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IDT71215S9PF from IDT

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IDT71215S9PF

Manufacturer: IDT

BiCMOS StaticRAM 240K (16K x 15-BIT) CACHE-TAG RAM For the PentiumO Processor

Partnumber Manufacturer Quantity Availability
IDT71215S9PF IDT 720 In Stock

Description and Introduction

BiCMOS StaticRAM 240K (16K x 15-BIT) CACHE-TAG RAM For the PentiumO Processor The **IDT71215S9PF** is a high-speed asynchronous dual-port static RAM (SRAM) manufactured by **Integrated Device Technology (IDT)**. Below are the specifications, descriptions, and features based on the available knowledge base:

### **Specifications:**  
- **Type:** Dual-Port SRAM  
- **Density:** 64K (65,536 bits)  
- **Organization:** 8K x 8-bit  
- **Operating Voltage:** 5V ±10%  
- **Access Time:** 15 ns (maximum)  
- **Operating Temperature Range:** Commercial (0°C to +70°C)  
- **Package:** 28-pin Plastic Leaded Chip Carrier (PLCC)  
- **I/O Type:** TTL-compatible  
- **Power Dissipation:**  
  - Active: 750 mW (typical)  
  - Standby: 55 mW (typical)  

### **Descriptions:**  
- The **IDT71215S9PF** is designed for applications requiring high-speed data transfer between two buses.  
- It features independent access to the same memory space from two separate ports, enabling simultaneous read/write operations.  
- Suitable for communication buffers, multiprocessor systems, and data acquisition systems.  

### **Features:**  
- **True Dual-Port Operation:** Allows simultaneous reads and writes from both ports.  
- **Asynchronous Operation:** No clock required for data access.  
- **Semaphore (Flag) Logic:** Supports inter-processor communication.  
- **Busy Output:** Prevents contention during simultaneous writes.  
- **Low Power Consumption:** CMOS technology reduces power usage in standby mode.  
- **Industrial-Standard Pinout:** Compatible with similar dual-port SRAMs.  

This information is strictly based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

BiCMOS StaticRAM 240K (16K x 15-BIT) CACHE-TAG RAM For the PentiumO Processor

Alternative Part Number

  • CY7C025AV-25AXC --: Cypress dual-port SRAM in the same 25 ns speed grade and 100-pin TQFP package, functionally compatible with the IDT71215 dual-port RAM family.
  • IS61LPS51236A-200TQLI --: ISSI high-speed synchronous SRAM with comparable density and timing, commonly used as a drop-in substitute for IDT SRAM parts in similar sockets.
  • 70V25L25PFG --: Renesas dual-port SRAM with matching 25 ns access time and TQFP footprint, a well-known second-source option for IDT 71215-series devices.
  • CY7C006A-20AC --: Pin-compatible dual-port SRAM with similar 16Kx8 density and 20 ns speed, widely available as a drop-in functional replacement.
  • IS61C1024AL-20T --: High-speed 128Kx8 asynchronous SRAM with comparable access time and 5V operation, suitable for designs needing equivalent memory performance.
  • AS7C1024B-20TC --: Legacy-compatible 128Kx8 SRAM with 20 ns access time, often used as a second-source replacement for older IDT SRAM parts.

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