IMX93CEC datasheet(21/126 Pages) NXP

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Electrical characteristics

i.MX 93 Application Processors Data Sheet for Commercial Products, Rev. 3, 12/2023

NXP Semiconductors

4.1.5

Maximum frequency of main modules

Table 14 provides the maximum frequency of main modules in the i.MX 93 of processors.

4.1.6

Clock sources

4.1.6.1

External clock sources

The i.MX 93 processor is designed to function with quartz crystals to generate the frequencies necessary

for operation. 24 MHz for the main clock source and 32.768 kHz for the real time clock. It is possible to

inject frequencies into the input pins of the oscillators (XTALI and RTC_XTALI) if the frequency

precision and jitter precision is sufficient.

The XTAL input is used to synthesize all of the clocks in the system with the RTC_XTAL input

contribution to time keeping and low frequency operations.

Table 15 shows the interface frequency requirements.

Table 16 shows the maximum frequency of external clock.

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 VDD_ANAx_1P8 refers to VDD_ANA0_1P8, VDD_ANA1_1P8, and VDD_ANAVDET_1P8.

3 Tj minimum temperature supported at startup where Tj = Ta.

Table 14. Maximum frequency of main modules1

1 For more detailed information about clock, see Chapter Clock Controller Module (CCM) of i.MX 93 Applications Processor

Reference Manual.

Main modules

Frequency

(Low Drive mode)

Frequency

(Nominal mode)

Frequency

(Overdrive mode)

EdgeLock® Secure Enclave

133 MHz

200 MHz

250 MHz

Cortex®-M33 core

133 MHz

200 MHz

250 MHz

Cortex®-A55 cores

0.9 GHz

1.4 GHz

1.7 GHz

DRAM

933 MHz

1400 MHz

1866 MHz

NPU

500 MHz

800 MHz

1000 MHz

Table 15. 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.

fckil

—

32.7683

3 Recommended nominal frequency is 32.768 kHz.

—kHz

XTALI Oscillator2

fxtal

—24

—

MHz

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