When dealing with sensitive data for IoT applications, the BK7236 gives peace of mind with its secure, low power integrated platform. The BK7236 provide low-power solutions for a wide variety of connected solutions in the home.

 

This highly integrated chip provides developers with numerous peripherals and in a small package that can increase system capability, save PCB space, and accelerate time-to-market with a cohesive connectivity MCU.

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High-Performance Edge Compute

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The BK7236 integrates a powerful compute subsystem designed for advanced IoT applications:

 

• Arm v8-M STAR-MC1 running at up to 320 MHz

• Double-precision Floating-Point Unit (FPU) and DSP instructions with SIMD support

• Delivering 3.84 CoreMark/MHz for high-performance processing

• Up to 8 MB SiP Flash (16 MB external), up to 16 MB SiP PSRAM, and 640 KB Share SRAM

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Unified Connectivity and Wireless Performance

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The BK7236 combines advanced wireless technologies into a single integrated solution:

 

• Wi-Fi 6 IEEE 802.11b/g/n/ax 1x1 compliant 2.4 GHz with 20/40 MHz bandwidths.

• Dual-mode Bluetooth 5.4 compliant

• Supports Target Wake Time (TWT) for optimized battery life and 802.11mc for precise indoor positioning

• RX sensitivity of -98 dBm and TX power up to +21 dBm

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Graphics, Vision, and Multimedia Acceleration

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The BK7236 features a comprehensive multimedia pipeline for rich user experiences:

 

• Integrated H.264 video encoder (up to 720p @ 30 fps) and JPEG hardware encoder/decoder

• Segment LCD controller, 2D DMA (DMA2D) for graphical acceleration, and a Rotation Module (ROTT)

• 8-bit CIS DVP interface for CMOS image sensors

• Four-band digital hardware equalizer, dual audio ADCs, mono DAC, and a Digital Microphone Interface (DMIC)

   

Local-First Security and Privacy

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The BK7236 integrates a powerful security architecture to establish a top-secret execution environment:

 

• Embedded TrustZone and an IoT Platform Security Suite (IPSS)

• Hardware-accelerated cryptographic schemes (AES, RSA, ECC, SM2/3/4), key ladder for management, and a True Random Number Generator (TRNG)

• Support for secure boot, secure debug, FOTA, and provisioning

   

Extensive Peripheral Connectivity

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• High-Speed USB 2.0 (HS) controller with integrated transceiver

• SDIO Interface (v2.0 compliant) for external storage or host communication

• Dual SPI and Quad SPI (QSPI) interfaces

• Triple UART interfaces (one with hardware flow control)

• 12-bit AUX ADC with up to 9 external channels

• 14 Touch Sensor I/Os for capacitive sensing

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Example Applications

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• Secure smart home systems

• Smart appliances like refrigerators, air conditioners, washing machines, and robot cleaners

• Medical IoT

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Why BK7236?

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Traditional architectures required separate MCUs and wireless chips. The BK7236 consolidates these into a single hub with extensive peripherals, allowing developers to eliminate hardware complexity and focus on building intelligent, responsive experiences for the next generation of low power IoT terminals.