K32W14X datasheet(12/90 Pages) NXP

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5. All I/O pins are internally clamped to VSS and VDD_IO_

x through an ESD protection diode. If VIN is greater than

VDD_IO_x_MIN(= VSS – 0.3 V) or is less than VDD_IO_x_MAX(= VDD + 0.3 V), then there is no need to provide current

limiting resistors at the pads. If this limit cannot be observed, then a current limiting resistor is required.

6. This device does not allow pin injection current. User must ensure that VIN is kept within the Voltage Maximum Ratings.

7. Open drain outputs must be pulled to whichever supply voltage corresponds to that IO, VDD_IO_

X as appropriate.

2.2.2 HVD, LVD, and POR operating requirements

The device includes low-voltage detection (LVD) and high-voltage detection (HVD) power supervisor circuits for following

power supplies:

• VDD_IO_ABC

• VDD_CORE

• VDD_SYS

For VDD_SYS, it has Power-on-reset (POR) power supervisor circuits.

Table 10. VDD_IO_ABC supply HVD, LVD, and POR Operating Ratings

Symbol

Description

Min.

Typ.

Max.

Unit

Notes

VHVDH_IO_A

VDD_IO_ABC Rising high-voltage detect

threshold

3.730

3.810

3.890

VHVDH_HYS

_IO_ABC

VDD_IO_ABC High-voltage inhibit reset/recover

hysteresis

—

VLVDH_IO_A

VDD_IO_ABC Falling low-voltage detect

threshold - high range

2.567

2.619

2.673

VLVDH_HYS

_IO_ABC

VDD_IO_ABC Low-voltage inhibit reset/recover

hysteresis - high range

—

VLVDL_IO_A

VDD_IO_ABC Falling low-voltage detect

threshold - low range

1.618

1.651

1.684

VLVDV_HYS

_IO_ABC

VDD_IO_ABC Low-voltage inhibit reset/recover

hysteresis - low range

—

Table 11. VDD_CORE supply HVD and LVD Operating Ratings

Symbol

Description

Min.

Typ.

Max.

Unit

Notes

VHVD_CORE

VDD_CORE Rising high-voltage detect

threshold (HVD assertion)

Target VDD_CORE = 1.05 V

Target VDD_CORE = 1.1 V

Target VDD_CORE = 1.15 V (safe mode LVD)

1.230

1.257

1.285

VHVD_HYS_CORE VDD_CORE High-voltage inhibit reset/recover

hysteresis

Target VDD_CORE = 1.05 V

Target VDD_CORE = 1.1 V

Target VDD_CORE = 1.15 V (safe mode LVD)

—

Table continues on the next page...

NXP Semiconductors

General

K32W14x Product Family, Rev. 3, 12/2022

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