MS62256H-15NC 查看數據表（PDF） - Mosel Vitelic, Corp
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MS62256H-15NC Datasheet PDF : 9 Pages
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MOSEL-VITELIC
MS62256H
Pin Descriptions
A0 - A14
Address Inputs
These 15 address inputs select one of the 32768
8-bit words in the RAM.
E
Chip Enable Input
E is active LOW. The chip enable must be active
to read from or write to the device. If it is not active,
the device is deselected and is in a standby power
mode. The DQ pins will be in the high-impedance
state when deselected.
G
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 impedance state when G is
inactive.
Truth Table
Mode
E
G
W
I/O Operation
Standby
H
X
X
Read
L
L
H
Output
L
H
H
Disabled
Write
L
X
L
High Z
DOUT
High Z
D IN
W
Write Enable Input
The write enable input is active LOW and controls
read and write operations. With the chip enabled,
when W is HIGH and G is LOW, output data will be
present at the DQ pins; when W is LOW, the data
present on the DQ pins will be written into the
selected memory location.
DQ0 - DQ7
Data Input/Output Ports
These 8 bidirectional ports are used to read data
from or write data into the RAM.
VCC
Power Supply
VSS
Ground
Operating Range
Range
Ambient
Temperature
Commercial
0°C to +70°C
Vcc
5V ± 10%
Absolute Maximum Ratings (1)
Symbol
Parameter
VCC Supply Voltage
VIN Input Voltage
VDQ Input/Output Voltage Applied
TBIAS
TSTG
PD
Temperature Under Plastic
Bias
Storage
Plastic
Temperature
Power Dissipation
IOUT DC Output Current
Rating Units
-0.3 to 7
-0.3 to 7 V
-0.3 to 6
-10 to +125 °C
-40 to +150 °C
1.2
W
50
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 and degrade performance characteristics.
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