PIMXRT516SCVJ2A datasheet(44/128 Pages) NXP

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i.MX RT1170 Crossover Processors Data Sheet for Consumer Products, Rev. 1, 05/2021

NXP Semiconductors

Electrical characteristics

connected to either external oscillator or a crystal using internal oscillator amplifier. Additionally, there is

an internal ring oscillator, which can be used instead of the RTC_XTALI if accuracy is not important.

The system clock input XTALI is used to generate the main system clock. It supplies the PLLs and other

peripherals. The system clock input can be connected to either external oscillator or a crystal using internal

oscillator amplifier.

The RTC OSC module provides the clock source for the Real-Time Clock module. The RTC OSC module,

in conjunction with an external crystal, generates a 32.768 kHz reference clock for the RTC.

Table 29. 32 kHz oscillator DC electrical specifications

Symbol

Description

Min

Typ

Max

Unit

Note

Cpara

Parasitically capacitance of RTC_XTALI

and RTC_XTALO

—1.5

2.0

—

Vpp

Peak-to-peak amplitude of oscillator

—

0.6

—

1 Proper PCB layout procedures must be followed to achieve specifications.

fosc_lo

Oscillator crystal

—

32.768

—

kHz

—

tstart

Crystal startup time

—

500

—

Vec_extal32

Externally provided input clock amplitude

0.7

—

VDD_SNVS

_ANA

2,3

2 This specification is for an externally supplied clock driven to EXTAL32 and does not apply to any other clock input. The

oscillator remains enabled and XTAL32 must be left unconnected.

3 The parameter specified is a peak-to-peak value and VIH and VIL specifications do not apply. The voltage of the applied clock

must be within the range of VSS to VDD_SNVS_ANA.

Table 30. RC oscillator with 16 MHz internal reference frequency

Symbol

Parameter

Condition

Min

Typ

Max

Unit

Clock output

Fclkout_16M

Clock frequency

—

15.1

16.9

MHz

Dynamic parameters

Tstart_16M

Start-up time

—

s

Power-down mode

IVDDA

Supply current in power-down

—

Table 31. RC oscillator with 48 MHz internal reference frequency

Symbol

Parameter

Condition

Min

Typ

Max

Unit

General

IVDDA

Analog supply current

—

350

500

A

Clock output

Fclkout

Clock frequency

—

MHz

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