Functional Description[1]
The CY62256 is a high-performance CMOS static RAM organized as 32K words by 8 bits.

FEATUREs
• Temperature Ranges
    — Commercial: 0°C to 70°C
    — Industrial: –40°C to 85°C
    — Automotive: –40°C to 125°C
• High speed: 55 ns and 70 ns
• Voltage range: 4.5V–5.5V operation
• Low active power (70 ns, LL version, Com’l and Ind’l)
    — 275 mW (max.)
• Low standby power (70 ns, LL version, Com’l and Ind’l)
    — 28 µW (max.)
• Easy memory expansion with CE and OE features
• TTL-compatible inputs and outputs
• Automatic power-down when deselected
• CMOS for optimum speed/power
• Package available in a standard 450-mil-wide (300-mil body width) 28-lead narrow SOIC, 28-lead TSOP-1, 28-lead reverse TSOP-1, and 600-mil 28-lead PDIP packages