ATA6560/1
High-Speed CAN Transceiver with Standby Mode
CAN FD Ready
Features
• Fully ISO 11898-2, ISO 11898-5, and SAE J2284
Compliant
• CAN FD Ready
• Communication Speed up to 5 Mbps
• Low Electromagnetic Emission (EME) and High
Electromagnetic Immunity (EMI)
• Differential Receiver with Wide Common-Mode
Range
• ATA6560: Silent Mode (Receive Only)
• Remote Wake-Up Capability via CAN Bus
• Functional Behavior Predictable under All Supply
Conditions
• Transceiver Disengages from the Bus when Not
Powered Up
• RXD Recessive Clamping Detection
• High Electrostatic Discharge (ESD) Handling
Capability on the Bus Pins
• Bus Pins Protected Against Transients in
Automotive Environments
• Transmit Data (TXD) Dominant Time-Out
Function
• Undervoltage Detection on VCC and VIO Pins
• CANH/CANL Short-Circuit and Overtemperature
Protected
• Qualified According to AEC-Q100: Only
ATA6560-GAQW, ATA6560-GBQW,
ATA6561-GAQW, and ATA6561-GBQW
• Packages: SOIC8, VDFN8 with Wettable Flanks
(Moisture Sensitivity Level 1)
General Description
The ATA6560/1 is a high-speed CAN transceiver that
provides an interface between a Controller Area Net-
work (CAN) protocol controller and the physical
two-wire CAN bus. The transceiver is designed for
high-speed (up to 5 Mbps) CAN applications in the
automotive industry, providing differential transmit and
receive capability to (a microcontroller with) a CAN
protocol controller.
It offers improved Electromagnetic Compatibility (EMC)
and ESD performance, as well as features such as:
• Ideal passive behavior to the CAN bus when the
supply voltage is off
• Direct interfacing to microcontrollers with supply
voltages from 3V to 5V (ATA6561)
Three operating modes, together with the dedicated
fail-safe features, make the ATA6560/1 an excellent
choice for all types of high-speed CAN networks,
especially in nodes requiring a Low-Power mode with
wake-up capability via the CAN bus.
Package Types
ATA6560
SOIC
TXD 1
GND 2
VCC 3
RXD 4
8 STBY
7 CANH
6 CANL
5 NSIL
TXD 1
GND 2
VCC 3
RXD 4
ATA6561
SOIC
8 STBY
7 CANH
6 CANL
5 VIO
Applications
Classical CAN and CAN FD networks in the following
applications:
•
•
•
•
•
Automotive
Industrial
Aerospace
Medical
Consumer
ATA6560
3 x 3 VDFN* with
wettable flanks
TXD
GND
VCC
RXD
ATA6561
3 x 3 VDFN* with
wettable flanks
TXD
GND
VCC
RXD
1
2
3
4
8
7
6
5
STBY
CANH
CANL
NSIL
1
2
3
4
8
7
6
5
STBY
CANH
CANL
VIO
*Includes Exposed Thermal Pad (EP); see
Table 1-2.
2018 Microchip Technology Inc.
DS20005991A-page 1
ATA6560/1
ATA6560/1 FAMILY MEMBERS
Device
ATA6560-GAQW
ATA6560-GBQW
ATA6561-GAQW
X
VIO Pin
NSIL Pin
X
X
X
X
VDFN8
SOIC8
X
AEC-Q100
Qualified
X
X
X
Description
Standby mode and Silent mode
Standby mode and Silent mode
Standby mode, VIO - pin for
compatibility with 3.3V and 5V
microcontroller
Standby mode, VIO - pin for
compatibility with 3.3V and 5V
microcontroller
Standby mode and Silent mode
Standby mode and Silent mode
X
Standby mode, VIO - pin for
compatibility with 3.3V and 5V
microcontroller
Standby mode, VIO - pin for
compatibility with 3.3V and 5V
microcontroller
ATA6561-GBQW
X
X
X
ATA6560-GAQW-N
ATA6560-GBQW-N
ATA6561-GAQW-N
X
X
X
X
X
ATA6561-GBQW-N
X
X
Note:
For ordering information, see the
Product Identification System
section.
DS20005991A-page 2
2018 Microchip Technology Inc.
ATA6560/1
Functional Block Diagram
VIO
5
(1)
VCC
3
ATA6560/1
Temperature
Protection
VIO
(1)
Slope
Control
and
Driver
7
CANH
1
VIO
(1)
TXD
Time-Out
Timer
TXD
6
CANL
STBY
8
VIO
(1)
Control
Unit
5
(1)
NSIL
HSC
(2)
VIO
(1)
RXD
4
MUX
Wake-Up
Filter
WUC
(3)
2
GND
Note 1:
Pin 5: ATA6561: VIO
ATA6560: NSIL (the VIO line and the VCC line are internally connected)
2:
HSC: High-Speed Comparator
3:
Wake-Up Comparator
2018 Microchip Technology Inc.
DS20005991A-page 3
ATA6560/1
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.
• 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.
1.1
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.
ATA6560
VCC < V
uvd(VCC)
or
VIO < V
uvd(VIO)
ATA6561
VCC < V
uvd(VCC)
or
VIO < V
uvd(VIO)
VCC < V
uvd(VCC)
Unpowered
Mode
VCC < V
uvd(VCC)
Unpowered
Mode
VCC < V
uvd(VCC)
STBY = 1
STBY = 0 and
(NSIL = 0 or
TXD = 0)
VCC > V
uvd(VCC)
STBY = 1
VCC < V
uvd(VCC)
or
VIO < V
uvd(VIO)
STBY = 1
STBY = 0 and
TXD = 0
VCC > V
uvd(VCC)
and
VIO > V
uvd(VIO)
STBY = 1
Standby
Mode
STBY = 0 and
NSIL = 1 and
TXD = 1 and
Error = 0
Standby
Mode
STBY = 0 and
TXD = 1 and
Error = 0
NSIL = 1 and
TXD = 1 and
Error = 0
Error = 0 and
TXD = 1
Silent
Mode
NSIL = 0 or
Error = 1
Normal
Mode
Silent
Mode
Error = 1
Normal
Mode
Note 1:
The Silent mode is externally not accessible.
2:
For the ATA6561, NSIL is internally set to “1”.
FIGURE 1-1:
Operating Modes.
TABLE 1-1:
Mode
OPERATING MODES
Inputs
STBY
X
(3)
HIGH
LOW
LOW
LOW
NSIL
X
(3)
X
(3)
LOW
HIGH
(2)
HIGH
(2)
TXD
X
(3)
X
(3)
X
(3)
LOW
HIGH
Outputs
CAN Driver
Recessive
Recessive
Recessive
Dominant
Recessive
RXD
Recessive
Active
(4)
Active
(1)
LOW
HIGH
Unpowered
Standby
Silent (only for ATA6560)
Normal
Note 1:
2:
3:
4:
LOW if the CAN bus is dominant, and HIGH if the CAN bus is recessive.
Internally pulled up if not bonded out.
Irrelevant.
Reflects the bus only for wake-up.
DS20005991A-page 4
2018 Microchip Technology Inc.
ATA6560/1
1.1.1
NORMAL MODE
A low level on the STBY pin, together with a high level on
pins TXD and NSIL, selects the Normal mode. In this
mode, the transceiver can transmit and receive data via
the CANH and CANL bus lines (see the
“Functional
Block Diagram”).
The output driver stage is active and
drives data from the TXD input to the CAN bus. The
High-Speed Comparator (HSC) converts the analog data
on the bus lines into digital data, which is output to pin
RXD. The bus biasing is set to V
VCC
/2, and the
undervoltage monitoring of VCC is active.
The slope of the output signals on the bus lines is
controlled and optimized to ensure the lowest possible
EME.
To switch the device to a normal operating mode, set
the STBY pin to low and the TXD and NSIL pins (if
applicable) to high (see
Table 1-1, Figure 1-2,
and
Figure 1-3).
Both the STBY and the NSIL pins provide
a pull-up resistor to VIO, thus ensuring defined levels if
the pins are open.
The device cannot enter the Normal mode as long as
the TXD is at ground level. ATA6560 only switches to
the Normal mode when all inputs are set accordingly.
STBY
t
TXD
t
del(stby-norm)
=
47 μs max
Operation
ode
Standby
ode
Normal
ode
t
t
FIGURE 1-2:
Switching from Standby Mode to Normal Mode (NSIL = High).
STBY
t
NSIL
t
TXD
t
del(sil-norm)
=
10 μs max
Operation
ode
Silent
ode
Normal
ode
t
t
FIGURE 1-3:
Switching from Silent Mode to Normal Mode.
2018 Microchip Technology Inc.
DS20005991A-page 5
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