HIGH-SPEED 2K x 8 DUAL-PORT STATIC RAM WITH INTERRUPTS The IDT71321SA55PFI is a high-speed 16K x 16 dual-port static RAM (SRAM) manufactured by Integrated Device Technology (IDT). Below are its key specifications, descriptions, and features:
### **Specifications:**
- **Memory Size:** 16K x 16 (262,144 bits)
- **Organization:** Dual-port SRAM
- **Speed:** 55 ns access time
- **Voltage Supply:** 5V ±10%
- **Operating Temperature Range:** Commercial (0°C to +70°C)
- **Package:** 68-pin PLCC (Plastic Leaded Chip Carrier)
- **I/O Type:** TTL-compatible
- **Power Consumption:**
- Active: 1,650 mW (typical)
- Standby: 55 mW (typical)
### **Descriptions:**
- The IDT71321SA55PFI is a dual-port RAM that allows simultaneous access from two independent ports, enabling high-speed data transfer between processors.
- It is designed for applications requiring shared memory in multiprocessing systems, communication buffers, and data acquisition systems.
- The device supports full asynchronous operation, permitting independent clocking for each port.
### **Features:**
- **True Dual-Port Operation:** Both ports can read/write simultaneously.
- **Bus Arbitration:** On-chip arbitration logic prevents data corruption during simultaneous writes.
- **Interrupt Signaling:** Supports mailbox interrupts for inter-processor communication.
- **Semaphore (Flag) Control:** Hardware semaphores for software handshaking.
- **High-Speed Access:** 55 ns access time for fast data processing.
- **Low Power Standby Mode:** Reduces power consumption when inactive.
- **TTL-Compatible Inputs/Outputs:** Ensures easy interfacing with standard logic circuits.
This device is commonly used in networking, telecommunications, and embedded systems requiring high-speed shared memory.
