MB3793-42
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MB3793-42PF-GT-BND-K5E1 (pdf) |
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MB3793-42PF-GT-BNDK5ERE1 |
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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 Worldwide Sales and Design Support Cypress maintains a worldwide network of offices, solution centers, manufacturer’s representatives, and distributors. To find the office closest to you, visit us at Cypress Locations. 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