MB3793-42PNF-G-JN-6E1

MB3793-42PNF-G-JN-6E1 Datasheet

MB3793-42

Part	Datasheet
MB3793-42PNF-G-JN-6E1	MB3793-42PNF-G-JN-6E1 (pdf)

Related Parts	Information
MB3793-42PNF-G-JN-ER-6E1	MB3793-42PNF-G-JN-ER-6E1
MB3793-42PF-G-BND-JN-6E1	MB3793-42PF-G-BND-JN-6E1

PDF Datasheet Preview
DS04-27402-4E ASSP POWER-VOLTAGE MONITORING IC WITH WATCHDOG TIMER MB3793-42 s DESCRIPTION The MB3793 is an integrated circuit to monitor power voltage it incorporates a watchdog timer. A reset signal is output when the power is cut or falls abruptly. When the power recovers normally after resetting, a power-on reset signal is output to microprocessor units MPUs . An internal watchdog timer with two inputs for system operation diagnosis can provide a fail-safe function for various application systems. There is also a mask option that can detect voltages of to 2.4V in 0.1-V steps. The model number and package code are as shown below. Model No. Package code Detection voltage MB3793-42 3793-A s FEATURES • Precise detection of power voltage fall • Detection voltage with hysteresis • Low power dispersion ICC = 27 µA reference • Internal dual-input watchdog timer • Watchdog timer halt function by inhibition terminal • Independently-set watchdog and reset times • Mask option for detection voltage to V, 0.1-V steps s PACKAGES 8-pin plastic DIP 8-pin plastic SOP 8-pin plastic SOP DIP-8P-M01 FPT-8P-M01 FPT-8P-M02 MB3793-42 s PIN ASSIGNMENT TOP VIEW RESET 8 CK1 7 CK2 6 INH DIP-8P-M01 FPT-8P-M01 FPT-8P-M02 s PIN DESCRIPTION Pin No. Symbol RESET Outputs reset CTW Sets monitoring time CTP Sets power-on reset hold time GND Ground Pin No. Symbol VCC Power supply INH Inhibits watchdog timer function CK2 Inputs clock 2 CK1 Inputs clock 1 s BLOCK DIAGRAM MB3793-42 s ORDERING INFORMATION Part number MB3793-42P MB3793-42PF MB3793-42PNF Package 8-pin plastic DIP-8P-M01 8-pin plastic SOP FPT-8P-M01 8-pin plastic SOP FPT-8P-M02 Remarks MB3793-42 s PACKAGE DIMENSIONS 8-pin plastic DIP-8P-M01 1 PIN INDEX 4.36 .172 MAX 3.00 .118 MIN C 1994 FUJITSU LIMITED D08006S-2C-3 0.51 .020 MIN 15°MAX Dimensions in mm inches Note The values in parentheses are reference values. Continued MB3793-42 8-pin plastic SOP FPT-8P-M01 Note 1 1 These dimensions include resin protrusion. Note 2 2 These dimensions do not include resin protrusion. Note 3 Pins width and pins thickness include plating thickness. Note 4 Pins width do not include tie bar cutting remainder. INDEX Details of "A" part Mounting height Stand off C 2002 FUJITSU LIMITED F08002S-c-6-7 Dimensions in mm inches Note The values in parentheses are reference values. Continued MB3793-42 Continued 8-pin plastic SOP FPT-8P-M02 Note 1 1 These dimensions include resin protrusion. Note 2 2 These dimensions do not include resin protrusion. Note 3 Pins width and pins thickness include plating thickness. Note 4 Pins width do not include tie bar cutting remainder. Details of "A" part Mounting height Stand off C 2002 FUJITSU LIMITED F08004S-c-4-7 Dimensions in mm inches Note The values in parentheses are reference values. MB3793-42 FUJITSU LIMITED All Rights Reserved. The contents of this document are subject to change without notice. Customers are advised to consult with FUJITSU sales representatives before ordering. The information, such as descriptions of function and application circuit examples, in this document are presented solely for the purpose of reference to show examples of operations and uses of Fujitsu semiconductor device Fujitsu does not warrant proper operation of the device with respect to use based on such information. When you develop equipment incorporating the device based on such information, you must assume any responsibility arising out of such use of the information. Fujitsu assumes no liability for any damages whatsoever arising out of the use of the information. Any information in this document, including descriptions of function and schematic diagrams, shall not be construed as license of the use or exercise of any intellectual property right, such as patent right or copyright, or any other right of Fujitsu or any third party or does Fujitsu warrant non-infringement of any third-party’s intellectual property right or other right by using such information. Fujitsu assumes no liability for any infringement of the intellectual property rights or other rights of third parties which would result from the use of information contained herein. The products described in this document are designed, developed and manufactured as contemplated for general use, including without limitation, ordinary industrial use, general office use, personal use, and household use, but are not designed, developed and manufactured as contemplated 1 for use accompanying fatal risks or dangers that, unless extremely high safety is secured, could have a serious effect to the public, and could lead directly to death, personal injury, severe physical damage or other loss i.e., nuclear reaction control in nuclear facility, aircraft flight control, air traffic control, mass transport control, medical life support system, missile launch control in weapon system , or 2 for use requiring extremely high reliability i.e., submersible repeater and artificial satellite . Please note that Fujitsu will not be liable against you and/or any third party for any claims or damages arising in connection with above-mentioned uses of the products. Any semiconductor devices have an inherent chance of failure. You must protect against injury, damage or loss from such failures by incorporating safety design measures into your facility and equipment such as redundancy, fire protection, and prevention of over-current levels and other abnormal operating conditions. If any products described in this document represent goods or technologies subject to certain restrictions on export under the Foreign Exchange and Foreign Trade Law of Japan, the prior authorization by Japanese government will be required for export of those products from Japan. F0308 FUJITSU LIMITED Printed in Japan

PDF Datasheet Preview

DS04-27402-4E

ASSP

POWER-VOLTAGE MONITORING IC WITH WATCHDOG TIMER

MB3793-42
s DESCRIPTION

The MB3793 is an integrated circuit to monitor power voltage it incorporates a watchdog timer. A reset signal is output when the power is cut or falls abruptly. When the power recovers normally after resetting, a power-on reset signal is output to microprocessor units MPUs . An internal watchdog timer with two inputs for system operation diagnosis can provide a fail-safe function for various application systems. There is also a mask option that can detect voltages of to 2.4V in 0.1-V steps. The model number and package code are as shown below.

Model No.

Package code

Detection voltage

MB3793-42
3793-A
s FEATURES
• Precise detection of power voltage fall
• Detection voltage with hysteresis
• Low power dispersion ICC = 27 µA reference
• Internal dual-input watchdog timer
• Watchdog timer halt function by inhibition terminal
• Independently-set watchdog and reset times
• Mask option for detection voltage to V, 0.1-V steps
s PACKAGES
8-pin plastic DIP
8-pin plastic SOP
8-pin plastic SOP

DIP-8P-M01

FPT-8P-M01

FPT-8P-M02

MB3793-42
s PIN ASSIGNMENT

TOP VIEW

RESET
8 CK1
7 CK2
6 INH

DIP-8P-M01 FPT-8P-M01 FPT-8P-M02
s PIN DESCRIPTION

Pin No. Symbol

RESET Outputs reset

CTW Sets monitoring time

CTP Sets power-on reset hold time

GND Ground

Pin No. Symbol

VCC Power supply

INH Inhibits watchdog timer function

CK2 Inputs clock 2

CK1 Inputs clock 1
s BLOCK DIAGRAM

MB3793-42
s ORDERING INFORMATION

Part number MB3793-42P MB3793-42PF MB3793-42PNF

Package
8-pin plastic DIP-8P-M01
8-pin plastic SOP FPT-8P-M01
8-pin plastic SOP FPT-8P-M02

Remarks

MB3793-42
s PACKAGE DIMENSIONS
8-pin plastic DIP-8P-M01
1 PIN INDEX
4.36 .172 MAX 3.00 .118 MIN

C 1994 FUJITSU LIMITED D08006S-2C-3
0.51 .020 MIN
15°MAX

Dimensions in mm inches Note The values in parentheses are reference values.

Continued

MB3793-42
8-pin plastic SOP FPT-8P-M01

Note 1 *1 These dimensions include resin protrusion. Note 2 *2 These dimensions do not include resin protrusion. Note 3 Pins width and pins thickness include plating thickness. Note 4 Pins width do not include tie bar cutting remainder.

INDEX

Details of "A" part

Mounting height

Stand off

C 2002 FUJITSU LIMITED F08002S-c-6-7

Dimensions in mm inches Note The values in parentheses are reference values.

Continued

MB3793-42

Continued
8-pin plastic SOP FPT-8P-M02

Note 1 *1 These dimensions include resin protrusion. Note 2 *2 These dimensions do not include resin protrusion. Note 3 Pins width and pins thickness include plating thickness. Note 4 Pins width do not include tie bar cutting remainder.

Details of "A" part

Mounting
height

Stand off

C 2002 FUJITSU LIMITED F08004S-c-4-7

Dimensions in mm inches Note The values in parentheses are reference values.

MB3793-42

FUJITSU LIMITED

All Rights Reserved.
The contents of this document are subject to change without notice. Customers are advised to consult with FUJITSU sales representatives before ordering. The information, such as descriptions of function and application circuit examples, in this document are presented solely for the purpose of reference to show examples of operations and uses of Fujitsu semiconductor device Fujitsu does not warrant proper operation of the device with respect to use based on such information. When you develop equipment incorporating the device based on such information, you must assume any responsibility arising out of such use of the information. Fujitsu assumes no liability for any damages whatsoever arising out of the use of the information. Any information in this document, including descriptions of function and schematic diagrams, shall not be construed as license of the use or exercise of any intellectual property right, such as patent right or copyright, or any other right of Fujitsu or any third party or does Fujitsu warrant non-infringement of any third-party’s intellectual property right or other right by using such information. Fujitsu assumes no liability for any infringement of the intellectual property rights or other rights of third parties which would result from the use of information contained herein. The products described in this document are designed, developed and manufactured as contemplated for general use, including without limitation, ordinary industrial use, general office use, personal use, and household use, but are not designed, developed and manufactured as contemplated 1 for use accompanying fatal risks or dangers that, unless extremely high safety is secured, could have a serious effect to the public, and could lead directly to death, personal injury, severe physical damage or other loss i.e., nuclear reaction control in nuclear facility, aircraft flight control, air traffic control, mass transport control, medical life support system, missile launch control in weapon system , or 2 for use requiring extremely high reliability i.e., submersible repeater and artificial satellite . Please note that Fujitsu will not be liable against you and/or any third party for any claims or damages arising in connection with above-mentioned uses of the products. Any semiconductor devices have an inherent chance of failure. You must protect against injury, damage or loss from such failures by incorporating safety design measures into your facility and equipment such as redundancy, fire protection, and prevention of over-current levels and other abnormal operating conditions. If any products described in this document represent goods or technologies subject to certain restrictions on export under the Foreign Exchange and Foreign Trade Law of Japan, the prior authorization by Japanese government will be required for export of those products from Japan.

F0308 FUJITSU LIMITED Printed in Japan

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived MB3793-42PNF-G-JN-6E1 Datasheet file may be downloaded here without warranties.

Datasheet ID: MB3793-42PNF-G-JN-6E1 635654