Integrated Bluetooth Low Energy Module |
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RF sensitivity: -93 dBm (typical) |
Ultra-Low Power Memory |
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Up to 1MB of flash memory for code/data |
Up to 384KB of low power RAM for code/data |
16KB 2-way Associative/Direct-Mapped Cache |
Ultra-Low Power Interface for On- and Off-Chip Sensors |
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14-bit ADC, 15 selectable input channels available |
Up to 2.67 MS/s sampling rate |
Voltage Comparator (VCOMP) |
Temperature sensor with ±3°C accuracy after calibration |
Ultra-Low Power Flexible Serial Peripherals |
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ISO7816 Secure interface |
1x 2/4/8-bit SPI master interface (MSPI) |
6x I2C/SPI masters for peripheral communication |
1x I2C/SPI slave for host communications |
2x UART modules with 32-location Tx and Rx FIFOs |
PDM for mono and stereo audio microphones |
1x 12S slave for PDM audio pass-through |
Rich Set of Clock Sources |
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32.768 kHz Crystal (XTAL) oscillator |
Low Frequency RC (LFRC) oscillator (1.024 kHz) |
High Frequency RC (HFRC) oscillator (48 MHz) |
RTC based on Ambiq’s AM08X5/18X5 family |
Wide Operating Range |
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1.755-3.63 V, -40°C to 85°C |
Applications |
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Voice-on-SPOT compatible for always-listening keyword
detect, audio command recognition and voice assistant
integration in battery-powered devices including: |
Wearables including smart watches and fitness/activity trackers |
Hearing aids, Digital Health Monitoring and Sensing Devices |
Smart Home Automation, Security and Lighting control applications |
Package Options |
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5 mm x 5 mm, 81-pin BGA with 50 GPIO |
3.25 mm x 3.37 mm, 66-pin WLCSP with 37 GPIO |
Ordering Information |
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AMA3B1KK-KBR-B0 (384KB, 81-pin BGA) |
AMA3B1KK-KCR-B0 (384KB, 66-pin WLCSP) |
AMAP31KK-KCR (non-Bluetooth Low Energy, 384KB, 66-pin WLCSP) |
AMA3BEVB (EVB) |