STCOM10 datasheet(48/58 Pages) STMICROELECTRONICS

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Electrical characteristics

STCOM

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DocID028515 Rev 1

Table 17. Supply characteristics - QFS

Symbol

Parameter

Conditions

Min. Typ. Max. Unit

I(DVDD_1V2_QFS)

QFS power consumption from 1.2 V

power supply

Master clock = 24 MHz see(1)

5.1

I(DVDD_3V3_QFS)

QFS power consumption from 3.3 V

power supply

Master clock = 24 MHz see(1)

1.1

1. The test is performed with the following enabled digital blocks: 2 x GPT, 2 x SPI, 2 x USART, IPC, DMA, 2 x I2C, AES,

TRNG. The value is calculated by measuring the difference in the supply current with and without QFS enabled and running.

Table 18. 24 MHz oscillator

Symbol

Parameter

Conditions

Min. Typ. Max. Unit

f(MCLK)

Crystal oscillator frequency

MHz

External quartz crystal

Shunt capacitance

3.5

ESR

External quartz crystal ESR value

See(1)



MCLK_IN , MCLK_OUT load

capacitance

See(1)

1. Guaranteed by design, not tested in production.

Table 19. 32 kHz oscillator

Symbol

Parameter

Conditions

Min.

Typ.

Max. Unit

f(OSC32)

Crystal oscillator frequency

32.768

kHz

External quartz crystal

Shunt capacitance

0.9

ESR

External quartz crystal ESR value See(1)



External quartz crystal load

capacitance

See(1)

12.5

1. Guaranteed by design, not tested in production.

Table 20. Digital supply characteristics - I/O

Symbol

Parameter

Conditions

Min. Typ. Max. Unit

I(DVDD_3V3_IO)

3.3 V I/O digital

supply current

8 GPIO toggling at 0.5 MHz with Cext ~= 50 pF see(1)

23.0

I(DVDD_3V3_IO)

3.3 V I/O digital

supply current

8 GPIO toggling at 1 MHz with Cext ~= 50 pF see(1)

24.9

I(DVDD_3V3_IO)

3.3 V I/O digital

supply current

8 GPIO toggling at 8 MHz with Cext ~= 50 pF see(1)

49.4

1. The tests are performed with the following enabled digital blocks: 2 x GPT, 2 x SPI, 2 x USART, IPC, DMA, 2 x I2C, AES,

TRNG, QFS. Cortex™ frequency equals to 96 MHz and Cortex™ fetching by RAM. The values are calculated by measuring

the difference in the supply current with and without 8 GPIOs enabled and toggling at the given frequency.

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