CY7C168A-25

(Above which the useful life may be impaired. For user guide-lines, not tested.)
Storage Temperature ......................................−65°C to +150°C
Ambient Temperature with
Power Applied..................................................−55°C to +125°C
Supply Voltage to Ground Potential
(Pin 20 to Pin 10)...................................................−0.5V to +7.0V
DC Voltage Applied to Outputs
in High Z State.......................................................−0.5V to +7.0V
DC Input Voltage...................................................−3.0V to +7.0V

The CY7C168A is a high-performance CMOS static RAM or-ganized as 4096 by 4 bits. Easy memory expansion is providedby an active LOW Chip Enable (CE ) and three-state drivers.The CY7C168A has an automatic power-down feature, reducing the power consum ption by 77% when deselected.

Writing to the  CY7C168A is accomplished when the Chip Select(CE ) and Write Enable (WE ) inputs are both LOW. Data on the four data input/output pins (I/O₀ through I/O₃) is written into the memory location specified on the address pins (A₀ throughA₁₁)

Reading the  CY7C168A  is accomplished by taking the Chip Enable(CE ) LOW, while Write Enable (WE ) remains HIGH. Under these conditions, the contents of the location specified on the address pins will appear on the four data input/output pins(I/O₀ through I/O₃).

The input/output pins of  CY7C168A remain in a high-impedance state when Chip Enable (CE ) is HIGH or Write Enable (WE ) is LOW.

A die coat is used to insure alpha immunity.