Document
UNISONIC TECHNOLOGIES CO., LTD
U74AHCT08
QUADRUPLE 2-INPUT POSITIVE-AND GATE
DESCRIPTION
The U74AHCT08 is a quadruple 2-input AND gate which performs the function Y=A B or Y=A B .
FEATURES
* Low Power Dissipation: * High Speed: * High Noise Immunity
ICC = 2.0 μA (Max.) tPD = 5ns (Typ.)
CMOS IC
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
U74AHCT08L-S14-R
U74AHCT08G-S14-R
U74AHCT08L-P14-R
U74AHCT08G-P14-R
Package
SOP-14 TSSOP-14
Packing
Tape Reel Tape Reel
MARKING
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U74AHCT08
PIN CONFIGURATION
1A 1 1B 2 1Y 3 2A 4 2B 5 2Y 6 GND 7
FUNCTION TABLE (Each Gate)
INPUTS
A
B
L
L
L
H
H
L
H
H
OUTPUT Y L L L H
LOGIC DIAGRAM (Positive Logic)
14 VCC 13 4B 12 4A 11 4Y 10 3B 9 3A 8 3Y
CMOS IC
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R502-415.C
U74AHCT08
CMOS IC
ABSOLUTE MAXIMUM RATING (TA=25°C, unless otherwise specified) (Note 2)
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage Input Voltage
VCC
-0.5 ~ 7
V
VIN
-0.5 ~ 7
V
Output Voltage Input Clamp Current
VOUT IIK
-0.5 ~ VCC+0.5
V
-20
mA
Output Clamp Current Output Current
IOK
±20
mA
IOUT
±25
mA
VCC or GND Current Storage Temperature
ICC TSTG
±50
mA
-65 ~ +150
°C
Notes: 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
2. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
RECOMMENDED OPERATING CONDITIONS (TA=25°C, unless otherwise specified)
PARAMETER
SYMBOL
CONDITIONS
MIN
Supply Voltage
VCC
4.5
Input Voltage
VIN
0
Output Voltage
VOUT
0
Input Transition Rise or Fall Rate
t/v
VCC=5.0+0.5V
Operating Temperature
TA
-40
STATIC CHARACTERISTICS (TA=25°C, unless otherwise specified)
TYP
MAX 5.5 5.5 VCC 20 +125
UNIT V V V
ns/V °C
PARAMETER High-Level Input Voltage Low-Level Input Voltage High-Level Output Voltage
Low-Level Output Voltage Input Leakage Current Quiescent Supply Current
Additional quiescent Supply Current Input Capacitance
SYMBOL VIH VIL VOH
VOL II(LEAK)
IQ
IQ CIN
TEST CONDITIONS VCC = 4.5~5.5 V VCC = 4.5~5.5 V VCC = 4.5V, IOH = -50 μA VCC = 4.5V, IOH = -8 mA VCC = 4.5V, IOL = 50μA VCC = 4.5V, IOL = 8 mA VCC = 5.5V, VIN = VCC or GND VCC = 5.5V, VIN = VCC or GND, IOUT = 0 VCC = 5.5V, VIN = 3.4V; other input at VCC or GND; IOUT=0 VCC = 5V, VIN = VCC or GND
DYNAMIC CHARACTERISTICS (tR, tF ≤ 3 ns;)
MIN 2.0
4.4 3.94
TYP 4.5
4
MAX
0.8
0.1 0.36 ±0.1
2
UNIT V V V
V μA μA
1.35 mA
10
pF
PARAMETER
Propagation delay from input (A and B) to output (Y)
SYMBOL tPLH tPHL tPLH tPHL
TEST CONDITIONS VCC =5±0.5 V, CL=15 pF VCC =5±0.5 V, CL=50 pF
MIN TYP 5 5 5.5 5.5
OPERATING CHARACTERISTICS (VCC = 5V; TA=25°C, unless otherwise specified))
MAX 6.9 6.9 7.9 7.9
UNIT ns
PARAMETER Power Dissipation Capacitance
SYMBOL
TEST CONDITIONS
CPD
No load, f=1MHz
TYP
UNIT
18
pF
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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U74AHCT08
TEST CIRCUIT AND WAVEFORMS
Note : CL includes probe and jig capacitance.
CMOS IC
UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. UTC reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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