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Cypress Semiconductor Electronic Components Datasheet

CY62148ESL Datasheet

4-Mbit (512 K x 8) Static RAM

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CY62148ESL pdf
CY62148ESL MoBL®
4-Mbit (512 K × 8) Static RAM
4-Mbit (512 K × 8) Static RAM
Features
Higher speed up to 55 ns
Wide voltage range: 2.2 V to 3.6 V and 4.5 V to 5.5 V
Ultra low standby power
Typical standby current: 1 µA
Maximum standby current: 7 µA
Ultra low active power
Typical active current: 2 mA at f = 1 MHz
Easy memory expansion with CE and OE features
Automatic power-down when deselected
Complementary metal oxide semiconductor (CMOS) for
optimum speed and power
Available in Pb-free 32-Pin shrunk thin small outline package
(STSOP) package
Functional Description
The CY62148ESL is a high performance CMOS static RAM
organized as 512 K words by 8-bits. This device features
advanced circuit design to provide ultra low active current. This
is ideal for providing More Battery Life™ (MoBL) in portable
applications such as cellular telephones. The device also has an
automatic power-down feature that significantly reduces power
consumption. Placing the device in standby mode reduces
power consumption by more than 99 percent when deselected
(CE HIGH). The eight input and output pins (I/O0 through I/O7)
are placed in a high impedance state when the device is
deselected (CE HIGH), the outputs are disabled (OE HIGH), or
during a write operation (CE LOW and WE LOW).
To write to the device, take Chip Enable (CE) and Write Enable
(WE) inputs LOW. Data on the eight I/O pins (I/O0 through I/O7)
is then written into the location specified on the address pins (A0
through A18).
To read from the device, take Chip Enable (CE) and Output
Enable (OE) LOW while forcing Write Enable (WE) HIGH. Under
these conditions, the contents of the memory location specified
by the address pins appear on the I/O pins.
Logic Block Diagram
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
CE
WE
OE
INPUT BUFFER
512K x 8
ARRAY
COLUMN DECODER
POWER
DOWN
IIO/O00
IIO/O11
IIO/O22
IIO/O33
IIO/O44
IIO/O55
IIO/O66
IIO/O77
Cypress Semiconductor Corporation • 198 Champion Court
wwwD.DocautamSheenett4#U: .0n0et1-50045 Rev. *D
• San Jose, CA 95134-1709 • 408-943-2600
Revised June 29, 2011


Cypress Semiconductor Electronic Components Datasheet

CY62148ESL Datasheet

4-Mbit (512 K x 8) Static RAM

No Preview Available !

CY62148ESL pdf
CY62148ESL MoBL®
Contents
Features ............................................................................. 1
Functional Description ..................................................... 1
Pin Configuration ............................................................. 3
Product Portfolio .............................................................. 3
Maximum Ratings ............................................................. 4
Operating Range ............................................................... 4
Electrical Characteristics ................................................. 4
Capacitance ...................................................................... 5
Thermal Resistance .......................................................... 5
Data Retention Characteristics ....................................... 6
Switching Characteristics ................................................ 7
Switching Waveforms ...................................................... 8
Truth Table ........................................................................ 9
Ordering Information ...................................................... 10
Ordering Code Definitions ............................................. 10
Package Diagram ............................................................ 11
Acronyms ........................................................................ 12
Document Conventions ................................................. 12
Units of Measure ....................................................... 12
Document History Page ................................................. 13
Sales, Solutions, and Legal Information ...................... 14
Worldwide Sales and Design Support ....................... 14
Products .................................................................... 14
PSoC Solutions ......................................................... 14
Document #: 001-50045 Rev. *D
Page 2 of 14


Part Number CY62148ESL
Description 4-Mbit (512 K x 8) Static RAM
Maker Cypress Semiconductor
Total Page 14 Pages
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