DocID031029 Rev 3

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ST8500

Electrical characteristics

37

5.3

Operating conditions

T(AMB) = -40 to +105 °C, T(J) < 125 °C unless otherwise specified.

Power supply characteristics

Table 11. Analog supply characteristics

Symbol

Parameter

Conditions

Min. Typ. Max. Unit

V(AVDD_2V5)

2.5 V regulator output

-

2.3

2.5

2.75

V

V(DVDD_3V3_REG)

2.5 V regulator input voltage

-

3

3.3

3.6

V

I(DVDD_3V3_REG)

2.5 V regulator quiescent current

-

-

-

1.5

mA

V(AVDD_2V5_AFE)_TH

2.5 V PLC AFE supply voltage turn-on

threshold

--

2.1

2.25

V

V(AVDD_2V5_AFE)_TL

2.5 V PLC AFE supply voltage turn-off

threshold

-1.8

1.9

-

V

V(AVDD_2V5_AFE)_HYST 2.5 V PLC AFE supply voltage hysteresis

-

-

200

-

mV

I(AVDD_2V5_AFE)_RX

2.5 V PLC AFE supply current in Rx mode -

-

6.5

7.5

mA

I(AVDD_2V5_AFE)_TX

2.5 V PLC AFE (PGA and DAC) supply

current in Tx mode

DAC full scale

current = 10 mA

Fclk: 20 MHz

-10

-

mA

I(AVDD_3V3_AFE)_RX

3.3 V PLC AFE supply current in Rx mode -

-

0.03

0.1

mA

I(AVDD_3V3_AFE)_TX

3.3 V PLC AFE supply current in Tx mode

TXDRV_OUT

pins with no load

-3

5

mA

V(DVDD_3V3_IO)

Digital I/O supply voltage

-

3.0

3.3

3.6

V

V(DVDD_3V3_IO)_TH

Digital I/O supply voltage turn-on threshold -

-

2.7

2.85

V

V(DVDD_3V3_IO)_TL

Digital I/O supply voltage turn-off threshold -

2.4

2.5

-

V

V(DVDD_3V3_IO)_HYST Digital I/O supply voltage hysteresis

-

-

200

-

mV

V(DVDD_1V1)

1.1 digital block supply

-

1.05

1.1

1.21

V

V(DVDD_1V1)_TH

1.1 supply voltage turn-on threshold

-

-

0.93 1.03

V

V(DVDD_1V1)_TL

1.1 supply voltage turn-off threshold

-

0.65 0.73

-

V

V(DVDD_1V1)_HYST

1.1 supply voltage hysteresis

-

-

200

-

mV

Table 12. Digital supply characteristics - RTE

Symbol

Parameter

Min.

Typ.

Max. Unit

I(DVDD_1V1)

1.1 V digital supply current

RTE frequency = 50 MHz

-

3

-

mA

I(DVDD_1V1)

1.1 V digital supply current

RTE frequency = 120 MHz

-

36

-

mA

I(DVDD_1V1)

1.1 V digital supply current

RTE frequency = 250 MHz

-

60

-

mA

I(DVDD_1V1)

1.1 V digital supply current

RTE frequency = 400 MHz

-

128

-

mA

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

Cortex™ frequency equals to 100 MHz. The value is calculated by measuring the difference in the supply current with and

without RTE enabled and running.