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參數(shù)資料
| 型號： | 74ALS273DB |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 通用總線功能 |
| 英文描述： | Octal D-type flip-flop |
| 中文描述： | ALS SERIES, POSITIVE EDGE TRIGGERED D FLIP-FLOP, TRUE OUTPUT, PDSO20 |
| 封裝： | PLASTIC, SSOP2-20 |
| 文件頁數(shù)： | 5/9頁 |
| 文件大?。?/td> | 114K |
| 代理商： | 74ALS273DB |
Philips Semiconductors
Product specification
74ALS273
Octal D-type flip-flop
1991 Feb 08
5
AC WAVEFORMS
For all waveforms, V
M
= 1.3V.
CP
V
M
V
M
V
M
t
w
(H)
1/f
max
V
M
V
M
t
PLH
t
w
(L)
t
PHL
Qn
SF00294
Waveform 1.
Clock Pulse Width, and Maximum Clock Frequency
Propagation Delay for Clock Input to Output,
V
M
SC00065
MR
Qn
V
M
t
w
(L)
t
PHL
V
M
t
REC
CP
V
M
Waveform 2.
Output Delay, and Master Reset to Clock Recovery Time
Master Reset Pulse Width, Master Reset to
t
h
(H)
t
su
(H)
CP
SC00064
V
M
V
M
V
M
V
M
V
M
V
M
t
h
(L)
t
su
(L)
Dn
Waveform 3.
Data Setup and Hold Times
TEST CIRCUIT 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)
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 Totem-pole 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
3.5V
1.3V
V
M
SC00005
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| 74ALS273N | 制造商:Texas Instruments 功能描述: |
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| 74ALS29809DW | 制造商:Rochester Electronics LLC 功能描述: |
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