參數(shù)資料
型號(hào): HC74HC444
廠商: Hitachi,Ltd.
英文描述: Quad. Tridirectional Bus Transceiver(with noninverted/inverted 3-state outputs)
中文描述: 四。 Tridirectional總線收發(fā)器(帶noninverted /倒三態(tài)輸出)
文件頁(yè)數(shù): 7/12頁(yè)
文件大小: 82K
代理商: HC74HC444
HD74HC442/HD74HC443/HD74HC444
7
DC Characteristics
Ta = 25
°
C
Ta = –40 to
+85
°
C
Item
Symbol
V
CC
(V)
2.0
Min Typ Max Min
Max
Unit
Test Conditions
Input voltage
V
IH
1.5
1.5
V
4.5
3.15 —
3.15
6.0
4.2
4.2
V
IL
2.0
0.5
0.5
V
4.5
1.35 —
1.35
6.0
1.8
1.8
Output voltage
V
OH
2.0
1.9
2.0
1.9
V
Vin = V
IH
or V
IL
I
OH
= –20
μ
A
4.5
4.4
4.5
4.4
6.0
5.9
6.0
5.9
4.5
4.18 —
4.13
I
OH
= –6 mA
I
OH
= –7.8 mA
6.0
5.68 —
5.63
V
OL
2.0
0.0
0.1
0.1
V
Vin = V
IH
or V
IL
I
OL
= 20
μ
A
4.5
0.0
0.1
0.1
6.0
0.0
0.1
0.1
4.5
0.26 —
0.33
I
OL
= 6 mA
I
OL
= 7.8 mA
6.0
0.26 —
0.33
Off-state output
current
I
OZ
6.0
±
0.5 —
±
5.0
μ
A
Vin = V
IH
or V
,
Vout = V
CC
or GND
Vin = V
CC
or GND
Vin = V
CC
or GND, Iout = 0
μ
A
Input current
Iin
6.0
±
0.1 —
±
1.0
μ
A
μ
A
Quiescent supply
current
I
CC
6.0
4.0
40
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