Datasheet

Electrical characteristics ST2378E
10/20 Doc ID 9489 Rev 2
Table 6. AC characteristic (open drain driving)
Symbol Parameter
Test condition
(1)
Value
Unit
C
L
= 15 pF, t
r
= t
f
≤ 6 ns
(2)
Driver output
R
T
≤ 50 Ω
-40 to +85 °C
V
L
(V)
(3)
V
CC
(V)
(3)
Min. Typ.
(4)
Max.
t
RVCC
Rise time I/O
VCC
(5)
1.8 1.8 210 300
ns
1.8 5.0 59 150
t
FVCC
Fall time I/O
VCC
(5)
1.8 1.8 12 30
ns
1.8 5.0 20 30
t
RVL
Rise time I/O
VL
(5)
1.8 1.8 210 300
ns
1.8 5.0 96 150
t
FVL
Fall time I/O
VL
(5)
1.8 1.8 11 30
ns
1.8 5.0 11 30
t
IOVL-VCC
Propagation delay time
(6)
I/O
VL-LH
to I/O
VCC-LH
I/O
VL-HL
to I/O
VCC-HL
t
PLH
1.8 1.8 210 300
ns
1.8 5.0 100 150
t
PHL
1.8 1.8 7 20
1.8 5.0 14 20
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 1.8 210 300
ns
1.8 5.0 57 150
t
PHL
1.8 1.8 7 20
1.8 5.0 8 20
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 10 20
ns
1.8 5.0 2 10
DR Maximum data rate 1.8 to 5.0 V
L
to 5.0 800 kbps
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.