K64F datasheet(7/85 Pages) NXP

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2.2.1 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

VDDA

Analog supply voltage

1.71

3.6

VDD – VDDA VDD-to-VDDA differential voltage

–0.1

0.1

VSS – VSSA VSS-to-VSSA differential voltage

–0.1

0.1

VBAT

RTC battery supply voltage

1.71

3.6

VIH

Input high voltage

• 2.7 V ≤ VDD ≤ 3.6 V

• 1.7 V ≤ VDD ≤ 2.7 V

0.7 × VDD

0.75 × VDD

—

VIL

Input low voltage

• 2.7 V ≤ VDD ≤ 3.6 V

• 1.7 V ≤ VDD ≤ 2.7 V

—

0.35 × VDD

0.3 × VDD

VHYS

Input hysteresis

0.06 × VDD

—

IICDIO

Digital pin negative DC injection current — single pin

• VIN < VSS-0.3V

-5

—

IICAIO

Analog2, EXTAL, and XTAL pin DC injection current

— single pin

• VIN < VSS-0.3V (Negative current injection)

• VIN > VDD+0.3V (Positive current injection)

-5

—

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

VODPU

Open drain pullup voltage level

VDD

VRAM

VDD voltage required to retain RAM

1.2

—

VRFVBAT

VBAT voltage required to retain the VBAT register file VPOR_VBAT

—

1. All 5 V tolerant digital I/O pins are internally clamped to VSS through an ESD protection diode. There is no diode

connection to VDD. If VIN is less than VDIO_MIN, a current limiting resistor is required. If VIN greater than VDIO_MIN

(=VSS-0.3V) is observed, then there is no need to provide current limiting resistors at the pads. The negative DC

injection current limiting resistor is calculated as R=(VDIO_MIN-VIN)/|IICDIO|.

2. Analog pins are defined as pins that do not have an associated general purpose I/O port function. Additionally, EXTAL

and XTAL are analog pins.

3. All analog pins are internally clamped to VSS and VDD through ESD protection diodes. If VIN is less than VAIO_MIN or

greater than VAIO_MAX, a current limiting resistor is required. The negative DC injection current limiting resistor is

calculated as R=(VAIO_MIN-VIN)/|IICAIO|. The positive injection current limiting resistor is calculated as R=(VIN-

VAIO_MAX)/|IICAIO|. Select the larger of these two calculated resistances if the pin is exposed to positive and negative

injection currents.

4. Open drain outputs must be pulled to VDD.

General

Kinetis K64F Sub-Family Data Sheet, Rev. 7, 11/2016

NXP Semiconductors

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