®
LY61L2568
256K X 8 BIT HIGH SPEED CMOS SRAM
Rev. 1.0
FUNCTIONAL BLOCK DIAGRAM
PIN DESCRIPTION
SYMBOL
DESCRIPTION
A0 - A17
Address Inputs
Vcc
Vss
DQ0 – DQ7 Data Inputs/Outputs
CE#
WE#
OE#
VCC
VSS
Chip Enable Inputs
Write Enable Input
Output Enable Input
Power Supply
256Kx8
MEMORY ARRAY
A0-A17
DECODER
Ground
NC
No Connection
I/O DATA
CIRCUIT
DQ0-DQ7
COLUMN I/O
CE#
WE#
OE#
CONTROL
CIRCUIT
PIN CONFIGURATION
NC
NC
1
2
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
NC
NC
A4
3
NC
A3
4
A5
A2
5
A6
A1
6
A7
A0
7
A8
CE#
DQ0
DQ1
Vcc
Vss
DQ2
DQ3
WE#
A17
A16
A15
A14
A13
NC
8
OE#
DQ7
DQ6
Vss
Vcc
DQ5
DQ4
A9
9
10
11
12
13
14
15
16
17
18
19
20
21
22
A10
A11
A12
NC
NC
NC
NC
NC
TSOP-II
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
2
LYONTEK [ Lyontek Inc. ]
