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.
