Overview
The ADM8614Y263ACBZ-R7 is a voltage supervisory circuit manufactured by Analog Devices Inc. This device is part of the ADM8611 to ADM8615 family, designed to monitor power supply voltage levels and ensure code execution integrity in microprocessor-based systems. It features an on-chip watchdog timer and manual reset capabilities, making it suitable for power efficiency sensitive systems such as battery-powered portable devices and energy meters.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Temperature Range | −40°C to +85°C |
| Storage Temperature Range | −40°C to +150°C |
| Package Type | 6-Ball WLCSP (1x1.5) |
| Input Threshold High | 0.9 V |
| Input Threshold Low | 0.4 V |
| WDI Pulse Width High | 85 ns |
| WDI Pulse Width Low | 300 ns |
| WDI Glitch Rejection | 60 ns |
| RESET Output Voltage Low | 0.4 V (VCC > 4.25 V, ISINK = 6.5 mA) |
| Leakage Current | 5 nA (VWDI = VCC = 5.5 V) |
| Watchdog Timeout Period | Typical 1.6 sec (WD_SEL low), 100 sec (WD_SEL high) |
Key Features
- Ultralow power consumption, making it suitable for power efficiency sensitive systems.
- On-chip watchdog timer to reset the microprocessor if it fails to strobe within a preset timeout period.
- Manual reset input (MR) for external push-button reset.
- Separate supply input for monitoring different voltage levels.
- Watchdog disable input (WD_DIS) and watchdog timeout selection input (WDT_SEL).
- Pretrimmed voltage monitoring threshold options.
Applications
The ADM8614Y263ACBZ-R7 is ideal for use in various applications, including:
- Battery-powered portable devices.
- Energy meters.
- Microprocessor-based systems requiring power-on reset and watchdog functionality.
- Systems needing low voltage monitoring and reset capabilities.
Q & A
- What is the primary function of the ADM8614Y263ACBZ-R7? The primary function is to monitor power supply voltage levels and ensure code execution integrity in microprocessor-based systems.
- What is the operating temperature range of the ADM8614Y263ACBZ-R7? The operating temperature range is −40°C to +85°C.
- What type of package does the ADM8614Y263ACBZ-R7 come in? It comes in a 6-Ball WLCSP (1x1.5) package.
- How does the watchdog timer function in the ADM8614Y263ACBZ-R7? The watchdog timer resets the microprocessor if it fails to strobe within a preset timeout period, which can be extended using the WDT_SEL input.
- Can the watchdog function be disabled? Yes, the watchdog function can be disabled by tying the WD_DIS pin high.
- What is the typical watchdog timeout period? The typical watchdog timeout period is 1.6 seconds (WD_SEL low) and 100 seconds (WD_SEL high).
- What is the input threshold voltage for the ADM8614Y263ACBZ-R7? The input threshold high is 0.9 V and the input threshold low is 0.4 V.
- How does the manual reset input work? The manual reset input (MR) allows for an external push-button to assert a reset signal.
- What are some typical applications for the ADM8614Y263ACBZ-R7? Typical applications include battery-powered portable devices, energy meters, and microprocessor-based systems requiring power-on reset and watchdog functionality.
- What is the leakage current of the ADM8614Y263ACBZ-R7? The leakage current is 5 nA when VWDI = VCC = 5.5 V.
