DataSheetWiki


WCMA2008U1X fiches techniques PDF

Weida Semiconductor - 256K x 8 Static RAM

Numéro de référence WCMA2008U1X
Description 256K x 8 Static RAM
Fabricant Weida Semiconductor 
Logo Weida Semiconductor 





1 Page

No Preview Available !





WCMA2008U1X fiche technique
A2008U1X
WCMA2008U1X
Features
• High Speed
— 70ns availability
• Voltage range
— 2.7V–3.6V
• Ultra low active power
— Typical active current: 1 mA @ f = 1MHz
— Typical active current: 7 mA @ f = fmax (70ns speed)
• Low standby power
• Easy memory expansion with CE1,CE2,and OE features
• Automatic power-down when deselected
• CMOS for optimum speed/power
Functional Description
The WCMA2008U1X is a high-performance CMOS static
RAM organized as 256K words by 8 bits. This device features
advanced circuit design to provide ultra-low active current.
This is device is ideal for portable applications. The device also
has an automatic power-down feature that significantly reduc-
Logic Block Diagram
256K x 8 Static RAM
es power consumption by 80% when addresses are not tog-
gling. The device can be put into standby mode reducing pow-
er consumption by more than 99% when deselected (CE1
HIGH or CE2 LOW).
Writing to the device is accomplished by taking Chip Enable
(CE1) and Write Enable (WE) inputs LOW and Chip Enable 2
(CE2) HIGH. 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 A17).
Reading from the device is accomplished by taking Chip En-
able (CE1) and Output Enable (OE) LOW while forcing Write
Enable (WE) and Chip Enable 2 (CE2) HIGH. Under these
conditions, the contents of the memory location specified by
the address pins will appear on the I/O pins.
The eight input/output pins (I/O0 through I/O7) are placed in a
high-impedance state when the device is deselected (CE1
HIGH or CE2 LOW), the outputs are disabled (OE HIGH), or
during a write operation (CE1 LOW and CE2 HIGH and WE
LOW).
The WCMA2008U1X is available in a 36-ball FBGA package.
www.DataSheet4U.com
AAA021
AAAAAAAAA11516890347
CE2 CE1
WE
OE
Data in Drivers
128K x 8
ARRAY
COLUMN
DECODER
POWER
DOWN
I/O0
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7

PagesPages 11
Télécharger [ WCMA2008U1X ]


Fiche technique recommandé

No Description détaillée Fabricant
WCMA2008U1B 256K x 8 Static RAM Weida Semiconductor
Weida Semiconductor
WCMA2008U1X 256K x 8 Static RAM Weida Semiconductor
Weida Semiconductor

US18650VTC5A

Lithium-Ion Battery

Sony
Sony
TSPC106

PCI Bus Bridge Memory Controller

ATMEL
ATMEL
TP9380

NPN SILICON RF POWER TRANSISTOR

Advanced Semiconductor
Advanced Semiconductor


www.DataSheetWiki.com    |   2020   |   Contactez-nous  |   Recherche