C8051T327-GM

Overview

The C8051T327-GM is an 8-bit microcontroller from Silicon Labs, part of the C8051T326/7 family. It features a high-speed CIP-51 core operating at up to 48 MHz with 48 MIPS throughput. The device integrates 16 KB of byte-programmable EPROM and 1280 bytes of internal data RAM. Key peripherals include a full-speed USB 2.0 function controller with integrated transceiver and clock recovery, two enhanced UARTs, hardware-enhanced SPI, SMBus, four 16-bit timers, and a 16-bit Programmable Counter Array. It operates on a supply voltage of 1.8 V to 5.25 V and is available in a 28-pin QFN package.

Feature Summary

• Integrates a full-speed USB 2.0 function controller with an on-chip transceiver and clock recovery, eliminating the need for external components.
• Features a high-speed pipelined CIP-51 8051-compatible core capable of executing 70% of instructions in one or two system clocks.
• Includes flexible digital I/O with a priority crossbar decoder for configurable pin assignments and multiple serial communication interfaces.

Applications

• USB-enabled embedded systems requiring direct connectivity
• Data acquisition devices utilizing serial communication protocols
• Industrial control applications needing robust I/O configuration

Procurement Notes

Verify the specific suffix 'GM' corresponds to the 28-pin QFN package and industrial temperature range as documented in the official datasheet. Confirm that the EPROM memory type aligns with your programming infrastructure requirements, as it differs from Flash-based alternatives in the same family. Ensure compatibility with the C2 debug interface for development.

Selection Notes

Select this component when a fully integrated USB solution without external PHY components is required. The wide supply voltage range supports both bus-powered and self-powered designs. Consider the 16 KB EPROM capacity and 1280 bytes RAM against application memory needs. The presence of multiple timers and PCA modules makes it suitable for precise timing and PWM generation tasks.

Part Context

This device belongs to the C8051T32x series, which shares architectural similarities with the C8051F32x series but utilizes EPROM instead of Flash memory. It is designed for applications requiring non-volatile code storage with in-system programmability. The family emphasizes high integration by combining analog and digital peripherals on a single chip.

Replacement Considerations

C8051T326-GM: Offers identical architecture and peripherals but with 8 KB of EPROM memory instead of 16 KB. Verify if the reduced program memory meets application requirements before substituting.