M74HC244C1R Ver la hoja de datos (PDF) - STMicroelectronics
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M74HC244C1R
STMicroelectronics
M74HC244C1R Datasheet PDF : 12 Pages
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M54/M74HC240/241/244
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6 ns)
Symbol
Parameter
Test Conditions
VCC CL
(V) (pF)
TA = 25 oC
54HC and 74HC
Value
-40 to 85 oC -55 to 125 oC Unit
74HC
54HC
Min. Typ. Max. Min. Max. Min. Max.
tTLH Output Transition 2.0
tTHL Time
4.5 50
25 60
75
90
7
12
19
18
ns
6.0
6
10
13
15
tPLH Propagation
tPHL Delay Time
2.0
4.5 50
36 90
12 18
115
135
23
27
ns
6.0
10 15
20
23
2.0
4.5 150
51 130
165
195
17 26
33
39
ns
6.0
14 22
28
33
tPZL Output Enable
2.0
48 125
155
190
tPZH Time
4.5 50 RL = 1KΩ
16 25
31
38
ns
6.0
14 21
26
32
2.0
63 165
205
250
4.5 150 RL = 1KΩ
21 33
41
50
ns
6.0
18 28
35
43
tPLZ Output Disable
2.0
32 125
155
190
tPHZ Time
4.5 50 RL = 1KΩ
15 25
31
38
ns
6.0
14 21
26
32
CIN
COUT
Input Capacitance
Output
Capacitance
5
10
10
10 pF
10
pF
CPD (*) Power Dissipation
HC240
31
Capacitance
HC241/244
33
pF
(*) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load.
(Refer to Test Circuit). Average operting current can be obtained by the following equation. ICC(opr) = CPD •VCC •fIN + ICC/8 (per circuit)
TEST CIRCUIT ICC (Opr.)
HC240
6/12
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