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STC62WV51216FC Datasheet(PDF) 2 Page - List of Unclassifed Manufacturers

Part # STC62WV51216FC
Description  Very Low Power/Voltage CMOS SRAM
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Manufacturer  ETC [List of Unclassifed Manufacturers]
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Revision 2.1
Jan.
2004
2
R0201-
STC62WV51216
Name
Function
A0-A18 Address Input
These 19 address inputs select one of the 524,288 x 16-bit words in the RAM.
CE Chip Enable Input
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 impedance state when OE is inactive.
LB and UB Data Byte Control Input
Lower byte and upper byte data input/output control pins.
D0 - D15 Data Input/Output Ports
These 16 bi-directional ports are used to read data from or write data into the RAM.
Vcc
Power Supply
Vss
Ground
TRUTH TABLE
PIN DESCRIPTIONS
STC
STC62WV51216
CIN
Input
Capacitance
VIN=0V
10
pF
CDQ
Input/Output
Capacitance
VI/O=0V
12
pF
RANGE
AMBIENT
TEMPERATURE
Vcc
Commercial
0
O C to +70O C
2.4V ~ 5.5V
Industrial
-40
O C to +85O C
2.4V ~ 5.5V
ABSOLUTE MAXIMUM RATINGS(1)
OPERATING RANGE
CAPACITANCE (1) (TA = 25oC, f = 1.0 MHz)
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.
1. This parameter is guaranteed and not 100% tested.
SYMBOL
PARAMETER
RATING
UNITS
VTERM
Terminal
Voltage
with
Respect to GND
-0.5 to
Vcc+0.5
V
TBIAS
Temperature Under Bias
-40 to +85
O C
TSTG
Storage Temperature
-60 to +150
O C
PT
Power Dissipation
1.0
W
IOUT
DC Output Current
20
mA
SYMBOL
PARAMETER
CONDITIONS
MAX.
UNIT
CE is active LOW. Chip enables must be active when data read from or write to the
device. if chip enable 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 the device is deselected.
MODE
CE
WE
OE
LB
UB
D0~D7
D8~D15
Vcc CURRENT
H
X
X
X
X
High Z
High Z
ICCSB , ICCSB1
Not selected
(Power Down)
X
X
X
H
H
High Z
High Z
ICCSB , ICCSB1
Output Disabled
L
H
H
X
X
High Z
High Z
ICC
L
L
Dout
Dout
ICC
H
L
High Z
Dout
ICC
Read
L
H
L
L
H
Dout
High Z
ICC
LL
Din
Din
ICC
HL
X
Din
ICC
Write
L
L
X
LH
Din
X
ICC
L
XX
H
H
High Z
High Z
ICC


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