MB3793-42PF-GT-BND-K5E1

MB3793-42PF-GT-BND-K5E1 Datasheet


MB3793-42

Part Datasheet
MB3793-42PF-GT-BND-K5E1 MB3793-42PF-GT-BND-K5E1 MB3793-42PF-GT-BND-K5E1 (pdf)
Related Parts Information
MB3793-42PF-GT-BNDK5ERE1 MB3793-42PF-GT-BNDK5ERE1 MB3793-42PF-GT-BNDK5ERE1
PDF Datasheet Preview
MB3793-42

Power-Voltage Monitoring IC with Watchdog Timer

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. The model number and package code are as shown below.

Model No.

Marking Code

Detection Voltage

MB3793-42
3793-A
• Precise detection of power voltage fall
• Detection voltage with hysteresis
• Low power dispersion ICC = 27 uA 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
• Two types of packages SOP-8pin 2 types

Application
• Arcade Amusement etc.
• San Jose, CA 95134-1709
• 408-943-2600

MB3793-42

Contents

Description Features Application

PIN ASSIGNMENT

PIN DESCRIPTION

BLOCK DIAGRAM

BLOCK FUNCTIONS

ABSOLUTE MAXIMUM RATINGS

RECOMMENDED OPERATING CONDITIONS

ELECTRICAL CHARACTERISTICS DC Characteristics AC Characteristics

TIMING DIAGRAM Basic operation Positive clock pulse Basic operation Negative clock pulse Single-clock input monitoring Positive clock pulse

Inhibition operation Positive clock pulse Clock pulse input Positive clock pulse Inhibition input rising and falling time

OPERATION SEQUENCE

TYPICAL CHARACTERISTICS

STANDARD CONNECTION

APPLICATION EXAMPLE Monitoring Single Clock Watchdog Timer Stopping

NOTES ON USE
ORDERING INFORMATION

ROHS COMPLIANCE INFORMATION

PACKAGE DIMENSIONS

MAJOR CHANGES Document History Sales, Solutions, and Legal Information

Page 2 of 24

Pin Assignment

RESET CTW CTP GND

TOP VIEW

SOE008 SOB008

MB3793-42

Pin Description

Pin No. 1 2 3 4

Symbol RESET

CTW CTP GND

Description Outputs reset Sets monitoring time Sets power-on reset hold time Ground

Pin No. 5 6 7 8

Symbol VCC INH CK2 CK1

Description Power supply Inhibits watchdog timer function Inputs clock 2 Inputs clock 1

Page 3 of 24

Block Diagram

MB3793-42

To VCC of all blocks

I1 3 uA

I2 30 uA
5 VCC

CTP 3

Output buffer

RESET 1

Comp. O

INH 6

CTW 2

Watchdog timer

Pulse generator 1

CK1 8

Pulse generator 2

CK2 7

QS RSFF2 QR

QS RSFF1 QR

R1 590 kΩ

Reference voltage
generator
Ordering Information

Part Number MB3793-42PF-❏❏❏E1

MB3793-42PNF-❏❏❏E1

Package
8-pin plastic SOP SOE008
8-pin plastic SOP SOB008

Remarks

RoHS Compliance Information

The LSI products of Cypress with “E1” are compliant with RoHS Directive , and has observed the standard of lead, cadmium, mercury, Hexavalent chromium, polybrominated biphenyls PBB , and polybrominated diphenyl ethers PBDE The product that conforms to this standard is added “E1” at the end of the part number.

Page 20 of 24

Package Dimensions

Package Code SOE008

MB3793-42

INDEX AREA

A A1 10
4 E1 E

TOP VIEW

C A-B D

BOTTOM VIEW

DETAIL A
b SIDE VIEW

SEATING PLANE C

C A-B D 8

GAUGE PLANE

A' L L1

DETAIL A
b SECTION A-A'

DIMENSION SYMBOL

MIN. NOM. MAX.
1 27 6
/ / ' , 0 1 6 , 2 1 6 5 , 1 0 , / / , 0 7 5
' , 0 1 6 , 2 1 , 1 * 1 ' 7 2 / 5 1 & , 1 * 3 5 6 0 < 0
' , 0 1 6 , 2 1 , 1 * ' , 1 & / 8 ' 0 2 / ' / 6 + ' , 0 1 6 , 2 1 , 1 * ' 2 6 1 2 7 , 1 & / 8 ' , 1 7 5 / ' / 6 + 2 5 3 5 2 7 5 8 6 , 2 1 , 1 7 5 / ' / 6 + 2 5 3 5 2 7 5 8 6 , 2 1 6 + / / 1 2 7 & ' P 3 5 6 , ' ' D Q G ' , 0 1 6 , 2 1 5 ' 7 5 0 , 1 ' ' 7 8 0 +
7 + 3 & * 7 2 3 0 < % 6 0 / / 5 7 + 1 7 + 3 & * % 2 7 2 0 ' , 0 1 6 , 2 1 , 1 * D Q 5 ' 7 5 0 , 1 7 + 2 8 7 5 0 2 6 7 5 0 2 7 + 3 / 6 7 , % 2 ' & / 8 6 , 9 2 0 2 / / 6 + 7 + % 5 % 8 5 6 * 7 % 8 5 6 1 ' , 1 7 5 / ' / 6 + % 8 7 , 1 & / 8 ' , 1 * 1 0 , 6 0 7 & % 7 + 7 2 1 % 2 7 2 0 2 7 + 3 / 6 7 , % 2 ' <
' 7 8 0 6 % 7 2 % ' 7 5 0 , 1 ' 7 ' 7 8 0 +
1 , 6 7 + 0 , 0 8 0 1 8 0 % 5 2 7 5 0 , 1 / 3 2 6 , 7 , 2 1 6 2 5 7 + 6 3 & , , ' 3 & * / 1 * 7 +
7 + ' , 0 1 6 , 2 1 3 / < 7 2 7 + / 7 6 & 7 , 2 1 2 7 + / ' % 7 1 P 7 2 P 5 2 0 7 + / 7 , 3
' , 0 1 6 , 2 1 E ' 2 6 1 2 7 , 1 & / 8 ' 7 + ' 0 % 5 3 5 2 7 5 8 6 , 2 1 / / 2 % / ' 0 % 5 3 5 2 7 5 8 6 , 2 1 6 + / / % P 7 2 7 / , 1 & 6 2 7 + E ' , 0 1 6 , 2 1 0 , 0 8 0 7 5 , & 2 1 ' , 7 , 2 1 7 + ' 0 % 0 1 2 % / 2 & 7 2 7 + / 2 5 ' , 8 2 7 + 2 7
7 + , 6 & + 0 5 7 8 5 , 6 2 3 7 , 2 1 / / , 7 , 6 1 2 7 3 5 6 1 7 + 1 3 , 1 , ' 1 7 , , 0 8 6 % / 2 & 7 , 7 + , 7 + , 1 ' 5 , 1 ' , & 7 '
, 6 ' , 1 ' 6 7 + 9 5 7 , & / ' , 6 7 1 & 5 2 0 7 + 6 7 , 1 * 3 / 1 7 2 7 + / 2 6 3 2 , 1 2 7 + 3 & * % 2 ' & / 8 ' , 1 * 7 + / , 1 2 5 7 + 5 0 1 + 1 & 0 1 2 & 9 , 7 ' 2 3 & * & 2 1 , * 8 5 7 , 2 1 6

JEDEC SPECIFICATION NO. REF N/A
Updated Ordering Information:

Change the package name from FPT-8P-M01 to SOE008

Change the package name from FPT-8P-M02 to SOB008
5610247

HIXT
01/31/2017

Deleted the part numbers, MB3793-42PF- ❏❏❏ and MB3793-42PNF- ❏❏❏

Deleted the words in the Remarks, “Lead Free version”

Updated Package Dimensions Updated to Cypress format

Deleted “Marking Format Lead Free version ”

Deleted “Labeling Sample Lead free version ”

Deleted “MB3793-42PF- ❏❏❏ E1, MB3793-42PNF- ❏❏❏ E1 Recommended Conditions of

Moisture Sensitivity Level”
5788795 MASG 06/28/2017 Adapted Cypress new logo.

Page 23 of 24

MB3793-42

Sales, Solutions, and Legal Information

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Datasheet ID: MB3793-42PF-GT-BND-K5E1 508279