Datasheet

SN54LV245A, SN74LV245A
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCLS382N ï SEPTEMBER 1997 ï REVISED AUGUST 2010
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
switching characteristics over recommended operating free-air temperature range,
V
CC
= 5 V ± 0.5 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM TO LOAD
T
A
= 25°C SN54LV245A SN74LV245A
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
LOAD
CAPACITANCE
MIN TYP MAX MIN MAX MIN MAX
UNIT
t
pd
A or B B or A 4.3* 5.5* 1* 6.5* 1 6.5
t
en
OE
A or B
C
L
= 15 pF
5.7* 8.5* 1* 10.6* 1 10
ns
t
dis
OE
A or B
C
L
15
pF
7.8* 12.8* 1* 14.7* 1 14.2
ns
t
pd
A or B B or A 5.6 7.5 1 8.5 1 8.5
t
en
OE
A or B
C50pF
7 10.6 1 12 1 12
ns
t
dis
OE
A or B
C
L
= 50 pF
10.9 14.7 1 16 1 16
ns
t
sk(o)
1 1
* On products compliant to MIL-PRF-38535, this parameter is not production tested.
noise characteristics, V
CC
= 3.3 V, C
L
= 50 pF, T
A
= 25°C (see Note 6)
PARAMETER
SN74LV245A
UNIT
PARAMETER
MIN TYP MAX
UNIT
V
OL(P)
Quiet output, maximum dynamic V
OL
0.5 0.8 V
V
OL(V)
Quiet output, minimum dynamic V
OL
ï0.4 ï0.8 V
V
OH(V)
Quiet output, minimum dynamic V
OH
2.9 V
V
IH(D)
High-level dynamic input voltage 2.31 V
V
IL(D)
Low-level dynamic input voltage 0.99 V
NOTE 6: Characteristics are for surface-mount packages only.
operating characteristics, T
A
= 25°C
PARAMETER TEST CONDITIONS V
CC
TYP UNIT
C
Power dissipation capacitance
Outputs enabled
C50pF
f 10 MHz
3.3 V 20
pF
C
pd
Power dissipation capacitance Outputs enabled C
L
= 50 pF, f = 10 MHz
5 V 25
pF
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.