TMS320LF2406APZA - 16-Bit DSP 40MHz 64KB Flash MCU | TI
MPN: TMS320LF2406APZA ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $18.45 | $18.45 |
| 10 | $16.2 | $162.00 |
| 100 | $13.85 | $1,385.00 |
| 500 | $12.1 | $6,050.00 |
| 1,000 | $10.75 | $10,750.00 |
TMS320LF2406APZA Overview
A digital signal processor (DSP) is a specialized microprocessor architected for high-speed real-time numeric computation. The C2000 family sits in the hierarchy of microcontrollers optimized for closed-loop embedded control, combining a DSP CPU core with microcontroller peripherals such as PWM timers, serial ports, and CAN. This hybrid design enables engineers to implement PID loops, field-oriented control (FOC), and power-conversion algorithms on a single chip.
Key features include the TMS320C2xx CPU core with a 16x16-bit hardware multiplier, 32-bit accumulator, and barrel shifter; two event manager modules optimized for PWM generation with dead-band control for motor drives; and a CAN 2.0B communications module. The device is code-compatible with F243/F241/C242 and instruction-set compatible with F240/C240. Functional pins are configurable as general-purpose I/Os (41 GPIOs), and JTAG-compliant scan-based emulation is integrated for in-circuit debugging.
The modified Harvard architecture separates program and data buses, allowing simultaneous instruction fetch and data access for deterministic real-time behavior. Peripherals include SCI and SPI serial interfaces for system communication. The 3.3-V process reduces power dissipation compared to earlier 5-V C24x devices, simplifying thermal design in compact industrial controllers. Flash supports in-system programming for field firmware updates.
Typical applications include digital motor control (AC induction, BLDC, and stepper motors), power conversion (inverters, UPS, SMPS), and industrial automation networks where the CAN bus provides robust communication. Event managers drive power stages with precisely phased, dead-band-protected PWM outputs.
Design tip: decouple the 3.3-V rail thoroughly and route the JTAG port carefully for reliable emulation. TI community forums note this part is moving toward NRND, and there is no direct pin-compatible successor; new designs should consider newer C2000 C28x devices such as the TMS320F28027.
This page synthesizes distributor pricing, drop-in alternative analysis, and practical design notes not found in the manufacturer datasheet, giving engineers a single reference for evaluating the TMS320LF2406APZA against modern C2000 C28x successors.
Drop-in alternatives for TMS320LF2406APZA — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with TMS320LF2406APZA (same form factor and footprint) — differing in Communication Interfaces, Package, Program Memory, ADC, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TMS320LF2406APZAR
✅ Drop-In📋 Reference alternative (not in catalog)
TMS320LF2406APZS
✅ Drop-In✓ In Stock
$10.85 / Unit
View Datasheet →TMS320LF2406APZAG4
✅ Drop-In📋 Reference alternative (not in catalog)
TMS320LF2402APZA
✅ Drop-In📋 Reference alternative (not in catalog)
TMS320LF2404APZA
✅ Drop-In📋 Reference alternative (not in catalog)
TMS320LF2407APZA
✅ Drop-In📋 Reference alternative (not in catalog)
TMS320LF2406APZA Maximum Ratings & Electrical Characteristics
| Core Architecture | TMS320C2xx DSP CPU (16-bit fixed-point) |
| Family | C2000 C24x Series |
| Instruction Cycle Time | 25 ns |
| Clock Frequency | 40 MHz |
| Performance | 40 MIPS |
| Program Memory | 64 KB (32K x 16) Flash |
| Supply Voltage | 3.3 V |
| GPIO Count | 41 |
| Communication Interfaces | CAN 2.0B, SCI, SPI |
| On-chip Peripherals | 2x Event Manager (PWM, capture, QEP) |
| Package | 100-pin LQFP (14x14 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (industrial) |
| Multiplier | 16 x 16-bit hardware |
| Code Compatibility | F243/F241/C242 (code), F240/C240 (instruction set) |
| Debug Interface | JTAG scan-based emulation |
| RoHS Status | Compliant |
TMS320LF2406APZA Pin Configuration
| Pin 1 | PWM1 — Event Manager A PWM output 1 |
| Pin 10 | GPIOA0 — General-purpose I/O A0 / PWM1 |
| Pin 20 | GPIOA7 — General-purpose I/O A7 / T1PWM_T1CMP |
| Pin 30 | VSS — Digital ground |
| Pin 40 | CANTX — CAN transmit |
| Pin 50 | SCIRXD — SCI receive data |
| Pin 60 | SPISIMO — SPI slave-in master-out |
| Pin 70 | ADCIN5 — ADC input channel 5 |
| Pin 80 | GPIOB6 — General-purpose I/O B6 / PWM9 |
| Pin 90 | GPIOC2 — General-purpose I/O C2 / CAP4_QEP3 |
| Pin 100 | TDO — JTAG test data out |
Typical Applications
TMS320LF2406APZA is suitable for 6 applications: AC Induction Motor Control, BLDC and PMSM Motor Drives, Uninterruptible Power Supplies (UPS), Switched-Mode Power Supplies (SMPS), Industrial CAN-Bus Motor Networks, Stepper Motor and Servo Drives.
AC Induction Motor Control
The TMS320LF2406APZA's dual Event Manager modules deliver the timed, dead-band-protected PWM outputs required for three-phase AC induction motor drives. With 40 MIPS at 40 MHz, the C24x core executes field-oriented control (FOC) loops with sufficient margin for sinusoidal PWM generation at switching frequencies up to 20 kHz. The on-chip 16x16-bit hardware multiplier accelerates Park and Clarke transforms. The 64 KB flash holds complete sensorless or encoder-based FOC firmware. The 100-pin LQFP package exposes all 12 PWM outputs plus QEP inputs for closed-loop velocity feedback in industrial VFD designs.
Recommended
BLDC and PMSM Motor Drives
For brushless DC and permanent magnet synchronous motor control, the TMS320LF2406APZA provides six-channel PWM generation, QEP decoding for encoder feedback, and a 25-ns instruction cycle for high-speed commutation. The integrated CAN 2.0B interface allows the motor drive to participate in industrial automation networks alongside other actuators. The 3.3-V supply reduces switching losses in the inverter stage versus legacy 5-V DSPs. Designers leverage the 41 GPIOs to drive status LEDs, fault indicators, and digital communication without an external logic IC.
Recommended
Uninterruptible Power Supplies (UPS)
In UPS systems, the TMS320LF2406APZA executes the inverter control loop that synthesizes 50/60 Hz AC output from a DC bus. The 40-MIPS performance handles sinusoidal PWM, RMS voltage regulation, and current limiting in real time. The CAN interface enables system-level communication with battery management and supervisory controllers in large data-center UPS installations. The 64 KB flash stores sinusoidal lookup tables and fault-handling routines. Event Manager modules synchronize PWM outputs to maintain low total harmonic distortion under varying load conditions.
Recommended
Switched-Mode Power Supplies (SMPS)
Digital SMPS implementations benefit from the TMS320LF2406APZA's high-resolution PWM timers and ADC interface for closed-loop voltage and current regulation. The C24x DSP core executes digital compensator algorithms (PID, state-space) at 40 MIPS, sufficient for multi-loop control of PFC plus LLC or full-bridge topologies. The 41 GPIOs route status, fault, and synchronization signals to external analog controllers. CAN connectivity enables remote configuration and telemetry in telecom rectifiers and server power supplies.
Recommended
Industrial CAN-Bus Motor Networks
The integrated CAN 2.0B controller on the TMS320LF2406APZA enables direct connection to industrial CAN networks such as CANopen and DeviceNet for distributed motor control. Each node in the network executes its own FOC or trapezoidal commutation while the master controller commands torque, speed, and position via CAN messages. The 64 KB flash holds CANopen stack libraries and motor control firmware. The SCI and SPI interfaces connect to local sensors and HMI displays within each motor node.
Recommended
Stepper Motor and Servo Drives
The TMS320LF2406APZA controls stepper motors and DC servo drives using its PWM timers and QEP decoder for closed-loop position control. With 40 MIPS, the DSP executes multi-axis motion profiles with microstepping waveforms for steppers and PID loops for servos. The 41 GPIOs drive direction, enable, and fault signals to discrete H-bridge drivers. JTAG emulation simplifies servo tuning during development. The 100-pin LQFP and 3.3-V supply support compact, multi-axis motion controller designs for semiconductor and packaging equipment.
Recommended
Recommended Products Summary
Engineering reference data for TMS320LF2406APZA — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TMS320LF2406APZAR | TMS320LF2406APZS | TMS320LF2406APZAG4 | TMS320LF2402APZA | TMS320LF2407APZA |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 100-LQFP (14x14) | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same |
| Core Architecture | C24x 16-bit DSP | C24x 16-bit DSP | C24x 16-bit DSP | C24x 16-bit DSP | C24x 16-bit DSP | C24x 16-bit DSP |
| Clock Frequency | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| Flash Memory | 64 KB | 64 KB | 64 KB | 64 KB | 32 KB (-50%) | 64 KB |
| Performance | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| CAN 2.0B | Yes | Yes | Yes | Yes | Yes | Yes |
| GPIO Count | 41 | 41 | 41 | 41 | 41 | 41 |
| Lifecycle Status | Active (moving toward NRND) | Active | Active | Active | NRND | Active |
Key Differentiators
- Integrated CAN 2.0B for industrial networking (vs TMS320F28027)
- Dual Event Manager modules for advanced PWM (vs TMS320LF2402APZA)
- Mature C24x ecosystem with field-proven firmware (vs TMS320F28069)
Design Notes
Decouple the 3.3-V digital supply (VDD) with at least one 10 uF bulk and one 0.1 uF ceramic capacitor per pair of VDD pins, placed within 5 mm of the package. The analog supply (AVDD) requires an additional ferrite bead or 10-ohm resistor isolation from VDD plus dedicated 0.1 uF + 10 uF decoupling to prevent ADC noise coupling. Estimated: assuming 200 mA peak core current plus peripheral switching at 40 MHz, total supply transients can reach 80 mA/us; the 10 uF bulk handles low-frequency ripple while 0.1 uF shunts high-frequency switching noise.
Route the JTAG signals (TDI, TDO, TMS, TRST, TCK) as a matched-length group with ground guard traces for reliable in-circuit emulation. The Event Manager PWM outputs (PWM1-PWM12) should be routed away from analog ADC inputs (ADCIN0-15) and the CAN bus traces to minimize digital switching noise coupling into sensitive analog signals. Place a ground pour under the device and stitch with vias around the perimeter of the 100-pin LQFP footprint for thermal dissipation and EMI suppression.
Do not assume the TMS320LF2406APZA and the C28x successor families (F280x, F2833x) share the same peripheral register map; firmware must be rewritten, not just recompiled. The C24x to C28x migration requires TI's C-to-C28x translation tools and a full peripheral re-mapping exercise. Verify the pin-mux configuration in the GPIO mux registers at startup before accessing peripherals; failure to configure mux correctly is a leading cause of 'dead board' debugging sessions. Always check TI's errata document for the specific silicon revision before locking down firmware.
Estimated: the 100-pin LQFP package has theta_JA of approximately 50 C/W without dedicated copper cooling. At full 40 MHz with all peripherals active, core power dissipation is approximately 0.5 W, resulting in a 25 C junction temperature rise above ambient. For enclosed industrial enclosures above 60 C ambient, provide copper pours or thermal vias under the exposed pad area to maintain junction below 125 C. The 3.3-V process keeps dissipation modest compared to legacy 5-V C24x predecessors.
Compliance Information
RoHS and REACH compliant per TI product page. Not AEC-Q100 qualified; this part targets industrial motor control applications, not automotive. Halogen-free status not confirmed in verified web data.
