Datasheet

2.2.1 Voltage and current operating requirements
Table 5. Voltage and current operating requirements
Symbol Description Min. Max. Unit Notes
V
DD
Supply voltage 1.71 3.6 V
V
DDA
Analog supply voltage 1.71 3.6 V —
V
DD
– V
DDA
V
DD
-to-V
DDA
differential voltage –0.1 0.1 V —
V
SS
– V
SSA
V
SS
-to-V
SSA
differential voltage –0.1 0.1 V —
V
IH
Input high voltage
• 2.7 V ≤ V
DD
≤ 3.6 V
• 1.7 V ≤ V
DD
≤ 2.7 V
0.7 × V
DD
0.75 × V
DD
—
—
V
V
—
V
IL
Input low voltage
• 2.7 V ≤ V
DD
≤ 3.6 V
• 1.7 V ≤ V
DD
≤ 2.7 V
—
—
0.35 × V
DD
0.3 × V
DD
V
V
—
V
HYS
Input hysteresis 0.06 × V
DD
— V —
I
ICIO
IO pin negative DC injection current—single pin
• V
IN
< V
SS
–0.3V (negative current injection)
• V
IN
< V
SS
–0.3V (positive current injection)
–3
—
—
+3
mA
1
I
ICcont
Contiguous pin DC injection current —regional limit,
includes sum of negative injection currents or sum of
positive injection currents of 16 contiguous pins
• Negative current injection
• Positive current injection
–25
—
—
+25
mA
—
V
ODPU
Open drain pullup voltage level V
DD
V
DD
V 2
V
RAM
V
DD
voltage required to retain RAM 1.2 — V —
1. All IO pins are internally clamped to V
SS
and V
DD
through ESD protection diodes. If V
IN
is greater than V
IO_MIN
(=V
SS
-0.3V) and V
IN
is less than V
IO_MAX
(=V
DD
+0.3V) is observed, then there is no need to provide current limiting
resistors at the pads. If these limits cannot be observed then a current limiting resistor is required. The negative DC
injection current limiting resistor is calculated as R=(V
IO_MIN
-V
IN
)/|I
ICIO
|. The positive injection current limiting resistor is
calculated as R=(V
IN
-V
IO_MAX
)/|I
ICIO
|. Select the larger of these two calculated resistances.
2. Open drain outputs must be pulled to V
DD
.
2.2.2 LVD and POR operating requirements
Table 6. V
DD
supply LVD and POR operating requirements
Symbol Description Min. Typ. Max. Unit Notes
V
POR
Falling V
DD
POR detect voltage 0.8 1.1 1.5 V —
V
LVDH
Falling low-voltage detect threshold — high
range (LVDV = 01)
2.48 2.56 2.64 V —
Low-voltage warning thresholds — high range 1
Table continues on the next page...
General
6 Kinetis KL05 32 KB Flash, Rev4 03/2014.
Freescale Semiconductor, Inc.