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Cypress Semiconductor Electronic Components Datasheet

CY7C1041BN Datasheet

256K x 16 Static RAM

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CY7C1041BN
256K × 16 Static RAM
256K × 16 Static RAM
Features
Temperature range:
Commercial: 0 °C to 70 °C
Automotive-A: –40 °C to 85 °C
High speed
tAA = 15 ns
Low active power
Low CMOS standby power
2.75 mW (max.)
2.0 V data retention (400 W at 2.0 V retention)
Automatic power-down when deselected
TTL-compatible inputs and outputs
Easy memory expansion with CE and OE features
Available in Pb-free and non Pb-free 44-pin TSOP II and
molded 44-pin (400-Mil) SOJ packages
Logic Block Diagram
A0
A1
A2
AA34
A5
A6
AA78
Input Buffer
256K x 16
Array
Column
Decoder
Functional Description
The CY7C1041BN is a high-performance CMOS static RAM
organized as 262,144 words by 16 bits.
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 I/O pins (I/O0 through I/O7), is written into
the location specified on the address pins (A0 through A17). If
Byte High Enable (BHE) is LOW, then data from I/O pins (I/O8
through I/O15) is written into the location specified on the address
pins (A0 through A17).
Reading from the device is accomplished by taking Chip Enable
(CE) and Output Enable (OE) LOW while forcing the Write
Enable (WE) HIGH. If Byte Low Enable (BLE) is LOW, then data
from the memory location specified by the address pins will
appear on I/O0 to I/O7. If Byte High Enable (BHE) is LOW, then
data from memory will appear on I/O8 to I/O15. See the truth table
at the back of this data sheet for a complete description of read
and write modes.
The input/output pins (I/O0 through I/O15) 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,
and WE LOW).
The CY7C1041BN is available in a standard 44-pin 400-mil-wide
body width SOJ and 44-pin TSOP II package with center power
and ground (revolutionary) pinout.
For a complete list of related documentation, click here.
I/O0–I/O7
I/O8–I/O15
BHE
WE
CE
OE
BLE
Cypress Semiconductor Corporation • 198 Champion Court
Document Number: 001-06496 Rev. *L
• San Jose, CA 95134-1709 • 408-943-2600
Revised April 15, 2019


Cypress Semiconductor Electronic Components Datasheet

CY7C1041BN Datasheet

256K x 16 Static RAM

No Preview Available !

CY7C1041BN
Contents
Selection Guide ................................................................ 3
Pin Configurations ........................................................... 3
Maximum Ratings ............................................................. 4
Operating Range ............................................................... 4
Electrical Characteristics ................................................. 4
Capacitance ...................................................................... 5
AC Test Loads and Waveforms ....................................... 5
Data Retention Characteristics ....................................... 5
Data Retention Waveform ................................................ 5
Switching Characteristics ................................................ 6
Switching Waveforms ...................................................... 7
Truth Table ...................................................................... 10
Ordering Information ...................................................... 11
Ordering Code Definitions ......................................... 11
Package Diagram ............................................................ 12
Acronyms ........................................................................ 13
Document Conventions ................................................. 13
Units of Measure ....................................................... 13
Document History Page ................................................. 14
Sales, Solutions, and Legal Information ...................... 16
Worldwide Sales and Design Support ....................... 16
Products .................................................................... 16
PSoC® Solutions ...................................................... 16
Cypress Developer Community ................................. 16
Technical Support ..................................................... 16
Document Number: 001-06496 Rev. *L
Page 2 of 16


Part Number CY7C1041BN
Description 256K x 16 Static RAM
Maker Cypress Semiconductor
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CY7C1041BN Datasheet PDF






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