AS8222 datasheet(23/43 Pages) AMSCO

tên linh kiện	AS8222

Giải thích chi tiết về linh kiện	Enhanced FlexRay Standard Transceiver

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AS8222

Datasheet - Detailed Descr i p ti on

www.ams.com/eng/FlexRay/AS8222

Revision 1.0

22 - 42

7.7.3 Local Wake-Up Event

In all low-power modes, if the voltage on the WAKE pin falls below VLWUTH for longer than tLWUFilter, a local wake-up event is detected. At the

same time the biasing of the pin is switched to pull-down. As well a local wake up event is detected if the voltage on the WAKE pin rises above

VLWUTH for longer than tLWUFilter, then biasing of the pin is switched to pull-up. The pull-up and -down mechanism is activated in low- and non-

low-power modes.

7.8 Over-temperature Events

In NORMAL mode if the temperature exceeds OTTH, the transmitter is deactivated. During this condition the device will remain in NORMAL

mode.

The transmitter is activated again, if the temperature falls below OTTL.

Figure 4. Wake Input Pin Behaviour

WAKE

RxD / RxEN

INH

tLWFilter

Pull-up

Pull-down

VBAT

VIO

AS8222 bảng dữ liệu(PDF) 23 Page - ams AG