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BS616UV8021 Datasheet(PDF) 2 Page - Brilliance Semiconductor

Part # BS616UV8021
Description  Ultra Low Power/Voltage CMOS SRAM 512K x 16 or 1M x 8 bit switchable
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Manufacturer  BSI [Brilliance Semiconductor]
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BS616UV8021 Datasheet(HTML) 2 Page - Brilliance Semiconductor

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Revision 2.2
April 2001
2
Name
Function
A0-A18 Address Input
These 19 address inputs select one of the 524,288 x 16-bit words in the RAM.
SAE Address Input
This address input incorporate with the above 19 address inputs select one of the
1,048,576 x 8-bit bytes in the RAM if the CIO is LOW. Don't use when CIO is HIGH.
CIO x8/x16 select input
This input selects the organization of the SRAM. 524,288 x 16-bit words configuration
is selected if CIO is HIGH. 1,048,576 x 8-bit bytes configuration is selected if CIO is
LOW.
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 a 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 impedance state when OE is inactive.
LB and UB Data Byte Control Input
Lower byte and upper byte data input/output control pins. The chip is deselected when
both LB and UB pins are HIGH.
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
Gnd
Ground
PIN DESCRIPTIONS
Preliminary
Preliminary
BSI
BS616UV8021
R0201-BS616UV8021


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