STW8019 datasheet(53/66 Pages) STMICROELECTRONICS

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Electrical characteristics

STw8009/STw8019

52/65

7.3

Electrical and timing characteristics

Unless otherwise specified: TA=+25°C, all voltages are referenced to GND.

)

Table 25.

2 wire serial MPU control interface timing (

Figure 20)

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

fSCL

Clock Frequency

400

kHz

tBUF

Bus free time

1300

tHD_STA

Start condition hold time

600

SDA & SCLK fall time

300

tLOW

SCLK pulse width low

1300

SDA & SCLK rise time

300

tHIGH

SCLK pulse width high

600

tHD_DAT

Data input hold time

tSU_DAT

Data input set up time

100

tSU_STA

Start condition set up

time

600

tSU_STO

Stop condition set up

time

600

Table 26.

Digital I/O interface

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

VIL

Input Low voltage

All digital inputs

0.2*VddIO

VIH

Input High voltage

All digital inputs

0.7*VddIO

VOL

Output Low level

All digital outputs

0.1*VddIO

VOH

Output High level

All digital outputs

0.8*VddIO

IIL

Input Low current

All digital inputs /

0V < Vin <

VIL

-10

µA

IIH

Input High current

All digital inputs /

VCCIO < Vin <

VIH

-10

µA

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