MB3793-37APNF-G-JN-6E1 Fujitsu Semiconductor America Inc, MB3793-37APNF-G-JN-6E1 Datasheet
MB3793-37APNF-G-JN-6E1
Specifications of MB3793-37APNF-G-JN-6E1
MB3793-37APNF-G-JN6E2
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MB3793-37APNF-G-JN-6E1 Summary of contents
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... There is also a mask option that can detect voltages of 4 0.1-V steps. The model number is MB3793-37A corresponding to the detected voltage. The model number and package code are as shown below. Model No. ...
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... MB3793 -37A PIN ASSIGNMENT PIN DESCRIPTION Pin no. Symbol Descriptions 1 RESET Outputs reset pin Watchdog timer monitor time 2 CTW setting pin Power-on reset hold time 3 CTP setting pin 4 GND Ground pin 2 (Top view RESET 2 7 CTW 3 6 CTP GND 4 5 (FPT-8P-M01) (FPT-8P-M02) Pin no ...
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... BLOCK DIAGRAM all blocks CC CTP 3 1 RESET Output circuit INH 6 CTW 2 Watchdog timer Pulse generator 1 CK1 8 Pulse generator 2 7 CK2 . . Logic circuit Comp.S Reference voltage generator . REF To GND of all blocks MB3793 -37A 494 240 k 4 GND 3 ...
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... When V CC This function enables the MB3793 to detect ans abnomality within 1 s when the power is cut or falls abruptly. 2. Output circuit The output circuit contains a RESET output control comparator that compares the voltage at the CTP pin to the threshold voltage to release the RESET output if the CTP pin voltage exceeds the threshold value ...
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... I OL — – +85 C — D Tstg — –55 Symbol Conditions Min V — 1 — – — 0.001 TP C — 0.001 TW Ta — –40 MB3793 -37A (Ta = +25 C) Rating Unit Max + +10 mA 200 mW +125 C Value Unit Typ Max — 6.0 V — — — — + ...
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... MB3793 -37A ELECTRICAL CHARACTERISTICS 1. DC Characteristics Parameter Symbol Power supply current Detection voltage Detection voltage hysteresis V difference V Clock-input threshold voltage V Clock-input hysteresis V Inhibition-input voltage Input current (CK1, CK2, INH) V Reset output voltage Reset-output minimum V power voltage *: The values enclosed in parentheses ( ) are setting assurance values. ...
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... DIAGRAM 1. Basic operation (Positive clock pulse CK1 t CKT CK2 INH V th CTP V H CTW V L RESET t PR (1) (2) (3) t CKW (4)(5) (5) (6) (7) (8) (9) (10) MB3793 -37A (11) (12) (13) 7 ...
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... MB3793 -37A 2. Basic operation (Negative clock pulse CK1 t CKT CK2 INH V th CTP V H CTW V L RESET t PR (1) (2) (3) (4)(5) ( CKW (6) (7) (8) (9) (10) (11) (12) (13) ...
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... CK2 V th CTP V H CTW V L RESET Note: The MB3793 can monitor only one clock. The MB3793 checks the clock signal at every other input pulse. Therefore, set watchdog timer monitor time t long as the input clock pulse. t CKW t CKT the time that allows the MB3793 to monitor the period twice as ...
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... MB3793 -37A 4. Inhibition operation (Positive clock pulse CK1 CK2 INH V th CTP V H CTW V L RESET t PR (1) (2) ( CKW (4)(5) (5) (6) (7) (11) (8) (9) (10) (12) (13) ...
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... Clock monitoring To use the MB3793 while monitoring only one clock, connect clock pins CK1 and CK2. Although the MB3793 operates basically in the same way as when monitoring two clocks, it monitors the clock signal at every other input pulse. See “3. Single-clock input monitoring (positive clock pulse)” under “ DIAGRAM.” ...
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... The value about 100 with V The MB3793 repeats operations (4) and (5) as long as the CK1/CK2 pin inputs clock pulses clock pulse is input, the MB3793 repeats operations (6) and (7). ( lowered to the fall-time detected voltage (V CC MB3793 outputs a reset signal (setting the RESET pin to “L” level from “H” level). ...
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... MAX 3.8 TYP 3 MIN 3 3 Ambient temperature Reset output voltage-Reset output current (N-MOS side 500 +25 C 135 mV +85 C 167 mV 400 300 Ta = +85 C 200 100 Reset output current: I MB3793 -37A (Ta = +25 C) MAX V TYP MIN (Ta = + 100 R I RESET ON RESET (mA) RESET (Continued) 13 ...
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... MB3793 -37A Reset output voltage-Power supply voltage 7 Pull-up resistance: 100 + + Power supply voltage: V Watchdog timer reset time-Ambient temperature (when monitoring + +25 C MAX 14 12 TYP MIN 100 Ambient temperature Reset-on reset time-Ambient temperature 260 240 220 200 180 160 140 120 100 ...
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... Power-on reset time + + Power-on reset time setting capacitance: C Watchdog-timer monitoring time + Watchdog-timer monitoring time setting capacitance: C capacitance Power-on reset time setting capacitance capacitance + MB3793 -37A Reset time-C capacitance + + ...
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... MB3793 -37A APPLICATION EXAMPLE 1. Supply voltage monitor and watchdog timer (1-clock monitor GND *: Use a capacitor with less leakage current. The MB3793 monitors the clock (CK1/2) at every other input pulse. 2. Supply voltage monitor and watchdog timer stop INH CTW GND 3 CTP GND *: Use a capacitor with less leakage current ...
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... Use a capacitor with less leakage current. 1. Equation of time-setting capacitances ( [ms [ms However, when . = t [ms Values and D A 1300 1500 2. (Example) when C = 0.1 TP time (ms RESET 1 RESET Microprocessor 1 8 CK1 CK GND 7 GND CK2 4 and C ) and set time [ms about 10 Remark 0 100 0.01 F and 130 . MB3793 -37A V RESET Microprocessor 2 CK GND [ ...
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... The worker must put on a grounding device containing 250 k • Do not apply a negative voltage - Applying a negative voltage of 0 less to an LSI may generate a parasitic transistor, resulting in malfunction. ORDERING INFORMATION Part number MB3793-37PF MB3793-37PNF resistors in series. Package 8-pin Plastic SOP (FPT-8P-M01) 8-pin Plastic SOP ...
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... M Dimensions in mm (inches) . Note : The values in parentheses are reference values. MB3793 -37A Details of "A" part +0.25 2.00 –0.15 (Mounting height) +.010 .079 –.006 0.25(.010) 0~8 ˚ ...
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... MB3793 -37A (Continued) 8-pin Plastic SOP (FPT-8P-M02) +0.25 +.010 * 1 5.05 .199 –0.20 –.008 8 1 1.27(.050) 0.10(.004) 0.10(.004) 2002 FUJITSU LIMITED F08004S-c-4 Note These dimensions include resin protrusion. Note These dimensions do not include resin protrusion. Note 3) Pins width and pins thickness include plating thickness. ...
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... MB3793 -37A 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 ...