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

• ATA6561: Pin 5 is the VIO pin and should be

connected to the microcontroller supply voltage.

This allows direct interfacing to microcontrollers

with supply voltages down to 3V and adjusts the

signal levels of the TXD, RXD, and STBY pins to

the I/O levels of the microcontroller. The I/O ports

are supplied by the VIO pin.

1.0

FUNCTIONAL DESCRIPTION

The ATA6560/1 is a stand-alone, high-speed CAN

transceiver, compliant with the ISO 11898-2 and

ISO 11898-5 standards. It provides a very low current

consumption in Standby mode and wake-up capability

via the CAN bus. There are two versions available, only

differing in the function of pin 5:

• ATA6560: Pin 5 is the control input for Silent mode

NSIL, allowing the ATA6560 to only receive data

and not send data via the bus. The output driver

stage is disabled. The VIO line and the VCC line

are internally connected; this sets the signal levels

of the TXD, RXD, STBY, and NSIL pins to levels

compatible with 5V microcontrollers.

1.1

Operating Modes

The ATA6561 supports three operating modes: Unpow-

ered, Standby, and Normal. The ATA6560 has an addi-

tional Silent mode. These modes can be selected via

the STBY and NSIL pin. See Figure 1-1 and Table 1-1

for a description of the operating modes.

FIGURE 1-1:

OPERATING MODES

ATA6560

ATA6561

VCC < V_uvd(VCC)or

VIO < V_uvd(VIO)

VCC < V_uvd(VCC)or

VIO < V_uvd(VIO)

VCC < V_uvd(VCC)

Unpowered

Mode

Unpowered

Mode

VCC < V_uvd(VCC)or

VCC > V_uvd(VCC)and

VCC < V_uvd(VCC)

VCC > V_uvd(VCC)

STBY = 1

VIO < V_uvd(VIO)

VIO > V_uvd(VIO)

STBY = 1

STBY = 0 and

(NSIL = 0 or

TXD = 0)

Standby

Mode

Standby

Mode

STBY = 0 and

NSIL = 1 and

STBY = 0 and

TXD = 0

STBY = 0 and

TXD = 1 and

Error = 0

NSIL = 1 and

TXD = 1 and

Error = 0

Error = 0 and

TXD = 1

ꢀꢁꢂ

Silent

Mode

Normal

Mode

Silent

Mode

Normal

Mode

NSIL = 0 or

Error = 1

Note 1: The Silent mode is externally not accessible.

2: For the ATA6561, NSIL is internally set to “1”.

TABLE 1-1:

Mode

OPERATING MODES

STBY

Inputs

NSIL

Outputs

TXD

CAN Driver

RXD

Unpowered

Standby

X⁽³⁾

Recessive

Dominant

Recessive

Active⁽⁴⁾

Active⁽¹⁾

LOW

HIGH

LOW

Silent (only for ATA6560)

Normal

LOW

HIGH⁽²⁾

LOW

HIGH

Note 1: LOW if the CAN bus is dominant, and HIGH if the CAN bus is recessive.

2: Internally pulled up if not bonded out.

3: Irrelevant.

4: Reflects the bus only for wake-up.

DS20005991B-page 4

 2018-2019 Microchip Technology Inc.

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