC-phoenix

If you need more electronic components or better pricing, we welcome any inquiry.

WS27C256L-20DMB

Manufacturer: WSI

Military 32K x 8 CMOS EPROM

Partnumber Manufacturer Quantity Availability
WS27C256L-20DMB,WS27C256L20DMB WSI 700 In Stock

Description and Introduction

Military 32K x 8 CMOS EPROM The WS27C256L-20DMB is a 256K (32K x 8) CMOS UV erasable and electrically programmable read-only memory (EPROM) manufactured by WSI. Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Organization:** 32K x 8 (256K bits)  
- **Access Time:** 200 ns (WS27C256L-20)  
- **Operating Voltage:** 5V ±10%  
- **Power Consumption:**  
  - Active: 30 mA (max)  
  - Standby: 100 µA (max)  
- **Programming Voltage (VPP):** 12.5V  
- **Operating Temperature Range:**  
  - Commercial: 0°C to +70°C  
  - Industrial: -40°C to +85°C  
- **Package:** 28-pin DIP (Dual In-line Package)  

### **Descriptions & Features:**  
- **UV Erasable:** Can be erased by exposure to ultraviolet light (typically 15-20 minutes under UV lamp).  
- **Electrically Programmable:** Byte-wise programming with a 12.5V programming voltage.  
- **CMOS Technology:** Low power consumption compared to NMOS EPROMs.  
- **TTL-Compatible Inputs/Outputs:** Ensures compatibility with standard logic levels.  
- **Tri-State Outputs:** Allows bus sharing in microprocessor systems.  
- **Program Inhibit Mode:** Enables partial programming without affecting other bytes.  
- **Program Verification:** Built-in circuitry for verifying programmed data.  
- **Reliable Data Retention:** Typically retains data for more than 10 years.  

This EPROM is commonly used in embedded systems, firmware storage, and legacy computing applications.

Application Scenarios & Design Considerations

Military 32K x 8 CMOS EPROM

Request Quotation

For immediate assistance, call us at +86 533 2716050 or email [email protected]

Part Number Quantity Target Price($USD) Email Contact Person
We offer highly competitive channel pricing. Get in touch for details.

Specializes in hard-to-find components chips