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IDT71256S-100DB from IDT

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IDT71256S-100DB

Manufacturer: IDT

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

Partnumber Manufacturer Quantity Availability
IDT71256S-100DB,IDT71256S100DB IDT 1000 In Stock

Description and Introduction

CMOS STATIC RAM 256K (32K x 8-BIT) The IDT71256S-100DB is a high-speed 32K x 8-bit Static RAM (SRAM) manufactured by Integrated Device Technology (IDT). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Organization:** 32K x 8-bit (262,144 bits)  
- **Access Time:** 100 ns  
- **Operating Voltage:** 5V ±10%  
- **Operating Temperature Range:** Commercial (0°C to +70°C)  
- **Package:** 28-pin DIP (Dual In-line Package)  
- **Power Consumption:**  
  - Active: 495 mW (typical)  
  - Standby: 55 mW (typical)  
- **I/O Type:** TTL-compatible  
- **Tri-State Outputs:** Yes  

### **Descriptions:**
- The IDT71256S-100DB is a CMOS static RAM designed for high-performance applications requiring fast access times.  
- It features a fully static operation, meaning no refresh cycles are required.  
- The device is suitable for use in microprocessor-based systems, cache memory, and other high-speed memory applications.  

### **Features:**
- **High-Speed Performance:** 100 ns access time.  
- **Low Power Consumption:** Reduced power in both active and standby modes.  
- **Wide Operating Voltage Range:** 4.5V to 5.5V.  
- **Fully Static Operation:** No clock or refresh needed.  
- **Three-State Outputs:** Allows for bus-oriented applications.  
- **TTL-Compatible Inputs/Outputs:** Ensures easy interfacing with standard logic circuits.  
- **Industrial-Standard Pinout:** Compatible with other 32K x 8 SRAMs.  

This information is based solely on the manufacturer's datasheet for the IDT71256S-100DB.

Application Scenarios & Design Considerations

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

Alternative Part Number

  • CY7C199-25PC --: 32K x 8 asynchronous SRAM with comparable 25 ns access time and 5V DIP pinout, a direct functional replacement for the 71256 series.
  • AS7C256-15PC --: 32K x 8 low-power CMOS SRAM in the same DIP package with 15 ns speed grade, widely used as a drop-in substitute for IDT 71256 devices.
  • IS61C256AH-15N --: 32K x 8 high-speed CMOS SRAM with 15 ns access time and compatible pinout, suitable as an alternative when the 100 ns speed grade is not critical.

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