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CY7C291A-25WMB from CY,Cypress

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CY7C291A-25WMB

Manufacturer: CY

2K x 8 Reprogrammable PROM

Partnumber Manufacturer Quantity Availability
CY7C291A-25WMB,CY7C291A25WMB CY 35 In Stock

Description and Introduction

2K x 8 Reprogrammable PROM The CY7C291A-25WMB is a high-speed CMOS 9-bit registered transceiver manufactured by Cypress Semiconductor. Here are its key specifications:

- **Manufacturer**: Cypress Semiconductor (now part of Infineon Technologies)
- **Part Number**: CY7C291A-25WMB
- **Technology**: High-speed CMOS
- **Package**: 28-pin PLCC (Plastic Leaded Chip Carrier)
- **Operating Voltage**: 5V ±10%
- **Speed Grade**: 25 (25ns access time)
- **Operating Temperature Range**: 0°C to +70°C (commercial grade)
- **Function**: 9-bit registered transceiver with parity
- **I/O Type**: 3-state outputs
- **Features**: 
  - Parity generation/checking
  - Flow-through architecture
  - Latch-up performance exceeds 500mA
  - ESD protection >2000V

This device is designed for bidirectional data communication between buses with different operating speeds or voltage levels. The "WMB" suffix indicates the industrial temperature range (-40°C to +85°C) version in PLCC package.

Partnumber Manufacturer Quantity Availability
CY7C291A-25WMB,CY7C291A25WMB CYPRESS 400 In Stock

Description and Introduction

2K x 8 Reprogrammable PROM The CY7C291A-25WMB is a high-speed 16K x 9 asynchronous dual-port static RAM manufactured by Cypress Semiconductor. Key specifications include:

- **Organization**: 16K x 9 (147,456 bits)  
- **Speed**: 25 ns access time  
- **Voltage Supply**: 5V ±10%  
- **Operating Current**: 150 mA (typical)  
- **Standby Current**: 30 mA (typical)  
- **I/O Type**: TTL-compatible  
- **Package**: 68-pin ceramic Leadless Chip Carrier (LCC)  
- **Temperature Range**: Commercial (0°C to +70°C)  
- **Asynchronous Operation**: Allows independent read/write access to each port  
- **Dual-Port Feature**: Enables simultaneous access from both ports (with arbitration logic for contention resolution)  
- **Interrupt Support**: BUSY flag output for port contention management  

This device is designed for applications requiring high-speed data sharing between two systems.  

(Source: Cypress Semiconductor datasheet for CY7C291A-25WMB.)

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