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參數資料
| 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： | 3/9頁 |
| 文件大?。?/td> | 114K |
| 代理商： | 74ALS273DB |
Philips Semiconductors
Product specification
74ALS273
Octal D-type flip-flop
1991 Feb 08
3
LOGIC DIAGRAM
D
Q
RD
Q0
2
V
= Pin 20
GND = Pin 10
CP
D0
3
D
Q
RD
Q1
5
CP
D1
4
D
Q
RD
Q2
6
CP
D2
7
D
Q
RD
Q3
9
CP
D3
8
D
Q
RD
Q4
12
CP
D4
13
D
Q
RD
Q5
15
CP
D5
14
D
Q
RD
Q6
16
CP
D6
17
D
Q
RD
Q7
19
CP
D7
18
11
1
CP
MR
SF00349
FUNCTION TABLE
INPUTS
OUTPUTS
OPERATING MODE
MR
CP
Dn
Qn
L
X
X
L
Reset (clear)
H
↑
↑
h
H
Load “1”
H
High-voltage level
High state must be present one setup time before the Low-to-High clock transition
Low-voltage level
Low state must be present one setup time before the Low-to-High clock transition
Don’t care
Low-to-High clock transition
l
L
Load “0”
H =
h
L
l
X =
↑
=
=
=
=
ABSOLUTE MAXIMUM RATINGS
(Operation beyond the limit set forth in this table may impair the useful life of the device.
Unless otherwise noted these limits are over the operating free air temperature range.)
SYMBOL
PARAMETER
RATING
UNIT
V
CC
V
IN
I
IN
V
OUT
I
OUT
T
amb
T
stg
Supply voltage
–0.5 to +7.0
V
Input voltage
–0.5 to +7.0
V
Input current
–30 to +5
mA
Voltage applied to output in High output state
–0.5 to V
CC
48
V
Current applied to output in Low output state
mA
Operating free-air temperature range
0 to +70
°
C
°
C
Storage temperature range
–65 to +150
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
LIMITS
UNIT
MIN
NOM
MAX
V
CC
V
IH
V
IL
I
IK
I
OH
I
OL
T
amb
Supply voltage
4.5
5.0
5.5
V
High-level input voltage
2.0
V
Low-level input voltage
0.8
V
Input clamp current
–18
mA
High-level output current
–2.6
mA
Low-level output current
24
mA
Operating free-air temperature range
0
+70
°
C
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相關代理商/技術參數 |
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| 74ALS27N | 制造商:NXP Semiconductors 功能描述:ALS SERIES, TRIPLE 3-INPUT NOR GATE, PDIP14 |
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