User's Manual

13
3.3 Terminal characteristics
Min
Typ
Max
Unit
I/O voltage levels
V
IL
input logic level low
-0.4
-
0.25xVDD
V
V
IH
input logic level high
0.625xVDD
-
Vdd + 0.3
V
V
OL
output logic level low
0
-
0.125
V
V
OH
output logic level high
0.75xVDD
-
VDD
V
Reset terminal
V
TH,res
threshold voltage
0.64
0.85
1.5
V
R
IRES
input resistance
220
k
C
IRES
input capacitance
220
nF
Input and tri-state current with
Strong pull-up
-100
-40
-10

Strong pull-down
10
40
100

Weak pull-up
-5
-1
-0.2

Weak pull-down
0.2
1
5

I/O pad leakage current
-1
0
1

LED driver pad
Off current
-
1
2

On resistance (V
PAD
< 0.5 V)
-
20
33

On resistance, pad enabled by battery charger
(V
PAD
< 0.5 V)
-
20
50

Table 3: Terminal characteristics