HIGH-SPEED 2K x 16 CMOS DUAL-PORT STATIC RAMS The IDT7133SA90J is a high-speed 4K x 16-bit dual-port static RAM (SRAM) manufactured by Integrated Device Technology (IDT). Below are its key specifications, descriptions, and features:
### **Specifications:**
- **Memory Size:** 4K x 16-bit (65,536 bits)
- **Organization:** Dual-port, independently accessible
- **Access Time:** 90 ns
- **Operating Voltage:** 5V ±10%
- **Operating Temperature Range:** Commercial (0°C to +70°C)
- **Package:** 68-pin PLCC (Plastic Leaded Chip Carrier)
- **Power Consumption:**
- Active: 1.5W (typical)
- Standby: 0.55W (typical)
### **Descriptions:**
- The IDT7133SA90J is a high-performance dual-port SRAM designed for applications requiring simultaneous access from two independent buses.
- It provides non-contentious read/write operations from both ports, making it ideal for shared memory systems, communication buffers, and multiprocessor systems.
- The device includes built-in arbitration logic to prevent data corruption during simultaneous write operations to the same memory location.
### **Features:**
- **True Dual-Port Operation:** Allows independent, simultaneous access from both ports.
- **High-Speed Access:** 90 ns maximum access time.
- **Bus Compatibility:** TTL-compatible inputs and outputs.
- **On-Chip Arbitration:** Prevents contention during simultaneous writes.
- **Interrupt Flag:** Supports mailbox communication between ports.
- **Automatic Power-Down:** Reduces power consumption when not in use.
- **Industrial Standard Pinout:** Compatible with other dual-port SRAMs.
This device is commonly used in real-time systems, networking, and data processing applications where fast, concurrent memory access is required.
