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PDF LY612568 Data sheet ( Hoja de datos )
| Número de pieza | LY612568 | |
| Descripción | 5V 256K X 8 BIT HIGH SPEED CMOS SRAM | |
| Fabricantes | Lyontek | |
| Logotipo |  |
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®
Preliminary 0.2
LY612568
5V 256K X 8 BIT HIGH SPEED CMOS SRAM
REVISION HISTORY
Revision
Rev. 0.1
Rev. 0.2
Description
Preliminary
Revised Test Condition of ISB1/IDR
Revised VTERM to VT1 and VT2
Revised FEATURES & ORDERING INFORMATION
Lead free and green package available to Green package
available
Added packing type in ORDERING INFORMATION
Deleted TSOLDER in ABSOLUTE MAXIMUN RATINGS
Revised PACKAGE OUTLINE DIMENSION
Issue Date
Dec.6.2006
Aug.26.2009
www.DataSheet4U.com
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
0
1 page  
®
Preliminary 0.2
LY612568
5V 256K X 8 BIT HIGH SPEED CMOS SRAM
AC TEST CONDITIONS
Input Pulse Levels
Input Rise and Fall Times
Input and Output Timing Reference Levels
Output Load
0.2V to VCC - 0.2V
3ns
1.5V
CL = 30pF + 1TTL, IOH/IOL = -8mA/16mA
AC ELECTRICAL CHARACTERISTICS
(1) READ CYCLE
PARAMETER
Read Cycle Time
Address Access Time
Chip Enable Access Time
Output Enable Access Time
Chip Enable to Output in Low-Z
Output Enable to Output in Low-Z
Chip Disable to Output in High-Z
Output Disable to Output in High-Z
Output Hold from Address Change
SYM.
tRC
tAA
tACE
tOE
tCLZ*
tOLZ*
tCHZ*
tOHZ*
tOH
LY612568-15
MIN. MAX.
15 -
- 15
- 15
-7
4-
0-
-7
-7
3-
LY612568-20
MIN. MAX.
20 -
- 20
- 20
-8
4-
0-
-8
-8
3-
LY612568-25
MIN. MAX.
25 -
- 25
- 25
-9
4-
0-
-9
-9
3-
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
(2) WRITE CYCLE
PARAMETER
SYM. LY612568-15 LY612568-20
MIN. MAX. MIN. MAX.
Write Cycle Time
tWC 15 - 20 -
Address Valid to End of Write tAW 12 - 16 -
Chip Enable to End of Write
tCW 12 - 16 -
Address Set-up Time
tAS 0 - 0 -
Write Pulse Width
www.DaWtaSrihteeeRt4eUc.coovmery Time
tWP 10 - 11 -
tWR 0 - 0 -
Data to Write Time Overlap
tDW 8 - 9 -
Data Hold from End of Write Time tDH
0-0-
Output Active from End of Write
tOW*
4
-
5
-
Write to Output in High-Z
tWHZ* - 8 - 9
*These parameters are guaranteed by device characterization, but not production tested.
LY612568-25
MIN. MAX.
25 -
20 -
20 -
0-
12 -
0-
10 -
0-
6-
- 10
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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
4
5 Page 
®
Preliminary 0.2
LY612568
5V 256K X 8 BIT HIGH SPEED CMOS SRAM
THIS PAGE IS LEFT BLANK INTENTIONALLY.
www.DataSheet4U.com
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
10
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet LY612568.PDF ] | |
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