AS7C1024B 查看數據表（PDF） - Alliance Semiconductor
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AS7C1024B Datasheet PDF : 9 Pages
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AS7C1024B
®
Read cycle (over the operating range)3,9,12
-10
-12
-15
-20
Parameter
Symbol Min Max Min Max Min Max Min Max Unit Notes
Read cycle time
tRC
Address access time
tAA
Chip enable (CE1) access time tACE1
Chip enable (CE2) access time tACE2
Output enable (OE) access time tOE
Output hold from address change tOH
CE1 Low to output in low Z
tCLZ1
CE2 High to output in low Z
tCLZ2
CE1 Low to output in high Z tCHZ1
CE2 Low to output in high Z tCHZ2
OE Low to output in low Z
tOLZ
OE High to output in high Z
tOHZ
Power up time
tPU
Power down time
tPD
10 - 12 – 15 – 20 – ns
- 10 – 12 – 15 – 20 ns 3
- 10 – 12 – 15 – 20 ns 3, 12
- 10 – 12 – 15 – 20 ns 3, 12
- 5 – 6 – 7 – 8 ns
3 - 3 – 3 – 3 – ns 5
3 - 3 – 3 – 3 – ns 4, 5, 12
3 - 3 – 3 – 3 – ns 4, 5, 12
- 4 – 5 – 6 – 7 ns 4, 5, 12
- 4 – 5 – 6 – 7 ns 4, 5, 12
0 - 0 – 0 – 0 – ns 4, 5
– 4 – 5 – 6 – 7 ns 4, 5
0 - 0 – 0 – 0 – ns 4, 5, 12
– 10 – 12 – 15 – 20 ns 4, 5, 12
Key to switching waveforms
Rising input
Falling input
Undefined / don’t care
Read waveform 1 (address controlled)3,6,7,9,12
tRC
Address
tAA
DOUT
tOH
Data valid
Read waveform 2 (CE1, CE2, and OE controlled)3,6,8,9,12
CE1
tRC1
CE2
tOE
OE
tOLZ
tOHZ
DOUT
tACE1, tACE2
Data valid
tCHZ1, tCHZ2
Current
supply
tCLZ1, tCLZ2
tPU
50%
tPD
ICC
50%
ISB
3/26/04, v 1.2
Alliance Semiconductor
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