MC74HC244A_14 Datasheet, PDF (3/7 Pages) ON Semiconductor – Octal 3-State Noninverting Buffer/Line Driver/ Line Receiver

MC74HC244A
DC ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND)
Guaranteed Limit
Symbol
Parameter
Test Conditions
V_CC –55 to
V
25_C v 85_C v 125_C Unit
V_IH Minimum High−Level Input Voltage V_out = V_CC – 0.1 V
|I_out| v 20 mA
2.0
1.5
1.5
1.5
V
3.0
2.1
2.1
2.1
4.5
3.15
3.15
3.15
6.0
4.2
4.2
4.2
V_IL Maximum Low−Level Input Voltage V_out = 0.1 V
|I_out| v 20 mA
2.0
0.5
0.5
0.5
V
3.0
0.9
0.9
0.9
4.5
1.35
1.35
1.35
6.0
1.8
1.8
1.8
V_OH Minimum High−Level Output
Voltage
V_in = V_IH
|I_out| v 20 mA
2.0
1.9
1.9
1.9
V
4.5
4.4
4.4
4.4
6.0
5.9
5.9
5.9
V_in = V_IH |I_out| v 2.4 mA
|I_out| v 6.0 mA
|I_out| v 7.8 mA
3.0
2.48
2.34
2.2
4.5
3.98
3.84
3.7
6.0
5.48
5.34
5.2
V_OL Maximum Low−Level Output
Voltage
V_in = V_IL
|I_out| v 20 mA
2.0
0.1
0.1
0.1
V
4.5
0.1
0.1
0.1
6.0
0.1
0.1
0.1
V_in = V_IL |I_out| v 2.4 mA
3.0
|I_out| v 6.0 mA
4.5
|I_out| v 7.8 mA
6.0
I_in
Maximum Input Leakage Current V_in = V_CC or GND
6.0
I_OZ
Maximum Three−State Leakage
Output in High−Impedance State
6.0
Current
V_in = V_IL or V_IH
V_out = V_CC or GND
I_CC Maximum Quiescent Supply Cur- V_in = V_CC or GND
6.0
rent (per Package)
I_out = 0 mA
0.26
0.26
0.26
±0.1
±0.5
4.0
0.33
0.33
0.33
±1.0
±5.0
40
0.4
0.4
0.4
±1.0
mA
±10
mA
160
mA
AC ELECTRICAL CHARACTERISTICS (C_L = 50 pF, Input t_r = t_f = 6 ns)
Symbol
t_PLH,
t_PHL
Parameter
Maximum Propagation Delay, A to YA or B to YB
(Figures 1 and 3)
t_PLZ,
t_PHZ
Maximum Propagation Delay, Output Enable to YA or YB
(Figures 2 and 4)
t_PZL,
t_PZH
Maximum Propagation Delay, Output Enable to YA or YB
(Figures 2 and 4)
t_TLH,
t_THL
Maximum Output Transition Time, Any Output
(Figures 1 and 3)
C_in Maximum Input Capacitance
C_out Maximum Three−State Output Capacitance
(Output in High−Impedance State)
Guaranteed Limit
V_CC –55 to
V
25_C
v85_C v125_C Unit
2.0
96
3.0
50
4.5
18
6.0
15
115
135
ns
60
70
23
27
20
23
2.0
110
140
165
ns
3.0
60
70
80
4.5
22
28
33
6.0
19
24
28
2.0
110
140
165
ns
3.0
60
70
80
4.5
22
28
33
6.0
19
24
28
2.0
60
75
90
ns
3.0
23
27
32
4.5
12
15
18
6.0
10
13
15
−
10
10
10
pF
−
15
15
15
pF
Typical @ 25°C, V_CC = 5.0 V
C_PD Power Dissipation Capacitance (Per Buffer)*
34
pF
* Used to determine the no−load dynamic power consumption: P_D = C_PD V_CC2f + I_CC V_CC.
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