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LY62L25716ML-45SLIT Datasheet(PDF) 7 Page - Lyontek Inc.

Part # LY62L25716ML-45SLIT
Description  256K X 16 BIT LOW POWER CMOS SRAM
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Manufacturer  LYONTEK [Lyontek Inc.]
Direct Link  http://www.lyontek.com.tw
Logo LYONTEK - Lyontek Inc.

LY62L25716ML-45SLIT Datasheet(HTML) 7 Page - Lyontek Inc.

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LY62L25716
Rev. 2.6
256K X 16 BIT LOW POWER CMOS SRAM
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
6
®
CAPACITANCE (TA = 25 , f
= 1.0MHz)
PARAMETER
SYMBOL
MIN.
MAX
UNIT
Input Capacitance
CIN
-
6
pF
Input/Output Capacitance
CI/O
-
8
pF
Note : These parameters are guaranteed by device characterization, but not production tested.
AC TEST CONDITIONS
Input Pulse Levels
0.2V to VCC -0.2V
Input Rise and Fall Times
3ns
Input and Output Timing Reference Levels
1.5V
Output Load
CL = 30pF + 1TTL, IOH/IOL = -1mA/2mA
AC ELECTRICAL CHARACTERISTICS
(1) READ CYCLE
PARAMETER
SYM.
LY62L25716-45 LY62L25716-55 LY62L25716-70 UNIT
MIN.
MAX.
MIN.
MAX.
MIN.
MAX.
Read Cycle Time
tRC
45
-
55
-
70
-
ns
Address Access Time
tAA
-
45
-
55
-
70
ns
Chip Enable Access Time
tACE
-
45
-
55
-
70
ns
Output Enable Access Time
tOE
-
25
-
30
-
35
ns
Chip Enable to Output in Low-Z
tCLZ*
10
-
10
-
10
-
ns
Output Enable to Output in Low-Z
tOLZ*
5
-
5
-
5
-
ns
Chip Disable to Output in High-Z
tCHZ*
-
15
-
20
-
25
ns
Output Disable to Output in High-Z
tOHZ*
-
15
-
20
-
25
ns
Output Hold from Address Change
tOH
10
-
10
-
10
-
ns
LB#, UB# Access Time
tBA
-
45
-
55
-
70
ns
LB#, UB# to High-Z Output
tBHZ*
-
20
-
25
-
30
ns
LB#, UB# to Low-Z Output
tBLZ*
10
-
10
-
10
-
ns
(2) WRITE CYCLE
PARAMETER
SYM.
LY62L25716-45 LY62L25716-55 LY62L25716-70
UNIT
MIN.
MAX.
MIN.
MAX.
MIN.
MAX.
Write Cycle Time
tWC
45
-
55
-
70
-
ns
Address Valid to End of Write
tAW
40
-
50
-
60
-
ns
Chip Enable to End of Write
tCW
40
-
50
-
60
-
ns
Address Set-up Time
tAS
0
-
0
-
0
-
ns
Write Pulse Width
tWP
35
-
45
-
55
-
ns
Write Recovery Time
tWR
0
-
0
-
0
-
ns
Data to Write Time Overlap
tDW
20
-
25
-
30
-
ns
Data Hold from End of Write Time
tDH
0
-
0
-
0
-
ns
Output Active from End of Write
tOW*
5
-
5
-
5
-
ns
Write to Output in High-Z
tWHZ*
-
15
-
20
-
25
ns
LB#, UB# Valid to End of Write
tBW
35
-
45
-
60
-
ns
*These parameters are guaranteed by device characterization, but not production tested.


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