R EM MICROELECTRONIC-MARIN SA V6301 Ultra Low Power 3-Pin Voltage Surveillance with Time-out Typical Operating Configuration Features n Clear microprocessor restart after power up n Processor reset at power down n Reset output guaranteed down to VDD = 1 V VDD n Low power consumption: typ. 3 mA at VDD = 5 V n n n n n n n O - 40 to +85 C temperature range O On request extended temperature range, -40 to +125 C On-chip oscillator No external components required Push-pull or Open drain output TO-92, SOT-23 5L packages Pin compatible with DS 1233 A in TO-92 VDD VDD RES or RES V6301 RES or RES VSS Microprocessor VSS GND Description For Open drain version: The V6301 is a CMOS device which monitors the supply voltage of any electronic system, and generates the appropriate Reset signal. The thres hold defines the minimum allowed voltage which guarantees the good functionality of the system. As long as VDD stays upside this voltage level, the output stays inactive. Fig. 1 Pin Assignment TO-92 If VDD drops below VTH, the output gets active. When V DD rises View Flat Front above VTH, the output remains active for an additional 290 ms (typ.). This al lows the system to stabilize before getting fully active. The threshold v oltage may be obtained in differ ent versions: 2.0 V, 2.4 V, 2.8 V, 3.5 V, 4.0 V, 4.5 V. V6301 1 2 3 Applications VDD RES VSS or RES All microprocessor applications where an automatic restart is required: n n n n n n Computer electronics White / Brown goods Automotive electronics Industrial electronics Telecom systems Hand-held systems SOT-23 5L NC 3 VSS NC 2 1 V6301 4 RES or RES 5 VDD Fig. 2 1 R V6301 Absolute Maximum Ratings Parameter Symbol Voltage at VDD to VSS VDD Vmin Vmax TSTO Min. voltage at RES or RES Max. voltage at RES or RES Storage temperature range Handling Procedures This device has built-in protection against high static voltages or electric fields; however, anti-static precautions must be taken as for any other CMOS component. Unless otherwise specified, proper operation can only occur when all terminal voltages are kept within the supply voltage range. Conditions -0.3V to+10 V VSS - 0.3 V VDD + 0.3 V -65O to +150 OC Operating Conditions Table 1 Parameter Stresses above these listed maximum ratings may cause permanent damage to the device. Exposure beyond specified operating conditions may affect device reliability or cause malfunction. Symbol Min. 1) Operating temperature Positive supply voltage TA VDD Typ . Max. Units -40 1 +125 8 O C V Table 2 1) The maximum operating temperature is confirmed by sampling at initial device qualification. Electrical Characteristics TA = -40 to +85 OC, unless otherwise specified Parameter Supply current Symbol 1) Threshold voltage Threshold hysteresis RES Output Low Level RES Output High Level Output leakage current 1) 2) 2) IDD IDD IDD VTH VTH VTH VTH VTH VTH VHYS VOL VOL VOL VOH VOH VOH ILEAK Test Conditions VDD = 2 V VDD = 5 V VDD = 8 V Version: A,G,M Version: B,H,N Version: C,I,O Version: D,J,P Version: E,K,Q Version: F,L,R VDD = 5 V, IOL = 8 mA VDD = 3 V, IOL = 4 mA VDD = 1 V, IOL = 50 mA VDD = 5 V, IOH = -8 mA VDD = 3 V, IOH = -4 mA VDD = 1 V, IOH = -100 mA VDD = 8 V Min. 1.77 2.09 2.48 3.11 3.55 4.05 Min. at 25 oC 1.84 2.18 2.59 3.23 3.70 4.22 4.3 2.3 850 Typ. Max. at 25 oC Max. Units 1.5 3.0 5.2 1.95 2.32 2.73 3.42 3.88 4.42 25 175 140 20 4.5 2.6 950 0.05 2.1 3.9 6.8 2.04 2.41 2.86 3.59 4.08 4.67 3.1 5.7 10.0 2.17 2.55 3.03 3.80 4.32 4.95 mA mA mA V V V V V V mV mV mV mV V V mV mA 400 300 90 1 Table 3 RES or RES open Only for Open drain versions Timing Characteristics VDD = 5.0 V, TA = -40 to +85OC, unless otherwise specified Parameter Power on reset time 3) Sensitivity 3) Reaction time 3) Symbol tPOR tSEN tR Test Conditions for VDD = 5 V to 3 V in 5 ms for VDD = 5 V to 3 V in 5 ms Tested on versions with VTH higher than 3 V Min. Typ. 140 20 22 290 0.8 tR 75 Max. 560 150 Units ms ms ms Table 4 2 R V6301 Timing Waveforms VDD tSEN VTH 1V Logic “1” tPOR tR tPOR t RES Logic “0” t Logic “1” RES Logic “0” Fig.3 t Block Diagram VDD Voltage Reference - Reset Logic + RES or RES Timer Oscillator Vss Fig.4 Pin Description TO-92 Pin 1 2 3 SOT-23 5L Name Function VDD RES or RES VSS Positive Supply Reset output Supply ground Pin 1 2 3 4 5 Table 5 Name Function NC VSS NC RES or RES VDD No connection Supply ground No connection Reset output Positive supply Table 6 3 R V6301 Ordering Information Version letter definition The V6301 is available with Push-pull or Open output stage and Reset active low or high. Output stage Ordering form: V6301 <version letter> < packaging> Push-pull, Reset active low A B) 1) Push-pull, Reset active high G H 1) 1) Open drain, Reset active low M N 2.0 Threshold Voltage [V] 2.4 2.8 3.5 4.0 4.5 1 Example: Smart reset with: - Reset active low C I O D J P - Open drain output E 1) K 1) Q F L R Table 7 - 2.8 V threshold Chip form and SOT-223 on request Non-stock items, minimum order 30 K pieces. 1) - TO-92 package V6301 O TO-92 When ordering, please specify the complete part number. EM Microelectronic-Marin SA cannot assume responsibility for use of any circuitry described other than circuitry entirely embodied in an EM Microelectronic-Marin SA product. EM Microelectronic-Marin SA reserves the right to change the circuitry and specifications without notice at any time. You are strongly urged to ensure that the information given has not been superseded by a more up-to-date Ó 2000 EM Microelectronic-Marin SA,10/00, Rev. B/316 4