Datasheet

SN54F245, SN74F245
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SDFS010A – MARCH 1987 – REVISED OCTOBER 1993
2–4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
switching characteristics (see Note 2)
PARAMETER
FROM
(
INPUT
)
TO
(
OUTPUT
)
V
CC
= 5 V,
C
L
= 50 pF,
R
L
= 500 Ω,
T
A
= 25°C
V
CC
= 4.5 V to 5.5 V,
C
L
= 50 pF,
R
L
= 500Ω,
T
A
= MIN to MAX
†
UNIT
(INPUT)
(OUTPUT)
′F245 SN54F245 SN74F245
MIN TYP MAX MIN MAX MIN MAX
t
PLH
AorB
BorA
1.7 3.8 6 1.2 7.5 1.7 7
ns
t
PHL
A
or
B
B
or
A
1.7 4.2 6 1.2 7.5 1.7 7
ns
t
PZH
OE
AorB
2.2 4.9 7 1.7 9 2.2 8
ns
t
PZL
OE
A
or
B
2.7 5.6 8 2.2 10 2.7 9
ns
t
PHZ
OE
AorB
2.2 4.6 6.5 1.7 9 2.2 7.5
ns
t
PLZ
OE
A
or
B
1.2 4.6 6.5 1.2 10 1.2 7.5
ns
†
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
NOTE 2: Load circuits and waveforms are shown in Section 1.