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CY7C1021BN Datasheet(PDF) 1 Page - Cypress Semiconductor

Part # CY7C1021BN
Description  1-Mbit (64 K 횞 16) Static RAM
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Manufacturer  CYPRESS [Cypress Semiconductor]
Direct Link  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

CY7C1021BN Datasheet(HTML) 1 Page - Cypress Semiconductor

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CY7C1021BN, CY7C10211BN
1-Mbit (64 K × 16) Static RAM
Cypress Semiconductor Corporation
198 Champion Court
San Jose
, CA 95134-1709
408-943-2600
Document #: 001-06494 Rev. *D
Revised July 26, 2011
1-Mbit (64 K × 16) Static RAM
Features
Temperature ranges
Commercial: 0 °C to 70 °C
Industrial: –40 °C to 85 °C
Automotive-A: –40 °C to 85 °C
Automotive-E: –40 °C to 125 °C
High speed
tAA = 15 ns (Automotive)
Complementary metal oxide semiconductor (CMOS) for
optimum speed/power
Low active power
825 mW (maximum)
Automatic power down when deselected
Independent control of upper and lower bits
Available in Pb-free and non Pb-free 44-pin TSOP II and 44-pin
400-mil-wide SOJ
Functional Description
The CY7C1021BN/CY7C10211BN is a high performance CMOS
static RAM organized as 65,536 words by 16 bits. This device
has an automatic power down feature that significantly reduces
power consumption when deselected.
Writing to the device is accomplished by taking Chip Enable (CE)
and Write Enable (WE) inputs LOW. If Byte Low Enable (BLE) is
LOW, then data from the input/output (I/O) pins (I/O1 through
I/O8), is written into the location specified on the address pins (A0
through A15). If Byte High Enable (BHE) is LOW, then data from
I/O pins (I/O9 through I/O16) is written into the location specified
on the address pins (A0 through A15).
Reading from the device is accomplished by taking CE and
Output Enable (OE) LOW while forcing WE HIGH. If BLE is LOW,
then data from the memory location specified by the address pins
appears on I/O1 to I/O8. If BHE is LOW, then data from memory
appears on I/O9 to I/O16. See the Truth Table on page 9 for a
complete description of read and write modes.
The I/O pins (I/O1 through I/O16) are placed in a high impedance
state when the device is deselected (CE HIGH), the outputs are
disabled (OE HIGH), the BHE and BLE are disabled (BHE, BLE
HIGH), or during a write operation (CE LOW, WE LOW).
The CY7C1021BN/CY7C10211BN is available in standard
44-pin TSOP type II and 44-pin 400-mil-wide SOJ packages.
Use part number CY7C1021BN when ordering 15 ns tAA.
64K x 16
RAM Array
I/O1–I/O8
A7
A6
A5
A4
A3
A0
Column Decoder
512 X 2048
Data In Drivers
OE
A2
A1
I/O9–I/O16
CE
WE
BLE
BHE
Logic Block Diagram
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