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74LCX125YMTR

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74LCX125 Electrical characteristics
Doc ID 4980 Rev 8 7/16
Table 8. AC electrical characteristics
Symbol Parameter
Test condition Value
Unit
V
CC
(V)
C
L
(pF)
R
L
(Ω)
t
s
= t
r
(ns)
-40 to 85 °C
Min. Max.
t
PLH
, t
PHL
Propagation delay
time
2.7
50 500 2.5
6.0
ns
3.0 to 3.6 1.0 5.2
t
PZL
, t
PZH
Output enable
time to HIGH and
LOW level
2.7
50 500 2.5
1.0 6.0
ns
3.0 to 3.6 1.0 5.0
t
PLZ
, t
PHZ
Output disable
time to HIGH and
LOW level
2.7
50 500 2.5
1.0 6.0
ns
3.0 to 3.6 1.0 5.0
t
OSLH
t
OSHL
Output to output
skew time
(1)
(2)
1. Skew is defined as the absolute value of the difference between the actual propagation delay for any two
outputs of the same device switching in the same direction, either HIGH or LOW (t
OSLH
= | t
PLHm
- t
PLHn
|,
t
OSHL
= | t
PHLm
- t
PHLn
|).
2. Parameter guaranteed by design.
3.0 to 3.6 50 500 2.5 1.0 ns
Table 9. Capacitive characteristics
Symbol Parameter
Test condition Value
Unit
V
CC
(V)
T
A
= 25 °C
Min. Typ. Max.
C
IN
Input capacitance 3.3 V
IN
= 0 to V
CC
5pF
C
OUT
Output capacitance 3.3 V
IN
= 0 to V
CC
10 pF
C
PD
Power dissipation
capacitance
(1)
1. C
PD
is defined as the value of the IC’s internal equivalent capacitance which is calculated from the
operating current consumption without load. (Refer to Table 10: Test circuit. Average operating current can
be obtained by the following equation. I
CC(opr)
= C
PD
x V
CC
x f
IN
+ I
CC
/4 (per gate).
3.3
f
IN
= 10 MHz
V
IN
= 0 or V
CC
37 pF
Test circuit 74LCX125
8/16 Doc ID 4980 Rev 8
5 Test circuit
Figure 4. Test circuit
Note: C
L
= 50 pF or equivalent (includes jig and probe capacitance)
R
L
= 500
Ω
or equivalent
R
T
= Z
OUT
of pulse generator (typically 50
Ω
).
Table 10. Test circuit
Test Switch
t
PLH
, t
PHL
Open
t
PZL
, t
PLZ
6 V
t
PZH
, t
PHZ
GND
74LCX125 Waveforms
Doc ID 4980 Rev 8 9/16
6 Waveforms
Figure 5. Propagation delay (f = 1 MHz; 50% duty cycle)
Figure 6. Output enable and disable time (f = 1 MHz; 50% duty cycle)
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

74LCX125YMTR

Mfr. #:
Buy 74LCX125YMTR
Manufacturer:
STMicroelectronics
Description:
Buffers & Line Drivers Lo Vltg CMOS quad bus buffer (3-State)
Lifecycle:
New from this manufacturer.
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