C8051T622-GM

Overview

The C8051T622-GM is an 8-bit microcontroller featuring a high-speed CIP-51 core with up to 48 MIPS throughput at a 48 MHz clock. It integrates a USB 2.0 full-speed function controller with an on-chip transceiver and clock recovery, eliminating the need for external components. The device includes 16 kB of byte-programmable EPROM code memory and 1280 bytes of internal data RAM. Digital peripherals consist of two enhanced UARTs, hardware-enhanced SPI, SMBus, four 16-bit timers, and a 16-bit Programmable Counter Array (PCA). It operates within a supply voltage range of 1.8 V to 5.25 V and supports temperatures from –40 °C to +85 °C.

Feature Summary

• Integrated USB 2.0 full-speed controller with built-in transceiver and clock recovery
• High-performance pipelined 8051 core executing up to 70% of instructions in one or two clocks
• On-chip debug circuitry supporting non-intrusive in-system debugging
• Flexible clocking system with dual internal oscillators and on-the-fly switching capability

Applications

• Embedded USB connectivity implementations
• In-system code development platforms
• Low-power applications utilizing flexible clock sources

Procurement Notes

Verify the specific package variant against the datasheet, as the family utilizes both QFN-24 and QFN-28 options. Confirm that the ordering suffix aligns with the required pin count and thermal characteristics. Ensure compatibility with the C2 interface for programming and debugging during integration.

Selection Notes

Select this component when a standalone USB solution without external resistors or crystals is required. The integrated precision internal oscillator simplifies design by removing external clock components. Consider the available EPROM capacity and RAM size relative to application firmware requirements before finalizing the selection.

Part Context

This part belongs to the C8051T62x/3 and C8051T32x/7 USB Function Controller family from Silicon Labs. These devices are designed to provide a complete single-chip solution for embedded USB applications, combining a powerful 8051 processor with robust analog and digital peripherals.

Replacement Considerations

The C8051T623-GM serves as a direct substitute within the same family, sharing identical functional specifications and peripheral sets.