C8051T622-GMR

Overview

The C8051T622-GMR is an 8-bit microcontroller from Silicon Labs, part of the C8051T62x/3 family. It features a high-speed CIP-51 core operating at up to 48 MHz with 48 MIPS throughput. The device includes 16 kB of byte-programmable EPROM and 1280 bytes of internal data RAM. Key peripherals include a USB 2.0 full-speed controller with integrated transceiver, two enhanced UARTs, SPI, SMBus, four 16-bit timers, and a Programmable Counter Array. It operates on a supply voltage of 1.8 V to 5.25 V and is available in a QFN-24 package.

Feature Summary

• Integrated USB 2.0 full-speed controller with built-in clock recovery and transceiver, eliminating external components.
• High-performance CIP-51 core executing 70% of instructions in one or two system clocks for efficient processing.
• On-chip debug circuitry supports non-intrusive in-system debugging with breakpoints and memory inspection.
• Dual internal oscillators provide precise timing for USB operations and low-power standby modes.

Applications

• USB-enabled peripheral devices
• Industrial communication interfaces
• Consumer electronics with serial connectivity

Procurement Notes

Verify the specific suffix GMR indicates tape and reel packaging when sourcing. Confirm the device meets required temperature ranges for your application environment. Ensure programming tools are compatible with the C2 interface for EPROM configuration. Check for any recent product change notices regarding assembly or material composition updates.

Selection Notes

Select this component if a compact solution with native USB connectivity is required without external PHY chips. Consider the 16 kB EPROM capacity against application code size requirements. Evaluate the pin count in the QFN-24 package against I/O needs. Compare power consumption in suspend mode against battery life expectations.

Part Context

This MCU belongs to the C8051T series, which focuses on embedded applications requiring reliable 8-bit processing with mixed-signal capabilities. The T-series typically distinguishes itself through OTP/EPROM memory options compared to Flash-based counterparts. It serves as a bridge between simple 8-bit controllers and more complex 32-bit architectures for cost-sensitive designs.

Replacement Considerations

C8051T623-GM is a related variant within the same datasheet family. Verify pin compatibility and memory differences before substitution. Other C8051F series devices may offer similar functionality but differ in memory type and USB integration.