C8051T320-GQ

Overview

The C8051T320-GQ is a high-speed 8-bit microcontroller featuring an EPROM code memory architecture and integrated full-speed USB 2.0 functionality. It utilizes the CIP-51 core, delivering up to 48 MIPS throughput at a 48 MHz clock frequency. The device includes up to 64 kB of byte-programmable EPROM and up to 3328 bytes of internal data RAM. Key peripherals include a 10-bit ADC with up to 500 ksps sampling rate, two comparators, four general-purpose 16-bit timers, and a 16-bit Programmable Counter Array (PCA). It operates on a supply voltage range of 1.8 V to 5.25 V and supports temperatures from -40 °C to +85 °C.

Feature Summary

• Integrated full-speed USB 2.0 function controller with transceiver and clock recovery
• High-performance pipelined 8051 core executing instructions in one or two system clocks
• On-chip debug circuitry supporting non-intrusive in-system debugging
• Flexible digital crossbar allowing configurable port I/O assignment

Applications

• USB-enabled embedded systems requiring direct connectivity
• Industrial control applications needing robust analog signal processing
• Portable instrumentation utilizing low-power operation modes
• Data acquisition systems integrating multi-channel ADC inputs

Procurement Notes

Verify component authenticity through authorized Silicon Labs distributors. Confirm package type matches design requirements, as options include QFN and LQFP variants. Ensure development tools support the specific C8051T series architecture for firmware programming. Check current lifecycle status as this family may be designated Not Recommended for New Designs.

Selection Notes

Select this model when EPROM reprogrammability is required over Flash-based alternatives. Consider the integrated USB controller if external bridge chips are undesirable. Evaluate pin count and peripheral availability against project constraints. Verify that the operating voltage range aligns with the target system power supply specifications.

Part Context

This component belongs to the C8051T620/1/6/7 & C8051T320/1/2/3 family of mixed-signal microcontrollers. It shares architectural similarities with the C8051F series but distinguishes itself through EPROM technology and enhanced USB integration. The device represents a highly integrated solution combining analog, digital, and communication interfaces on a single chip.

Replacement Considerations

Silicon Labs recommends alternative devices for new designs due to the 'Not Recommended for New Designs' status. Consult official documentation for current compatible replacements within the EFM8 or newer C8051 families.