74lvth646 Fairchild Semiconductor, 74lvth646 Datasheet - Page 6

• Manufacturer Part Number: 74lvth646
• Description: Low Voltage Octal Transceiver/register With 3-state Outputs
• Manufacturer: Fairchild Semiconductor

www.fairchildsemi.com
C
C
f
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
AC Electrical Characteristics
Note 9: 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
Capacitance
Note 10: Capacitance is measured at frequency f
MAX
PLH
PHL
PLH
PHL
PLH
PHL
PZH
PZL
PHZ
PLZ
PZH
PZL
PHZ
PLZ
W
S
H
OSHL
OSLH
IN
I/O
Symbol
Symbol
Input Capacitance
Input/Output Capacitance
Maximum Clock Frequency
Propagation Delay Data to Output
Clock to A or B
Propagation Delay Data to Output
Data to A or B
Propagation Delay Data to Output
SBA or SAB to A or B
Output Enable Time
OE to A or B
Output Disable Time
OE to A or B
Output Enable Time
DIR to A or B
Output Disable Time
DIR to A or B
Pulse Duration
Setup Time
Hold Time
Output to Output Skew (Note 9)
(Note 10)
Parameter
Parameter
1 MHz, per MIL-STD-883B, Method 3012.
A or B Before Clock, Data HIGH
A or B Before Clock, Data LOW
V
V
CC
CC
Clock HIGH or LOW
A or B after Clock
0V, V
3.0V, V
I
6
O
0V or V
Conditions
0V or V
CC
OSHL
CC
V
) or LOW-to-HIGH (t
Min
150
CC
1.8
1.8
1.3
1.3
1.5
1.5
1.1
1.1
1.9
1.6
1.3
1.3
1.5
1.5
3.3
1.2
1.6
0.8
3.3V
C
T
L
A
Max
0.3V
5.7
5.0
4.6
4.6
5.5
5.5
5.7
6.3
5.7
5.5
6.1
6.7
6.2
5.6
1.0
1.0
50 pF, R
40 C to 85 C
OSLH
).
L
Typical
Min
150
1.8
1.8
1.3
1.3
1.5
1.5
1.1
1.1
2.3
2.3
1.3
1.3
1.5
1.5
3.3
1.5
2.2
0.8
500
4
8
V
CC
2.7V
Max
6.3
5.6
5.0
5.3
6.5
6.3
6.8
7.3
6.1
5.9
6.7
7.7
7.1
6.3
1.0
1.0
Units
pF
pF
Units
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns