Global Mixed-mode Technology Inc. G690/G691 Microprocessor Reset IC Features General Description Precision Monitoring of +3V, +3.3V, and +5V The G690/G691 are microprocessor (µP) supervisory circuits used to monitor the power supplies in µP and digital systems. They provide excellent circuit reliability and low cost by eliminating external components and adjustments when used with +5V, +3.3V, +3.0V- powered circuits. Power-Supply Voltages Fully Specified Over Temperature Available in Three Output Configurations Push-Pull RESET Output (G690L) Push-Pull RESET Output (G690H) Open-Drain RESET Output (G691L) 140ms min Power-On Reset Pulse Width 10µA Supply Current Guaranteed Reset Valid to VCC = +1V Power Supply Transient Immunity No External Components 3-Pin SOT89, SOT23 and SC70 Packages These circuits perform a single function: they assert a reset signal whenever the VCC supply voltage declines below a preset threshold, keeping it asserted for at least 140ms after VCC has risen above the reset threshold. Reset thresholds suitable for operation with a variety of supply voltages are available. The G691L has an open-drain output stage, while the G690 have push-pull outputs. The G691L’s open-drain RESET output requires a pull-up resistor that can be connected to a voltage higher than VCC. The G690L have an active-low RESET output, while the G690H has an active-high RESET output. The reset comparator is designed to ignore fast transients on VCC, and the outputs are guaranteed to be in the correct logic state for VCC down to 1V. Applications Computers Controllers Intelligent Instruments Critical µP and µC Power Monitoring Portable / Battery-Powered Equipment Automotive Low supply current makes the G690/G691 ideal for use in portable equipment. The G690/G691 are available in 3-pin SOT89 or SOT23 or SC70 packages. Pin Configuration Typical Application VCC 3 VCC VCC RPULL-UP* G690/G691 RESET (RESET) 1 2 SOT 89 3 1 GND 2 µP RESET INPUT GND SOT23/SC70 *G691 ONLY TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 1.3 Oct 31, 2002 1 G690/G691 Global Mixed-mode Technology Inc. Ordering Information PART G690LxxxTxx G690HxxxTxx G691LxxxTxx TEMP. RANGE -40°C ~ +105°C -40°C ~ +105°C -40°C ~ +105°C OUTPUT TYPE Push-Pull Active Low Push-Pull Active High Open-Drain Order Number Identification G69XX XXX TX X Pin Option Package Type Threshold Voltage Option Part Number PART NUMBER THRESHOLD VOLTAGE OPTION G690L : Push-Pull Active Low Output G690H : Push-Pull Active High Output G691L : Open-Drain Output * xxx specifies the threshold voltage. e.g. 263 denotes the 2.63V threshold voltage. PACKAGE TYPE PIN OPTION T2 : SOT 89 T7 : SOT 23 1 1 : RESET 2 GND 3 VCC T9 : SC 70 2 : RESET VCC GND 3 : GND RESET VCC 4 : GND VCC RESET 5 : VCC GND RESET 6 : VCC RESET GND *RESET for G690H TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 1.3 Oct 31, 2002 2 Global Mixed-mode Technology Inc. G690/G691 Absolute Maximum Ratings Terminal Voltage (with respect to GND) VCC.……………………………..…….…….-0.3V to +6.0V RESET, RESET (push-pull)....…....-0.3V to (VCC + 0.3V) Continuous Power Dissipation (TA = +70°C) 3-Pin SOT89……………………………………….500mW 3-Pin SOT23 (derate 4mW/°C above +70°C)….320mW 3-Pin SC70 (derate 2.17mW/°C above +70°C)..174mW Operating Temperature Range …........-40°C to +105°C Storage Temperature Range..….….….-65°C to +150°C Lead Temperature (soldering, 10s) ..…....…......+300°C RESET (open drain)...….......................-0.3V to +6.0V Input Current, VCC ............................….................20mA Output Current, RESET, RESET ........................20mA Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Electrical Characteristics (VCC = full range, TA = -40°C to +105°C, unless otherwise noted. Typical values are at TA = +25°C, VCC = 5V for 463/438/400 versions, VCC= 3.3V for 308/293 versions, and VCC = 3V for 263 version.) (Note 1) PARAMETER SYMBOL TA = 0°C +70°C TA = -40°C +105°C VCC Range Supply Current (SOT23) CONDITION ICC TA = -40°C +105°C G69_ _463_ G69_ _438_ G69_ _400_ Reset Threshold VTH G69_ _308_ G69_ _293_ G69_ _263_ MIN TYP MAX UNITS 1.0 1.2 VCC<5.5V, G69_ _463/438/400_ 22 VCC<3.6V, G69_ _308/293/263_ TA = +25°C TA = -40°C to +85°C TA = +85°C to +105°C TA = +25°C TA = -40°C to +85°C TA = +85°C to +105°C TA = +25°C TA = -40°C to +85°C TA = +85°C to +105°C TA = +25°C TA = -40°C to +85°C TA = +85°C to +105°C TA = +25°C TA = -40°C to +85°C TA = +85°C to +105°C TA = +25°C TA = -40°C to +85°C TA = +85°C to +105°C 10 4.63 4.56 4.50 4.40 4.31 4.25 4.16 3.93 3.89 3.80 3.04 3.00 2.92 2.89 2.85 2.78 2.59 2.55 2.50 4.38 4.00 3.08 2.93 2.63 5.5 5.5 30 23 4.70 4.75 4.86 4.45 4.50 4.56 4.06 4.10 4.20 3.11 3.15 3.23 2.96 3.00 3.08 2.66 2.70 2.76 V µA V TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 1.3 Oct 31, 2002 3 G690/G691 Global Mixed-mode Technology Inc. Electrical Characteristics (Continued) (VCC = full range, TA = -40°C to +105°C, unless otherwise noted. Typical values are at TA = +25°C, VCC = 5V for 463/438/400 versions, VCC= 3.3V for 308/293 versions, and VCC = 3V for 263 version.) (Note 1) PARAMETER SYMBOL Reset Threshold Tempco VCC to Reset Delay (Note 2) CONDITION MIN TYP MAX UNITS 40 7 VCC = VTH to (VTH – 100mV) Reset Active Timeout Period RESET Output Current Low (push-pull active low, and open-drain active-low, G690L and G691L) RESET Output Current High (push-pull active low, G690L) RESET Output Current Low (push-pull active high, G690H) RESET Output Current High (push-pull active high, G690H) RESET Open-Drain Output Leakage Current (G691L) IOL IOH IOL IOH ppm/°C µs VCC = VTH max, G69_ _ 463/438/400 280 640 VCC = VTH max, G69_ _308/293/263 140 550 VCC = 2.5V, V RESET = 0.5V VCC = 5V, V RESET = 4.5V, G690L463/438/400 VCC = 3.3V, V RESET = 2.8V, G690L308/293 VCC = 3V, V RESET = 2.5V, G690L263 VCC = 5V, VRESET = 0.5V, G690H463/438/400 VCC = 3.3V, VRESET = 0.5V, G690H308/293 VCC = 3V, VRESET = 0.5V, G690H263 VCC = 2.5V, VRESET = 2V ms 8 mA 4.5 mA 3 2 16 mA 12 10 2 mA 1 VCC > VTH, RESET deasserted µA Note 1: Production testing done at TA = +25°C; limits over temperature guaranteed by design. Note 2: RESET output is for G690L/G691L; While RESET output is for G690H. Selector Guide PART/SUFFIX RESET THRESHOLD (V) OUTPUT TYPE G691L463Tx1 G691L438Tx1 G691L400Tx1 G691L308Tx1 G691L293Tx1 G691L263Tx1 G690H463Tx1 G690H438Tx1 G690H400Tx1 G690H308Tx1 G690H293Tx1 G690H263Tx1 G690L463Tx1 G690L438Tx1 G690L400Tx1 G690L308Tx1 G690L293Tx1 G690L263Tx1 4.63 4.38 4.00 3.08 2.93 2.63 4.63 4.38 4.00 3.08 2.93 2.63 4.63 4.38 4.00 3.08 2.93 2.63 Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Push-Pull RESET Push-Pull RESET Push-Pull RESET Push-Pull RESET Push-Pull RESET Push-Pull RESET Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull SOT 89 TOP MARK SOT 23 SC70 689Fx 689Ex 689Dx 689Cx 689Bx 689Ax 688Lx 688Kx 688Jx 688Ix 688Hx 688Gx 688Fx 688Ex 688Dx 688Cx 688Bx 688Ax 689Fx 689Ex 689Dx 689Cx 689Bx 689Ax 688Lx 688Kx 688Jx 688Ix 688Hx 688Gx 688Fx 688Ex 688Dx 688Cx 688Bx 688Ax 689Fx 689Ex 689Dx 689Cx 689Bx 689Ax 688Lx 688Kx 688Jx 688Ix 688Hx 688Gx 688Fx 688Ex 688Dx 688Cx 688Bx 688Ax Note: T2: SOT89; T7: SOT23; T9: SC70 TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 1.3 Oct 31, 2002 4 G690/G691 Global Mixed-mode Technology Inc. Selector Guide PART/SUFFIX RESET THRESHOLD (V) OUTPUT TYPE G691L463Tx2 G691L438Tx2 G691L400Tx2 G691L308Tx2 G691L293Tx2 G691L263Tx2 G690H463Tx2 G690H438Tx2 G690H400Tx2 G690H308Tx2 G690H293Tx2 G690H263Tx2 G690L463Tx2 G690L438Tx2 G690L400Tx2 G690L308Tx2 G690L293Tx2 G690L263Tx2 4.63 4.38 4.00 3.08 2.93 2.63 4.63 4.38 4.00 3.08 2.93 2.63 4.63 4.38 4.00 3.08 2.93 2.63 Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Push-Pull RESET Push-Pull RESET Push-Pull RESET Push-Pull RESET Push-Pull RESET Push-Pull RESET Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull SOT 89 TOP MARK SOT 23 SC70 687Fx 687Ex 687Dx 687Cx 687Bx 687Ax 686Lx 686Kx 686Jx 686Ix 686Hx 686Gx 686Fx 686Ex 686Dx 686Cx 686Bx 686Ax 687Fx 687Ex 687Dx 687Cx 687Bx 687Ax 686Lx 686Kx 686Jx 686Ix 686Hx 686Gx 686Fx 686Ex 686Dx 686Cx 686Bx 686Ax 687Fx 687Ex 687Dx 687Cx 687Bx 687Ax 686Lx 686Kx 686Jx 686Ix 686Hx 686Gx 686Fx 686Ex 686Dx 686Cx 686Bx 686Ax SOT 89 TOP MARK SOT 23 SC70 691Fx 691Ex 691Dx 691Cx 691Bx 691Ax 690Lx 690Kx 690Jx 690Ix 690Hx 690Gx 690Fx 690Ex 690Dx 690Cx 690Bx 690Ax 691Fx 691Ex 691Dx 691Cx 691Bx 691Ax 690Lx 690Kx 690Jx 690Ix 690Hx 690Gx 690Fx 690Ex 690Dx 690Cx 690Bx 690Ax 691Fx 691Ex 691Dx 691Cx 691Bx 691Ax 690Lx 690Kx 690Jx 690Ix 690Hx 690Gx 690Fx 690Ex 690Dx 690Cx 690Bx 690Ax Note: T2: SOT89; T7: SOT23; T9: SC70 Selector Guide PART/SUFFIX RESET THRESHOLD (V) OUTPUT TYPE G691L463Tx3 G691L438Tx3 G691L400Tx3 G691L308Tx3 G691L293Tx3 G691L263Tx3 G690H463Tx3 G690H438Tx3 G690H400Tx3 G690H308Tx3 G690H293Tx3 G690H263Tx3 G690L463Tx3 G690L438Tx3 G690L400Tx3 G690L308Tx3 G690L293Tx3 G690L263Tx3 4.63 4.38 4.00 3.08 2.93 2.63 4.63 4.38 4.00 3.08 2.93 2.63 4.63 4.38 4.00 3.08 2.93 2.63 Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Push-Pull RESET Push-Pull RESET Push-Pull RESET Push-Pull RESET Push-Pull RESET Push-Pull RESET Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Note: T2: SOT89; T7: SOT23; T9: SC70 TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 1.3 Oct 31, 2002 5 G690/G691 Global Mixed-mode Technology Inc. Selector Guide PART/SUFFIX RESET THRESHOLD (V) OUTPUT TYPE G691L463Tx6 G691L438Tx6 G691L400Tx6 G691L308Tx6 G691L293Tx6 G691L263Tx6 G690H463Tx6 G690H438Tx6 G690H400Tx6 G690H308Tx6 G690H293Tx6 G690H263Tx6 G690L463Tx6 G690L438Tx6 G690L400Tx6 G690L308Tx6 G690L293Tx6 G690L263Tx6 4.63 4.38 4.00 3.08 2.93 2.63 4.63 4.38 4.00 3.08 2.93 2.63 4.63 4.38 4.00 3.08 2.93 2.63 Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Open-Drain Push-Pull RESET Push-Pull RESET Push-Pull RESET Push-Pull RESET Push-Pull RESET Push-Pull RESET Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull SOT 89 TOP MARK SOT 23 SC70 685Fx 685Ex 685Dx 685Cx 685Bx 685Ax 684Lx 684Kx 684Jx 684Ix 684Hx 684Gx 684Fx 684Ex 684Dx 684Cx 684Bx 684Ax 685Fx 685Ex 685Dx 685Cx 685Bx 685Ax 684Lx 684Kx 684Jx 684Ix 684Hx 684Gx 684Fx 684Ex 684Dx 684Cx 684Bx 684Ax 685Fx 685Ex 685Dx 685Cx 685Bx 685Ax 684Lx 684Kx 684Jx 684Ix 684Hx 684Gx 684Fx 684Ex 684Dx 684Cx 684Bx 684Ax Note: T2: SOT89; T7: SOT23; T9: SC70 TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 1.3 Oct 31, 2002 6 G690/G691 Global Mixed-mode Technology Inc. Typical Operating Characteristics (VCC = full range, TA = -40°C to +105°C, unless otherwise noted. Typical values are at TA = +25°C, VCC = 5V for 463/438/400 versions, VCC= 3.3V for 308/293 versions, and VCC = 3V for 263 version.) Supply Current vs.Temperature (No Load) Power-up Reset Timeout vs. Temperature 600 Power-up Reset Timeout (ms) Supply Current (µA) 20 G69_ _ 463/438/400, Vcc=5V 15 10 G69_ _ 308/293/263, Vcc=3.3V 5 G69_ _ 463/438/400/308/293/263, Vcc=1V G69_ _ 463/438/400 500 400 300 G69_ _ 308/293/263 200 100 0 0 -40 -20 0 20 40 60 -40 80 -20 Temperature (°C) 20 40 60 80 Temperature (°C) Power-down Reset Delay vs. Temperature (G69_ _308/293/263) Power-down Reset Delay vs. Temperature (G69_ _463/438/400) 140 70 VOD = VTH - VCC Power-Down Reset Delay (u s) Power-down Reset Delay (us) 0 60 50 VOD = 10mV 40 VOD = 20mV 30 20 VOD = 100mV 10 VOD = 200mV 0 -40 -20 0 20 40 VOD = VTH - VCC 120 100 VOD = 10mV 80 VOD = 20mV 60 40 VOD = 100mV 20 0 60 -40 80 Temperature (°C) -20 0 20 40 60 80 Temperature (°C) Normalized Reset Threshold vs. Temperature 1.002 Normalized Threshold 1 0.998 0.996 0.994 0.992 0.99 0.988 -40 -20 0 20 40 60 80 Temperature (°C) TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 1.3 Oct 31, 2002 7 Global Mixed-mode Technology Inc. G690/G691 Pin Description PIN NAME 1 GND FUNCTION Ground RESET Output remains low while VCC is below the reset threshold, and for at least 140ms after VCC rises above the reset threshold. RESET Output remains high while VCC is below the reset threshold, and for at least 140ms after VCC rises above the reset threshold. (G691L/G690L) 2 RESET (G690H) VCC 3 Supply Voltage (+5V, +3.3V, +3.0V) Detailed Description Applications Information A microprocessor’s (µP’s) reset input starts the µP in a known state. The G691L/G690L/G690H assert reset to prevent code-execution errors during power-up, power-down, or brownout conditions. They assert a reset signal whenever the VCC supply voltage declines below a preset threshold, keeping it asserted for at least 140ms after VCC has risen above the reset threshold. The G691L uses an open-drain output, and the G690L/G690H have a push-pull output stage. Connect a pull-up resistor on the G691L’s RESET output to any supply between 0 and 5.5V. Negative-Going VCC Transients In addition to issuing a reset to the µP during power-up, power-down, and brownout conditions, the G691L/G690H/G690L are relatively immune to shortduration negative-going VCC transients (glitches). Figure 1 shows typical transient duration vs. reset comparator overdrive, for which the G691L/G690H/ G690L do not generate a reset pulse. The graph was generated using a negative-going pulse applied to VCC, starting 0.5V above the actual reset threshold and ending below it by the magnitude indicated (reset comparator overdrive). The graph indicates the maximum pulse width a negative-going VCC transient can have without causing a reset pulse. As the magnitude of the transient increases (goes farther below the reset threshold), the maximum allowable pulse width decreases. Typically, for the G69_ _463 and G69_ _438, a VCC transient that goes 100mV below the reset threshold and lasts 7µs or less will not cause a reset pulse. A 0.1µF bypass capacitor mounted as close as possible to the VCC pin provides additional transient immunity. 600 Maximum Transient Duration(us) 500 400 300 200 G69_ _ 463/438/400 Ensuring a Valid Reset Output Down to VCC = 0 When VCC falls below 1V, the G690 RESET output no longer sinks current—it becomes an open circuit. Therefore, high-impedance CMOS logic inputs connected to RESET can drift to undetermined voltages. This presents no problem in most applications since most µP and other circuitry is inoperative with VCC below 1V. However, in applications where RESET must be valid down to 0V, adding a pull-down resistor to RESET causes any stray leakage currents to flow 100 G69_ _ 308/293/263 0 1 10 100 1000 Reset Comparator Overdrive, VTH - V CC (mV) Figure 1. Maximum Transient Duration Without Causing a Reset Pulse vs. Reset Comparator Overdrive to ground, holding RESET low (Figure 2). R1’s value is not critical; 100kΩ is large enough not to load RESET and small enough to pull RESET to ground. VCC G690 A 100kΩ pull-up resistor to VCC is also recommended for the G691L if RESET is required to remain valid for VCC < 1V. RESET GND R1 100k Figure2. RESET Valid to VCC = Ground Circuit TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 1.3 Oct 31, 2002 8 Global Mixed-mode Technology Inc. Interfacing to µPs with Bidirectional Reset Pins Since the RESET output on the G691L is open drain, this device interfaces easily with µPs that have bidirectional reset pins, such as the Motorola 68HC11. Connecting the µP supervisor’s RESET output di- VCC VCC VCC RPULL-UP µP G691 rectly to the microcontroller’s (µC’s) RESET pin with a single pull-up resistor allows either device to assert reset (Figure 3). RESET MOTOROLA INPUT 68HCXX RESET GND GND G691L Open-Drain RESET Output Allows Use with Multiple Supplies Generally, the pull-up connected to the G691L will connect to the supply voltage that is being monitored at the IC’s VCC pin. However, some systems may use the open-drain output to level-shift from the monitored supply to reset circuitry powered by some other supply (Figure 4). Note that as the G691L’s VCC decreases below 1V, so does the IC’s ability to sink current at RESET . Also, with any pull-up, RESET will be pulled high as VCC decays toward 0. The voltage where this occurs depends on the pull-up resistor value and the voltage to which it is connected. Figure 3. Interfacing to µPs with Bidirectional Reset I/O +5.0V +3.3V VCC VCC RPULL-UP G691 RESET GND G690/G691 5V SYSTEM RESET INPUT Benefits of Highly Accurate Reset Threshold Most µP supervisor ICs have reset threshold voltages between 5% and 10% below the value of nominal supply voltages. This ensures a reset will not occur within 5% of the nominal supply, but will occur when the supply is 10% below nominal. GND Figure 4. G691L Open-Drain RESET Output Allows Use with Multiple Supplies When using ICs rated at only the nominal supply ±5%, this leaves a zone of uncertainty where the supply is between 5% and 10% low, and where the reset may or may not be asserted. The G69_ _463/G69_ _308 use highly accurate circuitry to ensure that reset is asserted close to the 5% limit, and long before the supply has declined to 10% below nominal. TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 1.3 Oct 31, 2002 9 G690/G691 Global Mixed-mode Technology Inc. Package Information D D1 POLISH E HE A1 e C MATTE FINISH A b b1 b POLISH SOT- 89 (T2) Package SYMBOLS A A1 b b1 C D D1 HE E e DIMENSIONS IN MILLIMETERS MIN NOM MAX MIN 1.40 0.80 0.36 0.41 038 4.40 1.40 ----2.40 2.90 0.055 0.031 0.014 0.016 0.014 0.173 0.055 ----0.094 0.114 1.50 1.04 0.42 0.47 0.40 4.50 1.60 ----2.50 3.00 1.60 ----0.48 0.53 0.43 4.60 1.75 4.25 2.60 3.10 DIMENSIONS IN INCHES NOM MAX 0.059 0.041 0.016 0.018 0.015 0.177 0.062 ----0.098 0.118 0.063 ----0.048 0.020 0.017 0.181 0.069 0.167 0.102 0.122 TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 1.3 Oct 31, 2002 10 Global Mixed-mode Technology Inc. G690/G691 C D L E H e θ1 A A2 A1 b SOT 23 (T7) Package Note: 1.Package body sizes exclude mold flash protrusions or gate burrs 2.Tolerance ±0.1000 mm (4mil) unless otherwise specified 3.Coplanarity: 0.1000mm 4.Dimension L is measured in gage plane SYMBOLS A A1 A2 b C D E e H L θ1 MIN DIMENSIONS IN MILLIMETERS NOM MAX 1.00 0.00 0.70 0.35 0.10 2.70 1.40 ----2.60 0.37 1º 1.10 ----0.80 0.40 0.15 2.90 1.60 1.90(TYP) 2.80 -----5º 1.30 0.10 0.90 0.50 0.25 3.10 1.80 ----3.00 ----9º TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 1.3 Oct 31, 2002 11 G690/G691 Global Mixed-mode Technology Inc. D b L E1 E C e e1 A2 A A1 SC70 (T9) Package Note: 1. All dimensions are in millimeters 2. Dimensions are inclusive of plating of plating 3. Dimensions are exclusive of mold flash & metal burr 4. All specifications comply to EIAJ SC70 5. Coplanarity 4 Mils. Max. SYMBOL A A1 A2 b C D E E1 e DIMENSION IN MILIMETERS MIN. MAX. 0.90 0.05 0.85 0.20 0.10 1.90 1.15 2.00 e1 L MIN. 1.20 0.15 1.05 0.40 0.15 2.10 1.35 2.20 DIMENSION IN INCHS MAX. 0.035 0.002 0.033 0.008 0.004 0.075 0.045 0.0787 0.047 0.006 0.041 0.016 0.006 0.083 0.053 0.0866 0.65 BSC. 0.0256 BSC. 1.30 BSC. 0.425 REF. 0.0512 BSC. 0.0167 REF. Package Orientation Feed Direction SOT 89 Package Orientation Feed Direction SOT23, SC70 Package Orientation GMT Inc. does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and GMT Inc. reserves the right at any time without notice to change said circuitry and specifications. TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 1.3 Oct 31, 2002 12