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PDF KM68257C Data sheet ( Hoja de datos )
| Número de pieza | KM68257C | |
| Descripción | 32Kx8 Bit High Speed Static RAM | |
| Fabricantes | Samsung semiconductor | |
| Logotipo |  |
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KM68257C/CL
PRELIMINARY
CMOS SRAM
Document Title
32Kx8 Bit High Speed Static RAM(5V Operating), Evolutionary Pin out.
Operated at Commercial Temperature Range.
Revision History
Rev No.
History
Draft Data
Remark
Rev. 0.0
Rev. 1.0
www.DataSheet4U.com
Rev. 2.0
Rev. 3.0
Initial release with Preliminary.
Release to final Data Sheet.
1. Delete Preliminary
Update A.C parameters
2.1. Updated A.C parameters
Items
Previous spec.
(12/15/20ns part)
Updated spec.
(12/15/20ns part)
tOE
- / 8/10ns
- / 7 /9 ns
tCW
- /12/ - ns
- /11/ - ns
tHZ
8/10/10ns
6/7/8ns
tOHZ
- / 8 / - ns
- / 7 / - ns
tDW
- / 9 / - ns
- / 8 / - ns
2.2. Add Voh1=3.95V with the test condition as Vcc=5V±5% at 25°C
3.1. Add 28-TSOP1 Package.
3.2. Add L-version.
3.3. Add Data Rentention Characteristics.
Apr. 1st, 1994
May 14th,1994
Oct. 4th, 1994
Feb. 22th, 1996
Preliminary
Final
Final
Final
The attached data sheets are prepared and approved by SAMSUNG Electronics. SAMSUNG Electronics CO., LTD. reserve the right
to change the specifications. SAMSUNG Electronics will evaluate and reply to your requests and questions on the parameters of this
device. If you have any questions, please contact the SAMSUNG branch office near your office, call or contact Headquarters.
- 1 - Rev 3.0
February-1996
1 page  
KM68257C/CL
WRITE CYCLE
Parameter
Write Cycle Time
Chip Select to End of Write
Address Setup Time
Address Valid to End of Write
Write Pulse Width(OE High)
www.DatWaSrhiteeePt4uUl.sceomWidth(OE Low)
Write Recovery Time
Write to Output High-Z
Data to Write Time Overlap
Data Hold from Write Time
End Write to Output Low-Z
PRELIMINARY
CMOS SRAM
Symbol
tWC
tCW
tAS
tAW
tWP
tWP1
tWR
tWHZ
tDW
tDH
tOW
KM68257C/CL-12
Min Max
12 -
9-
0-
9-
9-
12 -
0-
06
7-
0-
0-
KM68257C/CL-15
Min Max
15 -
11 -
0-
12 -
12 -
15 -
0-
08
8-
0-
0-
KM68257C/CL-20
Min Max
20 -
13 -
0-
13 -
13 -
20 -
0-
08
10 -
0-
0-
Unit
§À
§À
§À
§À
§À
§À
§À
§À
§À
§À
§À
TIMING DIAGRAMS
TIMING WAVE FORM OF READ CYCLE(1)(Address Controlled, CS=OE=VIL, WE=VIH)
ADD
Data Out
tRC
tOH
Previous Data Valid
tAA
Data Valid
- 5 - Rev 3.0
February-1996
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet KM68257C.PDF ] | |
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