IWR6843, IWR6443
SWRS219D – OCTOBER 2018 – REVIIWSERD6S8E4P3T,EMIWBERR62404230
SWRS219D – OCTOBER 2018 – REVISED SEPTEMBER 2020
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IWR6843, IWR6443 Single-Chip 60- to 64-GHz mmWave Sensor
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Other interfaces available to user application
– Up to 6 ADC channels (low sample rate
monitoring)
1 Features
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FMCW transceiver
– Integrated PLL, transmitter, receiver, Baseband,
and A2D
– Up to 2 SPI ports
– Up to 2 UARTs
– 60- to 64-GHz coverage with 4-GHz continuous
bandwidth
– 1 CAN-FD interface
– I2C
– Four receive channels
– Three transmit channels
– Supports 6-bit phase shifter for TX Beam
forming
– Ultra-accurate chirp engine based on fractional-
N PLL
– GPIOs
– 2 lane LVDS interface for raw ADC data and
debug instrumentation
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Functional Safety-Compliant targeted
– Developed for functional safety applications
– Documentation will be available to aid IEC
61508 functional safety system design
– Hardware integrity up to SIL-2 targeted
– Safety-related certification
– TX power: 12 dBm
– RX noise figure:
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12 dB
– Phase noise at 1 MHz:
–93 dBc/Hz
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IEC 61508 certification by TUV Sud planned
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Non-Functional safety variants
Power management
– Built-in LDO network for enhanced PSRR
– I/Os support dual voltage 3.3 V/1.8 V
Clock source
– 40.0 MHz crystal with internal oscillator
– Supports external oscillator at 40 MHz
– Supports externally driven clock (square/sine)
at 40 MHz
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Built-in calibration and self-test
– ARM® Cortex®-R4F-based radio control system
– Built-in firmware (ROM)
– Self-calibrating system across frequency and
temperature
– Embedded self-monitoring with no host
processor involvement on Functional Safety-
Compliant targeted devices
C674x DSP for advanced signal processing
(IWR6843 only)
Hardware accelerator for FFT, filtering, and CFAR
processing
Memory compression
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Easy hardware design
– 0.65-mm pitch, 161-pin 10.4 mm × 10.4 mm flip
chip BGA package for easy assembly and low-
cost PCB design
– Small solution size
Operating conditions:
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ARM-R4F microcontroller for object detection, and
interface control
– Supports autonomous mode (loading user
application from QSPI flash memory)
Internal memory with ECC
– Junction temperature range of –40°C to 105°C
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– IWR6843: 1.75 MB, divided into MSS program
RAM (512 KB), MSS data RAM (192 KB), DSP
L1 RAM (64KB) and L2 RAM (256 KB), and L3
radar data cube RAM (768 KB)
– IWR6443: 1.4 MB, divided into MSS program
RAM (512 KB), MSS data RAM (192 KB), and
L3 radar data cube RAM (768 KB)
– Technical reference manual includes allowed
size modifications
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
Copyright © 2020 Texas Instruments Incorporated
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