®
LY6225616
Rev. 1.5
256K X 16 BIT LOW POWER CMOS SRAM
PIN DESCRIPTION
SYMBOL
DESCRIPTION
Address Inputs
Chip Enable Input
Write Enable Input
Output Enable Input
Lower Byte Control
Upper Byte Control
Power Supply
Ground
FUNCTIONAL BLOCK DIAGRAM
Vcc
Vss
A0 - A17
CE#
DQ0 – DQ15 Data Inputs/Outputs
DECODER
256Kx16
MEMORY ARRAY
A0-A17
WE#
OE#
LB#
UB#
V
CC
V
SS
DQ0-DQ7
Lower Byte
DQ8-DQ15
Upper Byte
I/O DATA
CIRCUIT
COLUMN I/O
CE#
WE#
OE#
LB#
UB#
CONTROL
CIRCUIT
Lyontek Inc.
reserves the rights to change the specifications and products without notice.
5F, No. 2, Industry E. Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan.
TEL: 886-3-6668838
FAX: 886-3-6668836
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