Texas Instruments TMS320LF2402APGA

Overview

TMS320LF2402APGA from Texas Instruments is a 32-bit fixed-point DSP controller based on the TMS320C2xx CPU core, designed for digital motor control. It delivers 40 MIPS at 40 MHz with 25-ns instruction cycle time, integrates a single Event Manager (EVA) with six PWM outputs and three capture units, and features 8-channel 10-bit ADC with 500-ns minimum conversion time - deployed in brushless DC motor drives and industrial servo systems.

For engineers reviewing the TMS320LF2402APGA datasheet, TMS320LF2402APGA pinout, TMS320LF2402APGA application, or TMS320LF2402APGA equivalent, key selection criteria include its 64-pin QFP (PG) package, absence of CAN and external memory interface, dual 16-bit GP timers, programmable deadband for PWM, and boot ROM support for in-circuit flash programming.

Technical Context

The TMS320LF2402APGA implements a static CMOS C2xx DSP core with code compatibility to TMS320F243/F241/C242 and module compatibility with F240. Its single Event Manager A provides synchronized PWM generation, input qualification for glitch immunity, and quadrature encoder interface logic for position feedback.

It uses a PLL-based clock generator supporting 40-MHz operation, includes a 256-word boot ROM for SCI/SPI bootloader execution, and supports three power-down modes with independent peripheral power gating - enabling low-power operation in battery-backed motion control nodes.

Key Specifications

Pinout & Package

Package: 64-pin QFP (PG), 14 × 14 mm body, 0.8-mm lead pitch, RoHS-compliant. Pinout validated per SPRS145L Rev. September 2007, Table 2 and PG package diagram (Page 10).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320LF2402APGA, the LF2403APAG offers scalable control for multi-axis systems, while the LC2402APAG trades flash flexibility for lower unit cost and guaranteed firmware immutability - both retain identical 64-pin QFP packaging and core timing behavior.

Availability

TMS320LF2402APGA is available at Aetrix Electronics and suitable for brushless DC motor drives, industrial servo amplifiers, and AC induction motor inverters requiring stable component supply across extended product lifecycles.

Supply support for TMS320LF2402APGA 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 connectivity technologies, with decades of leadership in DSP and motor control silicon.

The TMS320C2000™ platform - including the TMS320LF2402APGA - was engineered specifically for real-time digital power and motion control, integrating optimized peripherals to replace discrete MCU + analog + logic solutions in motor drives.

FAQ

What is the maximum operating frequency and instruction cycle time of the TMS320LF2402APGA?

The TMS320LF2402APGA operates at a maximum system clock frequency of 40 MHz, delivering a 25-ns instruction cycle time. This timing is achieved via an on-chip PLL that multiplies an external 5–20 MHz crystal or clock input. All arithmetic, logic, and peripheral operations - including PWM update and ADC conversion triggering - are synchronized to this deterministic clock domain, ensuring repeatable real-time behavior in motor control loops.

Does the TMS320LF2402APGA support CAN communication?

No, the TMS320LF2402APGA does not include a Controller Area Network (CAN) module. CAN is present only on TMS320LF2407A, LF2406A, and LF2403A variants. The TMS320LF2402APGA retains SCI (UART) for asynchronous serial communication but omits both CAN and SPI interfaces - confirmed in Table 1 (Device Summary) and functional block diagrams of SPRS145L.

How many PWM outputs does the TMS320LF2402APGA provide, and what advanced features do they support?

The TMS320LF2402APGA provides six 16-bit PWM outputs (PWM1–PWM6) through its single Event Manager A. These support center-aligned and edge-aligned modes, programmable deadband insertion (to prevent shoot-through in bridge drivers), emergency shutdown via PDPINTA, and synchronization with ADC conversions - all critical for safe, efficient 3-phase inverter control in motor drive applications.

What is the role of the BOOT_EN/XF pin on the TMS320LF2402APGA?

The BOOT_EN/XF pin on the TMS320LF2402APGA enables boot ROM execution on device reset, allowing in-circuit programming of Flash memory via SCI or SPI bootloader. It is active-low and functions only on Flash-based devices (LF series); it is not present on ROM-based LC variants. This pin must be pulled high externally during normal operation to execute user code from Flash.

Is the TMS320LF2402APGA pin-compatible with other devices in the 240xA family?

Yes, the TMS320LF2402APGA shares the same 64-pin QFP (PG) package and pinout with TMS320LC2402APAG and TMS320LF2403APAG (PAG variant), though signal functionality differs - e.g., CANRX/CANTX and SPI pins are GPIO-only on TMS320LF2402APGA. Pin compatibility enables footprint reuse, but firmware and peripheral initialization must match the specific device's capabilities as defined in SPRS145L.