Datasheet

www.ti.com
Switching Characteristics
Switching Characteristics
Operating Characteristics
SN54LVCH245A, SN74LVCH245A
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCES008O – JULY 1995 – REVISED DECEMBER 2005
over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1 )
SN54LVCH245A
FROM TO V
CC
= 3.3 V
PARAMETER V
CC
= 2.7 V UNIT
(INPUT) (OUTPUT) ± 0.3 V
MIN MAX MIN MAX
t
pd
A or B B or A 8 1 7 ns
t
en
OE A or B 9.5 1 8.5 ns
t
dis
OE A or B 8.5 1 7.5 ns
over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1 )
SN74LVCH245A
FROM TO V
CC
= 1.8 V V
CC
= 2.5 V V
CC
= 3.3 V
PARAMETER V
CC
= 2.7 V UNIT
(INPUT) (OUTPUT) ± 0.15 V ± 0.2 V ± 0.3 V
MIN MAX MIN MAX MIN MAX MIN MAX
t
pd
A or B B or A
(1) (1) (1) (1)
7.3 1.5 6.3 ns
t
en
OE A or B
(1) (1) (1) (1)
9.5 1.5 8.5 ns
t
dis
OE A or B
(1) (1) (1) (1)
8.5 1.7 7.5 ns
t
sk(o)
1 ns
(1) This information was not available at the time of publication.
T
A
= 25 ° C
V
CC
= 1.8 V V
CC
= 2.5 V V
CC
= 3.3 V
TEST
PARAMETER UNIT
CONDITIONS
TYP TYP TYP
Outputs enabled
(1) (1)
47
Power dissipation capacitance
C
pd
f = 10 MHz pF
per transceiver
Outputs disabled
(1) (1)
2
(1) This information was not available at the time of publication.
6