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參數(shù)資料
| 型號(hào)： | 8R512SEA0202C25 |
| 廠商： | WHITE ELECTRONIC DESIGNS CORP |
| 元件分類(lèi)： | SRAM |
| 英文描述： | 64K X 8 MULTI DEVICE SRAM CARD, 250 ns, UUC68 |
| 封裝： | CARD-68 |
| 文件頁(yè)數(shù)： | 10/11頁(yè) |
| 文件大?。?/td> | 316K |
| 代理商： | 8R512SEA0202C25 |
8
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
White Electronic Designs
SEA01-SEA04
February 2007
Rev. 4
AC CHARACTERISTICS
Write Timing Parameters
150ns
SYM (PCMCIA)
Parameter
Min
Max
Unit
tCW
Write Cycle Time
150
ns
tw(WE)
Write Pulse Width
80
ns
tsu(A)
Address Setup Time
20
ns
tsu(A-WEH)
Address Setup Time for WE#
100
ns
tsu(CE-WEH)
Card Enable Setup Time for WE#
100
ns
tsu(D-WEH)
Data Setup Time for WE#
50
ns
th(D)
Data Hold Time
20
ns
trec(WE)
Write Recover Time
20
ns
tdis(WE)
Output Disable Time from WE#
75
ns
tdis(OE)
Output Disable Time from OE#
75
ns
ten(WE)
Output Enable Time from WE#
5
ns
tdis(OE)
Output Enable Time from OE#
5
ns
tsu(OE-WE)
Output Enable Setup from WE#
10
ns
th(OE-WE)
Output Enable Hold from WE#
10
ns
tsu(CE)
Card Enable Setup Time from OE#
0
ns
th(CE)
Card Enable Hold Time
20
ns
Note: AC timing diagrams and characteristics are guaranteed to meet or exceed PCMCIA 2.1 specications.
Write Timing Diagram
Note:
1. Signal may be high or low in this area.
2. When the data I/O pins are in the output state, no signals shall be
applied to the data pins (D15 -D0) by the host system.
th(OE-WE)
NOTE 1
CE1#, CE2#
NOTE 1
tsu(CE-WEH)
tc(W)
A [25::0], REG#
tw(WE)
tdis(WE)
th(D)
D[15::0](Din)
DATA INPUT
tsu(A)
tsu(A-WEH)
OE#
tsu(CE)
tsu(D-WEH)
trec(WE)
th(CE)
tsu(OE-WE)
tdis(OE)
D[15::0](Dout)
ten(OE)
ten(WE)
NOTE 2
WE#
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