Texas Instruments AWR1642ABISABLQ1

Overview

AWR1642ABISABLQ1 from Texas Instruments is a single-chip 76–81 GHz FMCW radar sensor IC integrating RF transceiver, C674x DSP, ARM Cortex-R4F microcontroller, 1.5 MB on-chip memory, and CAN-FD interface. It delivers 12 dBm TX power, 14–15 dB RX noise figure, and ultra-accurate chirp timing for automotive radar applications including blind spot detection and parking assistance.

For engineers reviewing the AWR1642ABISABLQ1 datasheet, AWR1642ABISABLQ1 pinout, AWR1642ABISABLQ1 application, or AWR1642ABISABLQ1 equivalent, this page provides verified technical context, validated pin functions, functional safety (ASIL-B) compliance, RF performance specs, and real-world deployment guidance for automotive ADAS sensor design.

Technical Context

The AWR1642ABISABLQ1 implements a monolithic 2TX/4RX FMCW radar front end using TI's 45 nm RFCMOS process, with integrated fractional-N PLL for sub-microsecond chirp timing accuracy and dual-band RF performance (76–77 GHz and 77–81 GHz). Its baseband architecture supports complex IF sampling at up to 12.5 Msps (complex 1×), decimation filtering, and embedded interference detection without host intervention.

It combines three processing domains: a 600 MHz C674x DSP for FFT-based signal processing, a 200 MHz ARM Cortex-R4F subsystem for radio control and object tracking, and hardware accelerators for cryptographic operations (AES-256, SHA-256, PKA) and safety monitoring. All subsystems operate within –40°C to 125°C junction temperature range and support AUTOSAR-compliant software deployment.

Key Specifications

Pinout & Package

AWR1642ABISABLQ1 uses a 161-pin flip-chip BGA (FCBGA) package, designated ABL, with 0.65 mm pitch and 10.4 mm × 10.4 mm body size. The package supports automated assembly and thermal management via exposed die attach pad.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar FMCW radar sensor applications.

Compared with AWR1642ABISABLQ1, the AWR1843ABGABLQ1 offers greater raw data throughput and extended range capability, while the AWR2944ABGABLQ1 adds hardened security and tighter RF stability - both retain identical ABL package footprint and core software compatibility but require updated driver stacks and calibration workflows.

Availability

AWR1642ABISABLQ1 is available at Aetrix Electronics and suitable for automotive ADAS systems, industrial occupancy sensing, and gesture recognition platforms requiring stable component supply, AEC-Q100 qualification, and ISO 26262 ASIL-B compliance.

Supply support for AWR1642ABISABLQ1 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 leader specializing in analog, embedded processing, and wireless connectivity technologies, with deep expertise in automotive radar and functional safety systems.

The AWR1642ABISABLQ1 belongs to TI's mmWave sensor product line, designed specifically for cost-sensitive, self-contained automotive radar applications requiring high integration, low power, and robust environmental operation.

FAQ

What is the primary function of the AWR1642ABISABLQ1 in automotive radar systems?

The AWR1642ABISABLQ1 serves as a fully integrated 76–81 GHz FMCW radar sensor IC, combining RF transceiver, C674x DSP, ARM Cortex-R4F microcontroller, and CAN-FD interface into a single chip. It performs real-time radar signal acquisition, FFT-based processing, object detection, and classification - eliminating need for external processors or RF front-end components in compact ADAS modules.

Does the AWR1642ABISABLQ1 support functional safety certification for automotive use?

Yes, the AWR1642ABISABLQ1 is ISO 26262 certified up to ASIL-B by TÜV SÜD and AEC-Q100 qualified. It includes hardware safety features such as lockstep CPU monitoring, ECC on all on-chip memories, and built-in diagnostic firmware - enabling its use in safety-critical radar ECU designs without requiring additional safety controllers.

How does the AWR1642ABISABLQ1 handle radar calibration across temperature and process variation?

The AWR1642ABISABLQ1 implements an embedded self-calibration system that runs automatically at startup and periodically during operation. It compensates for RF gain, phase, and DC offset drift using on-chip temperature sensors and factory-trimmed coefficients stored in ROM - maintaining <±0.5° phase accuracy and <±1 dB gain stability from –40°C to +125°C junction temperature.

Can the AWR1642ABISABLQ1 operate autonomously without an external host processor?

Yes, the AWR1642ABISABLQ1 supports autonomous mode via its integrated bootloader and QSPI flash interface. User applications can be loaded directly from external serial flash memory, allowing full radar stack execution - including signal processing, object tracking, and CAN-FD reporting - without dependency on an external MCU or host processor.

What interfaces does the AWR1642ABISABLQ1 provide for connecting to vehicle networks and peripherals?

The AWR1642ABISABLQ1 provides CAN-FD (5 Mbps) and DCAN interfaces for automotive network communication, two SPI channels, two UARTs, I²C, six GPADC inputs, GPIOs, and a 2-lane LVDS debug interface. Its CAN-FD interface is used for configuration, diagnostics, and object list reporting to vehicle ECUs, while QSPI enables firmware storage and autonomous boot.