Introduction
The M67025E is a very low power CMOS dual port static RAM organized as 8192 bit × 16. The product is designed to be used as a stand-alone 16-bit dual port RAM or as a combination MASTER/SLAVE dual port for 32-bit or more width systems. The Atmel MASTER/SLAVE dual port approach in memory system applications results in full speed, error free operation without the need of an additional discrete logic.

FEATUREs
• Fast Access Time: 30/45 ns
• Wide Temperature Range: -55°C to +125°C
• Separate Upper Byte and Lower Byte Control for Multiplexed Bus Compatibility
• Expandable Data Bus to 32 bits or More Using Master/Slave Chip Select When Using
   More Than One Device
• On-chip Arbitration Logic
• Versatile Pin Select for Master or Slave:
   – M/S = H for Busy Output Flag On Master
   – M/S = L for Busy Input Flag On Slave
• INT Flag for Port to Port Communication
• Full Hardware Support of Semaphore Signaling Between Ports
• Fully Asynchronous Operation From Either Port
• Battery Back-up Operation: 2V Data Retention
• TTL Compatible
• Single 5V + 10% Power Supply
• No Single Event Latch-up below a LET Threshold of 80 MeV/mg/cm2
• Tested up to a Total Dose of 30 krads (Si) according to MIL STD 883 Method 1019
• Quality grades: QML Q and V with SMD 5962-91617 and ESCC with 9301/050