PRT2011CVL5A datasheet(22/112 Pages) NXP

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i.MX RT1064 Crossover Processors Data Sheet for Consumer Products, Rev. 2, 08/2020

NXP Semiconductors

Electrical Characteristics

4.1.4

External clock sources

Each i.MX RT1064 processor has two external input system clocks: a low frequency (RTC_XTALI) and

a high frequency (XTALI).

The RTC_XTALI is used for low-frequency functions. It supplies the clock for wake-up circuit,

power-down real time clock operation, and slow system and watch-dog counters. The clock input can be

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.

Table 11 shows the interface frequency requirements.

A/D converter

VDDA_ADC_3P3

—

3.0

3.3

3.6

VDDA_ADC_3P3 must be

powered even if the ADC is not

used.

VDDA_ADC_3P3 cannot be

powered when the other SoC

supplies (except VDD_SNVS_IN)

are off.

Temperature Operating Ranges

Junction

temperature

Standard

Commercial

0—

oC See the application note, i.MX

RT1064 Product Lifetime Usage

Estimates for information on

product lifetime (power-on years)

for this processor.

1 Applying the maximum voltage results in maximum power consumption and heat generation. NXP recommends a voltage set

point = (Vmin + the supply tolerance). This result in an optimized power/speed ratio.

2 Applying the maximum voltage results in shorten lifetime. 3.6 V usage limited to < 1% of the use profile. Reset of profile limited

to below 3.49 V.

3 In setting VDD_SNVS_IN voltage with regards to Charging Currents and RTC, refer to the i.MX RT1064 Hardware

Development Guide (IMXRT1064HDG).

Table 11. External input clock frequency

Parameter Description

Symbol

Min

Typ

Max

Unit

RTC_XTALI Oscillator1,2

1 External oscillator or a crystal with internal oscillator amplifier.

2 The required frequency stability of this clock source is application dependent. For recommendations, see the Hardware

Development Guide for i.MX RT1064 Crossover Processors (IMXRT1064HDG).

fckil

—

32.7683/32.0

3 Recommended nominal frequency 32.768 kHz.

—kHz

XTALI Oscillator2,4

4 External oscillator or a fundamental frequency crystal with internal oscillator amplifier.

fxtal

—24

—

MHz

Table 10. Operating ranges (continued)

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