THIS SPEC IS OBSOLETE Spec No: 002-08550 Spec Title: MB3793-27A Power Voltage Monitoring IC with Watchdog Timer Replaced by: None MB3793-27A Power Voltage Monitoring IC with Watchdog Timer 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 fall-safe function for various application systems. Features Precise detection of power voltage fall: 2.5% Detection voltage with hysteresis Low power dispersion: ICC = 31 A (reference) Internal dual-input watchdog timer Watchdog-timer halt function (by inhibition pin) Independently-set watchdog and reset times Three types of packages (SOP-8pin : 2 types) Application Arcade Amusement etc. Cypress Semiconductor Corporation Document Number: 002-08550 Rev. *D * 198 Champion Court * San Jose, CA 95134-1709 * 408-943-2600 Revised December 10, 2018 MB3793-27A Contents Description ............................................................................. 1 Features .................................................................................. 1 Application ............................................................................. 1 Contents ................................................................................. 2 1. Pin Assignment ................................................................. 3 2. Pin Description .................................................................. 3 3. Block Diagram ................................................................... 4 4. Block Description .............................................................. 5 5. Absolute Maximum Ratings ............................................. 5 6. Recommended Operating Conditions ............................. 6 7. Electrical Characteristics .................................................. 7 7.1 DC Characteristics ..................................................... 7 7.2 AC Characteristics ...................................................... 7 8. Diagram .............................................................................. 8 8.1 Basic operation (Positive clock pulse) ........................ 8 8.2 Basic operation (Negative clock pulse) ...................... 9 8.3 Single-clock input monitoring (Positive clock pulse) . 10 8.4 Inhibition operation (Positive clock pulse) ................ 11 8.5 Clock pulse input supplementation (Positive clock pulse) ............................................................. 12 Document Number: 002-08550 Rev. *D 9. Operation Sequence ........................................................ 13 9.1 Positive clock pulse input ......................................... 13 9.2 Negative clock pulse input ........................................ 13 9.3 Clock monitoring ....................................................... 13 9.4 Description of Operations ......................................... 13 10. Typical Characteristics ................................................. 15 11. Application Example ..................................................... 18 11.1 Supply voltage monitor and watchdog timer (1-clock monitor) ................................................................................. 18 11.2 Supply voltage monitor and watchdog timer stop ... 19 12. Typical Application ........................................................ 20 13. Notes On Use ................................................................. 21 14. Ordering Information ..................................................... 21 15. RoHS Compliance Information...................................... 21 16. Package Dimensions ..................................................... 22 17. Major Changes ............................................................... 24 Document History ............................................................... 24 Sales, Solutions, and Legal Information ........................... 25 Page 2 of 25 MB3793-27A 1. Pin Assignment (TOP VIEW) RESET 1 8 CK1 CTW 2 7 CK2 CTP 3 6 INH GND 4 5 VCC (SOE008) (SOB008) 2. Pin Description Pin no. Symbol 1 RESET 2 Descriptions Pin no. Symbol Outputs reset pin 5 VCC Power supply pin CTW Watchdog timer monitor time setting pin 6 INH Inhibit pin 3 CTP Power-on reset hold time setting pin 7 CK2 Inputs clock 2 pin 4 GND Ground pin 8 CK1 Inputs clock 1 pin Document Number: 002-08550 Rev. *D Descriptions Page 3 of 25 MB3793-27A 3. Block Diagram To VCC of all blocks . 3 A I1 = . 5 VCC I2 .=. 30 A CTP 3 . R1 = . 295 k Logic circuit RESET 1 Output circuit INH 6 Comp.S CTW 2 Watchdog timer Reference voltage generator - VS + Pulse generator 1 . 1.24 V VREF = . CK1 8 R2 .=. 240 k Pulse generator 2 CK2 7 Document Number: 002-08550 Rev. *D To GND of all blocks 4 GND Page 4 of 25 MB3793-27A 4. Block Description 1. Comp. S Comp. S is a comparator with hysteresis to compare the reference voltage with a voltage (VS) that is the result of dividing the power voltage (VCC) by resistors 1 and 2. When VS falls below 1.24 V, a reset signal is output. This function enables the MB3793 to detect an abnormality 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. Since the reset (RESET) output buffer has CMOS organization, no pull-up resistor is needed. 3. Pulse generator The pulse generator generates pulses when the voltage at the CK1 and CK2 clock pins changes to High from Low level (positive-edge trigger) and exceeds the threshold voltage; it sends the clock signal to the watchdog timer. 4. Watchdog timer The watchdog timer can monitor two clock pulses. Short-circuit the CK1 and CK2 clock pins to monitor a single clock pulse. 5. Inhibition pin The inhibition (INH) pin forces the watchdog timer on/off. When this pin is High level, the watchdog timer is stopped. 6. Logic circuit The logic circuit contains flip-flops. Flip-flop RSFF1 controls the charging and discharging of the power-on reset hold time setting capacitor (CTP). Flip-flop RSFF2 turns on/off the circuit that accelerates charging of the power-on reset hold time setting capacitor (CTP) at a reset. The RSFF2 operates only at a reset; it does not operate at a power-on reset when the power is turned on. 5. Absolute Maximum Ratings Parameter Symbol Conditions VCC -- CK1 VCK1 -- CK2 VCK2 -- INH IINH -- RESET IOL IOH -- Power supply voltage* Input voltage* Reset output current Power dissipation Storage temperature PD Tstg Ta +85C -- Rating Unit Min Max -0.3 +7 V -0.3 +7 V -10 +10 mA -- 200 mW -55 +125 C *: The voltage is based on the ground voltage (0 V). WARNING: 1. Semiconductor devices may be permanently damaged by application of stress (including, without limitation, voltage, current or temperature) in excess of absolute maximum ratings.Do not exceed any of these ratings. Document Number: 002-08550 Rev. *D Page 5 of 25 MB3793-27A 6. Recommended Operating Conditions Parameter Symbol Conditions Power supply voltage VCC Reset (RESET) output current Value Unit Min Typ Max -- 1.2 -- 6.0 V IOL IOH -- -5 -- +5 mA Power-on reset hold time setting capacity CTP -- 0.001 -- 10 F Watchdog-timer monitoring time setting capacity* CTW -- 0.001 -- 1 F Ta -- -40 -- +85 C Operating ambient temperature *: The watchdog timer monitor time range depends on the rating of the setting capacitor. WARNING: 1. The recommended operating conditions are required in order to ensure the normal operation of the semiconductor device. All of the device's electrical characteristics are warranted when the device is operated under these conditions. 2. Any use of semiconductor devices will be under their recommended operating condition. 3.Operation under any conditions other than these conditions may adversely affect reliability of device and could result in device failure. 4.No warranty is made with respect to any use, operating conditions or combinations not represented on this data sheet. If you are considering application under any conditions other than listed herein, please contact sales representatives beforehand. Document Number: 002-08550 Rev. *D Page 6 of 25 MB3793-27A 7. Electrical Characteristics 7.1 DC Characteristics Parameter (VCC = +3.3 V, Ta = +25C) Symbol ICC Power supply current Clock-input threshold voltage Clock-input hysteresis Inhibition-input voltage VSL VCC falling VSH VCC rising Reset-output minimum power voltage Typ Max -- 31 55 2.63 2.70 2.77 (2.59)* 2.70 (2.81)* 2.69 2.76 2.87 (2.65)* 2.76 (2.87)* Ta = +25 C Ta = -40 C to +85 C Ta = +25 C Ta = -40 C to +85 C Unit A V V VSHYS VSH - VSL 35 65 95 mV VCIH CK rising (0.7)* 1.3 1.9 V VCIL CK falling 0.5 1.0 (1.5)* V V VCHTS -- (0.1)* 0.3 (0.6)* VIIH -- 2.2 -- -- VIIL -- -- 0 0.8 V IIH VCK = 5 V -- 0 1.0 A IIL VCK = 0 V -1.0 0 -- A VOH IRESET = -5 mA 2.8 3.10 -- V VOL IRESET = +5 mA -- 0.12 0.4 V VCCL IRESET = +50 A -- 0.8 1.2 V Input current (CK1, CK2, INH) Reset output voltage Min After exit from reset Detection voltage Detection voltage hysteresis difference Value Conditions *: The values enclosed in parentheses ( ) are setting assurance values. 7.2 AC Characteristics (VCC = +3.3 V, Ta = +25C) Parameter Symbol Conditions Value Unit Min Typ Max 30 75 120 ms -- -- s Power-on reset hold time tPR CTP = 0.1 F VCC input pulse width tPI CTP = 0.1 F (8)* VCC delay time tPD CTP = 0.1 F -- 2 (10)*2 s Watchdog timer monitor time tWD CTW = 0.01 F, CTP = 0.1 F 8 16 24 ms Watchdog timer reset time tWR CTP = 0.1 F 2 5.5 9 ms Clock input pulse width tCKW -- 500 -- -- ns Clock input pulse cycle tCKT -- 20 -- -- s Rising tr*1 CL = 50 pF -- -- 500 ns Falling tf*1 CL = 50 pF -- -- 500 ns Reset (RESET) output transition time 2 *1:The voltage range is 10% to 90% at testing the reset output transition time. *2:The values enclosed in parentheses ( ) are setting assurance values. Document Number: 002-08550 Rev. *D Page 7 of 25 MB3793-27A 8. Diagram 8.1 Basic operation (Positive clock pulse) VSH VSL VCC tCKW CK1 tCKT CK2 INH Vth CTP VH CTW VL RESET tWD tPR (1) (2) Document Number: 002-08550 Rev. *D (3) (4)(5) (5) tPR tWR (6) (7) (8) (9) (10) (11) (12) (13) Page 8 of 25 MB3793-27A 8.2 Basic operation (Negative clock pulse) VSH VSL VCC tCKW CK1 tCKT CK2 INH Vth CTP VH CTW VL RESET tPR (1) (2) tWD (3) (4)(5) (5) Document Number: 002-08550 Rev. *D tPR tWR (6) (7) (8) (9) (10) (11) (12) (13) Page 9 of 25 MB3793-27A 8.3 Single-clock input monitoring (Positive clock pulse) tCKW CK1 CK2 tCKT Vth CTP VH CTW VL RESET tWD tWR 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 tWD to the time that allows the MB3793 to monitor the period twice as long as the input clock pulse. Document Number: 002-08550 Rev. *D Page 10 of 25 MB3793-27A 8.4 Inhibition operation (Positive clock pulse) VSH VSL VCC tCKW CK1 tCKT CK2 INH Vth CTP VH CTW VL RESET tPR (1) (2) Document Number: 002-08550 Rev. *D tWD (3) (4)(5) (5) tPR tWR (6) (7) (11) (8) (9) (10) (12) (13) Page 11 of 25 MB3793-27A 8.5 Clock pulse input supplementation (Positive clock pulse) *1 CK1 *2 CK2 VH CTW VL Note : The MB3793 watchdog timer monitors Clock1 (CK1) and Clock2 (CK2) pulses alternately. When a CK2 pulse is detected after detecting a CK1 pulse, the monitoring time setting capacity (CTW) switches to charging from discharging. When two consecutive pulses occur on one side of this alternation before switching, the second pulse is ignored. In the above figure, pulse *1 and *2 are ignored. Document Number: 002-08550 Rev. *D Page 12 of 25 MB3793-27A 9. Operation Sequence 9.1 Positive clock pulse input See "1. Basic operation (positive clock pulse)" under "Diagram." 9.2 Negative clock pulse input See "2. Basic operation (negative clock pulse)" under "Diagram." The MB3793 operates in the same way whether it inputs positive or negative pulses. 9.3 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." 9.4 Description of Operations The numbers given to the following items correspond to numbers (1) to (13) used in "Diagram." (1) The MB3793 outputs a reset signal when the supply voltage (VCC) reaches about 0.8 V (VCCL) (2) If VCC reaches or exceeds the rise-time detected voltage VSH, the MB3793 starts charging the power-on reset hold time setting capacitor CTP. At this time, the output remains in a reset state. The VSH value is about 2.76 V. (3) When CTP has been charged for a certain period of time TPR (until the CTP pin voltage exceeds the threshold voltage (Vth) after the start of charging), the MB3793 cancels the reset (setting the RESET pin to "H" level from "L" level). The Vth value is about 2.4 V with VCC = 3.3 V The power-on reset hold time tPR is set with the following equation: tPR (ms) A x CTP (F) The value of A is about 750 with VCC = 3.3 V and about 700 with VCC = 3.0 V. The MB3793 also starts charging the watchdog time setting capacitor (CTW). (4) When the voltage at the watchdog timer monitor time setting pin CTW reaches the "H" level threshold voltage VH, the CTW switches from the charge state to the discharge state. The value of VH is always about 1.24 V regardless of the detected voltage. (5) If the CK2 pin inputs a clock pulse (positive edge trigger) when the CTW is being discharged in the CK1-CK2 order or simultaneously, the CTW switches from the discharge state to the charge state. The MB3793 repeats operations (4) and (5) as long as the CK1/CK2 pin inputs clock pulses with the system logic circuit operating normally. (6) If no clock pulse is fed to the CK1 or CK2 pin within the watchdog timer monitor time tWD due to some problem with the system logic circuit, the CTW pin is set to the "L" level threshold voltage VL or less and the MB3793 outputs a reset signal (setting the RESET pin to "L" level from "H" level). The value of VL is always about 0.24 V regardless of the detected voltage. The watchdog timer monitor time tWD is set with the following equation: tWD (ms) B x CTW (F) The value of B is hardly affected by the power supply voltage; it is about 1600 with VCC = 3.0 V to 3.3 V. Document Number: 002-08550 Rev. *D Page 13 of 25 MB3793-27A (7) When a certain period of time tWR has passed (until the CTP pin voltage reaches or exceeds Vth again after recharging the CTP), the MB3793 cancels the reset signal and starts operating the watchdog timer. The watchdog timer monitor reset time tWR is set with the following equation: tWR (ms) D x CTP (F) The value of D is 55 with VCC = 3.3 V and about 50 with VCC = 3.0 V. The MB3793 repeats operations (4) and (5) as long as the CK1/CK2 pin inputs clock pulses. If no clock pulse is input, the MB3793 repeats operations (6) and (7). (8) If VCC is lowered to the fall-time detected voltage (VSL) or less, the CTP pin voltage decreases and the MB3793 outputs a reset signal (setting the RESET pin to "L" level from "H" level). The value of VSL is 2.7 V (9) When VCC reaches or exceeds VSH again, the MB3793 starts charging the CTP. (10) When the CTP pin voltage reaches or exceeds Vth, the MB3793 cancels the reset and restarts operating the watchdog timer. It repeats operations (4) and (5) as long as the CK1/CK2 pin inputs clock pulses. (11) Making the inhibit pin active (setting the INH pin to "H" from "L") forces the watchdog timer to stop operation. This stops only the watchdog timer, leaving the MB3793 monitoring VCC (operations (8) to (10)). The watchdog timer remains inactive unless the inhibit input is canceled. (12) Canceling the inhibit input (setting the INH pin to "L" from "H") restarts the watchdog timer. (13) The reset signal is output when the power supply is turned off to set VCC to VSL or less. Document Number: 002-08550 Rev. *D Page 14 of 25 MB3793-27A 10. Typical Characteristics Detection voltage vs. Operating ambient temperature Power supply current vs. power supply voltage 40 3.0 Ta = -40 C to +85 C 30 Detection voltage VSH, VSL (V) Power supply current ICC (A) 35 25 20 Watchdog timer monitoring (VINH = 0 V) 15 10 MB3793-27A VCC VINH f = 1 kHz Duty = 10 % VL = 0 V VH = VCC MAX 2.8 MAX 3.0 4.0 -40C +25C +85C -2 -3 -4 -5 Reset output current IRESET (mA) Reset output voltage vs. reset output current (N-MOS side) Reset output voltage VRESET (V) Reset output voltage VRESET (V) 3.3 3.2 3.1 3.0 2.9 2.8 2.7 2.6 2.5 2.4 2.3 -40 -20 0 +20 +40 +60 +80 +100 Operating ambient temperature Ta (C) Reset output voltage vs. reset output current (P-MOS side) -1 VSL (Ta = +25 C) (Ta = -40 C to +85 C) Power supply voltage VCC(V) 0 VSL MIN CTP CTW 0.01 F 0.1 F 2.0 VSH MIN 2.6 1.0 TYP TYP 2.7 2.5 0 VSH (Ta = +25 C) 2.9 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 +85C +25C -40C 0 1 2 3 4 5 Reset output current IRESET (mA) Note: Without writing the value clearly, VCC = 3.3 (V), CTP = 0.1 (F), CTW = 0.01 (F). Document Number: 002-08550 Rev. *D Page 15 of 25 MB3793-27A Power-on reset hold time vs. Operating ambient temperature (When Vcc rising) Reset output voltage vs. power supply voltage 7 200 6 5 4 3 Ta = +85 C 2 Ta = +25 C 1 Ta = -40 C 160 1 2 3 100 80 40 Watchdog timer reset time tWR (ms) 14 12 10 MAX 8 TYP 6 4 2 0 MIN Watchdog timer monitoring time tWD (ms) 24 24 Ta = +25 C 0 +20 +40 +60 +80 +100 Operating ambient temperature Ta (C) Document Number: 002-08550 Rev. *D Ta = -40 C to +85 C MAX 22 20 Ta = +25 C 18 TYP 16 14 12 10 MIN 8 6 4 2 0 -40 -20 0 +20 +40 +60 +80 +100 Watchdog timer monitoring time vs. Operating ambient temperature 26 16 -40 -20 Operating ambient temperature Ta (C) 26 18 MIN 20 0 Watchdog timer reset time vs. Operating ambient temperature (When monitoring) 20 TYP 60 4 Ta = -40 C to +85 C MAX 120 Power supply voltage VCC (V) 22 Ta = +25 C 140 0 0 Ta = -40 C to +85 C 180 Power-on reset hold time tPR (ms) Reset output voltage VRESET (V) Pull-up resistance 100 k -40 -20 0 +20 +40 +60 +80 +100 Operating ambient temperature Ta (C) Page 16 of 25 MB3793-27A 104 103 Ta = -40 C 102 Ta = +25 C 101 Ta = +85 C 1 10 -1 10-4 10-3 10-2 10-1 Watchdog timer reset time vs. CTP capacitance Watchdog timer reset time tWR (ms) Power-on reset hold time tPR (ms) Power-on reset hold time vs. CTP capacitance 101 1 102 103 102 Ta = -40 C 101 1 Ta = +25 C Ta = +85 C 10-1 10-2 10-4 10-3 10-2 10-1 1 101 102 Power-on reset hold time setting capacitance Power-on reset hold time setting capacitance CTP (F) CTP (F) Watchdog timer monitoring time tWD (ms) Watchdog timer monitoring time vs. CTW capacitance 103 Ta = -40 C 102 Ta = +25 C 101 1 Ta = +85 C 10-1 10-5 10-4 10-3 10-2 10-1 1 101 Watchdog timer monitoring time setting capacitance CTW (F) Document Number: 002-08550 Rev. *D Page 17 of 25 MB3793-27A 11. Application Example 11.1 Supply voltage monitor and watchdog timer (1-clock monitor) VCC 5 VCC 2 CTW RESET 1 MB3793 RESET CTW* CTP* 3 CTP CK1 8 VCC Microprocessor CK 6 INH GND 4 CK2 7 GND GND *: Use a capacitor with less leakage current. The MB3793 monitors the clock (CK1, CK2) at every other input pulse. Document Number: 002-08550 Rev. *D Page 18 of 25 MB3793-27A 11.2 Supply voltage monitor and watchdog timer stop VCC 5 VCC 6 INH RESET 1 RESET MB3793 2 CTW VCC Microprocessor 1 CK1 8 CK HALT GND CTW* RESET VCC Microprocessor 2 CK HALT GND CTP* 3 CTP GND CK2 7 4 GND *: Use a capacitor with less leakage current. Document Number: 002-08550 Rev. *D Page 19 of 25 MB3793-27A 12. Typical Application VCC 5 VCC 2 CTW RESET 1 RESET MB3793 CTW* CTP* 3 CTP RESET VCC Microprocessor 1 CK1 8 CK CK GND 6 INH GND VCC Microprocessor 2 GND CK2 7 4 GND *: Use a capacitor with less leakage current. 1. Equation of time-setting capacitances (CTP and CTW) and set time tPR [ms] A x CTP [F] tWD [ms] B x CTW [F] tWR [ms] D x CTP [F] Values of A, B, C, and D A B C D Remark 750 1600 0 55 VCC = 3.3 V 700 1600 0 50 VCC = 3.0 V 2. Example (when CTP = 0.1 F and CTW = 0.01 F) time (ms) Document Number: 002-08550 Rev. *D Symbol VCC = 3.3 V VCC = 3.0 V tPR 75 70 tWD 16 16 tWR 5.5 5 Page 20 of 25 MB3793-27A 13. Notes On Use * Take account of common impedance when designing the earth line on a printed wiring board. * Take measures against static electricity. - For semiconductors, use antistatic or conductive containers. - When storing or carrying a printed circuit board after chip mounting, put it in a conductive bag or container. - The work table, tools and measuring instruments must be grounded. - The worker must put on a grounding device containing 250 k to 1 M resistors in series. * Do not apply a negative voltage - Applying a negative voltage of -0.3 V or less to an LSI may generate a parasitic transistor, resulting in malfunction. 14. Ordering Information Part number Package Marking Remarks MB3793-27APF-E1 8-pin Plastic SOP (SOE008) 3793-Y - MB3793-27APNF-E1 8-pin Plastic SOP (SOB008) 3793-Y - 15. 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. Document Number: 002-08550 Rev. *D Page 21 of 25 MB3793-27A 16. Package Dimensions b 0.39 0.47 0.55 L 0.45 0.60 0.75 b A' 1 , 3 $ 1 ' (( +7 7$ & 7 , 1' (1 , 6 ($ 5( 35 $ 7 2; 1( ' 6 1 , , 7 , ( + ) /7 1 /, $+ 17 2, ,: 7 3' 2( 7 6 $ , & ( 52 / 8 7( $% (7 )6 8 5 (0 ) 05 $( , +, ) &7 1 6 , ( +' 7, 2 756 21 ( 2 1' $1, 7 /$$ 35 ' , * /8 1 * ,( , 7 +) $7 1 ( 2 6*& 1 , ( +'( 78* /$ 0 &. 2;& 5($ 3 ) < ' 1 ( &2: 1%2 $' 7( 6*< , $, 7 '. 9 /&$ $$& & 3 , 1 7 ( 5+2 (77 91 1( ( 20 +7 ( 71 , & 6 $21 3$ ' + (7 1 16( , ( ) / (:$ '20 / 6 5 ,( ( ++ $77 Page 22 of 25 Document Number: 002-08550 Rev. *D 1 2 , 6 1 ( /( 7 %0 2 , $' 2 ) : E ( 2 / + /( 7 $+ 7 ) 1 2 ) 22 6 , 6 6 8 , 86 ' 5( $ 7& 5 2; 5( 5 ( 3 1 : , 5 2 $/ / %$ 07 ( $2 + '7 7 (P 1 +P 2 7 ' ( 1( 2 ' 7 ( ,$ 8% 7 / , & '2 &/ 1/1/ ,$2 ( + 7 & % 26 / $ 7 11 2 2, 6 1 (,5 ( 6 28 7< '5$$ 0 70 E 5 20 158$ 23 % ,00 5 , 6 ; $ 1$$' (%0 ( 00+ ,$7 ''$7 L 2 0.13 DETAIL A SIDE VIEW c P P 1 ( ( : 7 ( % ' $ ( / ( + 7 ) 2 1 2 , 7 & ( 6 7 $ / ) 3 ( , +7 7 ' $ 2 7( / < /( 3+ 37 $ 0 1 2 25 ,) 6 1P (P 0 , ' ( +2 77 1.25 REF 0.25 BSC ' ( , ) , & ( 3 6 ( + 7 5 2 ) 6 1 2 , 7 , 6 2 3 / $ 1 , 0 5 ( 7 ) 2 5 ( % 0 8 1 0 + 87 0* , ; 1 $( / 0 ( ( +* 7$ . 6 & , $ 13 L 1 + 0 8 7 $ ' 7 $ ' ( 1 , 0 5 ( 7 ( ' ( % 2 7 % $ 6 0 8 7 $ ' 0.20 0 L2 DETAIL A 8 5.30 BSC < *' 12 , % ' 0 & 8, 2 77 /7 & 6 76+1 $ 226, / %0$7 3 5/8 ( ) ( % *(' + 7 7 $8 /+ .2 26) & 0$2 $( / 3+) )0 7 2 ( 2 ' +( 7 7 $7 7$9( , 2 1' 6/% $(85 +1/(' 7,&71 0;1$ 5 , 5 ( (( '3 /7 < 12 /( '$ 7 $' 2( 0 %6+ 6( 57 & 5, 5 ( $781 % % 6 ( < ($ (( $ /7 : 0G 3$ Q 7 D 3 ( (*% + 2' 776+ 5 *) ( & 1 57 2 *, 8$ $1 6 % .2( 0 ,056 &6 , $1 ($0 3( 5% (< ( 7 0 1 ; + +, 7'(7$ E1 ( ' ' ( 8 1 / , &60 115 , 2( 7,7 6 ( 28 ' 15 7 ( 6 5 (2$ 25 '31 2 5 , (26 *1 + ( 1 ,60 $ 1 , /' 2) , 6 ( 1' $ (( G Q 0/ D ,5 ' ' ( +7( 61' $, 6 , / 1 ) 5 2 , ' ( /63 28P 5 07 P 2 ( '5 83 /5 &2 ' 1 ( ,+ ' 6( $& * ; / 1) ( , + 1' 7 2$20 ,(18 6 7 1// 5 $ /' (($ 07+ 7 ,1 6$ ', 7.80 BSC 0 < ( 0 6 $ 5 ( 3 * 1 , & 1 $ 5 ( / 2 7 ' 1 $ * 1 , 1 2 , 6 1 ( 0 , ' E 5 ( 7 ( 0 , / / , 0 1 , ( 5 $ 6 1 2 , 6 1 ( 0 , ' / / $ 6.35 BSC 6 ( 7 2 1 D 1.27 BSC e 2.25 A MAX. NOM. MIN. 0.20 0.05 A1 0.25 H D ; DIMENSION SYMBOL 8 C A-B D 0.13 b BOTTOM VIEW TOP VIEW c A GAUGE PLANE A E E1 SECTION A-A' L L1 10 ; 4 SEATING PLANE 0.10 C e A1 0.40 C A-B D 5 5 0.25 H D Package Code: SOE008 D 4 INDEX AREA 11. JEDEC SPECIFICATION NO. REF : N/A 002-15857 Rev. ** MB3793-27A Package Code: SOB008 0.45 0.52 0.60 0.75 L 2 0.25 BSC 1.27 BSC. h 0.40 BSC. Page 23 of 25 Document Number: 002-08550 Rev. *D 2 756 21 ( 2 1' , $17 /$$ 3 '5 , * /8 1 * ,( , 7 ) $+1 (72 6*& 1 , ( ( +'* 78$ 0/. & 2;& 5($ 3 )< ' 1 ( &2: 1%2 $' 7( 6*< , $, 7 '. 9 & / $ $$& &3 , 1 7 ( 5+2 (77 91 1( ( 20 + 77 ( 1& 6 , $21 3$ ' + (7 1 16( , )(/ (:$ '20 / 6 5 ( , ( + + $77 e 1 , 3 $ 1 ' (( +7 7$ & 7 , 1' (1 , 6 ($ 5( 35 $ 7 2; 1( ' 6 1 , , 7 , ( + ) /7 1 / , $+ 17 2, ,: 7 3' 2( 7 6 $ , & ( 52 / 8 7( $% (7 )6 8 5 (0 ) 05 ( $, +) , &7 1 6 , ( +' 7, L 1 1.05 REF L 0.44 0.36 b 1 2 , 6 1 (( /0 7 %, 2 $' 2 ) : E 2 ( / + /( 7 $+ 7 ) 1 2 ) 22 6 , 6 8 6 , 86 ' 5( $ 7& 5 2; 5( 5 3 ( 1 , : 5 2 $/ / %$ 7 02 ( + $7 7 ' P 1 ( +P 2 7 ' ( 1( 2 '( 7 , 8% $ 7& / , ' &/ 2 1/1/ ,$2 +&( 7 % 26/ 7 1 1$2 2, 6 51 ,( (6 287< ' $$ 5 7 00 E 5 20 58 $ 1 230% , 5,0 6 ;$ 1$$' (%0( 00 + ,$7 ''$7 c P P 1 ( ( : 7 ( % ' $ ( / ( + 7 ) 2 1 2 , 7 & ( 6 7 $ / ) 3 (, +7 7' $ 2 7( / < /( 3+ 37 $ 0 1 2 25 ,) 6 1P (P 0 , ' ( +2 77 8 0.25 ' ( , ) , & ( 3 6 ( + 7 5 2 ) 6 1 2 , 7 , 6 2 3 / $ 1 , 0 5 ( 7 ) 2 5 ( % 0 8 1 0 8+ 07 ,* ; 1 $( / 0 ( ( +* 7$ . 6 & , $ 13 0 0.15 + 0 8 7 $ ' 7 $ ' ( 1 , 0 5 ( 7 ( ' ( % 2 7 % $ 6 0 8 7 $ ' b c 3.90 BSC < *' 12 , % ' 0 & 8, 2 77/7 76+&6 2261$ , / % $7 0 3 /8 (5) ( %+ *(' 7 $7/ + .82 6) 2 & 0$2 $( 3+ )/0 ) 7 2' 2 ( + 7 ( 7 $ 7$9( 7 ' ,/2 6 1 % $(85 +1/(' 7,&71 1$ 0;, 5 (5( /('3 /7<12 $('$7 0'2 ( 6 % 5+ 6( 5 & 5, 7 ( $781 % 6%( <$ ( ( $(/ 7: G 0Q 3$ 7 D (*( 3 +% 2' 76+ 7 5 * ) ( & *1257 , 8$ $1 6 %0 .2( &, 5 6 $60$, 31(%0 (5< ( 07(1 ; + +, 7'(7$ E1 ( ' ' ( 8 1 / , &60 115 , 2( , 7 7 26( 8 ' 15 7 ( 6 5 (2$ 25 '31 2 5, ( 6 2 1 * 1+( 6 , 0 $, 1 2/' ,) 6 ( 1' ($G Q 0(D ,/ 5 ' ' ( 7 +1 ( 6, ' $ 6 , /1 )25 , ' ( /63 28P 05P 7 2 ( '5 83 / 5 &2 ' 1 ( ,+ ( ' 6 $& * /; 1) (+ , 1' 7 2$20 ,(18 6 /7 / 15 $ ((/' 0 $7 + ,76 1 $ ', 6.00 BSC. 0 < ( 0 6 $ 5 ( 3 * 1 , & 1 $ 5 ( / 2 7 ' 1 $ * 1 , 1 2 , 6 1 ( 0 , ' E 5 ( 7 ( 0 , / / , 0 1 , ( 5 $ 6 1 2 , 6 1 ( 0 , ' / / $ 5.05 BSC. 6 ( 7 2 1 1.30 D 1.50 A2 1.40 0.05 0.25 A1 8 SIDE VIEW L2 A GAUGE PLANE BOTTOM VIEW SIDE VIEW 5 45 E1 E A' e SECTION A-A' C A-B D 0.13 b h DIMENSIONS 0.25 H D ; SYMBOL ; 4 L L1 10 SEATING PLANE 0.10 C A1 0.25 H D 1.75 A MAX. NOM. MIN. DETAIL A A2 A 5 0.20 C A-B D D 4 INDEX AREA TOP VIEW DETAIL A 11. JEDEC SPECIFICATION NO. REF : N/A 002-15856 Rev. ** MB3793-27A 17. Major Changes Spansion Publication Number: MB3793-27A_DS04-27404 Page Section Change Results Revision 4.0 1 Company name and layout design change - Deleted "There is also a mask option that can detect voltages of 4.9 V to 2.4 V in 0.1-V steps." DESCRIPTION NOTE: Please see "Document History" about later revised information. Document History Document Title: MB3793-27A Power Voltage Monitoring IC with Watchdog Timer Document Number: 002-08550 Revision ECN Orig. of Change Submission Date ** - TAOA 01/30/2015 Migrated to Cypress and assigned document number 002-08550. No change to document contents or format. *A 5169535 TAOA 04/01/2016 Updated to Cypress template Description of Change *B 5592786 HIXT 01/23/2017 Updated Pin Assignment: Change the package name from FPT-8P-M01 to SOE008 Change the package name from FPT-8P-M02 to SOB008 Updated Ordering Information: Change the package name from FPT-8P-M01 to SOE008 Change the package name from FPT-8P-M02 to SOB008 Updated Package Dimensions: Updated to Cypress format Deleted "Marking Format (Lead Free version)" Deleted "Labeling Sample (Lead free version)" Deleted "MB3793-27APF- E1, MB3793-27APNF- E1 Recommended Conditions of Moisture Sensitivity Level" Deleted the part numbers, MB3793-27APF- and MB3793-27APNF- , from Ordering Information Deleted the words in the Remarks, "Lead Free version", from Ordering Information *C 5790102 MASG 06/29/2017 Adapted Cypress new logo. *D 6406322 YOST 12/10/2018 Obsoleted. 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You shall indemnify and hold Cypress harmless from and against all claims, costs, damages, and other liabilities, including claims for personal injury or death, arising from or related to any Unintended Uses of Cypress products. Cypress, the Cypress logo, Spansion, the Spansion logo, and combinations thereof, WICED, PSoC, CapSense, EZ-USB, F-RAM, and Traveo are trademarks or registered trademarks of Cypress in the United States and other countries. For a more complete list of Cypress trademarks, visit cypress.com. Other names and brands may be claimed as property of their respective owners.. Document Number: 002-08550 Rev. *D Revised December 10, 2018 Page 25 of 25