RTC 01

The Ambiq® real-time clock is the industry leader in power management, functioning as an extremely low power "keep-alive" source for the system and bypassing the need for the main MCU to power down the device to conserve power. It monitors the system while the components are powered off for a user-configurable power-up event while consuming only nanoamps of power.
Glossary
Features 02

Proprietary Calibration Algorithm

3 Distinct Feature Groups

Reduce Sleep Current
Low Power Requirements
Supports Multiple Modes
CMOS Platform
Companion for Host Processors
Highlighted Products 03
RTC Products Overview 04
| ||||
---|---|---|---|---|
AM0805 | AM0815 | AM1805 | AM1815 | |
Ultra-Low Supply Current | < 14nA with RC oscillator | < 14nA with RC oscillator | < 14nA with RC oscillator | < 14nA with RC oscillator |
Baseline Timekeeping | ||||
Crystal (XT) Oscillator | ||||
Number of GP Outputs | 4 | 3 | 4 | 3 |
Advanced Timekeeping | ||||
RC Oscillator | ||||
Calibration/Auto-calibration | ||||
Watchdog timer (WDT) | ||||
RAM (Bytes) | 256 | 256 | 256 | 256 |
Enhanced I/O and Power Management | ||||
VBAT Switch | ||||
External Interrupts | ||||
Reset Management | - | - | ||
Power Switch and Sleep Finite State Machine (FSM) | - | - | ||
Programmable Charging Current | - | - | ||
Interface | I2C up to 400kHz | 3/4-wire SPI up to 2MHZ | I2C up to 400kHz | 3/4-wire SPI up to 2MHZ |
Wide Operating Range | ||||
Operating Voltage | 1.5-3.6V | 1.5-3.6V | 1.5-3.6V | 1.5-3.6V |
Operating Temperature | -40°C to 85°C | -40°C to 85°C | -40°C to 85°C | -40°C to 85°C |
Package Option | 3 mm x 3 mm 16-pin QFN package | 3 mm x 3 mm 16-pin QFN package | 3 mm x 3 mm 16-pin QFN package (also available in wafer form) | 3 mm x 3 mm 16-pin QFN package (also available in wafer form) |
Ordering Information | • AM0805AQ | • AM0815AQ | • AM1805AQ | • AM1815AQ |

Where To Buy 05
KAGA FEI Co., Ltd
IIDA ELECTRONICS (TSUSHO) Co., Ltd
IID A ELECTRONICS(TSUSHO) Co., Ltd
KAGA FEI ELECTRONICS PACIFIC ASIA LIMITED Singapore Branch
KAGA FEI ELECTRONICS PACIFIC ASIA LIMITED
Direct Sales
Direct Sales
TOP-electronics USA