AS6UA25617-BI 查看數據表（PDF） - Alliance Semiconductor
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AS6UA25617-BI
Alliance Semiconductor
AS6UA25617-BI Datasheet PDF : 9 Pages
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AS6UA25617
Read cycle (over the operating range)
Parameter
Symbol
Read cycle time
Address access time
Chip selects access time
Output enable (OE) access time
Output hold from address change
Chip selects low to output in low Z
Chip selects high to output in high Z
OE low to output in low Z
UB/LB access time
UB/LB low to low Z
UB/LB high to high Z
OE high to output in high Z
Power up time
Power down time
tRC
tAA
tACS1,2
tOE
tOH
tCLZ
tCHZ
tOLZ
tBA
tBLZ
tBHZ
tOHZ
tPU
tPD
Shaded areas indicate preliminary information.
Key to switching waveforms
Rising input
Read waveform 1 (address controlled)
Address
DOUT
tOH
Previous data valid
–55
Min Max
55
–
–
55
–
55
–
25
10
–
10
–
0
20
5
–
–
55
10
–
0
20
0
20
0
–
–
55
–70
Min Max
70
–
–
70
–
70
–
35
10
–
10
–
0
20
5
–
–
70
10
–
0
20
0
20
0
–
–
70
Falling input
tRC
tAA
Data valid
–100
Min Max Unit
100 –
ns
– 100 ns
– 100 ns
–
50 ns
15
–
ns
10
–
ns
0
20 ns
5
–
ns
– 100 ns
10
–
ns
0
20 ns
0
20 ns
0
–
ns
– 100 ns
Undefined/don’t care
tOH
Read waveform 2 (chip selects, OE, UB, LB controlled)
tRC
Address
tAA
OE
tOE
tOLZ
CS1
tLZ
tLZ ttAACCSS11
CS2
tOLZ
tOE
tOH
tOHZ
tHZ
ttOOHHZZ
tOH tHZ
LB, UB
DOUT
tBA
tBLZ
tBHZ
Data valid
Notes
3
3
5
4, 5
4, 5
4, 5
4, 5
4, 5
4, 5
4, 5
4, 5
4
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