## Technical Overview: ADM8614Y263ACBZ-R7 The **ADM8614Y263ACBZ-R7** is a high-precision, ultra-low power supervisory circuit (voltage monitor) manufactured by **Analog Devices (ADI)**. It is designed to monitor system voltages and provide a reset signal to processors or controllers when the voltage falls below a specific threshold. ### 1. Key Specifications The following table summarizes the primary electrical and mechanical characteristics: | Parameter | Specification | | :--- | :--- | | **Function** | Voltage Supervisor / Reset IC | | **Threshold Voltage ($V_{TH}$)** | 2.63V | | **Supply Current ($I_{CC}$)** | 190 nA (Typical) | | **Output Type** | Active-Low, Open-Drain | | **Reset Timeout** | 200 ms (Typical) | | **Package Type** | 4-Ball WLCSP (Wafer Level Chip Scale Package) | | **Operating Temperature** | -40°C to +85°C | | **Manual Reset (MR)** | Yes (Logic Input) | --- ### 2. Functional Description The device performs three critical roles in an electronic system: 1. **Under-voltage Monitoring:** It monitors the power supply rail. If the voltage drops below **2.63V**, the device pulls the RESET pin low to prevent the processor from executing corrupted instructions. 2. **Power-On Reset (POR):** When the system is first turned on, it holds the reset signal for **200ms** after the voltage reaches the threshold to ensure the power supply has stabilized. 3. **Manual Reset (MR) Input:** It allows a physical button or a secondary logic signal to trigger a system reset independently of the voltage level. --- ### 3. Application Use Cases Due to its extremely low power consumption (**190 nA**), this part is ideal for battery-operated devices where energy efficiency is the highest priority: * **Wearables:** Smartwatches and fitness trackers. * **IoT Sensors:** Remote sensors that must run for years on a single coin-cell battery. * **Portable Medical Devices:** Handheld diagnostic tools. * **Mobile Handsets:** General system monitoring and power sequencing. --- ### 4. Part Number Breakdown Understanding the nomenclature helps in identifying variants: * **ADM8614**: Device family (Ultra-low power supervisor). * **Y**: Accuracy/Temperature grade. * **263**: Threshold voltage (2.63V). * **ACBZ**: Package code (WLCSP). * **R7**: Reel size (7-inch reel). ---