Motorola MC74ACT20N, MC74AC20N, MC74AC20D Datasheet
5-1
FACT DATA
• Outputs Source/Sink 24 mA
• ′ACT20 Has TTL Compatible Inputs
Pinout: 14-Lead Packages (Top View)
GND
1314 12 11 10 9 8
21 3 4 5 6 7
V
CCA1B1
NC C1D1O
1
A0B0NC C0D0O
0
PIN NAMES
An, Bn, Cn, D
n
Inputs
O
n
Outputs
MAXIMUM RATINGS*
Symbol Parameter Value Unit
V
CC
DC Supply Voltage (Referenced to GND) –0.5 to +7.0 V
V
in
DC Input Voltage (Referenced to GND) –0.5 to VCC + 0.5 V
V
out
DC Output Voltage (Referenced to GND) –0.5 to VCC + 0.5 V
I
in
DC Input Current, per Pin ± 20 mA
I
out
DC Output Sink/Source Current, per Pin ± 50 mA
I
CC
DC VCC or GND Current per Output Pin ± 50 mA
T
stg
Storage Temperature –65 to +150 °C
* Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended
Operating Conditions.
DUAL 4-INPUT
NAND GATE
N SUFFIX
CASE 646-06
PLASTIC PACKAGE
D SUFFIX
CASE 751A-03
PLASTIC PACKAGE
1
14
MC74AC20 MC74ACT20
5-2
FACT DATA
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Min Typ Min Unit
′AC 2.0 5.0 6.0
VCCSupply Voltage
′ACT 4.5 5.0 5.5
V
VREG DC Regulated Power Voltage (Ref. to GND) 0 V
CC
V
VCC @ 3.0 V 150
Input Rise and Fall Time (Note 1)
′AC Devices except Schmitt Inputs
VCC @ 4.5 V 40 ns/V
r
, t
f
′AC Devices except Schmitt Inputs
VCC @ 5.5 V 25
VCC @ 4.5 V 10
tr, t
f
Input Rise and Fall Time (Note 2)
′ACT Devices except Schmitt Inputs
VCC @ 5.5 V 8.0
ns/V
T
J
Junction Temperature (PDIP) 140 °C
T
A
Operating Ambient Temperature Range –40 25 85 °C
I
OH
Output Current — HIGH –24 mA
I
OL
Output Current — LOW 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
V
CC
(V)
TA = +25°C
TA =
–40°C to +85°C
Unit
Conditions
Typ Guaranteed Limits
V
IH
3.0 1.5 2.1 2.1 V
OUT
= 0.1 V
4.5 2.25 3.15 3.15 V or VCC – 0.1 V
5.5 2.75 3.85 3.85
V
IL
3.0 1.5 0.9 0.9 V
OUT
= 0.1 V
4.5 2.25 1.35 1.35 V or VCC – 0.1 V
5.5 2.75 1.65 1.65
V
OH
3.0 2.99 2.9 2.9 I
OUT
= – 50 µA
4.5 4.49 4.4 4.4 V
5.5 5.49 5.4 5.4
*VIN = VIL or V
IH
3.0 2.56 2.46
– 12 mA
4.5 3.86 3.76
V
I
OH
– 24 mA
5.5 4.86 4.76 – 24 mA
V
OL
3.0 0.002 0.1 0.1 I
OUT
= 50 µA
4.5 0.001 0.1 0.1 V
5.5 0.001 0.1 0.1
*VIN = VIL or V
IH
3.0 0.36 0.44
12 mA
4.5 0.36 0.44
V
I
OL
24 mA
5.5 0.36 0.44 24 mA
I
IN
5.5
±0.1
±1.0
µA
I
= VCC, GND
I
OLD
5.5 75 mA V
OLD
= 1.65 V Max
I
OHD
Output Current
5.5 –75 mA V
OHD
= 3.85 V Min
I
CC
5.5
4.040µA
IN
= 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.
tr, t
f
Input Rise and Fall Time (Note 2)
Minimum High Level
Input Voltage
Maximum Low Level
Input Voltage
Minimum Low Level
Output Voltage
Maximum Low Level
Output Voltage
Maximum Input
Leakage Current
†Minimum Dynamic
Maximum Quiescent
Supply Current
VI = VCC, GND
VIN = VCC or GND
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