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