Electrical characteristics

ST8500

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DocID031029 Rev 3

Table 13. Digital supply characteristics - Cortex™-M4

Symbol

Parameter

Min. Typ. Max. Unit

I(DVDD_1V1)

1.1 V digital supply current

Cortex™ frequency = 50 MHz

-

20

-

mA

I(DVDD_1V1)

1.1 V digital supply current

Cortex™ frequency = 100 MHz

-

32

-

mA

I(DVDD_1V1)

1.1 V digital supply current

Cortex™ frequency = 200 MHz

-

38

-

mA

1. The tests are performed with the following enabled blocks: 1 x GPT, 1 x SPI, 1 x USART, IPC, AES, TRNG, ROSC.

Table 14. Digital supply characteristics - low power modes

Symbol

Parameter

Min.

Typ. Max. Unit

I(DVDD_1V1) 1.1 V digital supply current

Cortex™ in SLOW, clock fed by 25 MHz

XOSC

-9-

mA

I(DVDD_1V1) 1.1 V digital supply current

Cortex™ in DOZE or LOW-POWER,

clock fed by ROSC

-7.5

-

mA

I(DVDD_1V1) 1.1 V digital supply current

Cortex™ in LOW-POWER mode, clock

fed by ROSC, AFE disabled

-7.5

-

mA

I(DVDD_1V1) 1.1 V digital supply current

Cortex™ in LOW-POWER mode, clock

fed by ROSC, external clock sources

disabled

-7.5

-

mA

I(DVDD_1V1) 1.1 V digital supply current

Cortex™ in LOW-POWER mode, clock

fed by ROSC, all digital blocks disabled

but Cortex™

-7.5

-

mA

1. The tests are performed with the following enabled blocks: 1 x GPT, 1 x SPI, 1 x USART, IPC, AES, TRNG, ROSC.

Table 15. Supply characteristics - oscillator and clock

Symbol

Parameter

Conditions

Min. Typ. Max. Unit

I(DVDD_2V5_MCLK)

FS current consumption from

2.5 V power supply

Master clock - 25 MHz

-

1.8

2.5

mA

I(DVDD_1V1)

FS current consumption from

1.1 V power supply

Master clock - 25 MHz

-

3.5

5

mA

I(DVDD_2V5_MCLK)

XOSC current consumption

from 2.5 V power supply

Master clock - 25 MHz

-

0.5

1

mA

I(DVDD_1V1)

ROSC current consumption

from 1V1 power supply

Master clock - 25 MHz

-

0.15

1.5

mA