參數(shù)資料
型號(hào): 74F846
廠商: NXP Semiconductors N.V.
英文描述: 8-bit bus interface latches, inverting (3-State)(8位總線接口鎖存器,反相(三態(tài)))
中文描述: 8位總線接口龍頭,反相(3態(tài))(8位總線接口鎖存器,反相(三態(tài)))
文件頁(yè)數(shù): 11/18頁(yè)
文件大?。?/td> 206K
代理商: 74F846
Philips Semiconductors
Product specification
74F841/74F842/74F843/
74F845/74F846
Bus interface latches
1999 Jun 23
11
AC ELECTRICAL CHARACTERISTICS for 74F841/74F842
LIMITS
T
amb
= +25
°
C
V
CC
= +5.0V
C
L
= 50pF, R
L
= 500
MIN
TYP
T
amb
= 0
°
C to +70
°
C
V
CC
= +5.0V
±
10%
C
L
= 50pF, R
L
= 500
MIN
SYMBOL
PARAMETER
TEST
UNIT
CONDITION
MAX
MAX
t
PLH
t
PHL
Propagation delay
Dn to Qn
74F841
Waveform 1, 2
2.0
2.5
4.0
4.5
7.5
7.5
2.0
2.5
8.0
8.0
ns
t
PLH
t
PHL
Propagation delay
LE to Qn
Waveform 1, 2
4.5
4.0
6.5
6.0
9.5
9.0
4.0
3.5
10.0
9.5
ns
t
PLH
t
PHL
Propagation delay
Dn to Qn
74F842
Waveform 1, 2
3.5
3.0
5.5
5.0
8.5
8.0
4.5
4.0
9.0
8.5
ns
t
PLH
t
PHL
Propagation delay
LE to Qn
Waveform 1, 2
5.0
4.5
7.0
6.5
10.0
9.0
3.0
3.0
10.5
9.5
ns
t
PZH
t
PZL
Output enable time
High or Low-level OEn to Qn or Qn
Waveform 5
Waveform 6
2.5
4.0
4.5
6.0
8.0
9.5
2.0
3.0
8.5
10.5
ns
t
PHZ
t
PLZ
Output disable time
High or Low-level OEn to Qn or Qn
Waveform 5
Waveform 6
1.0
1.0
4.5
5.0
8.0
8.0
1.0
1.0
8.5
8.5
ns
AC SETUP REQUIREMENTS for 74F841/74F842
LIMITS
T
amb
= +25
°
C
V
CC
= +5.0V
C
L
= 50pF, R
L
= 500
MIN
T
amb
= 0
°
C to +70
°
C
V
CC
= +5.0V
±
10%
C
L
= 50pF, R
L
= 500
MIN
SYMBOL
PARAMETER
TEST
UNIT
CONDITION
TYP
MAX
t
s
(H)
t
s
(L)
Setup time, High or Low
Dn to LE
Waveform 4
0.0
0.0
1.0
1.0
ns
t
h
(H)
t
h
(L)
Hold time, High or Low
Dn to LE
74F841
Waveform 4
2.5
3.0
3.0
4.0
ns
t
w
(H)
LE pulse width, High
Waveform 4
3.5
4.0
ns
t
h
(H)
t
h
(L)
Hold time, High or Low
Dn to LE
74F842
Waveform 4
3.0
3.5
3.5
4.5
ns
t
w
(H)
LE pulse width, High
Waveform 4
3.0
3.0
ns
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