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參數(shù)資料
| 型號： | UPD485505G-25 |
| 廠商： | NEC Corp. |
| 英文描述： | LINE BUFFER 5K-WORD BY 8-BIT |
| 中文描述： | 行緩沖區(qū)5K - Word的8位 |
| 文件頁數(shù)： | 9/20頁 |
| 文件大?。?/td> | 174K |
| 代理商： | UPD485505G-25 |
μ
PD485505
9
Data Sheet M10059EJ7V0DS00
Notes 1.
AC measurements assume t
T
= 5 ns.
2.
AC Characteristics test condition
Input Timing Specification
Output Timing Specification
Output Loads for Timing
3.
Input timing reference levels = 1.5 V. Output timing reference levels; V
OH
= 2.0 V, V
OL
= 0.8 V.
4.
t
LZ
and t
HZ
are measured at
±
200 mV from the steady state voltage. Under any conditions, t
LZ
≥
t
HZ
.
5.
If either t
RS
or t
RH
is less than the specified value, reset operations are not guaranteed.
6.
If either t
RN1
or t
RN2
is less than the specified value, reset operations may extend to cycles preceding or
following the period of reset operations.
7.
If either t
WES
or t
WEH
is less than the specified value, write disable operations are not guaranteed.
8.
If either t
WEN1
or t
WEN2
is less than the specified value, internal write disable operations may extend to cycles
preceding or following the period of write disable operations.
9.
If either t
RES
or t
REH
is less than the specified value, read disable operations are not guaranteed.
10.
If either t
REN1
or t
REN2
is less than the specified value, internal read disable operations may extend to cycles
preceding or following the period of read disable operations.
1.8 k
1.1 k
D
OUT
V
CC
5 pF
(t
LZ
, t
HZ
)
1.8 k
1.1 k
D
OUT
V
CC
30 pF
(t
AC
, t
OH
)
3.0 V
0 V
t
T
= 5 ns
t
T
= 5 ns
1.5 V
Test points
0.8 V
2.0 V
High impedance
High impedance
Test points
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