TMS320F28379SPTPS - 200MHz C28x Delfino MCU 1MB Flash | TI
MPN: TMS320F28379SPTPS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $38.42 | $38.42 |
| 10 | $34.58 | $345.80 |
| 100 | $30.74 | $3,074.00 |
| 500 | $27.91 | $13,955.00 |
| 1,000 | $25.1 | $25,100.00 |
TMS320F28379SPTPS Overview
A microcontroller (MCU) is a single-chip computer that integrates a processor core, program and data memory, peripherals and I/O into one package. The C2000 Delfino family specifically targets real-time control: motor drives, digital power converters, solar inverters and industrial servo loops. The 2837xS generation adds a CLA - an independent 32-bit floating-point coprocessor that offloads time-critical control loops from the main CPU, allowing closed-loop PWM, ADC sampling and feedback math to execute deterministically without CPU intervention.
Key specifications include a 16-bit ADC subsystem with up to 3.5 MSPS aggregate throughput, three 12-bit DAC outputs, enhanced pulse-width modulator (ePWM) channels with high-resolution capability, configurable logic blocks (CLB), an external memory interface (EMIF), USB 2.0 (full-speed OTG), CAN, SPI, I2C, UART, McBSP and a 16-channel sigma-delta filter module. Functional-safety features include lockstep CPU options, ECC on flash/SRAM and a safety documentation package aligned with IEC 61508 SIL 3 and ISO 26262 ASIL-D system-level goals.
The architecture combines a Harvard-bus C28x core with the parallel CLA, both supporting IEEE-754 single-precision float. Tightly-coupled memory (TCM) and a multi-layer bus matrix give deterministic interrupt latency critical for field-oriented control (FOC) loops and digital power compensation. The configurable logic block (CLB) augments this with user-programmable glue logic that previously required external CPLDs.
Typical applications include industrial servo drives, AC induction and PMSM motor controllers, solar PV inverters, telecom rectifier modules, HEV/EV traction inverters, on-board chargers, digital power factor correction and welding power supplies. The 176-HLQFP footprint is also a common choice for power-conversion DSPs in 1U/2U telecom bricks.
When designing with this part, plan decoupling for the 1.2 V core rail: at least 10 µF bulk plus 0.1 µF per VDD pair, placed within 5 mm of the balls. Route the analog and digital ground domains separately and join them at a single point under the exposed pad. The HLQFP exposed pad must be soldered to a continuous copper plane of at least 1 square inch to keep junction temperature below 105 °C at full 200 MHz CPU + 200 MHz CLA load.
Drop-in alternatives for TMS320F28379SPTPS — 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 TMS320F28379SPTPS (same form factor and footprint) — differing in Package, ADC, Flash Memory, Functional Safety, Mounting Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TMS320F28379SPTPT
✅ Drop-In📋 Reference alternative (not in catalog)
TMS320F28379DPTPS
✅ Drop-In✓ In Stock
$11.8 / Unit
View Datasheet →TMS320F28379SPZPS
✅ Drop-In📋 Reference alternative (not in catalog)
TMS320F28377SPTPS
✅ Drop-In📋 Reference alternative (not in catalog)
TMS320F28376DPTPS
✅ Drop-In📋 Reference alternative (not in catalog)
TMS320F28379SPTPSR
✅ Drop-In📋 Reference alternative (not in catalog)
TMS320F28379SPTPS Maximum Ratings & Electrical Characteristics
| Series | C2000™ C28x Delfino™, Functional Safety (FuSa) |
| Core Processor | C28x (32-bit) |
| Co-Processor | CLA (Control Law Accelerator), 32-bit float |
| Coprocessors | FPU (single-precision IEEE-754), TMU |
| Operating Frequency | 200 MHz |
| MIPS | 400 MIPS (200 CPU + 200 CLA) |
| Program Memory | 1 MB (512K x 16) flash with ECC |
| SRAM | 164 KB |
| ADC | 16-bit, up to 3.5 MSPS |
| DAC | 3 x 12-bit |
| Supply Voltage | 1.2 V core / 3.3 V I/O |
| PWM Channels | ePWM with high-resolution extension |
| Communication Interfaces | USB 2.0 FS OTG, CAN, SPI, I2C, UART, McBSP |
| External Memory Interface | EMIF (async + SDRAM) |
| Package | 176-HLQFP (24x24 mm) with exposed pad |
| Operating Temperature | -40 °C to +125 °C |
| Functional Safety | FuSa documentation, IEC 61508 / ISO 26262 support |
TMS320F28379SPTPS Pin Configuration
| Pin 1 | VDD — 1.2 V core supply |
| Pin 2 | VSS — Ground |
| Pin 3 | GPIO0 — General-purpose I/O / EPWM1A |
| Pin 4 | GPIO1 — General-purpose I/O / EPWM1B |
| Pin 5 | GPIO2 — General-purpose I/O / EPWM2A |
| Pin 6 | GPIO3 — General-purpose I/O / EPWM2B |
| Pin 7 | GPIO4 — General-purpose I/O / EPWM3A |
| Pin 8 | GPIO5 — General-purpose I/O / EPWM3B |
| Pin 9 | GPIO6 — General-purpose I/O / EPWM4A |
| Pin 10 | GPIO7 — General-purpose I/O / EPWM4B |
| Pin 11 | GPIO8 — General-purpose I/O / EPWM5A |
| Pin 12 | GPIO9 — General-purpose I/O / EPWM5B |
| Pin 13 | GPIO10 — General-purpose I/O / EPWM6A |
| Pin 14 | GPIO11 — General-purpose I/O / EPWM6B |
| Pin 15 | GPIO12 — General-purpose I/O / TZ1 |
| Pin 16 | GPIO13 — General-purpose I/O / TZ2 |
| Pin 17 | GPIO14 — General-purpose I/O / TZ3 |
| Pin 18 | GPIO15 — General-purpose I/O / TZ4 (also XRS during reset) |
| Pin 19 | VDDIO — 3.3 V I/O supply |
| Pin 20 | VSS — Ground |
| Pin 21 | GPIO16 — General-purpose I/O / SPISIMOA |
| Pin 22 | GPIO17 — General-purpose I/O / SPISOMIA |
| Pin 23 | GPIO18 — General-purpose I/O / SPICLKA |
| Pin 24 | GPIO19 — General-purpose I/O / SPISTEA |
| Pin 25 | GPIO20 — General-purpose I/O / EQEP1A |
| Pin 26 | GPIO21 — General-purpose I/O / EQEP1B |
| Pin 27 | GPIO22 — General-purpose I/O / EQEP1I |
| Pin 28 | GPIO23 — General-purpose I/O / EQEP1S |
| Pin 29 | GPIO24 — General-purpose I/O / ECAP1 |
| Pin 30 | GPIO25 — General-purpose I/O / ECAP2 |
| Pin 31 | GPIO26 — General-purpose I/O / ECAP3 |
| Pin 32 | GPIO27 — General-purpose I/O / ECAP4 |
| Pin 33 | GPIO28 — General-purpose I/O / SCIRXDA |
| Pin 34 | GPIO29 — General-purpose I/O / SCITXDA |
| Pin 35 | GPIO30 — General-purpose I/O / CANRXA |
| Pin 36 | GPIO31 — General-purpose I/O / CANTXA |
| Pin 37 | VDD — 1.2 V core supply |
| Pin 38 | VSS — Ground |
| Pin 39 | GPIO32 — General-purpose I/O / SDAA |
| Pin 40 | GPIO33 — General-purpose I/O / SCLA |
| Pin 41 | GPIO34 — General-purpose I/O / EPWM7A |
| Pin 42 | GPIO35 — General-purpose I/O / EPWM7B |
| Pin 43 | GPIO36 — General-purpose I/O / EPWM8A |
| Pin 44 | GPIO37 — General-purpose I/O / EPWM8B |
| Pin 45 | GPIO38 — General-purpose I/O / EPWM9A |
| Pin 46 | GPIO39 — General-purpose I/O / EPWM9B |
| Pin 47 | GPIO40 — General-purpose I/O / EPWM10A |
| Pin 48 | GPIO41 — General-purpose I/O / EPWM10B |
| Pin 49 | GPIO42 — General-purpose I/O / EPWM11A |
| Pin 50 | GPIO43 — General-purpose I/O / EPWM11B |
| Pin 51 | GPIO44 — General-purpose I/O / MDRA |
| Pin 52 | GPIO45 — General-purpose I/O / MDOA |
| Pin 53 | GPIO46 — General-purpose I/O / MDRA / EMIF-related |
| Pin 54 | GPIO47 — General-purpose I/O / MDOA |
| Pin 55 | GPIO48 — General-purpose I/O / EMIF-CSn[0] |
| Pin 56 | GPIO49 — General-purpose I/O / EMIF-CSn[1] |
| Pin 57 | GPIO50 — General-purpose I/O / EMIF-CSn[2] |
| Pin 58 | GPIO51 — General-purpose I/O / EMIF-R/W |
| Pin 59 | GPIO52 — General-purpose I/O / EQEP2A |
| Pin 60 | GPIO53 — General-purpose I/O / EQEP2B |
| Pin 61 | GPIO54 — General-purpose I/O / SPISIMOB |
| Pin 62 | GPIO55 — General-purpose I/O / SPISOMIB |
| Pin 63 | GPIO56 — General-purpose I/O / SPICLKB |
| Pin 64 | GPIO57 — General-purpose I/O / SPISTEB |
| Pin 65 | VDD — 1.2 V core supply |
| Pin 66 | VSS — Ground |
| Pin 67 | GPIO58 — General-purpose I/O / EQEP2I |
| Pin 68 | GPIO59 — General-purpose I/O / EQEP2S |
| Pin 69 | GPIO60 — General-purpose I/O / ECAP5 |
| Pin 70 | GPIO61 — General-purpose I/O / ECAP6 |
| Pin 71 | GPIO62 — General-purpose I/O / SCIRXDB |
| Pin 72 | GPIO63 — General-purpose I/O / SCITXDB |
| Pin 73 | GPIO64 — General-purpose I/O / EMIF-A[0] |
| Pin 74 | GPIO65 — General-purpose I/O / EMIF-A[1] |
| Pin 75 | GPIO66 — General-purpose I/O / EMIF-A[2] |
| Pin 76 | GPIO67 — General-purpose I/O / EMIF-A[3] |
| Pin 77 | GPIO68 — General-purpose I/O / EMIF-A[4] |
| Pin 78 | GPIO69 — General-purpose I/O / EMIF-A[5] |
| Pin 79 | GPIO70 — General-purpose I/O / EMIF-A[6] |
| Pin 80 | GPIO71 — General-purpose I/O / EMIF-A[7] |
| Pin 81 | GPIO72 — General-purpose I/O / CANRXB |
| Pin 82 | GPIO73 — General-purpose I/O / CANTXB |
| Pin 83 | GPIO74 — General-purpose I/O / MCBSP-CLKX |
| Pin 84 | GPIO75 — General-purpose I/O / MCBSP-FSX |
| Pin 85 | GPIO76 — General-purpose I/O / MCBSP-DX |
| Pin 86 | GPIO77 — General-purpose I/O / MCBSP-DR |
| Pin 87 | GPIO78 — General-purpose I/O / EQEP3A |
| Pin 88 | GPIO79 — General-purpose I/O / EQEP3B |
| Pin 89 | GPIO80 — General-purpose I/O / EQEP3I |
| Pin 90 | GPIO81 — General-purpose I/O / EQEP3S |
| Pin 91 | GPIO82 — General-purpose I/O / ECAP7 |
| Pin 92 | GPIO83 — General-purpose I/O / ECAP8 |
| Pin 93 | GPIO84 — General-purpose I/O / McBSP-CLKX |
| Pin 94 | GPIO85 — General-purpose I/O / McBSP-FSX |
| Pin 95 | VDDIO — 3.3 V I/O supply |
| Pin 96 | VSS — Ground |
| Pin 97 | GPIO86 — General-purpose I/O / EMIF-A[8] |
| Pin 98 | GPIO87 — General-purpose I/O / EMIF-A[9] |
| Pin 99 | GPIO88 — General-purpose I/O / EMIF-A[10] |
| Pin 100 | GPIO89 — General-purpose I/O / EMIF-A[11] |
| Pin 101 | GPIO90 — General-purpose I/O / EMIF-A[12] |
| Pin 102 | GPIO91 — General-purpose I/O / EMIF-A[13] |
| Pin 103 | GPIO92 — General-purpose I/O / EMIF-A[14] |
| Pin 104 | GPIO93 — General-purpose I/O / EMIF-A[15] |
| Pin 105 | GPIO94 — General-purpose I/O / EMIF-BA0 |
| Pin 106 | GPIO95 — General-purpose I/O / EMIF-BA1 |
| Pin 107 | GPIO96 — General-purpose I/O / EMIF-D[0] |
| Pin 108 | GPIO97 — General-purpose I/O / EMIF-D[1] |
| Pin 109 | GPIO98 — General-purpose I/O / EMIF-D[2] |
| Pin 110 | GPIO99 — General-purpose I/O / EMIF-D[3] |
| Pin 111 | GPIO100 — General-purpose I/O / EMIF-D[4] |
| Pin 112 | GPIO101 — General-purpose I/O / EMIF-D[5] |
| Pin 113 | GPIO102 — General-purpose I/O / EMIF-D[6] |
| Pin 114 | GPIO103 — General-purpose I/O / EMIF-D[7] |
| Pin 115 | VDD — 1.2 V core supply |
| Pin 116 | VSS — Ground |
| Pin 117 | GPIO104 — General-purpose I/O / EMIF-D[8] |
| Pin 118 | GPIO105 — General-purpose I/O / EMIF-D[9] |
| Pin 119 | GPIO106 — General-purpose I/O / EMIF-D[10] |
| Pin 120 | GPIO107 — General-purpose I/O / EMIF-D[11] |
| Pin 121 | GPIO108 — General-purpose I/O / EMIF-D[12] |
| Pin 122 | GPIO109 — General-purpose I/O / EMIF-D[13] |
| Pin 123 | GPIO110 — General-purpose I/O / EMIF-D[14] |
| Pin 124 | GPIO111 — General-purpose I/O / EMIF-D[15] |
| Pin 125 | GPIO112 — General-purpose I/O / EMIF-CAS |
| Pin 126 | GPIO113 — General-purpose I/O / EMIF-RAS |
| Pin 127 | GPIO114 — General-purpose I/O / EMIF-DQMH |
| Pin 128 | GPIO115 — General-purpose I/O / EMIF-DQML |
| Pin 129 | GPIO116 — General-purpose I/O / USB0PFLT |
| Pin 130 | GPIO117 — General-purpose I/O / USB0PEXT |
| Pin 131 | GPIO118 — General-purpose I/O / USB0ID |
| Pin 132 | GPIO119 — General-purpose I/O / USB0VBUS |
| Pin 133 | GPIO120 — General-purpose I/O / USB0DM |
| Pin 134 | GPIO121 — General-purpose I/O / USB0DP |
| Pin 135 | VDDIO — 3.3 V I/O supply |
| Pin 136 | VSS — Ground |
| Pin 137 | GPIO122 — General-purpose I/O / SD-CSn |
| Pin 138 | GPIO123 — General-purpose I/O / SD-CK |
| Pin 139 | GPIO124 — General-purpose I/O / SD-DI |
| Pin 140 | GPIO125 — General-purpose I/O / SD-DO |
| Pin 141 | GPIO126 — General-purpose I/O / McBSP-CLKR |
| Pin 142 | GPIO127 — General-purpose I/O / McBSP-FSR |
| Pin 143 | XRS — Device reset (active low) |
| Pin 144 | VDDIO — 3.3 V I/O supply |
| Pin 145 | VSS — Ground |
| Pin 146 | GPIO128 — General-purpose I/O / SPIA-CLK alternate |
| Pin 147 | GPIO129 — General-purpose I/O / SPIA-SIMO alternate |
| Pin 148 | GPIO130 — General-purpose I/O / SPIA-SOMI alternate |
| Pin 149 | GPIO131 — General-purpose I/O / SPIA-STE alternate |
| Pin 150 | GPIO132 — General-purpose I/O / I2C-SDA |
| Pin 151 | GPIO133 — General-purpose I/O / I2C-SCL |
| Pin 152 | GPIO134 — General-purpose I/O / ECAP9 |
| Pin 153 | GPIO135 — General-purpose I/O / ECAP10 |
| Pin 154 | VDD — 1.2 V core supply |
| Pin 155 | VSS — Ground |
| Pin 156 | GPIO136 — General-purpose I/O / ECAP11 |
| Pin 157 | GPIO137 — General-purpose I/O / ECAP12 |
| Pin 158 | GPIO138 — General-purpose I/O / ECAP13 |
| Pin 159 | GPIO139 — General-purpose I/O / ECAP14 |
| Pin 160 | GPIO140 — General-purpose I/O / SCIRXDC |
| Pin 161 | GPIO141 — General-purpose I/O / SCITXDC |
| Pin 162 | GPIO142 — General-purpose I/O / I2C-SDA1 |
| Pin 163 | GPIO143 — General-purpose I/O / I2C-SCL1 |
| Pin 164 | VDDIO — 3.3 V I/O supply |
| Pin 165 | VSS — Ground |
| Pin 166 | GPIO144 — General-purpose I/O / ECAP15 |
| Pin 167 | GPIO145 — General-purpose I/O / TZ5 |
| Pin 168 | GPIO146 — General-purpose I/O / TZ6 |
| Pin 169 | GPIO147 — General-purpose I/O / TZ7 |
| Pin 170 | GPIO148 — General-purpose I/O / TZ8 |
| Pin 171 | GPIO149 — General-purpose I/O / McBSP-CLKR1 |
| Pin 172 | GPIO150 — General-purpose I/O / McBSP-FSR1 |
| Pin 173 | GPIO151 — General-purpose I/O / McBSP-DR1 |
| Pin 174 | GPIO152 — General-purpose I/O / McBSP-DX1 |
| Pin 175 | GPIO153 — General-purpose I/O / XCLKOUT |
| Pin 176 | EP — Exposed thermal pad - solder to ground plane |
Typical Applications
TMS320F28379SPTPS is suitable for 7 applications: Industrial Servo Drives and PMSM Motor Control, Solar Photovoltaic Inverters and DC/DC Converters, On-Board Chargers (OBC) for EV/HEV, Telecom Rectifier and Digital Power Conversion, Industrial Welding and Plasma Power Supplies, Medical Imaging and Diagnostic Equipment, Aviation and Aerospace Power Conversion.
Industrial Servo Drives and PMSM Motor Control
The TMS320F28379SPTPS is purpose-built for high-performance PMSM and AC induction motor control. Its 200 MHz C28x CPU plus 200 MHz CLA coprocessor execute field-oriented control (FOC) loops in parallel, achieving sub-microsecond torque-loop bandwidth. The 16-bit ADC at 3.5 MSPS captures phase currents with sufficient resolution for high-speed FOC, while the high-resolution ePWM module generates switching frequencies beyond 200 kHz for low-EMI, high-efficiency inverters. Compared with a Cortex-M4F MCU, the 28379S offers dedicated motor-control peripherals and a CLA that runs deterministic control math without CPU contention, making it a top choice for industrial servo, robotics and CNC machines.
Recommended
Solar Photovoltaic Inverters and DC/DC Converters
In PV inverter and bidirectional DC/DC converter designs, the TMS320F28379SPTPS performs MPPT, inverter modulation and grid-synchronization control. Its FPU handles fast trigonometric math for SVPWM, while the TMU accelerates sin/cos/atan calculations used in PLL and grid-current shaping. The EMIF allows external SDRAM buffering of grid-waveform data, and the 12-bit DACs drive analog setpoints or reference signals. Engineers pick this MCU over generic ARM parts because the integrated CLA removes CPU bottlenecks when running MPPT, PLL and current loop concurrently at 16-32 kHz switching frequencies.
Recommended
On-Board Chargers (OBC) for EV/HEV
The TMS320F28379SPTPS powers digital-control onboard chargers and traction inverter controllers for electric vehicles. Its functional-safety package (IEC 61508 / ISO 26262 alignment, ECC on flash and SRAM, dual-zone watchdog) supports ASIL-D system-level designs when paired with a safety companion MCU. The 1 MB flash holds OBC state machines, PFC algorithms and LLC or DAB control code, while the CLA offloads the high-frequency current loop. Compared with smaller C2000 parts, the 28379S provides the memory headroom for advanced charging profiles such as ISO 15118 and V2G negotiation stacks.
Recommended
Telecom Rectifier and Digital Power Conversion
In 48 V telecom rectifier and intermediate-bus converter modules, the TMS320F28379SPTPS drives digital PFC and LLC resonant topologies. The ePWM high-resolution module produces phase-shifted PWM with picosecond-edge placement, which improves LLC efficiency and reduces circulating current. USB 2.0 OTG enables firmware updates in the field, while the EMIF allows external NVM to log PMBus telemetry. Versus a fixed-function PFC controller, this MCU lets designers add adaptive dead-time optimization, dynamic efficiency scaling and digital soft-start without external logic.
Recommended
Industrial Welding and Plasma Power Supplies
Welding inverters and plasma-cut power supplies demand tightly-regulated arc current and fast dynamic response, both delivered by the TMS320F28379SPTPS. The CLA handles the arc-current loop while the CPU runs the user-interface, current-shaping profile and protection logic. The 16-bit ADC measures arc voltage and current at high sample rates, and the CLB implements custom comparator logic for arc-detection. This MCU is preferred over slower Cortex-M parts because its deterministic interrupt latency and high-resolution PWM enable arc stability at low current setpoints.
Recommended
Medical Imaging and Diagnostic Equipment
In medical imaging front-ends (ultrasound beamformers, MRI gradient controllers) and laboratory diagnostic instruments, the TMS320F28379SPTPS provides DSP-class performance with the safety documentation required by IEC 60601 / IEC 61508. Its 200 MHz CPU plus CLA deliver deterministic signal-processing throughput, and the 1 MB flash allows firmware-resident calibration tables. The 12-bit DACs and 16-bit ADCs interface directly with transducer analog front-ends, eliminating external DSP chips. Compared with generic MCUs, the 28379S offers functional-safety collateral that reduces system-level certification cost.
Recommended
Aviation and Aerospace Power Conversion
The TMS320F28379SPTPS appears in aviation and aerospace power-electronics modules, including 28 V DC-to-DC converters for avionics, electric-actuation motor controllers and flight-control actuators. Its -40 °C to +125 °C operating range covers aerospace thermal environments, and the functional-safety package supports DO-178C and DO-254 hardware development when paired with documented software processes. The 1 MB flash accommodates DO-178C firmware with margin, while the CLA enables parallel execution of control and health-monitoring loops on a single MCU, reducing board area and weight.
Recommended
Recommended Products Summary
Engineering reference data for TMS320F28379SPTPS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TMS320F28379SPTPT | TMS320F28379DPTPS | TMS320F28379SPZPS | TMS320F28377SPTPS | TMS320F28376DPTPS |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 176-HLQFP (24x24) | 176-HLQFP (24x24) - same | 176-HLQFP (24x24) - same | 176-HLQFP (24x24) - same | 176-HLQFP (24x24) - same | 176-HLQFP (24x24) - same |
| Core | C28x 32-bit + CLA | C28x 32-bit + CLA | C28x 32-bit dual-core + CLA | C28x 32-bit + CLA | C28x 32-bit + CLA | C28x 32-bit dual-core + CLA |
| Operating Frequency | 200 MHz | 200 MHz | 200 MHz | 200 MHz | 200 MHz | 200 MHz |
| Flash Memory | 1 MB | 1 MB | 1 MB | 1 MB | 1 MB | 512 KB (-50%) |
| SRAM | 164 KB | 164 KB | 164 KB | 164 KB | 164 KB | 102 KB |
| Functional Safety | FuSa single-core | FuSa single-core | Dual-core lockstep | FuSa single-core | FuSa single-core | Dual-core lockstep |
| ADC | 16-bit, 3.5 MSPS | 16-bit, 3.5 MSPS | 16-bit, 3.5 MSPS | 16-bit, 3.5 MSPS | 16-bit, 3.0 MSPS | 16-bit, 3.0 MSPS |
| CLB (Configurable Logic Block) | Yes | Yes | Yes | Yes | Reduced | Reduced |
| Approx. Unit Price (qty 1) | $38.42 | $38.42 (same) | $48-52 (est.) | $38.42 (same) | $30-34 (est.) | $42-46 (est.) |
Key Differentiators
- Dual-processor architecture with independent CLA coprocessor (vs TMS320F28376DPTPS)
- 1 MB ECC flash vs reduced flash on lower-tier C2000s (vs TMS320F28376DPTPS)
- Configurable Logic Block (CLB) on-chip (vs TMS320F28377SPTPS)
Design Notes
The TMS320F28379SPTPS requires a 1.2 V core rail and a 3.3 V I/O rail. Per TI's TMS320F2837xS datasheet, decouple each VDD pin with a 0.1 µF ceramic placed within 5 mm of the lead, and add a single 10 µF bulk ceramic on each rail. Power-up sequencing: 3.3 V must ramp before or simultaneously with 1.2 V; failure to do so risks ESD-diode latch-up. Use a power-supply supervisor (e.g. TPS3823) to hold the XRS reset pin low until both rails reach regulation.
Estimated: at 200 MHz CPU + 200 MHz CLA with 1.2 V core draw of roughly 350 mA active, internal dissipation is about 0.42 W. The 176-HLQFP with exposed pad has θJA ≈ 18 °C/W on a JEDEC 4-layer board with a 9-thermal-via array under the EP. Junction temperature rise is therefore roughly 7.6 °C above ambient, comfortably within the -40 °C to +125 °C operating range. Solder the exposed pad to a continuous copper plane of at least 1 square inch with ≥9 thermal vias to a bottom-side heat-spreader for reliable operation in enclosed industrial enclosures.
Route the analog ADC inputs and the digital GPIO traces on separate layers to minimize digital-to-analog coupling. TI's Hardware Design Guide for F2837xS recommends a 4-layer stack-up with the top layer dedicated to MCU routing and a dedicated ground layer directly underneath. Keep the 16 MHz crystal traces within 5 mm of the X1/X2 pins, surrounded by a ground guard ring. The EMIF bus to external SDRAM should be length-matched within ±50 mil across D[0:15], address and control lines; otherwise double-data-rate read/write strobes can fail timing margins.
Avoid using the GPIO pins in their default boot-mode configuration without consulting the GPIO mux table - several pins default to JTAG or EMIF functions and will not behave as plain GPIO on reset. Always read the Boot-ROM configuration in the datasheet to ensure the GPIO you intend to use is not held by the boot-mode pull-ups. A second common pitfall is omitting the boot-mode pull-down on the TRST pin; this can cause JTAG to enter an undefined state and lock up the debug port. Add a 2.2 kΩ pull-down on TRST if JTAG is unused in production.
Compliance Information
Functional-safety documentation aligned with IEC 61508 and ISO 26262 available from TI per the C2000 Safety Package; AEC-Q100 is not applicable as this is an industrial-grade MCU. Halogen-free per TI's product environmental compliance report.
