Mixed signal MCUs ease USB integration - Embedded.com

Mixed signal MCUs ease USB integration

The C8051F38x and C8051T62x/32x USB MCU families from Silicon Laboratories Inc. are designed to simplify the addition of USB connectivity to embedded designs. The families, which include 22 products with flash and one-time-programmable (OTP) options, feature a full-speed USB 2.0 interface engine.

They are suitable for applications such as home automation systems, thermostats, USB dongles, smart card readers, GPS localizers, touch panels, sensor data loggers, portable medical devices, weigh scales, USB speakers, serial communication bridges, games and electronic toys.

The C8051F38x MCU family's analog/mixed-signal capabilities enable developers to implement USB connectivity and the flash-based F38x devices are pin- and code-compatible with Silicon Labs' existing C8051F34x USB MCUs to ease migration while offering an additional I2C interface, a higher performance analog-to-digital converter (ADC), and additional timers.

The F38x and T62x/32x families include USB MCUs feature an ADC that enables high precision measurements, eliminating the cost of using external ADCs.

Silicon Labs' USB MCU development ecosystem includes USBXpress software, code examples and USB development kits that reduce cost and development time. The C8051F380DK development kit enables real-time code development and evaluation of the C8051F38x family. The C8051T620DK and C8051T622DK kits enable real-time code development and evaluation of the C8051T62x/32x family. The TOOLSTICK381DC daughter card provides a simple, economical development tool that allows designers to develop and debug application firmware directly on a target USB MCU.

Samples and production quantities of the C8051F38x and C8051T62x/32x USB MCUs are available in 4 mm x 4 mm and 5 mm x 5 mm QFN packages. Pricing begins at $2.12 in 10,000-unit quantities for the F38x flash-based devices and $1.07 for the T62/32x OTP MCUs. The C8051F380DK development kit is available for $99, and the C8051T620DK and C8051T622DK kits are both priced at $129. The TOOLSTICK381DC daughter card is available for $9.90.

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