1-Mbit (128 K x 8) Static RAM - Cypress Semiconductor
Description
CY7C109D CY7C1009D
1-Mbit (128 K × 8) Static RAM
1-Mbit (128 K × 8) Static RAM
Features
■ Pin- and function-compatible with CY7C109B/CY7C1009B
■ High speed ❐ tAA = 10 ns
■ Low active power ❐ ICC = 80 mA at 10 ns
■ Low CMOS standby power ❐ ISB2 = 3 mA
■ 2.
0 V Data Retention
■ Automatic power-down when deselected
■ TTL-compatible inputs and outputs
■ Easy memory expansion with CE1, CE2 and OE options ■ CY7C109D available in Pb-free 32-pin 400-Mil wide Molded
SOJ and 32-pin TSOP I packages.
CY7C1009D available in Pb-free 32-pin 300-Mil wide Molded SOJ package
Functional Description
The CY7C109D/CY7C1009D [1] is a high-performance CMOS static RAM organized as 131,072 words by 8 bits.
Easy memory expansion is provided by an active LOW Chip Enable (CE1), an active HIGH Chip Enable (CE2), an active LOW Output Enable
Logic Block Diagram
(OE), and tri-state drivers.
The eight input and output pins (I/O0 through I/O7) are placed in a high-impedance state when:
■ Dese...
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