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CY7C187

Features: •High speed-15 ns•CMOS for optimum speed/power•Low active power-495 mW•Low standby power-220 mW•TTL compatible inputs and outputs•Automatic power-down when deselectedPinoutSpecifications(Above which the useful life may be impaired. For user guide-lines...

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SeekIC No. : 004320241 Detail

CY7C187: Features: •High speed-15 ns•CMOS for optimum speed/power•Low active power-495 mW•Low standby power-220 mW•TTL compatible inputs and outputs•Automatic power-down w...

CY7C187 Data Sheet

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Part Number:
CY7C187
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/4/28

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Product Details

Description



Features:

•High speed
-15 ns
•CMOS for optimum speed/power
•Low active power
-495 mW
•Low standby power
-220 mW
•TTL compatible inputs and outputs
•Automatic power-down when deselected


Pinout

Connection Diagram


Specifications

(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 22 to Pin 11)...........................................0.5V to +7.0V
DC Voltage Applied to Outputs
in High Z State[2]..........................................0.5V to +7.0V
DC Input Voltage[2]......................................0.5V to +7.0V
Output Current into Outputs (LOW).............................20 mA
Static Discharge Voltage...........................................>2001V
(per MILSTD883, Method 3015).
Latch-Up Current.....................................................>200 mA


Description

The CY7C187 is a high-performance CMOS static RAM orga-nized as 65,536 words x 1 bit. Easy memory expansion is pro-vided by an active LOW Chip Enable (CE</a>) and three-state driv-ers. The CY7C187 has an automatic power-down feature,reducing the power consumption by 56% when deselected.

Writing to theCY7C187 is accomplished when the Chip Enable(CE</a>) and Write Enable (WE</a>) inputs are both LOW. Data on theinput pin (DIN) is written into the memory location specified on the address pins (A0 through A15).

Reading the CY7C187 is accomplished by taking the Chip Enable (CE</a>) LOW, while Write Enable (WE</a>) remains HIGH. Under these conditions, the contents of the memory location speci-fied on the address pin will appear on the data output (DOUT)pin.

The output pin of CY7C187 stays in high-impedance state when Chip En-able (CE</a>) is HIGH or Write Enable (WE</a>) is LOW.

The CY7C187 utilizes a die coat to insure alpha immunity.




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