74LV273D 데이터 시트보기 (PDF) - Philips Electronics
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74LV273D Datasheet PDF : 12 Pages
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Philips Semiconductors
Octal D-type flip-flop with reset; positive edge-trigger
Product specification
74LV273
FUNCTIONAL DIAGRAM
3 D0
4 D1
7 D2
8 D3
FF0
to
13 D4
FF7
14 D5
17 D6
18 D7
1 MR
11 CP
Q0
2
Q1
5
Q2 6
Q3 9
Q4 12
Q5 15
Q6 16
Q7 19
FUNCTION TABLE
OPERATING MODES
Reset (clear)
Load (‘1’)
Load (‘0’)
INPUTS
MR
CP
Dn
L
X
X
H
↑
h
H
↑
l
OUTPUTS
Q0 to Q7
L
H
L
H = HIGH voltage level
h = HIGH voltage level one set-up time prior to the
LOW-to-HIGH CP transition
L = LOW voltage level
l
= LOW voltage level one set-up time prior to the
LOW-to-HIGH CP transition
↑ = LOW–to–HIGH clock transition
X = Don’t care
SV00369
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP.
MAX
UNIT
VCC
VI
VO
Tamb
DC supply voltage
Input voltage
Output voltage
Operating ambient temperature range in free
air
See Note1
See DC and AC
characteristics
1.0
3.3
5.5
V
0
–
VCC
V
0
–
VCC
V
–40
–40
+85
+125
°C
tr, tf
Input rise and fall times
VCC = 1.0V to 2.0V
VCC = 2.0V to 2.7V
VCC = 2.7V to 3.6V
VCC = 3.6V to 5.5V
–
–
–
–
500
–
–
200
100
ns/V
–
50
NOTES:
1. The LV is guaranteed to function down to VCC = 1.0V (input levels GND or VCC); DC characteristics are guaranteed from VCC = 1.2V to VCC = 5.5V.
1998 May 29
4
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