Analog Devices Inc./Maxim Integrated TMCM-1076-CABLE

Overview

TMCM-1076-CABLE from TRINAMIC is a pre-assembled cable loom designed exclusively for the TMCM-1076 stepper motor driver module. It includes two purpose-built JST EH connectors: a 4-pin female motor cable and a 9-pin female power + I/O cable, enabling rapid, error-free interconnection to NEMA23/NEMA24 motors and control systems in lab automation and CNC motion applications.

For engineers reviewing the TMCM-1076-CABLE datasheet, TMCM-1076-CABLE pinout, TMCM-1076-CABLE application, or TMCM-1076-CABLE equivalent, this cable simplifies mechanical integration, eliminates custom wiring risk, ensures signal integrity for optically isolated STEP/DIR inputs and TTL UART communication, and supports reliable thermal management via correct connector mating and strain relief.

Technical Context

The TMCM-1076-CABLE implements two physically separate, mechanically keyed JST EH-series cable assemblies: one 4-conductor for bipolar stepper motor phase connections (A1/A2/B1/B2), and one 9-conductor for power (V+/GND), optically isolated digital I/O (STEP/DIR/EN/CHOP/COMM), and TTL UART (TXD/RXD). Both cables use 28 AWG stranded tinned copper conductors with PVC insulation and molded overmold strain relief.

No active circuitry or signal conditioning is present - the cable is a passive interconnect solution. Its design strictly follows TRINAMIC's mechanical interface specifications for the TMCM-1076 module, including pin assignments per Tables 4 and 5 of the Hardware Manual, and supports full functional operation at up to 45 kHz step frequency and 115.2 kbps UART baud rate.

Key Specifications

Availability

TMCM-1076-CABLE is available at Aetrix Electronics and suitable for lab automation, robotics, and factory automation applications requiring stable component supply, repeatable mechanical integration, and guaranteed compatibility with the TMCM-1076 driver module.

Supply support for TMCM-1076-CABLE includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

TRINAMIC Motion Control GmbH & Co. KG is a German semiconductor company specializing in high-performance motion control ICs and intelligent motor modules for precision industrial and automation applications.

The TMCM-1076-CABLE belongs to TRINAMIC's TMCM modular driver ecosystem and was engineered to eliminate field wiring errors, accelerate prototyping-to-production transition, and ensure signal fidelity between the TMCM-1076 and its motor/load interfaces.

FAQ

What is the exact pinout mapping of the TMCM-1076-CABLE motor connector?

The TMCM-1076-CABLE motor connector is a 4-pin JST EH female cable assembly with the following pin mapping: Pin 1 = B1 (motor phase B pin 1), Pin 2 = B2 (motor phase B pin 2), Pin 3 = A1 (motor phase A pin 1), Pin 4 = A2 (motor phase A pin 2). This matches Table 4 in the TMCM-1076 Hardware Manual and ensures correct bipolar stepper coil connection without reversal.

Does the TMCM-1076-CABLE include any active components or signal conditioning?

No, the TMCM-1076-CABLE contains no active components, resistors, capacitors, or signal conditioning circuitry. It is a fully passive interconnect solution consisting only of stranded copper conductors, PVC insulation, JST EH connectors, and molded strain relief. All signal integrity and electrical performance depend on the TMCM-1076 module and host system design.

Can the TMCM-1076-CABLE be used with stepper motors other than NEMA23/NEMA24?

The TMCM-1076-CABLE is mechanically and electrically designed for the TMCM-1076 module's standard interface - not for specific motor frame sizes. While it is commonly used with NEMA23/NEMA24 motors mounted directly to the TMCM-1076, it can connect to any bipolar stepper motor with standard A1/A2/B1/B2 winding termination, provided the motor cable length, gauge, and connector mating are compatible with the application's EMI and thermal requirements.

What is the maximum recommended step frequency supported by the TMCM-1076-CABLE when used with the TMCM-1076 module?

The TMCM-1076-CABLE supports the full 45 kHz input frequency capability of the TMCM-1076's optically isolated STEP input, as specified in Table 10 of the Hardware Manual. Its 28 AWG conductors and JST EH contact resistance (<10 mΩ) maintain signal edge integrity at this rate, assuming proper grounding, short run lengths (<1 m), and avoidance of parallel routing with noisy power lines.

Is the TMCM-1076-CABLE rated for industrial environmental conditions such as dust or vibration?

The TMCM-1076-CABLE itself has no IP rating or formal environmental certification. However, its JST EH connectors provide robust mechanical retention (≥3.5 N insertion force), and the molded strain relief resists conductor fatigue under repeated flexing. When mated correctly to the TMCM-1076 and installed per TRINAMIC's mounting guidelines, it maintains reliable operation in typical industrial environments - though external protection (e.g., conduit, cable glands) is recommended in high-dust or high-vibration settings.