M74HCT08
QUAD 2-INPUT AND GATE
■
HIGH SPEED:
tPD = 13ns (TYP.) at VCC=4.5V
■
LOW POWER DISSIPATION:
ICC = 1µA(MAX.) at TA=25°C
■
COMPATIBLE WITH TTL OUTPUTS :
VIH = 2V (MIN.) VIL = 0.8V (MAX)
■
BALANCED PROPAGATION DELAYS:
tPLH ≅ tPHL
■
SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 4mA (MIN)
■
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 08
DESCRIPTION
The M74HCT08 is an high speed CMOS QUAD
2-INPUT AND GATE fabricated with silicon gate
C2MOS technology.
The internal circuit is composed of 2 stages
including buffer output, which enables high noise
immunity and stable output.
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DIP
PACKAGE
TUBE
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TSSOP
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ORDER CODES
DIP
SOP
TSSOP
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SOP
M74HCT08B1R
M74HCT08M1R
T&R
M74HCT08RM13TR
M74HCT08TTR
The M74HCT08 is designed to directly interface
HSC2MOS systems with TTL and NMOS
components.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
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PIN CONNECTION AND IEC LOGIC SYMBOLS
July 2001
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M74HCT08
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN No
SYMBOL
1, 4, 9, 12
2, 5, 10, 13
3, 6, 8, 11
7
1A to 4A
1B to 4B
1Y to 4Y
GND
VCC
14
NAME AND FUNCTION
Data Inputs
Data Inputs
Data Outputs
Ground (0V)
Positive Supply Voltage
TRUTH TABLE
A
B
L
L
H
H
L
H
L
H
ABSOLUTE MAXIMUM RATINGS
Symbol
VCC
e
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l
Parameter
Supply Voltage
VI
DC Input Voltage
VO
DC Output Voltage
IIK
DC Input Diode Current
IOK
DC Output Diode Current
IO
DC Output Current
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ICC or IGND DC VCC or Ground Current
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PD
Power Dissipation
Tstg
Storage Temperature
TL
Lead Temperature (10 sec)
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Y
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Value
L
L
L
H
Unit
-0.5 to +7
V
-0.5 to VCC + 0.5
V
-0.5 to VCC + 0.5
± 20
mA
± 20
mA
± 25
mA
V
± 50
mA
500(*)
mW
-65 to +150
°C
300
°C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied
(*) 500mW at 65 °C; derate to 300mW by 10mW/°C from 65°C to 85°C
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RECOMMENDED OPERATING CONDITIONS
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Symbol
VCC
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Parameter
Value
Unit
Supply Voltage
4.5 to 5.5
V
VI
Input Voltage
0 to VCC
V
VO
Output Voltage
Top
Operating Temperature
tr, tf
Input Rise and Fall Time (VCC = 4.5 to 5.5V)
0 to VCC
V
-55 to 125
°C
0 to 500
ns
M74HCT08
DC SPECIFICATIONS
Test Condition
Symbol
VIH
Parameter
VIL
VOL
II
ICC
∆ ICC
Min.
4.5
to
5.5
4.5
to
5.5
Low Level Input
Voltage
VOH
TA = 25°C
VCC
(V)
High Level Input
Voltage
High Level Output
Voltage
4.5
Low Level Output
Voltage
4.5
Input Leakage
Current
Quiescent Supply
Current
Additional Worst
Case Supply
Current
Value
Typ.
Max.
2.0
-40 to 85°C
-55 to 125°C
Min.
Min.
Max.
2.0
0.8
4.4
4.5
4.4
4.4
IO=-4.0 mA
4.18
4.31
4.13
4.10
0.1
IO=4.0 mA
0.17
0.26
5.5
VI = VCC or GND
± 0.1
5.5
VI = VCC or GND
1
5.5
Per Input pin
VI = 0.5V or
VI = 2.4V
Other Inputs at
VCC or GND
IO = 0
0.1
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P
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let
2.0
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(s)
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0.33
V
0.8
IO=-20 µA
0.0
Max.
2.0
0.8
IO=20 µA
Unit
0.1
0.40
V
V
±1
±1
µA
10
20
µA
2.9
3.0
mA
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AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns)
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Test Condition
Symbol
Parameter
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tTLH tTHL Output Transition
Time
tPLH tPHL Propagation Delay
Time
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VCC
(V)
Value
TA = 25°C
Min.
-40 to 85°C
-55 to 125°C
Min.
Min.
Max.
Unit
Typ.
Max.
Max.
4.5
8
15
19
22
ns
4.5
13
21
26
32
ns
CAPACITIVE CHARACTERISTICS
Symbol
Test Condition
Parameter
VCC
(V)
Value
TA = 25°C
Min.
Typ.
Max.
10
CIN
Input Capacitance
5
CPD
Power Dissipation
Capacitance (note
1)
38
-40 to 85°C
-55 to 125°C
Min.
Min.
Max.
10
Unit
Max.
10
pF
pF
1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/4 (per gate)
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M74HCT08
TEST CIRCUIT
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CL = 50pF or equivalent (includes jig and probe capacitance)
RT = ZOUT of pulse generator (typically 50Ω)
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WAVEFORM : PROPAGATION DELAY TIMES (f=1MHz; 50% duty cycle)
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M74HCT08
Plastic DIP-14 MECHANICAL DATA
mm.
inch
DIM.
MIN.
a1
0.51
B
1.39
TYP
MAX.
MIN.
TYP.
MAX.
0.020
1.65
0.055
0.065
b
0.5
0.020
b1
0.25
0.010
D
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20
E
8.5
e
2.54
e3
15.24
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0.335
7.1
I
5.1
1.27
s
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c
2.54
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bs
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3.3
Z
Pr
0.100
F
L
0.787
0.600
0.280
0.201
0.130
0.050
0.100
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P001A
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M74HCT08
SO-14 MECHANICAL DATA
mm.
DIM.
MIN.
TYP
A
inch
MAX.
MIN.
TYP.
a1
1.75
MAX.
0.1
0.068
0.2
a2
0.003
0.007
1.65
0.064
b
0.35
0.46
0.013
b1
0.19
0.25
0.007
C
0.5
0.018
)
s
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ct
0.010
0.019
c1
45° (typ.)
D
8.55
8.75
0.336
E
5.8
6.2
0.228
e
1.27
e3
7.62
F
3.8
4.0
4.6
5.3
L
0.5
)
(s
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1.27
S
Pr
0.344
0.244
0.050
G
M
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0.68
0.300
0.149
0.157
0.181
0.208
0.019
0.050
0.026
8° (max.)
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PO13G
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M74HCT08
TSSOP14 MECHANICAL DATA
mm.
inch
DIM.
MIN.
TYP
A
MAX.
MIN.
TYP.
MAX.
1.2
A1
0.05
A2
0.8
b
0.047
0.15
0.002
0.004
0.006
1.05
0.031
0.039
0.041
0.19
0.30
0.007
c
0.09
0.20
0.004
D
4.9
5
5.1
0.193
E
6.2
6.4
6.6
0.244
E1
4.3
4.4
4.48
1
e
bs
0.65 BSC
K
0°
L
0.45
let
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b
0.60
s
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0.75
du
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P
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0.0089
0.197
0.201
0.252
0.260
0.173
0.176
0.0256 BSC
0°
8°
0.018
0.024
0.030
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8°
0.012
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0.169
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A2
A1
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D
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PIN 1 IDENTIFICATION
1
0080337D
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M74HCT08
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consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from
its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications
mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information
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