Functional Description[1]

The CY7C197D is a high-performance CMOS static RAM organized as 256K words by 1 bit. Easy memory expansion is provided by an active LOW Chip Enable (CE) and three-state drivers. The CY7C197D has an automatic power-down feature, reducing the power consumption when deselected.

Features

• Pin- and function-compatible with CY7C197B

• High speed

— tAA = 10 ns

• CMOS for optimum speed/power

• Low active power

— ICC = 60 mA @ 10 ns

• Low CMOS standby power

— ISB2 = 3 mA

• TTL-compatible inputs and outputs

• Data retention at 2.0V

• Automatic power-down when deselected

• Available in Pb-Free Packages