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IDT71256L45DB

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

Partnumber Manufacturer Quantity Availability
IDT71256L45DB 300 In Stock

Description and Introduction

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

### **Key Specifications:**  
- **Organization:** 32K x 8-bit  
- **Operating Voltage:** 5V ±10%  
- **Access Time:** 45 ns  
- **Operating Temperature Range:** Commercial (0°C to +70°C)  
- **Package Type:** 600-mil 28-pin DIP (Dual In-line Package)  
- **Pin Configuration:** Industry-standard JEDEC-compatible pinout  
- **Power Consumption:**  
  - Active: 495 mW (typical)  
  - Standby: 55 mW (typical)  

### **Features:**  
- **High-Speed Performance:** 45 ns access time  
- **Low Power Consumption:** CMOS technology for reduced power usage  
- **Fully Static Operation:** No refresh or clock required  
- **TTL-Compatible Inputs/Outputs:** Ensures compatibility with TTL logic levels  
- **Single 5V Power Supply:** Simplifies system design  
- **Three-State Outputs:** Allows bus sharing in multi-master systems  

### **Applications:**  
- Embedded systems  
- Networking equipment  
- Industrial controls  
- Telecommunications  

This SRAM is designed for applications requiring fast, reliable, and low-power memory solutions.

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.
Partnumber Manufacturer Quantity Availability
IDT71256L45DB DIDT 1000 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, functionally equivalent to the IDT71256L and pin-compatible in most DIP-28 sockets.
  • AS7C256-45PC --: 32K x 8 low-power CMOS SRAM, 45 ns speed grade, direct drop-in replacement for the 71256 series with matching pinout and timing.
  • 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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