參數(shù)資料
型號: 74ALS620AD
廠商: NXP SEMICONDUCTORS
元件分類: 通用總線功能
英文描述: Transceivers
中文描述: ALS SERIES, 8-BIT TRANSCEIVER, INVERTED OUTPUT, PDSO20
封裝: PLASTIC, SO-20
文件頁數(shù): 8/11頁
文件大?。?/td> 103K
代理商: 74ALS620AD
Philips Semiconductors
Product specification
74ALS620A/74ALS620A-1
74ALS623A/74ALS623A-1
Transceivers
1991 Feb 08
8
AC WAVEFORMS
For all waveforms, V
M
= 1.3V.
A
n
, B
n
B
n,
A
n
t
PHL
V
M
V
M
V
M
V
M
t
PLH
SF00773
Waveform 1.
Propagation Delay for Inverting Outputs
V
M
V
M
V
M
V
M
Bn, An
An, Bn
t
PLH
t
PHL
SF00202
Waveform 2.
Propagation Delay for Non-inverting Outputs
SF00412
V
M
V
M
V
M
t
PHZ
t
PZH
V
OH
-0.3V
0V
An or Bn
OEBA
OEAB
Waveform 3.
3-State Output Enable Time to High Level
and Disable Time from High Level
TEST CIRCUIT AND WAVEFORMS
SF00413
V
M
V
M
V
M
t
PLZ
t
PZL
V
OL
+0.3V
An or Bn
OEBA
OEAB
Waveform 4.
3-State Output Enable Time to Low Level
and Disable Time from Low Level
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)
0.3V
0.3V
t
THL (
t
f
f
)
INPUT PULSE REQUIREMENTS
Rep.Rate
t
w
t
TLH
2.0ns
t
THL
2.0ns
1MHz
500ns
Input Pulse Definition
V
CC
Family
74ALS
D.U.T.
PULSE
GENERATOR
R
L
C
L
R
T
V
IN
V
OUT
Test Circuit for 3-State Outputs
SWITCH POSITION
TEST
SWITCH
t
PLZ
, t
PZL
closed
All other
open
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
3.5V
1.3V
V
M
SC00072
R
L
7.0V
相關(guān)PDF資料
PDF描述
74ALS620AN Transceivers
74ALS623A Transceivers
74ALS623AD Transceivers
74ALS623AN Transceivers
74ALS623A-1 DSUB B/S DE STRT PLAST 1
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