Military 32K x 8 CMOS EPROM The WS27C256L-12DMB is a 256K (32K x 8) CMOS EPROM manufactured by WSI (Wafer Scale Integration). Below are its key specifications, descriptions, and features:
### **Specifications:**
- **Organization:** 32K x 8 (256K bits)
- **Access Time:** 120 ns
- **Operating Voltage:** 5V ± 10%
- **Power Consumption:**
- Active: 30 mA (max)
- Standby: 100 µA (max)
- **Operating Temperature Range:** 0°C to +70°C (commercial)
- **Package Type:** 28-pin DIP (Dual In-line Package)
- **Programming Voltage (VPP):** 12.5V
### **Descriptions:**
- The WS27C256L-12DMB is a high-performance CMOS EPROM with a fast access time of 120 ns.
- It is designed for applications requiring non-volatile memory storage.
- Features a single 5V power supply for read operations.
- Includes a transparent lid for UV erasure (requires exposure to UV light for data erasure).
### **Features:**
- **High-Speed Performance:** 120 ns access time.
- **Low Power Consumption:** Optimized for both active and standby modes.
- **CMOS Technology:** Ensures low power and high noise immunity.
- **Single 5V Supply:** Simplifies system design.
- **JEDEC Standard Pinout:** Compatible with industry-standard EPROMs.
- **UV Erasable:** Data can be erased via UV exposure for reprogramming.
- **Three-State Outputs:** Supports bus-oriented systems.
This device is suitable for embedded systems, industrial controls, and other applications requiring reliable non-volatile memory.
