Texas Instruments F2800156QRHBRQ1

Overview

F2800156QRHBRQ1 from Texas Instruments is an automotive-grade real-time microcontroller with dual 32-bit C28x CPUs in lockstep, operating at 100 MHz, featuring 256KB flash, 36KB ECC/parity-protected RAM, and functional safety certification to ASIL B (TÜV SÜD). It integrates two 4-MSPS 12-bit ADCs, 14 ePWM channels (4 with 150-ps resolution), one CAN FD/MCAN port, and one CAN port-designed for motor control in DC/DC converters and inverter systems.

For engineers reviewing the F2800156QRHBRQ1 datasheet, F2800156QRHBRQ1 pinout, F2800156QRHBRQ1 application, or F2800156QRHBRQ1 equivalent, key selection criteria include its AEC-Q100 Grade 1 qualification, 100-MHz deterministic real-time performance, dual-core lockstep architecture for fault containment, and support for high-resolution PWM-driven power stage control in safety-critical automotive power electronics.

Technical Context

The F2800156QRHBRQ1 implements a dual-C28x CPU lockstep architecture with IEEE 754 FPU and Trigonometric Math Unit (TMU) acceleration, enabling deterministic execution of complex control algorithms. Its memory subsystem includes 256KB ECC-protected flash and 36KB RAM with parity/ECC protection, coupled with DCSM-based dual-zone security and JTAGLOCK.

System-level timing relies on dual internal 10-MHz oscillators, crystal/external clock input, and windowed watchdog with missing-clock detection. Analog integration includes two synchronized 12-bit ADCs (4 MSPS), four post-processing blocks per ADC, one full CMPSS with 12-bit DAC, and three CMPSS_LITE modules-tightly coupled to ePWM for fast closed-loop response.

Key Specifications

Pinout & Package

Package: 32-pin Very Thin Quad Flatpack No-Lead (VQFN), 5 mm × 5 mm body size, thermally enhanced with exposed pad for power dissipation in compact automotive modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F2800157-Q1, F2800156QRHBRQ1 trades 20 MHz CPU speed and full CMPSS for lower cost and identical 256KB flash; versus F2800155-Q1, it adds 12KB RAM and retains full analog subsystem capability-making it optimal for mid-tier automotive power modules needing robust fault handling without premium frequency.

Availability

F2800156QRHBRQ1 is available at Aetrix Electronics and suitable for automotive power electronics, industrial motor drives, and DC/DC converter designs requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant traceability.

Supply support for F2800156QRHBRQ1 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, power management, and automotive electronics.

The TMS320F280015x product line is designed for cost-optimized, ultra-low-latency real-time control in power electronics-including inverters, motor drives, and digital power supplies-with functional safety built into silicon and toolchain.

FAQ

What is the maximum operating frequency of the F2800156QRHBRQ1?

The F2800156QRHBRQ1 operates at a maximum CPU frequency of 100 MHz. This is confirmed in the Device Information table and supported by its PLL configuration and timing specifications. The 100-MHz clock enables deterministic execution of control loops with sub-microsecond latency, making F2800156QRHBRQ1 suitable for high-speed SiC/GaN-based power stages. All timing-critical peripherals-including ePWM, ADC, and CMPSS-are synchronized to this clock domain.

Does the F2800156QRHBRQ1 support CAN FD communication?

Yes, the F2800156QRHBRQ1 includes one Controller Area Network with Flexible Data-Rate (CAN FD/MCAN) port, as specified in the "Communications peripherals" section and verified in Table 4-1. This interface supports data rates up to 5 Mbps and payloads up to 64 bytes, enabling high-bandwidth firmware updates and diagnostic messaging in modern automotive networks-distinct from its separate legacy CAN port.

What package type is used for the F2800156QRHBRQ1?

The F2800156QRHBRQ1 uses the 32-pin Very Thin Quad Flatpack No-Lead (VQFN) package, designated by the RHB suffix. Its mechanical dimensions are 5 mm × 5 mm with an exposed thermal pad, optimized for compact automotive modules requiring efficient heat dissipation. This package is explicitly listed in the Package Information table and Device Comparison section for F2800156-Q1 variants.

Is the F2800156QRHBRQ1 certified for automotive functional safety standards?

Yes, the F2800156QRHBRQ1 is ISO 26262 certified up to ASIL B by TÜV SÜD and IEC 61508 certified up to SIL 2. These certifications apply specifically to the Q1 (Grade 1) variant and are documented in the "Functional Safety-Compliant" and "Safety-related certification" sections. The device includes hardware safety mechanisms such as lockstep CPU execution, memory ECC, and windowed watchdog timers to meet these requirements.

How much on-chip flash and RAM does the F2800156QRHBRQ1 provide?

The F2800156QRHBRQ1 provides 256 KB of single-bank flash memory with ECC protection and 36 KB of on-chip RAM-comprising 4 KB M0/M1 RAM and 32 KB LS0/LS1 RAM-both protected with ECC or parity. These values are confirmed in the Device Information table and "On-chip memory" feature list. The memory architecture supports secure boot, dual-zone code isolation, and runtime integrity checking essential for automotive applications.