Pin settings 74LCX125
4/16 Doc ID 4980 Rev 8
2 Pin settings
2.1 Pin connections
Figure 3. Pin connections (top through view)
2.2 Pin description
2.3 Truth table
Table 2. Pin description
Pin number Symbol Name and function
1, 4, 10, 13 1G
TO 4G Output enable input
2, 5, 9, 12 1A TO 4A Data inputs
3, 6, 8, 11 1Y TO 4Y Data outputs
7 GND Ground (0 V)
14 V
CC
Positive supply voltage
Table 3. Truth table
Inputs Output
AG
Y
a X
(1)
1. “Do not care”.
H a Z
(2)
2. High impedance.
LLL
HLH
74LCX125 Maximum ratings
Doc ID 4980 Rev 8 5/16
3 Maximum ratings
Stressing the device above the rating listed in Table 4: Absolute maximum ratings 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 Table 5: Recommended
operating conditions of this specification is not implied. Exposure to absolute maximum
rating conditions for extended periods may affect device reliability.
Recommended operating conditions
Table 4. Absolute maximum ratings
Symbol Parameter Value 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 (V
CC
= 0 V) -0.5 to +7.0 V
V
O
DC output voltage (high or low state)
(1)
1. I
O
absolute maximum rating must be observed.
-0.5 to V
CC
+ 0.5 V
I
IK
DC input diode current -50 mA
I
OK
DC output diode current
(2)
2. V
O
< GND.
-50 mA
I
O
DC output current ± 50 mA
I
CC
DC supply current per supply pin ± 100 mA
I
GND
DC ground current per supply pin ± 100 mA
T
stg
Storage temperature -65 to +150 °C
T
L
Lead temperature (10 sec.) 300 °C
Table 5. Recommended operating conditions
Symbol Parameter Value Unit
V
CC
Supply voltage
(1)
1. Truth table guaranteed: 1.5 V to 3.6 V.
2.0 to 3.6 V
V
I
Input voltage 0 to 5.5 V
V
O
Output voltage (V
CC
= 0 V) 0 to 5.5 V
V
O
Output voltage (high or low state) 0 to V
CC
V
I
OH
, I
OL
High or low level output current (V
CC
= 3.0 to 3.6 V) ± 24 mA
I
OH
, I
OL
High or low level output current (V
CC
= 2.7 V) ± 12 mA
dt/dv Input rise and fall time
(2)
2. V
IN
from 0.8 V to 2 V at V
CC
= 3.0 V.
0 to 10 ns/V
Electrical characteristics 74LCX125
6/16 Doc ID 4980 Rev 8
4 Electrical characteristics
Table 6. DC specifications
Symbol Parameter
Test condition Value
Unit
V
CC
(V)
-40 to 85 °C
Min. Max.
V
IH
High level input voltage
2.7 to 3.6
2.0 V
V
IL
Low level input voltage 0.8 V
V
OH
High level output
voltage
2.7 to 3.6 I
O
= -100 μAV
CC
- 0.2
V
2.7 I
O
= -12 mA 2.2
3.0
I
O
= -18 mA 2.4
I
O
= -24 mA 2.2
V
OL
Low level output
voltage
2.7 to 3.6 I
O
= 100 μA0.2
V
2.7 I
O
= 12 mA 0.4
3.0
I
O
= 16 mA 0.4
I
O
= 24 mA 0.55
I
I
Input leakage current 2.7 to 3.6 V
I
= 0 to 5.5 V ± 5 μA
I
off
Power OFF leakage
current
0V
I
or V
O
= 5.5 V 10 μA
I
OZ
High Impedance
output leakage current
2.7 to 3.6
V
I
= V
IH
or V
IL
V
O
= 0 to V
CC
± 5 μA
I
CC
Quiescent supply
current
2.7 to 3.6
V
I
= V
CC
or GND 10
μA
V
I
or V
O
= 3.6 to 5.5 V ± 10
ΔI
CC
I incr. per input 2.7 to 3.6 V
IH
= V
CC
- 0.6 V 500 μA
Table 7. Dynamic switching characteristics
Symbol Parameter
Test condition Value
Unit
V
CC
(V)
T
A
= 25 °C
Min. Typ. Max.
V
OLP
Dynamic low level
quiet output
(1)
1. Number of outputs defined as “n”. Measured with “n-1” outputs switching from HIGH to LOW or LOW to
HIGH. The remaining output is measured in the LOW state.
3.3
C
L
= 50 pF
V
IL
= 0 V, V
IH
= 3.3 V
0.8
V
V
OLV
-0.8

74LCX125YMTR

Mfr. #:
Manufacturer:
STMicroelectronics
Description:
Buffers & Line Drivers Lo Vltg CMOS quad bus buffer (3-State)
Lifecycle:
New from this manufacturer.
Delivery:
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