74LCX08
Low voltage CMOS QUAD 2-input AND gate
with 5V tolerant inputs
Features
■
■
■
■
■
■
■
■
■
■
5V tolerant inputs
High speed:
– t
PD
= 4.1ns (Max) at V
CC
= 3V
Power down protection on inputs and outputs
Symmetrical output impedance:
– |I
OH
| = I
OL
= 24mA (Min) at V
CC
= 3V
PCI bus levels guaranteed at 24mA
Balanced propagation delays:
– t
PLH
≅
t
PHL
Operating voltage range:
– V
CC
(Opr) = 2.0V to 3.6V
Pin and function compatible with
74 series 08
Latch-up performance exceeds
500mA (JESD 17)
ESD performance:
– HBM > 2000V
(MIL STD 883 method 3015); MM > 200V
SO-14
TSSOP14
Description
The 74LCX08 is a low voltage CMOS QUAD 2-
input AND gate fabricated with sub-micron silicon
gate and double-layer metal wiring C
2
MOS
technology. It is ideal for low power and high
speed 3.3V applications; it can be interfaced to
5V signal environment for inputs.
It has same speed performance at 3.3V than 5V
AC/ACT family, combined with a lower power
consumption.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
Order codes
Part number
74LCX08MTR
74LCX08TTR
Package
SO-14
TSSOP14
Packaging
Tape and reel
Tape and reel
July 2006
Rev 5
1/15
www.st.com
15
Contents
74LCX08
Contents
1
2
Logic symbols and I/O equivalent circuit . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1
2.2
2.3
Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Truth table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3
Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1
Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4
5
6
7
8
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2/15
74LCX08
Logic symbols and I/O equivalent circuit
1
Logic symbols and I/O equivalent circuit
Figure 1.
IEC logic symbols
Figure 2.
Input and output equivalent circuit
3/15
Pin settings
74LCX08
2
2.1
Pin settings
Pin connection
Figure 3.
Pin connection
(top through view)
2.2
Pin description
Table 1. Pin description
Pin N°
1, 4, 9, 12
2, 5, 10, 13
3, 6, 8, 11
7
14
Symbol
1A to 4A
1B to 4B
1Y to 4Y
GND
V
CC
Data inputs
Data inputs
Data outputs
Ground (0V)
Positive supply voltage
Name and function
2.3
Truth table
Table 2. Truth table
Inputs
A
L
L
H
H
B
L
H
L
H
Output
Y
L
L
L
H
4/15
74LCX08
Maximum rating
3
Maximum rating
stressing the device above the rating listed in the “absolute maximum ratings” table may
cause permanent damage to the device. these are stress ratings only and operation of the
device at these or any other conditions above those indicated in the operating sections of
this specification is not implied. exposure to absolute maximum rating conditions for
extended periods may affect device reliability. refer also to the STMicroelectronics sure
program and other relevant quality documents.
Table 3. Absolute maximum ratings
Symbol
V
CC
V
I
V
O
V
O
I
IK
I
OK
I
O
I
CC
I
GND
T
stg
T
L
Supply voltage
DC input voltage
DC output voltage (V
CC
= 0V)
DC output voltage (high or low state)
(1)
DC input diode current
DC output diode current
(2)
DC output current
DC supply current per supply pin
DC ground current per supply pin
Storage temperature
Lead temperature (10 sec)
Parameter
Value
-0.5 to +7.0
-0.5 to +7.0
-0.5 to +7.0
-0.5 to V
CC
+ 0.5
-50
-50
±
50
±
100
±
100
-65 to +150
300
Unit
V
V
V
V
mA
mA
mA
mA
mA
°C
°C
1. I
O
absolute maximum rating must be observed
2. V
O
< GND
3.1
Recommended operating conditions
Table 4. Recommended operating conditions
Symbol
V
CC
V
I
V
O
V
O
I
OH
, I
OL
I
OH
, I
OL
T
op
dt/dv
Supply voltage
(1)
Input voltage
Output voltage (V
CC
= 0V)
Output voltage (high or low state)
High or low level output current (V
CC
= 3.0 to 3.6V)
High or low level output current (V
CC
= 2.7V)
Operating temperature
Input rise and fall time
(2)
Parameter
Value
2.0 to 3.6
0 to 5.5
0 to 5.5
0 to V
CC
±
24
±
12
-40 to 85
0 to 10
Unit
V
V
V
V
mA
mA
°C
ns/V
1. Truth table guaranteed: 1.5V to 3.6V
2. V
IN
from 0.8V to 2V at V
CC
= 3.0V
5/15
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