MK20DN512VMC10 FREESCALE [Freescale Semiconductor, Inc], MK20DN512VMC10 Datasheet - Page 11

• Manufacturer Part Number: MK20DN512VMC10
• Description: K20 Sub-Family
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

5.2 Nonswitching electrical specifications
5.2.1 Voltage and current operating requirements
1. All 5 V tolerant digital I/O pins are internally clamped to V
2. Analog pins are defined as pins that do not have an associated general purpose I/O port function.
3. All analog pins are internally clamped to V
Freescale Semiconductor, Inc.
V
V
DD
V
SS
Symbol
to V
the pads. If this limit cannot be observed then a current limiting resistor is required. The negative DC injection current
limiting resistor is calculated as R=(V
(=V
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
calcualted as R=(V
I
I
V
V
V
I
RFVBAT
V
ICDIO
ICAIO
ICcont
V
V
V
– V
– V
DDA
RAM
BAT
HYS
DD
IH
IL
SS
DD
DDA
SSA
-0.3V) and V
. If V
Supply voltage
Analog supply voltage
V
V
RTC battery supply voltage
Input high voltage
Input low voltage
Input hysteresis
Digital pin negative DC injection current — single pin
Analog
single pin
Contiguous pin DC injection current —regional limit,
includes sum of negative injection currents or sum of
positive injection currents of 16 contiguous pins
V
V
IN
Description
DD
SS
DD
BAT
greater than V
-to-V
• 2.7 V ≤ V
• 1.7 V ≤ V
• 2.7 V ≤ V
• 1.7 V ≤ V
• V
• V
• V
• Negative current injection
• Positive current injection
-to-V
voltage required to retain RAM
voltage required to retain the VBAT register file
2
IN
IN
IN
IN
, EXTAL, and XTAL pin DC injection current —
IN
SSA
DDA
Table 1. Voltage and current operating requirements
< V
< V
> V
-V
is less than V
AIO_MAX
differential voltage
differential voltage
SS
SS
DD
DD
DD
DD
DD
-0.3V
-0.3V (Negative current injection)
+0.3V (Positive current injection)
DIO_MIN
≤ 3.6 V
≤ 2.7 V
≤ 3.6 V
≤ 2.7 V
)/|I
IC
K20 Sub-Family Data Sheet, Rev. 1, 6/2012.
AIO_MAX
|. Select the larger of these two calculated resistances.
(=V
DIO_MIN
SS
-0.3V) is observed, then there is no need to provide current limiting resistors at
General Business Information
(=V
SS
-V
and V
DD
IN
+0.3V) is observed, then there is no need to provide current limiting
)/|I
IC
DD
|.
Preliminary
AIO_MIN
through ESD protection diodes. If V
SS
through a ESD protection diode. There is no diode connection
-V
IN
)/|I
IC
0.75 × V
0.06 × V
V
0.7 × V
|. The positive injection current limiting resistor is
POR_VBAT
1.71
1.71
–0.1
–0.1
1.71
Min.
-25
1.2
—
—
—
—
-5
-5
DD
DD
DD
0.35 × V
0.3 × V
Max.
+25
3.6
3.6
0.1
0.1
3.6
+5
—
—
—
—
—
—
—
—
IN
DD
DD
is greater than V
Unit
mA
mA
mA
V
V
V
V
V
V
V
V
V
V
V
V
AIO_MIN
Notes
General
1
3
11