5 www.fairchildsemi.com
74LVTH543
AC Electrical Characteristics
Note 8: Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device. The
specification applies to any outputs switching in the same direction, either HIGH-to-LOW (t
OSHL
) or LOW-to-HIGH (t
OSLH
).
Capacitance (Note 9)
Note 9: Capacitance is measured at frequency f = 1 MHz, per MIL-STD-883B, Method 3012.
Symbol Parameter
T
A
= −40°C to +85°C
Units
C
L
= 50 pF, R
L
= 500Ω
V
CC
= 3.3V ± 0.3V V
CC
= 2.7V
MinMaxMinMax
t
PLH
Propagation Delay 1.3 4.4 1.3 4.8
ns
t
PHL
Data to Outputs 1.3 4.6 1.3 5.2
t
PLH
Propagation Delay 1.3 5.4 1.3 6.4
ns
t
PHL
LE to A or B 1.3 5.8 1.3 6.6
t
PZH
Output Enable Time 1.1 5.5 1.1 6.3
ns
t
PZL
OE to A or B 1.1 6.1 1.1 7.2
t
PHZ
Output Disable Time 2.0 5.7 2.0 5.9
ns
t
PLZ
OE to A or B 2.0 5.3 2.0 5.9
t
PZH
Output Enable Time 1.3 5.9 1.3 6.8
ns
t
PZL
CE to A or B 1.3 6.2 1.3 7.4
t
PHZ
Output Disable Time 2.1 5.8 2.1 6.1
ns
t
PLZ
CE to A or B 1.6 5.4 1.6 5.9
t
W
Pulse Duration LE LOW 3.3 3.3 ns
t
S
Setup Time A or B before LE, Data HIGH 0.4 0.4
ns
A or B before LE, Data LOW 1.0 1.5
A or B before CE, Data HIGH 0.2 0.2
A or B before CE, Data LOW 0.7 1.2
t
H
Hold Time A or B before LE, Data HIGH 1.5 0.6
ns
A or B before LE, Data LOW 1.3 1.5
A or B before CE, Data HIGH 1.6 0.5
A or B before CE, Data LOW 1.4 1.6
t
OSHL
Output to Output Skew (Note 8) 1.0 1.0
ns
t
OSLH
1.0 1.0
Symbol Parameter Conditions Typical Units
C
IN
Input Capacitance V
CC
= 0V, V
I
= 0V or V
CC
4pF
C
I/O
Input/Output Capacitance V
CC
= 3.0V, V
O
= 0V or V
CC
8pF
