S32K311NHT0MPAST datasheet(72/143 Pages) NXP

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inch. For signals with frequency greater than 63MHz, a maximum 2 inch PCB trace is assumed. For best signal integrity,

the series resistance in the transmission line should be matched closely to the selected output resistance (ROUT_*) of the

I/O pad.

2. GPIO rise/fall time specifications are derived from simulation model for the defined operating points (between 20% and

80% of VDD_HV_A/B level). Actual application rise/fall time should be extracted from IBIS model simulations with the

microcontroller models and application PCB.

3. GPIO output transition time information can be obtained from the device IBIS model. IBIS models are recommended for

system level simulations, as discrete values for I/O transition times are not representative of the I/O pad behavior when

connected to an actual transmission line load.

4. Output timing valid for maximum external load C L = 50pF (includes PCB trace, package trace, and external device input

load).

RDSON

RPCB = RDSON

PCB

External

device

MCUsee note 1

RDSON

5 in.

(4 layer FR4)

CPCB = ~3.3 pF/inch * 5 inch

CL = 8 pF

1. See IBIS models for further details.

Notes:

Figure 33. Reference Load Diagram

8 Glitch Filter

The glitch filter parameters in the following table apply to the filters of WKPU pins and TRGMUX inputs 60-63.

Table 28. Glitch Filter

Symbol

Description

Min

Typ

Max

Unit

Condition

Spec

Number

TFILT

Glitch filter max

filtered pulse

width 1,2,3

—

TUNFILT

Glitch filter min

unfiltered pulse

width 2,3,4

400

—

1. Pulses shorter than defined by the maximum value are guaranteed to be filtered (not passed).

2. An input signal pulse is defined by the duration between the input signal's crossing of a Vil/Vih threshold voltage level, and

the next crossing of the opposite level.

3. Pulses in between the max filtered and min unfiltered may or may not be passed through.

4. Pulses larger than defined by the minimum value are guaranteed to not be filtered (passed).

9 Flash memory specification

NXP Semiconductors

Glitch Filter

S32K3xx Data Sheet, Rev. 9.1, 03/2024

Data Sheet: Technical Data

Preliminary Information for S32K388

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