Real-time wireless networking is finally possible.

SMULL (Synchronous Multi-node Ultra Low-Latency) technology is InPlay’s global patented technology that provides real-time wireless networking with millisecond latency for excellent reliability and robustness.

The technology enables and can scale up to 128 wirelessly connected network nodes while maintaining ultra-low communication latency over the 2.4GHz ISM frequency band. It enables true real-time communication for a variety of wireless networking applications such as AR/VR, collaborative robotics, and fieldbus cable replacement applications.

IN618 SMULL

The “Ultra-Low-Latency” Leader

SMULL significantly cuts down communication latency between multiple nodes in a star network. It is the only SoC that delivers true low latency in one-to-many wireless architectures.

Built-in Adaptive Frequency Hopping

The IN618 automatically monitors communication quality and dynamically adjusts to a new channel if SNR drops. This ensures consistent, high-quality information transmission.

Next Level Audio & Gaming

The IN618 is an ideal candidate for latency-critical applications in audio and gaming. Help your users experience next-level immersion with real-time wireless communication powered by SMULL.

Core Features

 

InPlay SMULL Protocol

  • InPlay proprietary synchronous multi-node communication protocol with ultra-low latency (over-the-air wireless packet travel time) through TDMA and FDMA mechanism

  • Bi-directional communication

  • Up to 128 nodes in a single network

  • Unicast/multi-cast/broadcast mode support

  • PHY rate configurable

  • User data payload configurable

  • Adaptive frequency hopping

  • Hierarchical network support

CPU & Memory

  • ARM Cortex-M4F up to 64MHz with 16KB i-cache

  • 256KB ROM (bootloader & SW stack)

  • Up to 96KB user SRAM

  • 4Kb eFuse memory (Manufacturer ID, Security Key storage)

  • 512KB Flash memory (Stacked, XIP mode support)

  • Over-The-Air Update (OTA) support

  • SWD/JTAG debug interface

Radio

  • 2.4GHz ISM band RF transceiver

  • Rx sensitivity –97.5 dBm @ 1Mbps

  • Rx sensitivity –94.5 dBm @ 2Mbps

  • Tx output 0dBm, 4.9mA, up to +3 dBm

  • Rx 5mA

  • MedRadio Band Support (2360MHz~2400MHz)

Peripheral

  • Up to 30 GPIOs

  • Two I2C, master/slave up to 1MHz clock

  • SPI master w/ up to 4 SPI slaves supported, up to 16MHz

  • SPI slave, up to 8MHz

  • Two UART up to 2MHz

  • Five dedicated PWMs, up to 13 PWM through I/O configuration

  • I2S master and 1 I2S slave, bi-directional stereo support

  • 2 PDM mono or 1 stereo with clock range from 160KHz – 5.12MHz

  • ISO7816

  • Keyboard scanner – up to 14x14 matrix

  • QDEC

  • 11-bit ADC, up to 64KSPS, up to 11 channels

  • 8 counters/timers

Clock Sources

  • 32MHz crystal, 32.768KHz RTC

DMA Controller

  • Up to 2 concurrent DMA streams with 2 channels each

Voice Engine

  • Build-in up to 64KHz sampling ADPCM codec, 4:1 compression ratio with 64Kbps mono, 128Kbps stereo for 16KHz sampling rate

  • Support PDM to PCM conversion

  • PDM or I2S as input

  • Sigma-delta audio DAC

Security

  • HW ECC, AES256, SHA-1, SHA-2

  • Secure Boot, Software copyright protection

  • True Random Number Generator (FIPS140-2 compliant)

Power mode

  • Deep Sleep mode 500nA with 32KHz RC ON

  • Shutdown mode <20nA

PMU

  • Integrated DCDC buck convertor

  • 1.7 - 3.6V input

Packaging

  • QFN48 6x6mm

Operating Temperature

  • -40 ~ +85 °C

 

Featured Videos

 
 

4 : 1 Wireless Microphone Streaming Demo

1 : 64 Wireless Real-time Moto Control System Demo

IN618 SMULL Data Sheet