參數資料
型號： 74F776
廠商： NXP Semiconductors N.V.
英文描述： Pi-bus transceiver
中文描述： 丕總線收發(fā)器
文件頁數： 8/12頁
文件大小： 108K
代理商： 74F776
Philips Semiconductors
Product specification
74F776
Pi–bus transceiver
December 19, 1990
8
AC ELECTRICAL CHARACTERISTICS
A PORT LIMITS
T
amb
= 0
°
C to
°
C
V
CC
= +70
±
10%
C
L
= 50pF,
R
L
= 500
MIN
T
amb
= +25
°
C
V
CC
= +5.0V
C
L
= 50pF,
R
L
= 500
MIN
TYP
T
amb
= –40
°
C to +85
°
C
V
CC
= +5.0V
±
10%
C
L
= 50pF,
R
L
= 500
MIN
SYMBOL
PARAMETER
TEST
UNIT
CONDITION
MAX
MAX
MAX
t
PLH
t
PHL
Propagation delay
Bn
to An
Waveform 1
5.5
4.5
8.0
6.0
12.0
9.0
5.5
4.5
12.0
9.0
5.5
4.5
12.0
9.0
ns
t
PZH
t
PZL
t
PHZ
t
PLZ
Output enable time to high
or low, OEA
to An
Waveform 3, 4
8.0
8.5
10.5
11.0
13.5
13.5
7.5
8.0
15.0
15.5
7.5
8.0
15.5
15.5
ns
Output disable time from
high or low, OEA
to An
Waveform 3, 4
2.0
2.0
3.5
4.5
6.0
7.0
1.5
2.0
6.5
7.5
1.5
2.0
6.5
7.5
ns
B PORT LIMITS
T
amb
= 0
°
C to
+70
°
C
V
CC
= +5.0V
±
10%
C
D
= 30pF, R
U
= 9
MIN
TEST
T
amb
= +25
°
C
T
amb
= –40
°
C to +85
°
C
SYMBOL
PARAMETER
CONDITION
V
CC
= +5.0V
C
D
= 30pF, R
U
= 9
MIN
TYP
V
CC
= +5.0V
±
10%
C
D
= 30pF, R
U
= 9
MIN
UNIT
MAX
MAX
MAX
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
TLH
t
THL
Propagation delay
An
to Bn
Waveform 1
3.0
3.0
5.0
4.5
7.0
7.5
2.5
2.5
8.0
8.5
2.0
2.5
9.0
8.5
ns
Propagation delay
LE
to Bn
Waveform 1
3.5
3.5
5.0
5.0
8.0
8.0
3.0
2.5
9.0
9.0
2.5
2.5
9.5
9.5
ns
Enable/disable time
OEBn
to An
Waveform 1
3.0
3.5
4.5
5.5
7.0
9.0
2.5
3.5
8.0
10.0
2.5
3.5
8.5
10.5
ns
Transition time, B port
1.3V to 1.7V, 1.7V to 1.3V
Test Circuit and
Waveforms
0.5
0.5
2.0
2.0
4.5
4.5
0.5
0.5
5.0
4.5
0.5
0.5
5.0
4.5
ns
AC SETUP REQUIREMENTS
LIMITS
TEST
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
T
amb
= –40
°
C to +85
°
C
V
CC
= +5.0V
±
10%
C
L
= 50pF,
R
L
= 500
MIN
SYMBOL
PARAMETER
CONDITION
UNIT
MAX
MAX
MAX
t
su
(H)
t
su
(L)
Setup time, high or low
An
to LE
Waveform 2
3.5
4.5
4.5
5.0
4.5
5.0
ns
t
h
(H
)
t
h
(
L
)
t
w
(L)
Hold time, high or low
An
to LE
Waveform 2
0.0
0.0
0.0
0.0
0.0
0.0
ns
LE pulse width, low
Waveform 2
4.0
5.0
5.0
ns
AC WAVEFORMS
V
M
V
M
V
M
V
M
An, Bn
An, Bn, OEBn
t
PLH
t
PHL
SF00427
Waveform 1. Propagation delay for data to output
LE
V
M
V
M
V
M
V
M
V
M
V
M
t
su
(L)
t
h
(L)
t
h
(H)
An
V
M
t
w
(L)
t
s
(H)
SF00428
Waveform 2. Data setup and hold times and LE pulse width
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參數描述
74F777 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Triple bidirectional latched bus transceiver 3-State open collector
74F779 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:8-Bit Bidirectional Binary Counter with 3-STATE Outputs
74F779 WAF 制造商:Rochester Electronics LLC 功能描述:
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