IN74AC32
1
QUAD 2-INPUT OR GATE
High-Speed Silicon-Gate CMOS
The IN74AC32 is identical in pinout to the LS/ALS32,
HC/HCT32. The device inputs are compatible with
standard CMOS outputs; with pullup resistors, they are
compatible with LS/ALS outputs.
• Outputs Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 2.0 to 6.0 V
• Low Input Current: 1.0 µA; 0.1 µA @ 25°C
• High Noise Immunity Characteristic of CMOS Devices
• Outputs Source/Sink 24 mA
ORDERING INFORMATION
IN74AC32N Plastic
IN74AC32D SOIC
TA = -40° to 85° C for all
packages
LOGIC DIAGRAM
PIN 14 =VCC
PIN 7 = GND
PIN ASSIGNMENT
FUNCTION TABLE
Inputs Output
A B Y
L L L
L H H
H L H
H H H
IN74AC32
2
MAXIMUM RATINGS*
Symbol Parameter Value Unit
VCC DC Supply Voltage (Referenced to GND) -0.5 to +7.0 V
VIN DC Input Voltage (Referenced to GND) -0.5 to VCC +0.5 V
VOUT DC Output Voltage (Referenced to GND) -0.5 to VCC +0.5 V
IIN DC Input Current, per Pin ±20 mA
IOUT DC Output Sink/Source Current, per Pin ±50 mA
ICC DC Supply Current, VCC and GND Pins ±50 mA
PD Power Dissipation in Still Air, Plastic DIP+
SOIC Package+
750
500
mW
Tstg Storage Temperature -65 to +150 °C
TL Lead Temperature, 1 mm from Case for 10
Seconds
(Plastic DIP or SOIC Package)
260 °C
*Maximum Ratings are those values beyond which damage to the device may occur.
Functional operation should be restricted to the Recommended Operating Conditions.
+Derating - Plastic DIP: - 10 mW/°C from 65° to 125°C
SOIC Package: : - 7 mW/°C from 65° to 125°C
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Min Max Unit
VCC DC Supply Voltage (Referenced to GND) 2.0 6.0 V
VIN, VOUT DC Input Voltage, Output Voltage (Referenced to
GND)
0 VCC V
TJ Junction Temperature (PDIP) 140 °C
TA Operating Temperature, All Package Types -40 +85 °C
IOH Output Current - High -24 mA
IOL Output Current - Low 24 mA
tr, tf Input Rise and Fall Time *
(except Schmitt Inputs)
VCC =3.0 V
VCC =4.5 V
VCC =5.5 V
0
0
0
150
40
25
ns/V
* VIN from 30% to 70% VCC
This device contains protection circuitry to guard against damage due to high static
voltages or electric fields. However, precautions must be taken to avoid applications of any voltage
higher than maximum rated voltages to this high-impedance circuit. For proper operation, VIN and
VOUT should be constrained to the range GND≤(VIN or VOUT)≤VCC.
Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or
VCC). Unused outputs must be left open.
IN74AC32
3
DC ELECTRICAL CHARACTERISTICS(Voltages Referenced to GND)
V
CC Guaranteed
Limits
Symbol Parameter Test Conditions V
25 °C -40°C to
85°C
Unit
VIH Minimum High-
Level Input
Voltage
VOUT= VCC-0.1 V 3.0
4.5
5.5
2.1
3.15
3.85
2.1
3.15
3.85
V
VIL Maximum Low -
Level Input
Voltage
VOUT=0.1 V or VCC-0.1 V 3.0
4.5
5.5
0.9
1.35
1.65
0.9
1.35
1.65
V
VOH Minimum High-
Level Output
Voltage
IOUT ≤ -50 µA 3.0
4.5
5.5
2.9
4.4
5.4
2.9
4.4
5.4
V
*VIN=VIH or VIL
IOH=-12 mA
IOH=-24 mA
IOH=-24 mA
3.0
4.5
5.5
2.56
3.86
4.86
2.46
3.76
4.76
VOL Maximum Low-
Level Output
Voltage
IOUT ≤ 50 µA 3.0
4.5
5.5
0.1
0.1
0.1
0.1
0.1
0.1
V
*VIN=VIL
IOL=12 mA
IOL=24 mA
IOL=24 mA
3.0
4.5
5.5
0.36
0.36
0.36
0.44
0.44
0.44
IIN Maximum Input
Leakage Current
VIN=VCC or GND 5.5 ±0.1 ±1.0 µA
IOLD +Minimum
Dynamic Output
Current
VOLD=1.65 V Max 5.5 75 mA
IOHD +Minimum
Dynamic Output
Current
VOHD=3.85 V Min 5.5 -75 mA
ICC Maximum
Quiescent Supply
Current
(per Package)
VIN=VCC or GND 5.5 4.0 40 µA
* 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
VCC
IN74AC32
4
AC ELECTRICAL CHARACTERISTICS(CL=50pF,Input tr=tf=3.0 ns)
V
CC
*
Guaranteed Limits
Symbol Parameter V
25 °C -40°C to
85°C
Unit
Min Max Min Max
tPLH Propagation Delay, Input A or B to
Output Y (Figure 1)
3.3
5.0
1.5
1.5
9.0
7.5
1.5
1.0
10.0
8.5
ns
tPHL Propagation Delay, Input A or B to
Output Y (Figure 1)
3.3
5.0
1.5
1.5
8.5
7.0
1.0
1.0
9.0
7.5
ns
CIN Maximum Input Capacitance 5.0 4.5 4.5 pF
Typical @25°C,VCC=5.0 V
CPD Power Dissipation Capacitance 20 pF
*Voltage Range 3.3 V is 3.3 V ±0.3 V
Voltage Range 5.0 V is 5.0 V ±0.5 V
Figure 1. Switching Waveforms
