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TMC8461

EtherCAT Slave Controller with Latency free advanced I/O peripherals

TMC8461 is a EtherCAT slave controller IC with integrated, jitter-free realtime motion-control peripherals.

TMC846x are the first EtherCAT slave controller ICs to incorporate PWM and Step/Dir I/O peripherals that do not require routing through the firmware of an application processor, eliminating latency for applications requiring real-time response. The TMC846x extends the feature set of the core EtherCAT technology with a broad array of peripherals and features: an integrated smart peripherals block accessible from an MCU or EtherCAT master and, in addition to a PWM unit and Step/Dir interface, an SPI master and encoder interface that can be directly mapped to the PDO (Process Data Object) by the memory manager. This unique SPI interface enables latency-free read from an ADC or write to a DAC.

The ICs includes a standalone mode that enables direct mapping of integrated peripherals to bus registers, while in parallel an external MCU can perform higher layer protocol operations. To enable wide interoperability, the TMC8461 communication hardware has been verified as 100% compatible with the existing Beckhoff EtherCAT Slave controller through extensive interoperability testing.

Technical Data

Technical Data:

Product:

TMC8461

TMC8462

Supply Voltage:

3,3V

3,3V

Host Interface:

2x MII

2x PHY

FMMUs:

8 8

Syncmanager:

8 8

Process Data RAM:

16k 16k

Distributed Clocks

64bit 64bit

SPI Process Data Interface

30Mbit/s 30Mbit/s

Clock Output

16/25MHz 16/25MHz

SPI Master Interface:

X

X

IIC Interface:

X

X

ABN Encoder Input:

differential

differential

Step/Direction Outputs:

3

3

PWM Outputs:

4

4

DAC Outputs:

1

1

Multi Function I/Os:

24

24

100mA High Voltage I/Os:

8

8

Package:

LGA144

10x10mm

0,8mm Pitch

LGA121

9x9mm

0,75mm Pitch

Order code:

TMC8461-BA

TMC8482-BA

Downloads:

TMC8461 datasheet

TMC8462 datasheet

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