C8051F969-A-GM

Overview

The C8051F969-A-GM is an 8-bit microcontroller from the Silicon Labs C8051F96x family, featuring a CIP-51 core and up to 128 kB of in-system programmable Flash memory. It includes up to 8 kB of internal data RAM and operates within a voltage range of 1.8 V to 3.6 V. The device integrates a 12-bit ADC with up to 16 channels, two low-current comparators, and an LCD controller supporting up to 128 segments. Digital peripherals include SMBus, dual SPI, UART, and four general-purpose timers. It supports multiple clock sources, including precision internal oscillators and SmaRTClock, and offers ultra-low power modes with sleep currents as low as 110 nA.

Feature Summary

• Ultra-low power architecture with DC-DC buck converter for dynamic voltage scaling and deep sleep current retention
• Integrated LCD controller with charge pump for contrast control, supporting static displays with minimal power consumption
• Hardware acceleration engine combining AES encryption, DMA, CRC, and encoding blocks for protocol processing
• High-speed pipelined CIP-51 8051 core executing majority of instructions in one or two system clocks

Applications

• Battery-powered metering devices requiring low standby current
• Applications utilizing segmented LCD displays for user interfaces
• Wireless sensor nodes requiring hardware-accelerated security protocols
• Systems needing high-resolution analog signal acquisition with integrated temperature sensing

Procurement Notes

Verify the specific suffix and revision against the official datasheet to ensure compatibility with required package types and operating temperatures. Confirm that the ordering information matches the exact memory configuration and peripheral set needed for the design. Check for any recent product change notices regarding manufacturing updates or end-of-life status before finalizing procurement plans.

Selection Notes

Select this component when designing systems that demand simultaneous low-power operation and complex peripheral integration such as LCD driving and cryptographic acceleration. Evaluate the available I/O count and ADC channel requirements against the specific pinout options offered by the QFN or TQFP packages. Ensure the external circuitry supports the required clock sources and voltage references for optimal performance across the specified temperature range.

Part Context

This part belongs to the C8051F96x series, which focuses on ultra-low power consumption and specialized peripherals for metering and display applications. The family shares a common core architecture but varies in memory size, package type, and specific peripheral configurations. The C8051F969 variant represents a specific configuration within this lineup, tailored for designs requiring substantial Flash memory and robust analog capabilities.

Replacement Considerations

Consult the manufacturer's documentation for direct cross-references within the C8051F96x family. Verify pin-to-pin compatibility if substituting with other members of the series. Ensure that any alternative component maintains support for the required LCD segments, ADC resolution, and low-power sleep modes.