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IDT71256L45DB

Manufacturer: DIDT

CMOS STATIC RAM 256K (32K x 8-BIT)
Partnumber Manufacturer Quantity Availability
IDT71256L45DB DIDT 1300 In Stock

Description and Introduction

CMOS STATIC RAM 256K (32K x 8-BIT) The IDT71256L45DB is a high-speed 32K x 8-bit CMOS static RAM (SRAM) manufactured by Integrated Device Technology (IDT).  

### **Specifications:**  
- **Density:** 256Kb (32K x 8-bit)  
- **Speed:** 45ns access time  
- **Voltage Supply:** 5V ±10%  
- **Operating Current:** 120mA (typical)  
- **Standby Current:** 5mA (typical, CMOS level)  
- **Package:** 28-pin DIP (Dual In-line Package)  
- **Temperature Range:** Commercial (0°C to +70°C)  
- **Organization:** 32,768 words x 8 bits  
- **I/O:** Fully static operation, TTL-compatible  

### **Descriptions & Features:**  
- **High-Speed Performance:** 45ns access time for fast read/write operations.  
- **Low Power Consumption:** Features both active and standby power-saving modes.  
- **CMOS Technology:** Ensures low power dissipation and high noise immunity.  
- **Fully Static Operation:** No clock or refresh required.  
- **Three-State Outputs:** Allows direct interfacing with common bus structures.  
- **TTL Compatibility:** Inputs and outputs are TTL-compatible for easy integration.  
- **Industrial Standard Pinout:** Matches industry-standard 28-pin DIP SRAMs.  

This SRAM is commonly used in applications requiring fast, low-power memory, such as embedded systems, networking equipment, and industrial controls.

Application Scenarios & Design Considerations

CMOS STATIC RAM 256K (32K x 8-BIT)

Alternative Part Number

  • CY7C199-45PC --: 32K x 8 asynchronous SRAM with 45 ns access time, pin-compatible with the IDT71256L45DB and widely available as a drop-in replacement.
  • AS7C256-45PC --: 32K x 8 low-power CMOS SRAM in a 28-pin DIP with 45 ns speed grade, functionally equivalent and often used as a direct substitute for IDT71256 parts.
  • IS61C256AL-45U --: 32K x 8 high-speed CMOS SRAM with 45 ns access time, same organization and interface, suitable as an alternative when the original IDT device is unavailable.
  • IS61C256AL-45TLI --: 32K x 8 high-speed CMOS SRAM with 45 ns access time, widely used as a second-source substitute for IDT71256L devices.

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