ST25R3916 datasheet(145/157 Pages) STMICROELECTRONICS

145 / 157 page

DS12484 Rev 4

145/157

ST25R3916/7

Electrical characteristics

156

5.6

I2C interface characteristics

Timing according to I2C protocol. Drivers for up to 3.4 MHz operation.

Transition from 100 kHz / 400 kHz / 1 MHz mode to 3.4 MHz mode (High speed mode) is

done via Master code 00001XXX, as described in the I2C specification.

Table 126. AC measurement conditions

Symbol

Parameter

Min

Max

Unit

CBUS

Load capacitance

100

SCL input rise/fall time, SDA input fall time

Table 127. AC measurement conditions - I2C configuration

Mode

Rate

Setting

100 kHz

i2c_thd = 00b, io_drv_lvl = 1b

400 kHz

i2c_thd = 01b, io_drvl_lvl = 1b

F+

1000 kHz

i2c_thd = 11b, Io_drv_lvl = 1b

3400 kHz

i2c_thd = 11b, io_drv_lvl = 1b

Table 128. Input parameters(1)

1. Evaluated by characterization, not tested in production.

Symbol

Parameter

Conditions

Min

Max

Unit

CIN

Input capacitance (SDA)

Input capacitance (SCL)

Table 129. DC characteristics(1)

1. Evaluated by characterization, not tested in production.

Symbol

Parameter

Conditions (in addition to those

in Table 126 and Table 127)

Min

Max

Unit

ILI

Input leakage

current (SCL, SDA)

VIN = VSS or VCC, device in

Standby mode

-± 10

µA

ILO

Output leakage

current

SDA in Hi-Z, external voltage

applied on SDA: VSS or VCC

-± 10

VIL

Input low voltage

(SCL, SDA)

-0.4

0.2 VDD_IO

VIH

Input high voltage

(SCL, SDA)

0.8 VDD_IO VDD_IO + 0.4

VOL

Output low voltage

VDD_IO = 1.65 V, IOL = 1.0 mA

0.1 VDD_IO

VDD_IO = 2.4 V, IOL = 2.1 mA

0.1 VDD_IO

VDD_IO = 3.3 V, IOL = 8 mA

0.1 VDD_IO

VDD_IO = 5.5 V, IOL = 8 mA

0.1 VDD_IO

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