Datasheet

SN75976A, SN55976A
9-CHANNEL DIFFERENTIAL TRANSCEIVER
SLLS218B – MAY 1995 – REVISED MAY 1997
9
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
driver switching characteristics over recommended operating conditions (unless otherwise
noted)
PARAMETER
TEST CONDITIONS
SN75976A
UNIT
PARAMETER
TEST
CONDITIONS
MIN TYP
†
MAX
UNIT
2.5 13.5 ns
’976A1
V
CC
= 5 V, T
C
= 25°C 3 11 ns
t
d
Propagation delay time, t
PHL
or t
PLH
V
CC
= 5 V, T
C
= 100°C 5 13 ns
t
pd
gy,
PHL PLH
(see Figures 1 and 2)
4.5 11.5 ns
’976A2
V
CC
= 5 V, T
C
= 25°C 5 9 ns
V
CC
= 5 V, T
C
= 100°C 7 11 ns
t
k(li )
Skew limit, maximum t
p
d
– minimum t
p
d
’976A1 8 ns
t
sk(lim)
,
dd
(see Note 5)
’976A2
4 ns
t
sk(p)
Pulse skew, |t
PHL
– t
PLH
| 4 ns
t
f
Fall time S1 to B, See Figure 2 4 ns
t
r
Rise time See Figure 2 8 ns
t
en
Enable time, control inputs to active output 50 ns
t
dis
Disable time, control inputs to high-impedance output 100 ns
t
PHZ
Propagation delay time, high-level to high-impedance output 17 100 ns
t
PLZ
Propagation delay time, low-level to high-impedance output
See Figures 5 and 6
25 100 ns
t
PZH
Propagation delay time, high-impedance to high-level output
See
Fig
u
res
5
and
6
17 50 ns
t
PZL
Propagation delay time, high-impedance to low-level output 17 50 ns
†
All typical values are at V
CC
= 5 V, T
A
= 25°C.
NOTE 5: This parameter is applicable at one V
CC
and operating temperature within the recommended operating conditions and to any two
devices.
driver switching characteristics over recommended operating conditions (unless otherwise
noted)
PARAMETER
TEST CONDITIONS
SN55976A
UNIT
PARAMETER
TEST
CONDITIONS
MIN TYP
†
MAX
UNIT
t
d
Propagation delay time, t
PHL
or t
PLH
’976A1 V
CC
= 5 V, T
A
= 25°C 15 ns
t
pd
gy,
PHL PLH
(see Figures 1 and 2)
’976A2
V
CC
= 5 V, T
A
= 25°C 13.5 ns
t
k(li )
Skew limit, maximum t
p
d
– minimum t
p
d
’976A1 8 ns
t
sk(lim)
,
dd
(see Note 5)
’976A2
4 ns
t
sk(p)
Pulse skew, |t
PHL
– t
PLH
| 4 ns
t
f
Fall time S1 to B, See Figure 2 4 ns
t
r
Rise time See Figure 2 8 ns
t
en
Enable time, control inputs to active output 60 ns
t
dis
Disable time, control inputs to high-impedance output 140 ns
t
PHZ
Propagation delay time, high-level to high-impedance output 120 ns
t
PLZ
Propagation delay time, low-level to high-impedance output
See Figures 5 and 6
120 ns
t
PZH
Propagation delay time, high-impedance to high-level output
See
Fig
u
res
5
and
6
60 ns
t
PZL
Propagation delay time, high-impedance to low-level output 60 ns
†
All typical values are at V
CC
= 5 V, T
A
= 25°C.
NOTE 5. This parameter is applicable at one V
CC
and operating temperature within the recommended operating conditions and to any two
devices.