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CY7C197
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DataSheet
General Description

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MFG:CYPRESS Package Cooled:DIP/24

CY7 Series Datasheet download

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Part Number: CY7C197

MFG: CYPRESS

Package Cooled: DIP/24

Description: The CY7C197 is a high-performance CMOS static RAM organized as 256K words by 1 bit. Easy memory expansion is pro

CY7C197 General Description

The CY7C197 is a high-performance CMOS static RAM organized as 256K words by 1 bit. Easy memory expansion is provided by an active LOW Chip Enable (,CE) and three-state drivers. The CY7C197 has an automatic power-down feature, reducing the power consumption by 75% when deselected.

Writing to the device is accomplished when the Chip Enable (,CE) and Write Enable (,WE) inputs are both LOW. Data on the input pin (DIN) is written into the memory location specified on the address pins (A0 through A17).

Reading the device is accomplished by taking chip enable (,CE) LOW while Write Enable (,WE) remains HIGH. Under these conditions the contents of the memory location specified on the address pins will appear on the data output (DOUT) pin. The output pin stays in a high-impedance state when Chip Enable (,CE) is HIGH or Write Enable (,WE) is LOW.

The CY7C197 utilizes a die coat to insure alpha immunity.

CY7C197 Maximum Ratings

(Above which the useful life may be impaired. For user guidelines, 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 24 to Pin 12).................................................  −0.5V to +7.0V
DC Voltage Applied to Outputs
in High Z State[1].......................................   −0.5V to VCC + 0.5V
DC Input Voltage[1].................................... −0.5V to VCC + 0.5V
Output Current into Outputs (LOW).............................       20 mA
Static Discharge Voltage ..........................................        >2001V
(per MIL-STD-883, Method 3015)
Latch-Up Current ....................................................       >200 mA

CY7C197 Features

• High speed
   -12 ns
• CMOS for optimum speed/power
• Low active power
   -880 mW
• Low standby power
   -220 mW
• TTL-compatible inputs and outputs
• Automatic power-down when deselected

CY7C197 Connection Diagram

CY7C197 datasheet

CY7C197
PDF/DataSheet Download

Datasheet: CY7C197
File Size: 144871 KB
Manufacturer: Cypress
Click here to Download

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CY7C197 Relative Products

CY7C196
The CY7C194, CY7C195, and CY7C196 are high-performance CMOS static RAMs organized as 65,536 by 4 bits. Easy memory expansion is provided by active LOW Chip Enable( s) (CE on the CY7C194 and CY7C195, CE1, CE2 on the CY7C196) and three-state drivers.The CY7C19...
CY7C195
The CY7C194, CY7C195, and CY7C196 are high-performance CMOS static RAMs organized as 65,536 by 4 bits. Easy memory expansion is provided by active LOW Chip Enable( s) (CE on the CY7C194 and CY7C195, CE1, CE2 on the CY7C196) and three-state drivers.The CY7C19...
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The CY7C194B-CY7C195B is a high-performance CMOS Asynchronous SRAM organized as 64K × 4 bits that supports an asynchronous memory interface. The CY7C194B-CY7C195B's features an automatic power-down feature that significantly reduces power consumption when de...
CY7C194
The CY7C194, CY7C195, and CY7C196 are high-performance CMOS static RAMs organized as 65,536 by 4 bits. Easy memory expansion is provided by active LOW Chip Enable( s) (CE on the CY7C194 and CY7C195, CE1, CE2 on the CY7C196) and three-state drivers. TheCY7C19...
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