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BH62UV1600 Datasheet(PDF) 2 Page - Brilliance Semiconductor

Part # BH62UV1600
Description  Ultra Low Power/High Speed CMOS SRAM 2M X 8 bit
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Manufacturer  BSI [Brilliance Semiconductor]
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BH62UV1600 Datasheet(HTML) 2 Page - Brilliance Semiconductor

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BSI
BH62UV1600
R0201-BH62UV1600
Revision
1.0
Jul.
2005
2
n PIN DESCRIPTIONS
Name
Function
A0-A20 Address Input
These 21 address inputs select one of the 2,048K x 8 bit in the RAM
CE1 Chip Enable 1 Input
CE2 Chip Enable 2 Input
CE1 is active LOW and CE2 is active HIGH. Both chip enables must be active when
data read from or write to the device. If either chip enable is not active, the device is
deselected and is in standby power mode. The DQ pins will be in the high impedance
state when the device is deselected.
WE Write Enable Input
The write enable input is active LOW and controls read and write operations. With the
chip selected, when WE is HIGH and OE is LOW, output data will be present on the
DQ pins; when WE is LOW, the data present on the DQ pins will be written into the
selected memory location.
OE Output Enable Input
The output enable input is active LOW. If the output enable is active while the chip is
selected and the write enable is inactive, data will be present on the DQ pins and they
will be enabled. The DQ pins will be in the high impendence state when OE is inactive.
DQ0-DQ7 Data Input/Output
Ports
8 bi-directional ports are used to read data from or write data into the RAM.
VCC
Power Supply
VSS
Ground
n TRUTH TABLE
MODE
CE1
CE2
WE
OE
I/O OPERATION
VCC CURRENT
H
X
X
X
Chip De-selected
(Power Down)
X
L
X
X
High Z
ICCSB, ICCSB1
Output Disabled
L
H
H
H
High Z
ICC
Read
L
H
H
L
DOUT
ICC
Write
L
H
L
X
DIN
ICC
NOTES: H means VIH; L means VIL; X means don’t care (Must be VIH or VIL state)
n ABSOLUTE MAXIMUM RATINGS
(1)
SYMBOL
PARAMETER
RATING
UNITS
VTERM
Terminal Voltage with
Respect to GND
-0.5
(2) to 4.6V
V
TBIAS
Temperature Under
Bias
-40 to +125
OC
TSTG
Storage Temperature
-60 to +150
OC
PT
Power Dissipation
1.0
W
IOUT
DC Output Current
20
mA
1.
Stresses greater than those listed under ABSOLUTE MAXIMUM
RATINGS may cause permanent damage to the device. This is a
stress rating only and functional operation of the device at these
or any other conditions above those indicated in the operational
sections of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
reliability.
2.
–2.0V in case of AC pulse width less than 30 ns
n OPERATING RANGE
RANG
AMBIENT
TEMPERATURE
VCC
Commercial
0
OC to + 70OC
1.65V ~ 3.6V
Industrial
-25
OC to + 85OC
1.65V ~ 3.6V
n CAPACITANCE
(1) (T
A = 25
OC, f = 1.0MHz)
SYMBOL PAMAMETER CONDITIONS MAX. UNITS
CIN
Input
Capacitance
VIN = 0V
10
pF
CIO
Input/Output
Capacitance
VI/O = 0V
15
pF
1.
This parameter is guaranteed and not 100% tested.


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