AMA3B1KK-KCR-B0

Overview

The AMA3B1KK-KCR-B0 is an ARM® Cortex®-M4F System on Chip (SoC) from the Apollo3 Blue series by Ambiq Micro, Inc. It operates at a maximum frequency of 96MHz and integrates 1MB of flash memory with 384KB of RAM. The device is housed in a 66-WLCSP package measuring 3.38x3.25mm. It supports I2C, SPI, and UART/USART interfaces and includes peripherals such as DMA, I2S, PWM, WDT, POR, and brown-out detection/reset. The operating temperature range is -40°C to 85°C.

Feature Summary

• Ultra-low power architecture based on patented Subthreshold Parametric Optimization (SPOT) technology for energy efficiency.
• Integrated Bluetooth Low Energy connectivity suitable for wireless sensor applications.
• Includes secure boot capabilities and hardware security features for data integrity.

Applications

• Battery-powered wearable devices
• Wireless sensor nodes
• Smart home IoT endpoints

Procurement Notes

Verify the specific suffix B0 against the official datasheet to confirm pinout and electrical characteristics match the design requirements. Ensure the 66-WLCSP footprint dimensions align with the PCB layout. Confirm RoHS3 compliance status if required by regional regulations. Check moisture sensitivity level handling procedures during assembly.

Selection Notes

Select this component when a balance of moderate processing speed and low power consumption is needed for Bluetooth-enabled applications. Compare flash size against application firmware requirements. Consider the WLCSP package size constraints relative to other Apollo3 variants. Verify peripheral availability such as I2S or DMA needs against the specific model configuration.

Part Context

This part belongs to the Apollo3 Blue family, designed for ultra-low power wireless applications. It shares the core M4F processor with other Apollo3 models but differs in memory size and package options. It is distinct from the Apollo4 series which offers higher performance and different RF capabilities.

Replacement Considerations

Direct substitutes within the same package include other Apollo3 Blue variants with compatible pinouts. Verify memory configurations and temperature ranges when considering cross-model replacements. Consult the Apollo SoC Selector Guide for detailed compatibility matrices.