Functional Description

The CY62148BN is a high-performance CMOS static RAM organized as 512K words by 8 bits. Easy memory expansion is provided by an active LOW Chip Enable (CE), an active LOW Output Enable (OE), and three-state drivers. This device has an automatic power-down feature that reduces power consumption by more than 99 when deselected.

Features

• High Speed

— 70 ns

• 4.5V–5.5V operation

• Low active power

— Typical active current: 2.5 mA @ f = 1 MHz

— Typical active current:12.5 mA @ f = fmax(70 ns)

• Low standby current

• Automatic power-down when deselected

• TTL-compatible inputs and outputs

• Easy memory expansion with CE and OE features

• CMOS for optimum speed/power

• Available in standard lead-free and non-lead-free

32-lead (450-mil) SOIC, 32-lead TSOP II and 32-lead

Reverse TSOP II packages