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參數(shù)資料
| 型號： | UPD4416016G5-A15-9JF |
| 廠商： | NEC Corp. |
| 英文描述： | CONNECTOR ACCESSORY |
| 中文描述： | 連接器附件 |
| 文件頁數(shù)： | 6/12頁 |
| 文件大?。?/td> | 92K |
| 代理商： | UPD4416016G5-A15-9JF |
Data Sheet M14081EJ5V0DS
6
μ
PD4416016
Read Cycle
Parameter
Symbol
-A15
-A17
Unit
Notes
MIN.
MAX.
MIN.
MAX.
Read cycle time
t
RC
15
17
ns
Address access time
t
AA
15
17
ns
1
/CS access time
t
ACS
15
17
ns
/OE access time
t
OE
7
8
ns
/LB, /UB access time
t
ABD
7
8
ns
Output hold from address change
t
OH
3
3
ns
/CS to output in low impedance
t
CLZ
3
3
ns
2, 3
/OE to output in low impedance
t
OLZ
0
0
ns
/LB, /UB to output in low impedance
t
BLZ
0
0
ns
/CS to output in high impedance
t
CHZ
7
8
ns
/OE to output hold in high impedance
t
OHZ
7
8
ns
/LB, /UB to output hold in high impedance
t
BHZ
7
8
ns
Notes
1.
See the output load shown in
Figure 1
.
2.
Transition is measured at
±
200 mV from steady-state voltage with the output load shown in
Figure 2
.
3.
These parameters are periodically sampled and not 100% tested.
Read Cycle Timing Chart 1 (Address Access)
t
OH
t
RC
t
AA
Address (Input)
I/O (Output)
Previous data out
Data out
Remarks 1.
In read cycle, /WE should be fixed to high level.
2.
/CS = /OE= /LB (or /UB) = V
IL
Read Cycle Timing Chart 2 (/CS Access)
Address (Input)
t
RC
t
AA
t
OLZ
/CS (Input)
I/O (Output)
Data output
t
OHZ
High impedance
t
ACS
/OE (Input)
t
OE
t
CLZ
t
CHZ
High impedance
t
BLZ
t
ABD
t
BHZ
/LB, /UB (Input)
Caution
Remark
Address valid prior to or coincident with /CS low level input.
In read cycle, /WE should be fixed to high level.
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