參數(shù)資料
型號: AS7C3256-20
廠商: Alliance Semiconductor Corporation
英文描述: Quadruple D-Type Flip-Flops With Clear 16-TSSOP -40 to 85
中文描述: 高性能32Kx8 CMOS SRAM的
文件頁數(shù): 4/9頁
文件大小: 301K
代理商: AS7C3256-20
AS7C3256A-8
3/22/05; v.1.0
Alliance Semiconductor
P. 4 of 9
Read cycle (over the operating range)
2,8
Key to switching waveforms
Rising input
Read waveform 1 (address controlled)
2,5,6,8
Read waveform 2 (CE controlled)
2,5,7,8
Parameter
Symbol
t
RC
t
AA
t
ACE
t
OE
t
OH
t
CLZ
t
CHZ
t
OLZ
t
OHZ
t
PU
t
PD
-8
Unit
ns
Notes
Min
8
Max
Read cycle time
Address access time
8
ns
2
Chip enable (CE) access time
8
ns
2
Output enable (OE) access time
Output hold from address change
5
ns
3
ns
4
CE LOW to output in low Z
3
ns
3,4
CE HIGH to output in high Z
3
ns
3,4
OE LOW to output in low Z
0
ns
3,4
OE HIGH to output in high Z
3
ns
3,4
Power up time
Power down time
0
ns
ns
3,4
3,4
10
Undefined output/don’t care
Falling input
Address
D
out
Data valid
t
OH
t
AA
t
RC
Supply
current
CE
OE
D
out
t
RC1
t
OE
t
OLZ
t
ACE
t
CHZ
t
CLZ
t
PU
t
PD
I
CC
I
SB
50%
50%
t
OHZ
Data valid
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