STM6821RWY6F

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High-performance voltage supervisor with manual reset input
• Package: SOT-23-6
• Essence: Voltage monitoring and reset generation for microcontrollers and other digital systems
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.8V to 5.5V
• Reset Threshold Voltage Options: 2.63V, 3.08V, 4.38V, and adjustable
• Manual Reset Input Threshold Voltage: 0.4V
• Quiescent Current: 7µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The STM6821RWY6F is a six-pin device with the following pin configuration:

1. GND: Ground
2. MR: Manual Reset Input
3. VDD: Supply Voltage
4. RESET: Reset Output
5. NC: No Connection
6. VOUT: Power Good Output

Functional Features

• Monitors the supply voltage and generates a reset signal when it falls below the specified threshold.
• Provides a manual reset input for immediate system reset.
• Power good output indicates when the supply voltage is within the acceptable range.
• Adjustable reset threshold option allows customization for specific applications.
• Low quiescent current ensures minimal power consumption.

Advantages

• Reliable voltage monitoring and reset generation for microcontrollers and digital systems.
• Flexible reset threshold options cater to various voltage requirements.
• Manual reset input provides additional control over system reset.
• Power good output assists in system-level fault detection.
• Low power consumption prolongs battery life in portable devices.

Disadvantages

• Limited to voltage monitoring and reset generation functionality.
• SOT-23-6 package may not be suitable for all applications requiring power management ICs.
• No built-in protection features against overvoltage or undervoltage conditions.

Working Principles

The STM6821RWY6F operates by continuously monitoring the supply voltage. When the voltage falls below the specified threshold, it generates a reset signal to initiate a system reset. The manual reset input allows immediate system reset when triggered. The power good output indicates when the supply voltage is within the acceptable range, enabling fault detection at the system level. The adjustable reset threshold option provides flexibility to adapt to different voltage requirements.

Application Field Plans

The STM6821RWY6F finds application in various fields where voltage monitoring and reset generation are critical for the proper functioning of microcontrollers and digital systems. Some potential application areas include:

1. Embedded Systems: Ensuring reliable operation of microcontroller-based embedded systems.
2. Industrial Automation: Monitoring voltage levels in industrial control systems.
3. Automotive Electronics: Providing voltage supervision in automotive electronic control units (ECUs).
4. Consumer Electronics: Enabling proper reset functionality in devices such as smartphones, tablets, and gaming consoles.
5. Medical Devices: Ensuring stable operation of medical equipment that relies on microcontrollers.

Alternative Models

• STM6820RWY6F
• STM6822RWY6F
• STM6823RWY6F
• STM6824RWY6F

These alternative models offer similar voltage monitoring and reset generation capabilities, but may have different specifications and pin configurations. It is recommended to refer to their respective datasheets for detailed information.

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