Datasheet > ATA6561

ATA6561

更新时间： 2023-12-06 20:03:06

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
28页	712K
描述
The Microchip ATATA6561 is a high-speed CAN FD ready CAN transceiver that provides an interface be

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ATA6561 数据手册

ATA6560/1

FIGURE 1-4:

RELEASE OF TRANSMISSION AFTER OVERTEMPERATURE CONDITION

Failure

Overtemp

Overtemperature

TXD

V_9,O

GND

BUS V_DIFF

(CANH-CANL)

RXD

V_9,O

GND

1.2.6

SHORT-CIRCUIT PROTECTION OF

THE BUS PINS

The CANH and CANL bus outputs are short-circuit

protected, either against GND or a positive supply

voltage.

current-limiting circuit protects the

transceiver against damage. If the device heats up

due to a continuous short on CANH or CANL, the

internal overtemperature protection switches the bus

transmitter off.

1.2.7

RXD RECESSIVE CLAMPING

This fail-safe feature prevents the controller from

sending data on the bus if its RXD line is clamped to

high (for example, recessive). That is, if the RXD pin

cannot signal a dominant bus condition (for example,

because it is shorted to VCC), the transmitter within the

ATA6560/1 is disabled to avoid possible data collisions

on the bus. In Normal and Silent modes (only for the

ATA6560), the device permanently compares the state

of the HSC to the state of the RXD pin.

If the HSC indicates a dominant bus state for more than

t_{RC_det}, without the RXD pin doing the same, a

recessive clamping situation is detected and the device

is forced into the Silent mode. This Fail-Safe mode is

released by entering either the Standby or the

Unpowered mode or if the RXD pin is showing a

dominant (for example, low) level again.

 2018-2019 Microchip Technology Inc.

DS20005991B-page 7

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