Marvell 88EM8189 LED driver chip. Free Technical Library News

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Marvell 88EM8189 LED driver IC

14.04.2014

Marvell introduced the Marvell 88EM8189 LED driver chip, which integrates a voltage converter and an I2C interface, which allows microcontroller control of lighting with the ability to adjust the brightness from 1% to 100%.

According to the manufacturer, the presence of a built-in converter helps to reduce the number of components and provide power to the chip responsible for the network connection. This approach gives the minimum power consumption of the "smart" lamp with wireless control in standby mode.

The Marvell 88EM8189 chip is part of the Marvell Smart Lighting Platform, which includes the 88MZ100 ZigBee MCU and the 88MC200 Wi-Fi MCU, which also acts as a ZigBee-to-Wi-Fi bridge. The platform fully supports the open protocols ZigBee Home Automation (ZHA) and ZigBee Light Link (ZLL), while being accessible from mobile devices via Wi-Fi.

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Intel NNP-T processor 21.08.2019

Intel introduced the NNP-T (Nervana Neural Network Processor for Training), a large machine learning processor.

The area of the NNP-T crystal is 688 mm2, the number of transistors is 27 billion! The processor configuration includes 24 Tensor Cores with performance up to 119 TOPS (at 1,1 GHz), 60 MB of distributed memory and 32 GB of HBM2 flash memory (individual dies). The processor is manufactured using the 16nm CLN16FF+ process technology at TSMC.

32 GB of HBM2 memory is presented in four stacks with a bandwidth of 2,4 GB / s for each. Together with these chips, the processor already occupies 1200 mm2. The TSWC CoWoS (Chip-on-Wafer-on-Substrate) bus is responsible for connecting the process to memory. The result is a 60 x 60 mm BGA package with 3325 pins.

The power consumption of the NNP-T ranges from 150 to 250 W when air-cooled. Later versions with a large TDP, designed for liquid CO, should appear.

By the end of the year, Intel intends to provide samples of NNP-T to leading customers, with a focus on Tier 2020 cloud service providers. In XNUMX, NNP-T will be available to the general market.

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