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參數(shù)資料
| 型號： | 74F862 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Bus transceivers (3-State)(總線收發(fā)器（三態(tài)）) |
| 中文描述： | 總線收發(fā)器（3態(tài)）（總線收發(fā)器（三態(tài)）） |
| 文件頁數(shù)： | 8/12頁 |
| 文件大?。?/td> | 89K |
| 代理商： | 74F862 |
Philips Semiconductors
Product specification
74F862, 74F863
Bus transceivers (3-State)
2000 Mar 24
8
AC WAVEFORMS
V
M
V
M
V
M
V
M
Bn, An
An, Bn
t
PLH
t
PHL
SF00202
Waveform 1. Propagation Delay for Non-inverting Output
A
n
or B
n
B
n
or A
n
t
PLH
V
M
V
M
V
M
V
M
t
PHL
SF00534
Waveform 2. Propagation Delay for Inverting Output
A
n
, B
n
OEBA
n
OEAB
n
t
PZH
V
M
V
M
V
M
t
PHZ
V
OH
–0.3 V
SF00535
0 V
Waveform 3. 3-State Output Enable Time to High Level and
Output Disable Time from High Level
A
n
, B
n
OEBA
n
OEAB
n
t
PZL
V
M
V
M
V
M
t
PLZ
V
OL
+0.3 V
SF00536
Waveform 4. 3-State Output Enable Time to Low Level and
Output Disable Time from Low Level
NOTE:
For all waveforms, V
M
= 1.5V.
TEST CIRCUITS AND WAVEFORMS
t
w
90%
V
M
10%
90%
V
M
10%
90%
V
M
10%
90%
V
M
10%
NEGATIVE
PULSE
POSITIVE
PULSE
t
w
AMP (V)
0V
0V
t
THL (
t
f
)
INPUT PULSE REQUIREMENTS
rep. rate
t
w
t
TLH
t
THL
1MHz
500ns
2.5ns
2.5ns
Input Pulse Definition
V
CC
family
74F
D.U.T.
PULSE
GENERATOR
R
L
C
L
R
T
V
IN
V
OUT
Test Circuit for Open Collector Outputs
DEFINITIONS:
R
L
=
Load resistor;
see AC electrical characteristics for value.
Load capacitance includes jig and probe capacitance;
see AC electrical characteristics for value.
Termination resistance should be equal to Z
OUT
of
pulse generators.
C
L
=
R
T
=
t
THL (
t
f
)
t
TLH (
t
r
)
t
TLH (
t
r
)
AMP (V)
amplitude
3.0V
1.5V
V
M
R
L
7.0V
SF00128
TEST
t
PLZ
t
PZL
All other
SWITCH
closed
closed
open
SWITCH POSITION
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