MB84257A

The MB84257A is a kind of 32,768-word by 8-bit static random access memeory fabricated with a CMOS silicon gate process. The memory utlizes asynchronous circuitry and may be maintained in any state for an indefinite period of time. It is suitable for use in microprocessor systems and other applications where fast access time and ease of use are required. The device offers the advantages of low power dissipation, low cost and high performance.

There are some features about MB84257A as follows: (1)32,768*8 bits; (2)fast access time; (3)completely static operation: no clock required; (4)TTL compatible inputs/outputs; (5)three state outputs; (6)single +5 V power supply, ±10% tolerance; (7)low power standby; (8)data retention: 2.0 V min; (9)standard 28-pin plastic package.

The following is about the absolute maximum ratings of MB84257A: (1)supply voltage, VCC: -0.5 to +7.0 V; (2)input voltage, VIN: -0.5 to VCC+0.5 V; (3)output voltage, VI/O: -0.5 to VCC+0.5 V; (4)temperature under bias, TBIAS: -10 to +85; (5)storage temperature, TSTG: -40 to +125.