L9733 datasheet(16/34 Pages) STMICROELECTRONICS

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Electrical performance characteristics

L9733

16/34

Doc ID 11319 Rev 11

3.3

SPI characteristics and timings

Tamb= -40 to 125 °C, Vdd = 4.5 to 5.5 Vdc, Vbat = 4.5 to 18 Vdc, unless otherwise specified

Table 8.

SPI characteristics and timings

Symbol

Parameter

Conditions

Min

Typ

Max

Units

DINCin

Input capacitance

SCLKCin

DOrise

Output data (do)

rise time

50 pF from DO to Ground

See Figure 5

DOfall

Output data (do)

fall time

See Figure 5

DOa

Access time

See Figure 6

350

DOsum

Set up time

See Figure 6

DOhm

Hold time

See Figure 6

DOdis

Output data (DO)

disable time

No Capacitor on DO, See Figure 5

400

tthFilt

Filter time

All Fault bits are “Set”

s

SCLKwid

SCLK width

See Figure 5, @ fSCLK = 5.4MHz

(1)

185

SCLKlm

SCLK low time

See Figure 5, @ fSCLK = 5.4MHz

(1)

SCLKhm

SCLK high time

See Figure 5, @ fSCLK = 5.4MHz

(1)

SCLKrise

SCLK rise time

See Figure 5, @ fSCLK = 5.4MHz

(1)

SCLKfall

SCLK fall time

See Figure 5, @ fSCLK = 5.4MHz

(1)

CSrise

Channel select (CS)

rise time

See Figure 5 (1)

100

CSfall

Channel select (CS)

fall time

See Figure 5 (1)

100

CSlead

Channel select (CS)

lead time

See Figure 6 (1)

455

CSlag

Channel select (CS)

lag time

See Figure 6 (1)

DIrise

Input data (DI)

rise time

See Figure 5, @ fSCLK = 5.4MHz

(1)

DIfall

Input data (DI)

fall time

See Figure 5 @ fSCLK = 5.4MHz

(1)

DIsus

Input data (DI)

set-up time

See Figure 6, @ fSCLK = 5.4MHz

(1)

DIhs

Input data (DI)

hold time

See Figure 6, @ fSCLK = 5.4MHz

(1)

CS2SCLK

CS rise to SCLK rise

See Figure 6, @ fSCLK = 5.4MHz

(1)

300

Guaranteed by design.

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