DocID009489 Rev 3 9/20
ST2378E Electrical characteristics
20
Symbol Parameter
Test condition
(1)
Value
Unit
C
L
= 15 pF, t
r
= t
f
6
ns
(2)
Driver output
R
T
50
-40 to +85 °C
V
L
(V)
(3)
V
CC
(V)
(3)
Min. Typ.
(4)
Max.
t
IOVCC-VL
Propagation delay time
(6)
I/O
VCC-LH
to I/O
VL-LH
I/O
VCC-HL
to I/O
VL-HL
t
PLH
1.8 1.8 2 15
ns
1.8 2.5 2 15
1.8 3.3 2 15
1.8 5.0 2 15
2.5 3.3 2 15
t
PHL
1.8 1.8 5 15
1.8 2.5 5 15
1.8 3.3 5 15
1.8 5.0 6 15
2.5 3.3 4 15
t
PZL
t
PZH
t
PLZ
t
PZL
Output enable and disable time
1.8 1.8 60 80
ns
1.8 5.0 150 200
t
OSLH
t
OSHL
Channel to channel skew time
(7)
,
(8)
1.8 1.8 0.1 1
ns
1.8 5.0 0.5 1
DR Maximum data rate 1.8 to 5.0 V
L
to 5.0 13 Mbps
1. For normal operation, ensure V
L
< (V
CC
+ 0.3 V). During power-up, V
L
> (V
CC
+ 0.3 V) will not damage the device.
2. For V
CC
= V
L
= 1.8 V, t
r
= t
f
4 ns.
3. Power supply range: V
L
, V
CC
1.8 V ± 5%, 2.5 ± 0.2 V, 3.3 ± 0.3 V, 5.0 ± 0.5 V.
4. Typical values are referred to T
A
= 25 °C.
5. Rise time: 10% to 90%, fall time 90% to 10%.
6. Propagation delay time: 50% to 50%.
7. Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the
same device switching in the same direction, either HIGH or LOW (t
OSLH
= | t
PLHm
- t
PLHn
|, t
OSHL
= | t
PHLm
- t
PHLn
|.
8. Each translator equally loaded; parameter guaranteed by design.
Table 6. AC electrical characteristics (totem pole driving) (continued)
