74VHC08
QUAD 2-INPUT AND GATE
PRELIMINARY DATA
June 1999
s
HIGH SPEED: t
PD
= 4.3 ns (TYP.) at V
CC
= 5V
s
LOW POWER DISSIPATION:
I
CC
= 2
A (MAX.) at T
A
= 25
o
C
s
HIGH NOISE IMMUNITY:
V
NIH
= V
NIL
= 28% V
CC
(MIN.)
s
POWER DOWN PROTECTION ON INPUTS
s
SYMMETRICAL OUTPUT IMPEDANCE:
|I
OH
| = I
OL
= 8 mA (MIN)
s
BALANCED PROPAGATION DELAYS:
t
PLH
t
PHL
s
OPERATING VOLTAGE RANGE:
V
CC
(OPR) = 2V to 5.5V
s
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 08
s
IMPROVED LATCH-UP IMMUNITY
s
LOW NOISE: V
OLP
= 0.8V (Max.)
DESCRIPTION
The 74VHC08 is an advanced high-speed CMOS
QUAD 2-INPUT AND GATE fabricated with
sub-micron silicon gate and double-layer metal
wiring C
2
MOS technology.
The internal circuit is composed of 2 stages
including buffer output, which provide high noise
immunity and stable output.
Power down protection is provided on all inputs
and 0 to 7V can be accepted on inputs with no
regard to the supply voltage. This device can be
used to interface 5V to 3V.
All inputs
and
outputs are
equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES :
74VHC08M
74VHC08T
M
(Micro Package)
T
(TSSOP Package)
1/7
TRUTH TABLE
A
B
Y
L
L
L
L
H
L
H
L
L
H
H
H
PIN DESCRIPTION
PI N No
SYMBOL
NAME AND FUNCT ION
1, 4, 9, 12
1A to 4A
Data Inputs
2, 5, 10, 13
1B to 4B
Data Inputs
3, 6, 8, 11
1Y to 4Y
Data Outputs
7
GND
Ground (0V)
14
V
CC
Positive Supply Voltage
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Val ue
Unit
V
CC
Supply Voltage
-0.5 to +7.0
V
V
I
DC Input Voltage
-0.5 to +7.0
V
V
O
DC Output Voltage
-0.5 to V
CC
+ 0.5
V
I
IK
DC Input Diode Current
- 20
mA
I
OK
DC Output Diode Current
20
mA
I
O
DC Output Current
25
mA
I
CC
or I
GND
DC V
CC
or Ground Current
50
mA
T
stg
Storage Temperature
-65 to +150
o
C
T
L
Lead Temperature (10 sec)
300
o
C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied.
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Valu e
Uni t
V
CC
Supply Voltage
2.0 to 5.5
V
V
I
Input Voltage
0 to 5.5
V
V
O
Output Voltage
0 to V
CC
V
T
op
Operating Temperature
-40 to +85
o
C
dt/dv
Input Rise and Fall Time (see note 1) (V
CC
= 3.3
0.3V)
(V
CC
= 5.0
0.5V)
0 to 100
0 to 20
ns/V
ns/V
1) V
IN
from 30% to70%of V
CC
INPUT EQUIVALENT CIRCUIT
74VHC08
2/7
DC SPECIFICATIONS
Symb ol
Parameter
T est Cond ition s
Val ue
Un it
V
CC
(V)
T
A
= 25
o
C
-40 to 85
o
C
Min.
Typ .
Max.
Min .
Max.
V
IH
High Level Input
Voltage
2.0
1.5
1.5
V
3.0 to 5.5
0.7V
CC
0.7V
CC
V
IL
Low Level Input
Voltage
2.0
0.5
0.5
V
3.0 to 5.5
0.3V
CC
0.3V
CC
V
OH
High Level Output
Voltage
2.0
I
O
=-50
A
1.9
2.0
1.9
V
3.0
I
O
=-50
A
2.9
3.0
2.9
4.5
I
O
=-50
A
4.4
4.5
4.4
3.0
I
O
=-4 mA
2.58
2.48
4.5
I
O
=-8 mA
3.94
3.8
V
OL
Low Level Output
Voltage
2.0
I
O
=50
A
0.0
0.1
0.1
V
3.0
I
O
=50
A
0.0
0.1
0.1
4.5
I
O
=50
A
0.0
0.1
0.1
3.0
I
O
=4 mA
0.36
0.44
4.5
I
O
=8 mA
0.36
0.44
I
I
Input Leakage Current
0 to 5.5
V
I
= 5.5V or GND
0.1
1.0
A
I
CC
Quiescent Supply
Current
5.5
V
I
= V
CC
or GND
2
20
A
CAPACITIVE CHARACTERISTICS
Symb ol
Parameter
T est Cond ition s
Val ue
Un it
T
A
= 25
o
C
-40 to 85
o
C
Min.
Typ .
Max.
Min .
Max.
C
IN
Input Capacitance
4
10
10
pF
C
PD
Power Dissipation
Capacitance (note 1)
18
pF
1) C
PD
isdefined as the value of the IC'sinternal equivalent capacitance which is calculated fromthe operating current consumption without load. (Referto
Test Circuit).Average operating current can be obtained by the following equation. I
CC
(opr) = C
PD
V
CC
f
IN
+ I
CC
/4 (per Gate)
AC ELECTRICAL CHARACTERISTICS (Input t
r
= t
f
=3 ns)
Symb ol
Parameter
Test Co nditi on
Val ue
Un it
V
CC
(V)
C
L
(pF )
T
A
= 25
o
C
-40 to 85
o
C
Min.
Typ .
Max.
Min .
Max.
t
PLH
t
PHL
Propagation Delay
Time
3.3
(*)
15
6.2
8.8
1.0
10.5
ns
3.3
(*)
50
8.7
12.3
1.0
14.0
5.0
(**)
15
4.3
5.9
1.0
7.0
5.0
(**)
50
5.8
7.9
1.0
9.0
(*) Voltage range is 3.3V
0.3V
(**) Voltage range is 5V
0.5V
74VHC08
3/7
DYNAMIC SWITCHING CHARACTERISTICS
Symb ol
Parameter
T est Cond ition s
Val ue
Un it
V
CC
(V)
T
A
= 25
o
C
-40 to 85
o
C
Min.
Typ .
Max.
Min .
Max.
V
OLP
Dynamic Low Voltage
Quiet Output (note 1, 2)
5.0
C
L
= 50 pF
0.3
0.8
V
V
OLV
-0.8
-0.3
V
IHD
Dynamic High Voltage
Input (note 1, 3)
5.0
3.5
V
IL D
Dynamic Low Voltage
Input (note 1, 3)
5.0
1.5
1) Worst case package.
2) Max number of outputs defined as (n). Data inputs are driven 0V to 5.0V, (n -1) outputs switching and one output at GND.
3) Max number of data inputs (n) switching. (n-1) switching 0V to5.0V. Inputs under test switching: 5.0V to threshold (V
ILD
), 0V to threshold (V
IHD
), f=1MHz.
C
L
= 15/50 pF or equivalent (includes jig and probe capacitance)
R
T
= Z
OUT
of pulse generator (typically 50
)
WAVEFORM: PROPAGATION DELAYS (f=1MHz; 50% duty cycle)
TEST CIRCUIT
74VHC08
4/7
DIM.
mm
inch
MIN.
TYP.
MAX.
MIN.
TYP.
MAX.
A
1.75
0.068
a1
0.1
0.2
0.003
0.007
a2
1.65
0.064
b
0.35
0.46
0.013
0.018
b1
0.19
0.25
0.007
0.010
C
0.5
0.019
c1
45 (typ.)
D
8.55
8.75
0.336
0.344
E
5.8
6.2
0.228
0.244
e
1.27
0.050
e3
7.62
0.300
F
3.8
4.0
0.149
0.157
G
4.6
5.3
0.181
0.208
L
0.5
1.27
0.019
0.050
M
0.68
0.026
S
8 (max.)
P013G
SO-14 MECHANICAL DATA
74VHC08
5/7
DIM.
mm
inch
MIN.
TYP.
MAX.
MIN.
TYP.
MAX.
A
1.1
0.433
A1
0.05
0.10
0.15
0.002
0.004
0.006
A2
0.85
0.9
0.95
0.335
0.354
0.374
b
0.19
0.30
0.0075
0.0118
c
0.09
0.20
0.0035
0.0079
D
4.9
5
5.1
0.193
0.197
0.201
E
6.25
6.4
6.5
0.246
0.252
0.256
E1
4.3
4.4
4.48
0.169
0.173
0.176
e
0.65 BSC
0.0256 BSC
K
0
o
4
o
8
o
0
o
4
o
8
o
L
0.50
0.60
0.70
0.020
0.024
0.028
c
E
b
A2
A
E1
D
1
PIN 1 IDENTIFICATION
A1
L
K
e
TSSOP14 MECHANICAL DATA
74VHC08
6/7
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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
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subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products
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