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MC74AC20_06 Datasheet, PDF (2/8 Pages) ON Semiconductor – Dual 4−Input NAND Gate
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MC74AC20, MC74ACT20
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Min
Typ
Min
Unit
VCC
Supply Voltage
′AC
2.0
5.0
6.0
′ACT
4.5
5.0
5.5
V
VREG
tr, tf
tr, tf
TJ
TA
IOH
IOL
DC Regulated Power Voltage (Ref. to GND)
Input Rise and Fall Time (Note 1)
′AC Devices except Schmitt Inputs
Input Rise and Fall Time (Note 2)
′ACT Devices except Schmitt Inputs
Junction Temperature (PDIP)
Operating Ambient Temperature Range
Output Current − HIGH
Output Current − LOW
0
VCC @ 3.0 V
−
VCC @ 4.5 V
−
VCC @ 5.5 V
−
VCC @ 4.5 V
−
VCC @ 5.5 V
−
−
−
VCC
V
150
−
40
−
ns/V
25
−
10
−
ns/V
8.0
−
−
140
°C
−40
25
85
°C
−
−
−24
mA
−
−
24
mA
1. Vin from 30% to 70% VCC; see individual Data Sheets for devices that differ from the typical input rise and fall times.
2. Vin from 0.8 V to 2.0 V; see individual Data Sheets for devices that differ from the typical input rise and fall times.
DC CHARACTERISTICS
74AC
74AC
Symbol
Parameter
VCC
(V)
TA = +25°C
TA =
−40°C to
+85°C
Unit
Conditions
Typ Guaranteed Limits
VIH
Minimum High Level
Input Voltage
3.0
1.5 2.1
2.1
4.5 2.25 3.15
3.15
5.5 2.75 3.85
3.85
VOUT = 0.1 V
V
or VCC − 0.1 V
VIL
Maximum Low Level
Input Voltage
3.0
1.5 0.9
0.9
4.5 2.25 1.35
1.35
5.5 2.75 1.65
1.65
VOUT = 0.1 V
V
or VCC − 0.1 V
VOH
Minimum Low Level
Output Voltage
3.0 2.99 2.9
2.9
4.5 4.49 4.4
4.4
5.5 5.49 5.4
5.4
IOUT = − 50 mA
V
3.0
− 2.56
2.46
4.5
− 3.86
3.76
5.5
− 4.86
4.76
*VIN = VIL or VIH
− 12 mA
V
IOH
− 24 mA
− 24 mA
VOL
Maximum Low Level
Output Voltage
3.0 0.002 0.1
0.1
4.5 0.001 0.1
0.1
5.5 0.001 0.1
0.1
IOUT = 50 mA
V
3.0
− 0.36
0.44
4.5
− 0.36
0.44
5.5
− 0.36
0.44
*VIN = VIL or VIH
V
IOL
12 mA
24 mA
24 mA
IIN
Maximum Input
Leakage Current
5.5
− ±0.1
±1.0
mA
VI = VCC, GND
IOLD
IOHD
†Minimum Dynamic
Output Current
5.5
−
−
75
5.5
−
−
−75
mA
VOLD = 1.65 V Max
mA
VOHD = 3.85 V Min
ICC
Maximum Quiescent
Supply Current
5.5
−
4.0
40
mA
VIN = VCC or GND
*All outputs loaded; thresholds on input associated with output under test.
†Maximum test duration 2.0 ms, one output loaded at a time.
NOTE: IIN and ICC @ 3.0 V are guaranteed to be less than or equal to the respective limit @ 5.5 V.
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