AS8650B datasheet(17/47 Pages) AMSCO

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AS8650B

Datasheet - Electrical Character i s t ics

6.6.1 System Specification and Timings

Table 16. System Timing Parameters

Symbol

Parameter

Conditions

Min

Typ

Max

Units

Mode Transition Related Timing

TPOST

Power-up to Standby mode

Reset time included,

Start-up watchdog not included

TSTNO

Standby to Normal mode

TSLST

Sleep to Standby mode

Reset time included

Wake-up Timing

Tdom(wake)

Minimum dominant pulse for CAN

wake-up detection (remote wake)

5µs

Trec(wake)

Minimum recessive pulse for CAN

wake-up detection (remote wake)

5µs

TL_wake

Time between edge on WAKE pin to

local wake detection

µs

TLW_filter

Time between edge on WAKE pin to

WAKE_LOCAL signal

(Filter on WAKE pin)

0.75

µs

TR_wake

Remote wake detection time from the

valid pattern detection

µs

TINTN

INTN pin high time

7µs

V_LWUTH

Local WAKE threshold input

Local Failure Related Timing

TTxDC(dom)

TxD dominant timeout period

600

1000

1400

µs

TBUSC(dom)

BUS dominant clamping timeout period

600

1000

1400

µs

Watchdog Timing & Timeouts

TWD(init)

Start-up Watchdog timeout

(initialization time)

300

Twd_trig

Window watchdog Trigger window

Twwd_period is defined in

WWD register

0.375

0.5

0.625

Twwd_period

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