HIGH-SPEED 16K x 16 DUAL-PORT STATIC RAM WITH INTERRUPT The IDT70261S55PF is a high-speed, low-power, dual-port static RAM (SRAM) manufactured by Integrated Device Technology (IDT). Below are the key specifications, descriptions, and features:
### **Specifications:**
- **Density:** 16K x 16 (262,144 bits)
- **Organization:** Dual-port, 16-bit wide
- **Speed:** 55 ns access time
- **Voltage Supply:** 5V ±10%
- **Operating Temperature:** Commercial (0°C to +70°C)
- **Package:** 100-pin TQFP (Thin Quad Flat Pack)
- **I/O Type:** 5V TTL-compatible
### **Descriptions:**
- The IDT70261S55PF is a dual-port SRAM designed for high-speed data transfer between two asynchronous buses.
- It supports simultaneous read and write operations from both ports with collision detection.
- Ideal for applications requiring shared memory in multiprocessor systems, communication buffers, and data acquisition.
### **Features:**
- **True Dual-Port Operation:** Allows independent read/write access from both ports simultaneously.
- **Semaphore Signaling:** Includes hardware semaphores for inter-processor communication.
- **Busy Flag:** Indicates when a simultaneous write collision occurs.
- **Low Power Consumption:** CMOS technology ensures efficient power usage.
- **High-Speed Access:** 55 ns access time for fast data retrieval.
- **Interrupt Control:** Supports mailbox interrupts for processor communication.
- **Industrial-Grade Options:** Available in extended temperature ranges (not applicable to the S55PF variant).
This device is commonly used in networking, telecommunications, and embedded systems where shared memory access is required.
