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IDT7164L25TDB

Manufacturer: IDT

CMOS STATIC RAM 64K (8K x 8-BIT)

Partnumber Manufacturer Quantity Availability
IDT7164L25TDB IDT 546 In Stock

Description and Introduction

CMOS STATIC RAM 64K (8K x 8-BIT) The **IDT7164L25TDB** is a high-speed 16K x 8 dual-port static RAM (SRAM) manufactured by **Integrated Device Technology (IDT)**. Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Organization:** 16K x 8 (131,072 bits)  
- **Operating Voltage:** 5V ±10%  
- **Access Time:** 25 ns  
- **Operating Temperature Range:** Commercial (0°C to +70°C)  
- **Package Type:** 48-pin Thin Quad Flat Pack (TQFP)  
- **Power Consumption:**  
  - Active: 750 mW (typical)  
  - Standby: 55 mW (typical)  

### **Descriptions:**
- **Dual-Port Architecture:** Allows simultaneous access from both ports (left and right) for high-speed data transfer.  
- **Asynchronous Operation:** Independent control signals for each port.  
- **Bus Matching:** 8-bit bidirectional data buses on both ports.  
- **Interrupt Signaling:** Supports hardware interrupt generation for mailbox communication.  

### **Features:**
- **High-Speed Performance:** 25 ns access time for fast data processing.  
- **Semaphore Signaling:** Built-in hardware semaphore for port arbitration.  
- **Automatic Power-Down:** Reduces power consumption in standby mode.  
- **Full Compatibility:** TTL-compatible inputs and outputs.  
- **Industrial-Grade Options:** Available in extended temperature ranges (not for the L25TDB variant).  

This SRAM is commonly used in applications requiring shared memory access, such as communication systems, multiprocessing, and real-time data buffering.  

(Note: The information provided is based on IDT's datasheet for the **IDT7164L25TDB**.)

Application Scenarios & Design Considerations

CMOS STATIC RAM 64K (8K x 8-BIT)

Alternative Part Number

  • CY7C199-25PC --: 32K x 8 asynchronous SRAM with 25 ns access time, functionally equivalent to the IDT7164 and pin-compatible in most DIP-28 sockets.
  • AS7C256-25PC --: 32K x 8 low-power CMOS SRAM with 25 ns speed grade, direct functional replacement for the IDT7164L25 series.
  • IS61C256AH-25N --: 32K x 8 high-speed CMOS SRAM with 25 ns access time, suitable drop-in alternative for the IDT7164L25TDB.
  • IS61C256AL-25T --: 32K x 8 high-speed SRAM with 25 ns access time, matching the density, speed grade and interface of the original device.

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