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Part Name(s) : TC32MCDBTR TC32MEDBTR Microchip
Microchip Technology
Description : ECONOMONITOR™ – 3-Pin System supervisor with Power Supply Monitor and watchdog View

General Description:
The TC32M is a fully-integrated processor supervisor in a 3-pin package. It provides three important func tions to safeguard processor sanity: precision power on/off reset control, watchdog timer and external reset override.
On power-up, the TC32M holds the processor in the reset state for a minimum of 500 msec after VDD is within tolerance to ensure a stable system start-up. Microprocessor sanity is monitored by the on-board watchdog circuit. The microprocessor must provide a high-to-low level shift (through an external resistor divider) on the RS pin of the TC32M. Should the processor fail to supply this signal within the specified time-out period (typically 700 msec), an out-of-control processor is indicated and the TC32M issues a processor reset as a result.
The output of the TC32M can be wire-ORed with a push-button switch (or electronic signal) to override the TC32M and unconditionally reset the processor. When connected to a push-button switch, the TC32M provides contact debounce.
The TC32M is packaged in a space-saving TO-92 or SOT-223 package. It provides all of the functionality of the industry standard TC1232 in a smaller, lower cost configuration.

Features:
• Incorporates the Functionality of the Industry
   Standard TC1232 (Processor Monitor, watchdog
   and Manual Override reset Controller) into a
   Small, Lower Cost Package
• Guards Against Unstable Processor Operation
   Resulting from Power “Brown-Out”
• Automatically Halts and Restarts an Out-of
   Control Microprocessor
• Output can be Wire-ORed, or Hooked to Manual
   reset push-button Switch
• Space-Saving 3-Pin TO-92 or SOT-223 Package

Applications:
• All Microprocessor-Based Systems
• Battery Powered Computers and Controllers
• Automotive Systems
• Intelligent Instruments
• Critical Processor Monitoring
• Embedded Controllers

Part Name(s) : TC32MCDB TC32MCZB TC32MEDB TC32MEZB TC32M TelCom-Semiconductor
TelCom Semiconductor Inc => Microchip
Description : ECONOMONITOR™ – 3-PIN SYSTEM supervisor with POWER SUPPLY MONITOR and watchdog View

GENERAL DESCRIPTION
The TC32M is a fully-integrated processor supervisor in a 3-pin package. It provides three important functions to safeguard processor sanity: precision power on/off reset control, watchdog timer and external reset override.
On power-up, the TC32M holds the processor in the reset state for a minimum of 500msec after VDD is within tolerance to ensure a stable system start-up. Microprocessor sanity is monitored by the on-board watchdog circuit. The microprocessor must provide a high-to-low level shift (through an external resistor divider) on the RS pin of the TC32M. Should the processor fail to supply this signal within the specified timeout period (typically 700msec), an out-of control processor is indicated and the TC32M issues a processor reset as a result.
The output of the TC32M can be wire-ORed with a push button switch (or electronic signal) to override the TC32M and unconditionally reset the processor. When connected to a push-button switch, the TC32M provides contact debounce.
The TC32M is packaged in a space-saving TO-92 or SOT-223 package. It provides all of the functionality of the industry standard TC1232 in a smaller, lower cost configuration.

FEATURES
■ Incorporates the Functionality of the Industry
   Standard TC1232 (Processor Monitor, watchdog
   and Manual Override reset Controller) into a
   Small, Lower Cost Package
■ Guards Against Unstable Processor Operation
   Resulting from Power "Brown-Out"
■ Automatically Halts and Restarts an Out-of
   Control Microprocessor
■ Output can be Wire-ORed, or Hooked to Manual
   reset push-button Switch
■ Space-Saving 3-Pin TO-92 or SOT-223 Package

APPLICATIONS
■ All Microprocessor-Based Systems
■ Battery Powered Computers and Controllers
■ Automotive Systems
■ Intelligent Instruments
■ Critical Processor Monitoring
■ Embedded Controllers

Part Name(s) : TC32M TC32MCDB TC32MCDB713 TC32MCZB TC32MEDB TC32MEDB713 TC32MEZB TC32M TC32MCDB TC32MCDB713 Microchip
Microchip Technology
Description : ECONOMONITOR™ – 3-Pin System supervisor with Power Supply Monitor and watchdog View

General Description:
The TC32M is a fully-integrated processor supervisor in a 3-pin package. It provides three important func tions to safeguard processor sanity: precision power on/off reset control, watchdog timer and external reset override.
On power-up, the TC32M holds the processor in the reset state for a minimum of 500 msec after VDD is within tolerance to ensure a stable system start-up. Microprocessor sanity is monitored by the on-board watchdog circuit. The microprocessor must provide a high-to-low level shift (through an external resistor divider) on the RS pin of the TC32M. Should the processor fail to supply this signal within the specified time-out period (typically 700 msec), an out-of-control processor is indicated and the TC32M issues a processor reset as a result.
The output of the TC32M can be wire-ORed with a push-button switch (or electronic signal) to override the TC32M and unconditionally reset the processor. When connected to a push-button switch, the TC32M provides contact debounce.
The TC32M is packaged in a space-saving TO-92 or SOT-223 package. It provides all of the functionality of the industry standard TC1232 in a smaller, lower cost configuration.

Features:
• Incorporates the Functionality of the Industry
   Standard TC1232 (Processor Monitor, watchdog
   and Manual Override reset Controller) into a
   Small, Lower Cost Package
• Guards Against Unstable Processor Operation
   Resulting from Power “Brown-Out”
• Automatically Halts and Restarts an Out-of
   Control Microprocessor
• Output can be Wire-ORed, or Hooked to Manual
   reset push-button Switch
• Space-Saving 3-Pin TO-92 or SOT-223 Package

Applications:
• All Microprocessor-Based Systems
• Battery Powered Computers and Controllers
• Automotive Systems
• Intelligent Instruments
• Critical Processor Monitoring
• Embedded Controllers

Part Name(s) : MM1075 MM1075XD MM1075XF Mitsumi
Mitsumi
Description : System reset (with built-in watchdog timer) View

Outline

This IC functions in a variety of CPU systems and other logic systems to generate a reset signal and reset the system accurately during momentary interruption or lowering of power supply voltage.

It also has a built-in watchdog timer for operation diagnosis. This prevents the system from running wild by generating an intermittent reset pulse during system mis-operation.



Features

1. Built-in watchdog timer

2. Low minimum operating voltage VCC=0.8V typ.

3. Both positive and negative logic reset output can be extracted

4. Accurate detection of drop in power supply voltage

5. Detection voltage has hysteresis

6. Few external parts 1 capacitor

7. timer monitoring time can be varied by using an external resistor



Applications

Microcomputer system monitoring, etc.



 



Part Name(s) : MM1135 MM1136 Mitsumi
Mitsumi
Description : System reset (with built-in watchdog timer) View

Monolithic IC MM1135, MM1136



These ICs were developed to drive low voltage batteries, and have a watchdog timer with built-in microcomputer reset voltage detection circuit and low battery detection circuit.



A single reference voltage is used for low battery voltage detection and microcomputer reset voltage detection, so detection voltage difference is uniform (=.0.2V). Further, there is a built-in watchdog timer for operation diagnosis, which prevents the system from running wild by generating an intermittent reset pulse during system mis-operation.





 


Part Name(s) : NE56604-42D NE56604-42 Philips
Philips Electronics
Description : System reset with built-in watchdog timer View

GENERAL DESCRIPTION
The NE56604-42 is designed to generate a reset signal at a threshold voltage of 4.2 V for a variety of microprocessor and logic systems. Accurate reset signals are generated during momentary power interruptions, or whenever power supply voltages sag to intolerable levels. The NE56604-42 has a built-in watchdog timer to monitor the microprocessor and ensure it is operating properly. Any abnormal system operations due to microprocessor malfunctions are terminated by a system reset generated by the watchdog. The NE56604-42 has a watchdog monitoring time of 100 ms (typical).

FEATURES
• Both positive and negative logic reset output signals are available
• Accurate threshold detection
• Internal power-on reset delay
• Internal watchdog timer programmable with external resistor
watchdog monitoring time of 100 ms (typical)
reset assertion with VCC down to 0.8 VDC (typical)
• Few external components required.

APPLICATIONS
• Microcomputer systems
• Logic systems.

Part Name(s) : NE56605-42 NE56605-42D Philips
Philips Electronics
Description : System reset with built-in watchdog timer View

GENERAL DESCRIPTION
The NE56605-42 is designed to generate a reset signal, at a threshold voltage of 4.2 V, for a variety of microprocessor and logic systems. Accurate reset signals are generated during momentary power interruptions, or whenever power supply voltages sag to intolerable levels. The NE56605-42 has a built-in watchdog timer to monitor the microprocessor and ensure it is operating properly. Any abnormal system operations due to microprocessor malfunctions are terminated by the watchdog’s generating a system reset. The NE56605-42 has a watchdog monitoring time of 10 ms (typical).
The NE56605-42 is offered in the SO8 surface mount package.

FEATURES
• Both positive and negative logic reset output signals are available
• Accurate threshold detection
• Internal power-on reset delay
• Internal watchdog timer programmable with external capacitor
watchdog monitoring time of 10 ms
reset assertion with VCC down to 0.8 VDC (typical)
• Few external components required.

APPLICATIONS
• Microcomputer systems
• Logic systems.

Part Name(s) : TA8030F TA8030S Toshiba
Toshiba
Description : watchdog timer View

The TA8030S TA8030F is a system reset IC for 5V supply voltage system. It is specially designed for microcomputer systems. It incorporates a watchdog timer for monitoring microcomputer operation and has many reset functions, including a reset timer output which will be given at power-on and another reset output which will be given when the supply voltage drops. with these functions, it helps build up a reliable system.



FEATURES

watchdog timer

Power-on reset timer

Dual-reset output

SIP7 PIN (TA8030S)

SOP8 PIN (TA8030F)


Part Name(s) : NE56625-20 NE56625-20D Philips
Philips Electronics
Description : System reset with watchdog timer View

GENERAL DESCRIPTION
The NE56625-20 is comprised of a power-on reset, a watchdog timer and low battery detection circuit. The NE56625 is designed to generate an Active-LOW reset signal for a variety of microprocessor and logic systems. Accurate reset signals are generated during momentary power interruptions or whenever power supply voltages sag to intolerable levels. The built-in watchdog timer monitors the microprocessor and ensures it is operating properly. Any abnormal system operations due to microprocessor malfunctions are terminated by a system reset generated by the watchdog. To accommodate a wide range of system requirements, the watchdog Monitoring Time and power-on reset delay time are programmable from 10 ms to 10 sec.

FEATURES
• Accurate threshold detection voltages:
   – Low battery: 2.2 V ±3%
   – Power-on reset: 2.0 V ±3%
• Low hysteresis voltage (both low battery check and power-on
   reset): 50 mV typ.
• Low supply current: 150 µA typ.
• Programmable power-on reset detection voltage
• Programmable power-on reset delay: 10 ms to 10 s
• Internal watchdog timer programmable with external resistor and
   capacitor: 10 ms to 10 s
reset assertion with VCC down to 0.8 VDC (typical)
• Few external components required

APPLICATIONS
• Microcomputer systems and logic systems
• 2 V cordless phones
• Various portable, battery operated equipment

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