Texas Instruments TMS320F2809NMFA

Overview

TMS320F2809NMFA from Texas Instruments is a 100-MHz C28x digital signal processor optimized for real-time motor control and digital power conversion, featuring 128K × 16 flash, 18K × 16 SARAM, 12-bit 16-channel ADC with 80-ns conversion, dual CAN modules, and 16 PWM outputs with 6 high-resolution HRPWM channels.

For engineers reviewing the TMS320F2809NMFA datasheet, TMS320F2809NMFA pinout, TMS320F2809NMFA application, or TMS320F2809NMFA equivalent, key selection criteria include CPU clock speed (100 MHz), on-chip memory size (128K flash), ADC performance (12.5 MSPS), eCAN-A/B support, and LQFP-100 packaging with industrial temperature range (–40°C to 85°C).

Technical Context

The TMS320F2809NMFA implements the TMS320C28x 32-bit CPU core with Harvard architecture, atomic operations, and unified memory model, enabling deterministic real-time execution. It integrates a Peripheral Interrupt Expansion (PIE) block supporting all 43 peripheral interrupts and a 128-bit security key for flash/OTP protection.

Its system control includes an on-chip oscillator, PLL, watchdog timer, and low-power modes (IDLE, STANDBY, HALT). The device supports software boot via SCI, SPI, CAN, I²C, or parallel I/O, and includes standard math tables in 4K × 16 boot ROM.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (PZ), body size 14.0 mm × 14.0 mm, industrial temperature grade (–40°C to 85°C).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar real-time control applications.

Compared with TMS320F2808PZ, the TMS320F2809NMFA delivers 100% more flash and full HRPWM capability across all six ePWM modules - critical for multi-axis servo drives. Against TMS320F28335PGMA, it trades floating-point throughput for deterministic fixed-point HRPWM timing and dual-CAN redundancy, better matching cost-sensitive industrial motor control designs.

Availability

TMS320F2809NMFA is available at Aetrix Electronics and suitable for industrial motor drives, solar inverters, and digital power supplies requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for TMS320F2809NMFA 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 company specializing in analog and embedded processing technologies, with leadership in real-time control and power management ICs.

The TMS320F2809NMFA belongs to TI's C2000™ real-time microcontroller product line, designed specifically for deterministic digital control of power electronics, motor drives, and energy systems.

FAQ

What is the operating temperature range for the TMS320F2809NMFA?

The TMS320F2809NMFA is rated for industrial operation from –40°C to +85°C. This rating applies to the NMFA suffix variant in the 100-pin LQFP (PZ) package and is validated per TI's recommended operating conditions. The device uses 1.8-V core and 3.3-V I/O supply rails across this full range, with thermal design considerations documented in section 8.13 of the datasheet. TMS320F2809NMFA maintains full specification compliance-including 100-MHz CPU operation and 80-ns ADC conversion-within this envelope.

Does the TMS320F2809NMFA support JTAG debugging?

Yes, the TMS320F2809NMFA fully supports IEEE 1149.1-1990 JTAG boundary scan via dedicated pins (TRST, TCK, TMS, TDO, TDI, EMU0, EMU1). It enables real-time emulation, analysis, and breakpoint functions through Code Composer Studio™ IDE. The JTAG interface operates at system clock speeds up to 100 MHz and supports secure debug access control via the 128-bit code-security module. TMS320F2809NMFA also supports advanced real-time debug features including hardware trace and live register inspection without halting CPU execution.

How many PWM outputs does the TMS320F2809NMFA provide, and what is the HRPWM resolution?

The TMS320F2809NMFA provides 16 EPWM outputs across six ePWM modules (ePWM1–6), with six dedicated HRPWM channels (ePWM1A–6A) offering 150-ps minimum pulse width resolution via the MEP (Minimum Edge Pulse) feature. This resolution is achieved using the high-frequency TBCLK derived from the system clock and is specified under recommended operating conditions. All HRPWM outputs are available simultaneously and can be independently configured for dead-time insertion, phase shifting, and trip-zone protection. TMS320F2809NMFA's HRPWM capability is essential for driving modern wide-bandgap power devices in high-efficiency converters.

What ADC performance specifications apply to the TMS320F2809NMFA?

The TMS320F2809NMFA integrates a 12-bit, 16-channel SAR ADC with two independent sample-and-hold circuits, supporting both single and simultaneous conversions. Its fastest conversion time is 80 ns (12.5 MSPS), which is exclusive to the F2809 variant and enabled by dual 8-channel input multiplexers (ADCINA/B). Internal or external reference selection is supported, and the ADC operates with ±1 LSB INL/DNL over temperature. TMS320F2809NMFA's ADC performance is fully characterized in section 8.15 of the datasheet and validated across the –40°C to +85°C range with 3.3-V analog supply.

Is the TMS320F2809NMFA pin-compatible with other F280x devices in the same package?

Yes, the TMS320F2809NMFA is pin-compatible with other 100-pin PZ-package F280x devices including TMS320F2808PZ, TMS320F2806PZ, and TMS320F2802PZ. All share identical mechanical footprint, power pin assignments (VDD/VSS), and GPIO mapping. Functional differences exist in peripheral enablement (e.g., HRPWM count, flash size, eCAN-B presence), but PCB layout and signal routing remain interchangeable. This compatibility simplifies migration paths and platform reuse. TMS320F2809NMFA retains full backward compatibility with legacy F280x hardware designs using the PZ package.