Overview
The ADM1232ARNZ-REEL7, produced by Analog Devices Inc., is a microprocessor supervisory circuit designed to provide essential reset and power-on reset functions for microprocessor-based systems. This integrated circuit (IC) is engineered to monitor the microprocessor supply voltage, detect if the microprocessor has locked up, and respond to external interrupts. It is available in several package options, including the 8-lead narrow SOIC (R-8) package for the ADM1232ARNZ-REEL7 model.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Manufacturer Part Number | ADM1232ARNZ-REEL7 | ||
| Package | 8-lead narrow SOIC (R-8) | ||
| Mounting Type | Surface Mount | ||
| Operating Temperature | -40°C to 85°C | °C | |
| Reset Timeout | 250 ms (minimum) | ms | |
| Voltage Threshold | Adjustable/Selectable (5% or 10% tolerance) | ||
| Number of Voltages Monitored | 1 | ||
| Reset Output | Open Drain, Push-Pull | ||
| Reset Signal | Active High/Active Low | ||
| Power Supply Voltage | 4.5 V to 5.5 V | V | |
| Power Supply Current | 20 μA to 500 μA | μA | Depends on input levels (CMOS or TTL) |
Key Features
- Adjustable/Selectable Reset Voltage Threshold: Allows for 5% or 10% tolerance settings based on the TOLERANCE input pin.
- Open-Drain or Push-Pull Reset Output: Provides flexibility in reset signal handling.
- Wide Operating Temperature Range: Reliable performance from -40°C to 85°C.
- Compact Surface Mount Package: Easy integration into various systems with the 8-lead narrow SOIC package.
- RoHS3 Compliant: Environmentally friendly and compliant with current regulations.
- Push-Button Reset Input: Debounced input ignores pulses less than 1 ms and responds to pulses greater than 20 ms.
- Strobe Timeout Selection: Allows user to set the maximum time for the STROBE input to remain inactive before generating a RESET pulse.
Applications
- Microprocessor-Based Systems: Essential for ensuring proper reset functions in microprocessor-driven systems.
- Industrial Control Systems: Reliable monitoring and reset capabilities in industrial environments.
- Embedded Systems: Suitable for use in embedded systems requiring robust power-on reset functions.
- Consumer Electronics: Used in various consumer electronic devices to ensure stable operation.
- Automotive Systems: Applicable in automotive systems for reliable microprocessor supervision.
Q & A
- What is the primary function of the ADM1232ARNZ-REEL7?
The primary function is to provide microprocessor reset and power-on reset functions, monitoring the microprocessor supply voltage and detecting lock-ups or external interrupts.
- What are the available package options for the ADM1232?
The ADM1232 is available in several packages, including 8-lead MSOP, 8-lead PDIP, 16-lead wide SOIC, and 8-lead narrow SOIC (R-8) for the ADM1232ARNZ-REEL7 model.
- What is the operating temperature range of the ADM1232ARNZ-REEL7?
The operating temperature range is from -40°C to 85°C.
- How does the TOLERANCE input work?
The TOLERANCE input determines the voltage tolerance level. Connecting it to GND sets a 5% tolerance, and connecting it to VCC sets a 10% tolerance.
- What types of reset outputs are available?
The ADM1232 provides both open-drain and push-pull reset output options.
- Is the ADM1232ARNZ-REEL7 RoHS compliant?
Yes, the ADM1232ARNZ-REEL7 is RoHS3 compliant.
- What is the minimum reset timeout period?
The minimum reset timeout period is 250 ms.
- How does the push-button reset input work?
The push-button reset input is debounced and ignores pulses less than 1 ms, ensuring a reset only if the input is held low for more than 20 ms.
- In what types of systems is the ADM1232 commonly used?
The ADM1232 is commonly used in microprocessor-based systems, industrial control systems, embedded systems, and consumer electronics.
- Is the ADM1232ARNZ-REEL7 an active product?
Yes, the ADM1232ARNZ-REEL7 is an active product and is not nearing discontinuation.
