Product data

70
Table 22.5 Bus Drive Characteristics
Conditions: V
CC
= 2.7 V to 5.5 V, V
SS
= 0 V
Applicable Pins: SCL1, SCL0, SDA1, SDA0 (bus drive function selected)
Item Symbol Min Typ Max Unit Test Conditions
Schmitt trigger
input voltage
V
T
–
V
CC
× 0.3 — — V V
CC
= 2.7 V to 5.5 V
V
T
+
——V
CC
× 0.7 V
CC
= 2.7 V to 5.5 V
V
T
+
– V
T
–
V
CC
× 0.05 — — V
CC
= 2.7 V to 5.5 V
Input high voltage V
IH
V
CC
× 0.7 — V
CC
+ 0.5 V V
CC
= 2.7 V to 5.5 V
Input low voltage V
IL
–0.5 — V
CC
× 0.3 V
CC
= 2.7 V to 5.5 V
Output low voltage V
OL
— — 0.8 V I
OL
= 16 mA,
V
CC
= 4.5 V to 5.5 V
— — 0.5 I
OL
= 8 mA
— — 0.4 I
OL
= 3 mA
Input capacitance C
in
— — 20 pF V
in
= 0 V, f = 1 MHz,
T
a
= 25°C
Three-state leakage
current (off state)
| I
TSI
| — — 1.0 µA V
in
= 0.5 to V
CC
– 0.5 V
SCL, SDA output
fall time
t
Of
20 + 0.1Cb — 250 ns V
CC
= 2.7 V to 5.5 V
2 kΩ
This chip
Port
Darlin
g
ton pair
Figure 22.1 Darlington Pair Drive Circuit (Example)