Texas Instruments TMS320LF2406APZAR

Overview

TMS320LF2406APZAR from Texas Instruments is a 32-bit fixed-point DSP controller based on the TMS320C2xx CPU core, designed for real-time digital motor control. It delivers 40 MIPS at 40 MHz with 25-ns instruction cycle time, integrates dual event-manager modules (EVA/EVB), 16-channel 10-bit ADC (500-ns min conversion), CAN 2.0B interface, and 32K words of on-chip Flash memory - deployed in brushless DC and AC induction motor drives.

For engineers reviewing the TMS320LF2406APZAR datasheet, TMS320LF2406APZAR pinout, TMS320LF2406APZAR application, or TMS320LF2406APZAR equivalent, key selection criteria include PWM channel count (12), dual EV module support, Flash-based reprogrammability, 100-pin LQFP package compatibility, and integrated CAN/SCI/SPI peripherals for embedded motion control systems.

Technical Context

The TMS320LF2406APZAR implements a static CMOS C2xx DSP core with instruction-set compatibility to TMS320F240/F243 devices and full module compatibility with F240 peripherals. Its dual event-manager architecture supports synchronized PWM generation, programmable deadband insertion, and quadrature encoder interface for closed-loop position/speed control.

It features a PLL-based clock generator enabling 40-MHz operation from external crystal or clock input, twin 8-state ADC sequencers triggered by EVA/EVB events, and JTAG-compliant scan-based emulation per IEEE 1149.1 (boundary scan not supported). Power management includes three low-power modes and independent peripheral power-down capability.

Key Specifications

Pinout & Package

Package: 100-pin Low-Profile Quad Flat Package (LQFP), PZ suffix, RoHS-compliant, body size 14 mm × 14 mm, 0.5-mm pitch.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar DSP controller applications.

Compared with TMS320LF2407APGE, the TMS320LF2406APZAR offers identical DSP performance and dual-EV functionality in a smaller 100-pin footprint but lacks external memory expansion; versus TMS320LC2406APZ, it retains field-upgradability via Flash and boot ROM while sharing the same package and peripheral feature set.

Availability

TMS320LF2406APZAR is available at Aetrix Electronics and suitable for AC induction drives, brushless DC motor controllers, industrial PLC motion modules, and solar inverter control systems requiring stable component supply and long-term manufacturing continuity.

Supply support for TMS320LF2406APZAR 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

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and digital signal processing technologies, with decades of leadership in motor control ICs and DSP platforms.

The TMS320C2000™ platform - including the TMS320LF2406APZAR - was engineered specifically for real-time digital power conversion and motion control, integrating high-speed PWM, precision ADC, and motor-specific peripherals onto a single chip.

FAQ

What is the maximum operating frequency and instruction cycle time of the TMS320LF2406APZAR?

The TMS320LF2406APZAR operates at a maximum frequency of 40 MHz, delivering a 25-ns instruction cycle time. This timing is achieved using its internal PLL-based clock generator, which multiplies an external crystal or clock input. The 40-MIPS performance enables deterministic execution of complex motor control algorithms such as field-oriented control within strict real-time deadlines.

Does the TMS320LF2406APZAR support CAN communication, and what version is implemented?

Yes, the TMS320LF2406APZAR integrates a Controller Area Network (CAN) module compliant with ISO 11898-1:2003 (CAN 2.0B specification), supporting both standard (11-bit) and extended (29-bit) identifier frames. Pins CANRX/IOPC7 and CANTX/IOPC6 provide direct connection to an external CAN transceiver, enabling robust multi-node communication in industrial motor networks.

How many PWM outputs does the TMS320LF2406APZAR provide, and are they configurable for motor control?

The TMS320LF2406APZAR provides 12 PWM outputs - six from Event Manager A (EVA) and six from Event Manager B (EVB). All channels support center-aligned and edge-aligned modes, programmable deadband insertion (0–15.5 × TCLK), and synchronous update via EVA/EVB triggers. This configuration directly supports three-phase inverter control with complementary pair generation and fault-safe shutdown via PDPINTA.

What type and size of on-chip memory does the TMS320LF2406APZAR include?

The TMS320LF2406APZAR includes 32K × 16-bit on-chip Flash memory organized in four sectors (4K/12K/12K/4K), 544 words of dual-access RAM (DARAM), and 2K words of single-access RAM (SARAM). It also features a 256-word boot ROM for SCI/SPI-based in-system programming. The Flash supports password-protected code security to prevent unauthorized firmware access.

Is the TMS320LF2406APZAR pin-compatible with other devices in the TMS320x240xA family?

The TMS320LF2406APZAR shares the same 100-pin LQFP (PZ) package and pinout with TMS320LC2406APZ and TMS320LC2404APZ, enabling hardware reuse across Flash and ROM variants. However, it is not pin-compatible with the 144-pin TMS320LF2407APGE or 64-pin TMS320LF2403APAG devices due to differing package sizes and peripheral allocations.