C8051F965-A-GM

Overview

The C8051F965-A-GM is an 8-bit microcontroller from the Silicon Labs C8051F96x family, featuring a CIP-51 core with up to 128 kB Flash and 8 kB internal data RAM. It operates at frequencies up to 24.5 MHz and supports supply voltages from 1.8 V to 3.6 V. The device includes a 12-bit ADC with 16 channels, two comparators, an LCD controller supporting up to 128 segments, and a DC-DC buck converter. Communication interfaces include SMBus, dual SPI, and UART. It offers ultra-low power modes with sleep currents as low as 110 nA.

Feature Summary

• Integrated LCD controller with charge pump for contrast control
• Hardware acceleration via Data Packet Processing Engine including AES, DMA, and CRC
• Ultra-low power architecture with dynamic voltage scaling via DC-DC buck converter
• High-speed pipelined CIP-51 8051 compatible core

Applications

• Metering applications requiring sensor interface and pulse counting
• Wireless protocol acceleration using hardware encryption and encoding blocks
• Battery-powered devices utilizing low-power sleep modes and LCD displays

Procurement Notes

Verify the specific suffix 'GM' indicates the QFN package type when sourcing. Confirm the revision level matches the design requirements, as specifications are subject to change without notice. Ensure compatibility with the required operating temperature range of -40°C to +85°C. Cross-reference the manufacturer part number against official datasheets to avoid counterfeit components.

Selection Notes

Select this component for designs requiring integrated metering peripherals and high security features like hardware AES. Consider the available I/O count and memory size relative to application complexity. Evaluate the need for the DC-DC converter if dynamic voltage scaling is necessary for efficiency. Verify that the package dimensions fit the PCB layout constraints.

Part Context

This MCU belongs to the C8051F96x series, designed for ultra-low power consumption in battery-operated systems. It combines a standard 8051 instruction set with enhanced throughput and specialized analog peripherals. The family targets cost-sensitive applications needing robust connectivity and processing capabilities within a compact form factor.

Replacement Considerations

Consult the official datasheet for confirmed substitute part numbers within the same product line or family.