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MK22DX256VLF5 Datasheet(PDF) 11 Page - Freescale Semiconductor, Inc

Part # MK22DX256VLF5
Description  K22 Sub-Family Data Sheet
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MK22DX256VLF5 Datasheet(HTML) 11 Page - Freescale Semiconductor, Inc

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5.2.1 Voltage and current operating requirements
Table 1. Voltage and current operating requirements
Symbol
Description
Min.
Max.
Unit
Notes
VDD
Supply voltage
1.71
3.6
V
VDDA
Analog supply voltage
1.71
3.6
V
VDD – VDDA VDD-to-VDDA differential voltage
–0.1
0.1
V
VSS – VSSA VSS-to-VSSA differential voltage
–0.1
0.1
V
VBAT
RTC battery supply voltage
1.71
3.6
V
VIH
Input high voltage
• 2.7 V ≤ VDD ≤ 3.6 V
• 1.7 V ≤ VDD ≤ 2.7 V
0.7 × VDD
0.75 × VDD
V
V
VIL
Input low voltage
• 2.7 V ≤ VDD ≤ 3.6 V
• 1.7 V ≤ VDD ≤ 2.7 V
0.35 × VDD
0.3 × VDD
V
V
VHYS
Input hysteresis
0.06 × VDD
V
IICIO
I/O pin DC injection current — single pin
• VIN < VSS-0.3V (Negative current injection)
• VIN > VDD+0.3V (Positive current injection)
-3
+3
mA
1
IICcont
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
VRAM
VDD voltage required to retain RAM
1.2
V
VRFVBAT
VBAT voltage required to retain the VBAT register file
VPOR_VBAT
V
1. All analog pins are internally clamped to VSS and VDD through ESD protection diodes. If VIN is greater than VAIO_MIN
(=VSS-0.3V) and VIN is less than VAIO_MAX(=VDD+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=(VAIO_MIN-VIN)/|IIC|. The positive injection current limiting resistor is
calcualted as R=(VIN-VAIO_MAX)/|IIC|. Select the larger of these two calculated resistances.
5.2.2 LVD and POR operating requirements
Table 2. VDD supply LVD and POR operating requirements
Symbol
Description
Min.
Typ.
Max.
Unit
Notes
VPOR
Falling VDD POR detect voltage
0.8
1.1
1.5
V
Table continues on the next page...
General
K22 Sub-Family Data Sheet Data Sheet, Rev. 3, 08/2012.
Freescale Semiconductor, Inc.
11


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