Overview
The N84C162WD42TG, produced by onsemi, is a comprehensive memory and supervisory solution designed for microcontroller-based systems. This device integrates a 16-Kb serial EEPROM memory, a system power supervisor with brownout protection, and does not include a watchdog timer, distinguishing it from the N84C161 model. The EEPROM memory interface is accessed via an I2C bus, making it compatible with a wide range of microcontrollers and other ICs. The device is particularly useful for ensuring system reliability during power-up, power-down, and brownout conditions.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Memory Capacity | 16 Kb | |
| Memory Interface | I2C Bus | |
| Operating Voltage Range | 2.7 V to 6 V | V |
| Reset Threshold Voltage | 4.25 V - 4.50 V | V |
| Reset Output | Active High/Active Low, Open Drain | |
| Package Type | 8-SOIC (0.154", 3.90mm Width) | |
| Operating Temperature Range | -40°C to 85°C | °C |
| Data Retention | 100 Years | |
| Program/Erase Cycles | 1,000,000 | |
| RoHS Compliance | Yes, Lead-free, Halogen-free/BFR Free |
Key Features
- 400 kHz I2C Bus Compatible
- Low Power CMOS Technology
- 16-Byte Page Write Buffer
- Built-in Inadvertent Write Protection:
- VCC Lock Out
- Write Protection Pin, WP
- Precision Power Supply Voltage Monitor with Five Threshold Voltage Options
- Manual Reset Capability using RESET/RESET Pins
- Commercial and Industrial Temperature Ranges
Applications
The N84C162WD42TG is suitable for a variety of applications in microcontroller-based systems, including:
- Embedded Systems
- Industrial Control Systems
- Automotive Electronics
- Consumer Electronics
- Medical Devices
It is particularly useful in scenarios where reliable power monitoring and memory protection are critical.
Q & A
- What is the primary function of the N84C162WD42TG?
The N84C162WD42TG is a supervisory circuit that provides a 16-Kb serial EEPROM memory, power supply monitoring, and reset capabilities for microcontroller-based systems.
- What is the operating voltage range of the N84C162WD42TG?
The device operates within a voltage range of 2.7 V to 6 V.
- Does the N84C162WD42TG include a watchdog timer?
No, the N84C162WD42TG does not include a watchdog timer, unlike the N84C161 model.
- What type of memory interface does the N84C162WD42TG use?
The device uses an I2C bus for memory interface.
- What are the reset threshold voltage options for the N84C162WD42TG?
The device is available with five reset threshold voltage ranges, including 4.25 V - 4.50 V for the N84C162WD42TG model.
- How does the write protection work on the N84C162WD42TG?
The device features a write protect pin (WP) and VCC sense circuit that prevents writes to memory when VCC falls below the reset threshold or until VCC reaches the reset threshold during power-up.
- What is the data retention period of the N84C162WD42TG?
The device has a data retention period of 100 years.
- Is the N84C162WD42TG RoHS compliant?
Yes, the device is RoHS compliant, lead-free, and halogen-free/BFR free.
- What is the package type of the N84C162WD42TG?
The device is packaged in an 8-SOIC (0.154", 3.90mm Width) package.
- What are the operating temperature ranges for the N84C162WD42TG?
The device operates within a temperature range of -40°C to 85°C.
