TMS320F28235ZJZS

Texas Instruments · Automotive, AEC-Q100, C2000™ C28x Delfino™ Series

Texas Instruments Automotive, AEC-Q100, C2000™ C28x Delfino™ TMS320F28235ZJZS, 32-Bit Single-Core C28x, 150MHz, 512KB (256K x 16) FLASH, 34K x 16 RAM, 88 I/O, 176-BGA (15x15), -40°C~125°C.

Texas Instruments TMS320F28235ZJZS
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Technical specifications

TMS320F28235ZJZS specifications
Parameter / AttributeSpecification / Value
SeriesAutomotive, AEC-Q100, C2000™ C28x Delfino™
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.805V ~ 1.995V
Operating temperature-40°C~125°C(TA)
Speed150MHz
PackageTray
RAM size34K x 16
Core size32-Bit Single-Core
PeripheralsDMA, POR, PWM, WDT
ConnectivityCANbus, EBI/EMI, I²C, McBSP, SCI, SPI, UART/USART
Number of i (O)88
Core processorC28x
Case176-BGA
Data convertersA/D 16x12b
Program memory size512KB (256K x 16)

Technical details

At 150 MHz the C28x DSP core executes single-cycle MAC operations, which directly translates to tighter control loops in servo drives, inverter stages, and active rectifiers. The Flash wait states need to be configured correctly when the clock exceeds about 100 MHz — the part's internal PLL and flash controller handle this, but the firmware engineer should set the appropriate wait-state register during clock-tree initialisation to avoid a hard fault on the first branch.

The 1.805 V to 1.995 V core supply is tight — the board's power rail needs a clean 1.8 V or 1.9 V LDO with good transient response, not a generic 1.8 V switcher with 100 mV ripple.

The 176-BGA (15x15 mm) package is a 1.0 mm pitch part, which is hand-reworkable with a decent hot-air station and a stencil. The corner balls have no thermal via underneath, so the centre pad is the main heat path — a via stitch under the BGA is essential for both thermal and electrical performance.

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