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IDT7140LA55P from IDT

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IDT7140LA55P

Manufacturer: IDT

HIGH-SPEED 1K x 8 DUAL-PORT STATIC RAM

Partnumber Manufacturer Quantity Availability
IDT7140LA55P IDT 5704 In Stock

Description and Introduction

HIGH-SPEED 1K x 8 DUAL-PORT STATIC RAM The IDT7140LA55P is a high-speed, low-power, 16K x 8-bit dual-port static RAM (SRAM) manufactured by Integrated Device Technology (IDT). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Organization:** 16K x 8-bit (131,072 bits)  
- **Supply Voltage:** 5V ±10%  
- **Access Time:** 55 ns  
- **Operating Current:** 120 mA (typical)  
- **Standby Current:** 10 mA (typical)  
- **Package:** 48-pin DIP (Dual In-line Package)  
- **Operating Temperature Range:** 0°C to +70°C (Commercial)  

### **Descriptions:**
- The IDT7140LA55P is a dual-port RAM, allowing simultaneous access from two independent ports (Port A and Port B).  
- It is designed for applications requiring high-speed data transfer between two processors or systems.  
- Features include automatic power-down mode for reduced power consumption when not in use.  
- Supports full asynchronous operation with independent control signals for each port.  

### **Features:**
- **True Dual-Port Operation:** Simultaneous reads/writes from both ports.  
- **Interrupt Flags:** Supports hardware interrupt generation for port-to-port communication.  
- **Busy Logic:** Prevents contention during simultaneous writes to the same address.  
- **CE (Chip Enable) Power-Down:** Reduces power consumption when inactive.  
- **TTL-Compatible Inputs/Outputs:** Ensures compatibility with standard logic levels.  
- **Industrial-Standard Pinout:** Matches industry-standard dual-port RAM configurations.  

This device is commonly used in multiprocessor systems, communication buffers, and other applications requiring shared memory access.

Application Scenarios & Design Considerations

HIGH-SPEED 1K x 8 DUAL-PORT STATIC RAM

Alternative Part Number

  • CY7C199-55PC --: Pin-compatible 32K x 8 asynchronous SRAM with 55 ns access time, a direct functional replacement for the IDT7140LA55P.
  • AS7C256-55PC --: 32K x 8 low-power CMOS SRAM with 55 ns speed grade, widely used as a drop-in substitute for IDT 7140 series parts.
  • IS61C256-55PC --: 32K x 8 high-speed CMOS SRAM with 55 ns access time and compatible pinout, suitable as an alternative source.

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