ST8034HN datasheet(12/31 Pages) STMICROELECTRONICS

12 / 31 page

Electrical characteristics

ST8034HN, ST8034HC

12/31

DocID024511 Rev 2

VCC(SHDN)

VCC output voltage in

shutdown mode

No load

-0.1

0.1

ICC = 1 mA

-0.1

0.3

ICC(SHDN)

VCC output current in

shutdown mode

VCC connected to GND

-1

Device supply voltages monitoring

VTH

Falling supply voltage

threshold

VDD pin

2.3

2.4

2.5

VDDP pin (VCC = 5 V)

3.0

4.1

4.4

VDDP pin (VCC = 3 V or 1.8 V)

2.3

2.4

2.5

PORADJ pin

1.20

1.24

1.29

VHYS

Hysteresis on supply

voltage threshold

VDD pin

100

150

VDDP pin (VCC = 5 V)

100

200

350

VDDP pin (VCC = 3 V or 1.8 V)

100

150

PORADJ pin

II(PORADJ) Input current, PORADJ pin

-1

A

Power-on or undervoltage

reset pulse width (minimum)

5.1

10.2

1. TA = 25 °C, VDD = 3.3 V, VDDP = 5 V, VDD(INTF) = 3.3 V, fXTAL = 10 MHz, unless otherwise noted.

2. The device can operate at VDD supply voltage up to 5.5 V, however the specified parameters (mainly related to current

consumption) are guaranteed in the basic VDD range 2.7 to 3.6 V.

3. The device can operate at VDD(INTF) supply voltage up to 5.5 V, however the specified parameters (mainly related to current

consumption and input currents) are guaranteed in the basic VDD(INTF) range 1.6 to 3.6 V.

4. Two low ESR (< 350 m

) ceramic capacitors for VCC decoupling recommended: 100 nF ± 20% (up to 330 nF ± 20%) close

to the ST8034 and 100 nF ± 20% (up to 330 nF ± 20%) close to the card.

5. These current pulses are filtered by the decoupling capacitors on the VCC pin, therefore for the LDO just the mean value

matters.

Table 6. Supply voltages (continued)

Symbol

Parameter

Test conditions(1)

Min.

Typ.

Max.

Unit

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