Symbol

Parameter

Condition

Min.

Typ.

Max.

Unit

VOH

Output high voltage

IOH = −1 mA

0.75 × VPS

-

VPS

V

VOL

Output low voltage

(VPS = 1.8 V±10%)

IOL = 500 µA

0

-

0.15 × VPS

V

Output low voltage

(VPS = 3.3 V±10%)

IOL = 1 mA

0

-

0.15 × VPS

POR

Power on reset voltage(1)

-

-

1.45

1.61

V

PDR

Pull-down resistor

-

-

10

-

kΩ

PUR

Pull-up resistor

-

-

100

-

kΩ

1. VPS voltage from which the device starts to run or VPS voltage below which the device starts to switch off during a

shutdown.

4.3

Overshoot

The TPM has been tested in accordance with JEDEC standard JESD78D.

•

Tolerated overshoot: 1.5 ×VPS

•

Maximum time during overshoot: 10 ms.

4.4

Performance and power consumption characteristics

The values provided in the table below were measured at TA = −40 to 105 °C (for the 3.3 V voltage range only)

and TA = −25 to 85 °C (for the 1.8 V and 3.3 V voltage ranges).

Table 7. Power-on and warm reset timing characteristics

Symbol

Parameter

Condition

Min. Typ. Max. Unit

tWL

RESET pin low state pulse width for reset

-

1

-

-

ms

tINIT

Minimum time for TPM_ACCESS_x registers to contain valid data from

TPM reset

-

-

-

500

µs

tCMD

Time required before sending first TPM command from TPM reset

-

-

-

50

ms

tPOR_RST POR to SPI_RST time

CLOAD = 30 pF

-

200

-

µs

tInit_stb

Wakeup time from Standby

-

-

-

150

µs

Table 8. Power consumption characteristics

The values provided in the table below were measured at TA = 25 °C.

Symbol

Parameter

Typ.

Max.

Unit

ICC Run

Normal TPM operation

-

17.5

mA

ICC Idle

Supply current when not processing any commands.

4

-

mA

ICC Standby

Supply current when the device is in Deep Sleep mode(1).

60

-

µA

1. Activated by default. See Proprietary commands and Technical features.

ST33TPHF2XSPI

Overshoot

DS14186 - Rev 1

page 12/35