Overview: The CN705/706/707/708/813 series microprocessor reset circuits are primarily used for monitoring the power supply and battery voltage of the microprocessor. The CN705/706/707/708/813 series circuits integrate a microprocessor reset circuit, a watchdog circuit, a manual reset circuit, and a power-down voltage comparator with a threshold of 1.22 volts. This series of circuits reduces system complexity and the number of external components, improving system reliability. The CN705/706/707/708/813 series microprocessor reset circuits offer several functional options. Each device can generate a reset signal when the power supply voltage falls below the reset threshold. In addition, the CN705/706/813 also has an independent watchdog circuit timed at 1.6 seconds; the CN707/708 provides both active-low and active-high reset signals but does not have a watchdog circuit. The CN813 provides an active-high reset signal and is otherwise functionally identical to the CN705/706. The CN705/706/707/708/813 series microprocessor reset circuits are well-suited for applications in automotive electronics, computers, controllers, and smart instruments. All devices in this series are available in 8-pin dual in-line packages (DIP8) and 8-pin small outline packages (SOP8).

Product Parameters

Main Functions: Used for monitoring power supply and battery voltage in microprocessors

Output Voltage Range: 1.15V-6V

Input Voltage Range: 1.15V-6V

Operating Current: 30uA (VCC=5V)

Package Type: Standard Operating Procedure 8

Delay: 200ms

Reset Threshold: High/Low Reset , 3.08V

Watchdog: No

Applications:

l Computer

l Controller

l Intelligent Instruments

l Automotive Systems

Features:

l Reliable reset signal output even when the power supply voltage is as low as 1.15V

l Precise voltage monitoring function, reset threshold from 2.6V to 5.0V, in 0.1V increments

l Low operating current: Typical value 52µA at 5V

l Typical reset pulse width 200ms

l Independent watchdog circuit, typical timing 1.6 seconds

l Provides power-off or low battery voltage comparator

l Pin arrangement and function compatible with industry standard 705/706/707/708/813

l 8-pin dual in-line package (DIP8) and 8-pin small outline package (SOP8)