AME, Inc. µProcessor Supervisory AME8500 / 8501 n General Description n Typical Operating Circuit The AME8500 family allows the user to customize the CPU reset function without any external components. The user has a large choice of reset voltage thresholds, reset time intervals, and output driver configurations, all of which are preset at the factory. Each wafer is trimmed to the customer's specifications. These circuits monitor the power supply voltage of µP based systems. When the power supply voltage drops below the voltage threshold a reset is asserted immediately (within an interval TD1). The reset remains asserted after the supply voltage rises above the voltage threshold for a time interval, TD2 . The reset output may be either active high (RESET) or active low (RESETB). The reset output may be configured as either push/pull or open drain. The state of the reset output is guaranteed to be correct for supply voltages greater than 1V. The AME8501 includes all the above functionality plus an overtemperature shutdown function. When the ambient temperature exceeds 80oC a reset is asserted and remains asserted until the temperature falls below 60oC. Space saving SOT23 packages and micropower quiescent current (<3.0µA) make this family a natural for portable battery powered equipment. 2 VCC AME8500 Processor RESET Input RESET / RESET GND GND 3 Note: * External pull-up resistor is required if opendrain output is used. 10 kΩ is recommended. n Block Diagram AME8500 with Push-Pull RESET VDD n Features R1 I1 l Small packages: SOT-23, SOT-89 P1 Delay l 11 voltage threshold options R2 l Tight voltage threshold tolerance ---±1.50% l 5 reset interval options * VCC VREF RESET N1 GND l 4 output configuration options l Wide temperature range -------- -40oC to 85oC l Low temperature coefficient --- 100ppm/oC(max) AME8500 with Push-Pull RESET l Low quiescent current < 3.0µA l Thermal shutdown option (AME8501) VDD n Applications l l l l l l Portable electronics Power supplies Computer peripherals Data acquisition systems Applications using CPUs Consumer electronics R1 I1 P1 RESET Delay R2 VREF N1 GND 1 AME, Inc. µProcessor Supervisory AME8500 / 8501 n Block Diagram (contd.) AME8500 with Open-Drain RESET AME8500 with Open-Drain RESET VDD VDD R1 I1 RESET Delay R2 I1 R1 VREF R2 N1 GND RESET Delay VREF N1 GND n Pin Configuration SOT-23 Top View SOT-23 Top View 3 AME8500 1 AME8500AEET AME8501AEET 1. GND 2. Reset/ResetB 3. V DD 2 AME8500 1 2 2 AME8500 1 SOT-23 Top View 3 3 AME8500BEET AME8501BEET 1. Reset/ResetB 2. GND 3. V DD 2 SOT-23-L Top View AME8500CEET AME8501CEET 1. Reset/ResetB 2. V DD 3. GND 3 AME8500 1 2 AME8500AEET AME8501AEET 1. GND 2. Reset/ResetB 3. V DD AME, Inc. µProcessor Supervisory AME8500 / 8501 n Pin Configuration (contd.) SOT-23-L Top View SOT-23-L Top View 3 AME8500 1 AME8500BEET AME8501BEET 1. Reset/ResetB 2. GND 3. V DD 3 AME8500 1 2 SOT-89 Top View 2 3 AME8500AEFT AME8501AEFT 1. GND 2. V DD 3. Reset/ResetB AME8500 1 AME8500 2 2 3 AME8500BEFT AME8501BEFT 1. Reset/ResetB 2. V DD 3. GND SOT-25 Top View SOT-89 Top View 1 2 SOT-89 Top View AME8500 1 AME8500CEET AME8501CEET 1. Reset/ResetB 2. V DD 3. GND AME8500CEFT AME8501CEFT 1. V DD 2. GND 3. Reset/ResetB 3 5 4 AME8500 1 2 3 AME8500BEEV AME8501BEEV 1. Reset/ResetB 2. VDD 3. GND 4. N/C 5. N/C n Pin Description Pin Name GND Pin Description Ground RESETB/RESET This pin can be ordered as RESET or RESETB. RESET is active high. RESETB is active low. It is also available with an open drain or pushpull output. VDD Positive power supply. A reset is asserted after this voltage drops below a predetermined level. After V DD rises above that level the reset output remains asserted until the end of the reset timeout period. 3 AME, Inc. µProcessor Supervisory AME8500 / 8501 n Ordering Information AME8500 x x x x x x x x AME8501 x x x x x x x x Special Feature VDD Threshold Voltage (VTH) Reset Time (TD2NOM) Output Driver Option Number of Pins Package Type Operating Temperature Range Pin Configuration Pin Configuration A (SOT-23) B (SOT-23) C (SOT-23) A (SOT-89) B (SOT-89) C (SOT-89) 4 Operating Temperature Range Output Driver Number Option Package of Characteristic Type Pins of RESET or RESETB pin 1. GND E: -40OC to 85OC E: SOT-2X 2. Reset/ F: SOT-89 ResetB 3. VDD 1. Reset/ ResetB 2. GND 3. VDD 1. Reset/ ResetB 2. VDD 3. GND 1. GND 2. VDD 3. Reset/ ResetB 1. Reset/ ResetB 2. VDD 3. GND 1. VDD 2. GND 3. Reset/ ResetB T: 3 V: 5 Reset Time (TD2NOM) A: RESETB /PP A: 1.5 ms B: RESETB /OD D: 30 ms C: RESET/ PP E: 150 ms D: RESET/ OD F: 210 ms (RESET = Active High) (RESETB = Active Low) (PP = Push pull out) (OD = Open drain output polarity) VDD Threshold Voltage (V TH ) 15: VTH= 16: VTH= 18: VTH= 19: VTH= 20: VTH= 21: VTH= 22: VTH= 23: VTH= 24: VTH= 26: VTH= 27: VTH= 28: VTH= 29: VTH= 31: VTH= 40: VTH= 42: VTH= 44: VTH= 46: VTH= Special Feature 1.5V L: Low profile 1.6V Y: Lead free & 1.8V Low profile 1.9V Z: Lead free 2.0V 2.1V 2.2V 2.32V 2.4V 2.63V 2.7V 2.8V 2.93V 3.08V 4.0V 4.2V 4.38V 4.63V AME, Inc. µProcessor Supervisory AME8500 / 8501 n Ordering Information Part Number Marking VTH Voltage Package Operating Temp. Range AME8500AEETAA21 ASVww 2.10V SOT-23 - 40oC to + 85oC AME8500AEETAD20 ALXww 2.00V SOT-23 - 40oC to + 85oC AME8500AEETAE20 AUAww 2.00V SOT-23 - 40oC to + 85oC AME8500AEETAE21 AVGww 2.10V SOT-23 - 40oC to + 85oC AME8500AEETAE26 ASJww 2.63V SOT-23 - 40oC to + 85oC AME8500AEETAE26L ASJww 2.63V SOT-23 - 40oC to + 85oC AME8500AEETAE29 ALYww 2.93V SOT-23 - 40oC to + 85oC AME8500AEETAE31 AUBww 3.08V SOT-23 - 40oC to + 85oC AME8500AEETAE46 ATSww 4.63V SOT-23 - 40oC to + 85oC AME8500AEETAF15 ATDww 1.50V SOT-23 - 40oC to + 85oC AME8500AEETAF16 ATEww 1.60V SOT-23 - 40oC to + 85oC AME8500AEETAF21 ASKww 2.10V SOT-23 - 40oC to + 85oC AME8500AEETAF23 ATTww 2.32V SOT-23 - 40oC to + 85oC AME8500AEETAF26 AMPww 2.63V SOT-23 - 40oC to + 85oC AME8500AEETAF27 ATRww 2.70V SOT-23 - 40oC to + 85oC AME8500AEETAF29 AMOww 2.93V SOT-23 - 40oC to + 85oC AME8500AEETAF31 ASAww 3.08V SOT-23 - 40oC to + 85oC AME8500AEETAF40 ASBww 4.00V SOT-23 - 40oC to + 85oC AME8500AEETAF44 ARNww 4.38V SOT-23 - 40oC to + 85oC AME8500AEETAF46 ARKww 4.63V SOT-23 - 40oC to + 85oC AME8500AEETBF31 AUTww 3.08V SOT-23 - 40oC to + 85oC AME8500AEETBF46 AUUww 4.63V SOT-23 - 40oC to + 85oC AME8500AEETCA21 ASWww 2.10V SOT-23 - 40oC to + 85oC AME8500AEETCA27 AVBww 2.70V SOT-23 - 40oC to + 85oC AME8500AEETCA46 AVCww 4.63V SOT-23 - 40oC to + 85oC AME8500AEETCD20 ALZww 2.00V SOT-23 - 40oC to + 85oC AME8500AEETCF21 ATYww 2.10V SOT-23 - 40oC to + 85oC AME8500AEETCF29 ALVww 2.93V SOT-23 - 40oC to + 85oC AME8500AEETCF31 ASUww 3.08V SOT-23 - 40oC to + 85oC 5 AME, Inc. µProcessor Supervisory AME8500 / 8501 n Ordering Information (contd.) Part Number Marking VTH Voltage Package Operating Temp. Range AME8500AEETCF46 ARJww 4.63V SOT-23 - 40oC to + 85oC AME8500AEETDF46 ARIww 4.63V SOT-23 - 40oC to + 85oC 2.10V SOT-89 - 40oC to + 85oC 2.70V SOT-89 - 40oC to + 85oC 2.10V SOT-89 - 40oC to + 85oC 2.10V SOT-89 - 40oC to + 85oC AME8500AEFTAA21 AME8500AEFTAF27 AME8500AEFTCA21 AME8500AEFTDA21 6 A8500A AA21ww A8500A AF27ww A8500A CA21ww A8500A DA21ww AME8500BEETAA21 ARTww 2.10V SOT-23 - 40oC to + 85oC AME8500BEETAA27 ARMww 2.70V SOT-23 - 40oC to + 85oC AME8500BEETAA28 ASRww 2.80V SOT-23 - 40oC to + 85oC AME8500BEETAA29 ARZww 2.93V SOT-23 - 40oC to + 85oC AME8500BEETAF27 AUCww 2.70V SOT-23 - 40oC to + 85oC AME8500BEETAF29 AUVww 2.93V SOT-23 - 40oC to + 85oC AME8500BEETAF31 ATOww 3.08V SOT-23 - 40oC to + 85oC AME8500BEETAF40 ATQww 4.00V SOT-23 - 40oC to + 85oC AME8500BEETBA21 AUWww 2.10V SOT-23 - 40oC to + 85oC AME8500BEETBA22 AVDww 2.20V SOT-23 - 40oC to + 85oC AME8500BEETBA24 AUXww 2.40V SOT-23 - 40oC to + 85oC AME8500BEETBA27 ASQww 2.70V SOT-23 - 40oC to + 85oC AME8500BEETBA28 ASSww 2.80V SOT-23 - 40oC to + 85oC AME8500BEETBA28L ASSww 2.80V SOT-23 - 40oC to + 85oC AME8500BEETBA28Y ASSww 2.80V SOT-23 - 40oC to + 85oC AME8500BEETBA29 ARLww 2.93V SOT-23 - 40oC to + 85oC AME, Inc. µProcessor Supervisory AME8500 / 8501 n Ordering Information (contd.) Part Number Marking VTH Voltage Package Operating Temp. Range AME8500BEETBA42 ASIww 4.20V SOT-23 - 40oC to + 85oC AME8500BEETCA21 ASXww 2.10V SOT-23 - 40oC to + 85oC AME8500BEEVAK27 AUFww 2.70V SOT-25 - 40oC to + 85oC 2.10V SOT-89 - 40oC to + 85oC 2.70V SOT-89 - 40oC to + 85oC 2.70V SOT-89 - 40oC to + 85oC 4.00V SOT-89 - 40oC to + 85oC 2.32V SOT-89 - 40oC to + 85oC AME8500BEFTAA21 AME8500BEFTAA27 AME8500BEFTAF27 AME8500BEFTAF40 AME8500BEFTBA23 A8500B AA21ww A8500B AA27ww A8500B AF27ww A8500B AF40ww A8500B BA23ww AME8500CEETAA21 ASYww 2.10V SOT-23 - 40oC to + 85oC AME8500CEETAE26 ASHww 2.63V SOT-23 - 40oC to + 85oC AME8500CEETAE42 AUZww 4.20V SOT-23 - 40oC to + 85oC AME8500CEETAF29 ASLww 2.93V SOT-23 - 40oC to + 85oC AME8500CEETBE42 AVAww 4.20V SOT-23 - 40oC to + 85oC AME8500CEETBF31 AVYww 3.08V SOT-23 - 40oC to + 85oC AME8500CEETBF46 ARWww 4.63V SOT-23 - 40oC to + 85oC AME8500CEETCA21 ASZww 2.10V SOT-23 - 40oC to + 85oC 2.70V SOT-89 - 40oC to + 85oC 2.93V SOT-89 - 40oC to + 85oC 4.20V SOT-89 - 40oC to + 85oC 2.80V SOT-89 - 40oC to + 85oC 4.63V SOT-89 - 40oC to + 85oC AME8500CEFTBA27 AME8500CEFTBA29 AME8500CEFTBA42 AME8500CEFTCD28 AME8500CEFTCD46 A8500C BA27ww A8500C BA29ww A8500C BA42ww A8500C CD28ww A8500C CD46ww Please consult AME sales office or authorized Rep./Distributor for other voltage options. 7 AME, Inc. µProcessor Supervisory AME8500 / 8501 n Absolute Maximum Ratings Parameter Maximum Unit Supply Voltage 7 V ESD Classification B Input Current, VDD 20 mA Output Current, RESET, ResetB 20 mA Rate of Rise, VDD 100 V/ µs Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device n Recommended Operating Conditions Parameter Supply Voltage Rating Unit 1.6 - 5 V Ambient Temperature Range - 40 to + 85 o C Junction Temperature - 40 to + 125 o C - 65 to 150 o C Storage Temperature n Thermal Information Parameter Maximum SOT-23 325 o Thermal Resistance C/W SOT-89 180 SOT-23 350 SOT-89 650 Power Dissipation 8 Unit mW Maximum Junction Temperature 150 o C Maximum Lead Temperature (10 Sec) 300 o C AME, Inc. µProcessor Supervisory AME8500 / 8501 n Electrical Specifications TA = 25OC unless otherwise noted Parameter VDD Range* Supply Current Reset Threshold Test Condition Symbol VRANGE IDD Min 1 5.5 TA=-40~85 C 1 5.5 V DD = VTH *1.10 3.0 o VDD = VTH *1.10, TA=-40~85 C 5.0 VTHNOM - 1.5% V THNOM + 1.5% VTHNOM - 2.0% V THNOM + 2.0% V TH TA=-40~85 C VHY ST VRELEASE - VTH , note1 RESET Threshold Tempco RESETB Output Voltage Low RESET Output Voltage Low VDD <VTH (MIN) V OL VDD >VTH (MAX) Max Units V o o Hysteresis Range Typ µA mV 20 mV 30 ppm ISINK=1.2mA, 0.5 TA= -40~85oC V ISOURCE=0.5mA, VDD >1.8V RESETB Output Voltage High VDD >VTH (MAX) ISOURCE=0.15mA, 1.8V>=VDD >1.0V VOH V 0.8VDD ISOURCE=0.5mA, RESET Output Voltage High VDD <VTH (MIN) VDD >1.8V ISOURCE=0.15mA, 1.8V>=VDD >1.0V VDD to Reset Delay Reset Timeout Period* TD1 TD2 VDD = V TH - 100mV, TA= -40 ~ 85oC o TA= -40 ~ 85 C 40 200 µS Version A 0.5 1.5 5 mS Version D 15 30 50 mS Version E 80 150 230 mS Version F 140 210 500 mS Version K 300 440 600 mS Temperature Shutdown TOFF AME8501 only 80 o Temperature Shutdown Hysteresis THY S AME8501 only 20 o C C Note1:The data based on VTH=2.7V part type. 9 AME, Inc. µProcessor Supervisory AME8500 / 8501 n Timing Diagram VRelease VTH VDD TD2 50% TD1 50% TD1 50% RESET TD2 50% RESETB n Applications Information Supply Transients These devices have a certain immunity to fast negative going transients. In the following pages the graph titled “Glitch Rejection” indicates the maximum allowable glitch amplitude and duration to avoid triggering an unintended reset. As shown in the graph shorter transients can have larger amplitudes without triggering resets. Reset Time vs. Temperature 220 120 215 100 Reset Time (mS) Glitch Duration (µ µ S) Glitch Rejection 140 80 60 40 AME8500AEETAF26 205 200 195 20 0 0.01 0.1 Glitch Amplitude (V) 10 210 1 190 -45 -5 25 55 Temperature ( oC) 85 115 AME, Inc. µProcessor Supervisory AME8500 / 8501 IDD vs. Temperature Reset VTH vs. Temperature 2.650 2.35 2.646 2.644 Reset Vth (V) Supply Current @ 5V (uA) 2.648 2.30 2.25 AME8500AEETAF26 2.20 2.642 2.640 AME8500AEETAF26 2.638 2.636 2.15 2.634 2.632 2.10 -45 -5 25 55 85 2.630 115 -45 -5 25 Temperature (oC) 55 85 115 Temperature (oC) IDD vs. VDD TD1 Delay vs. Temperature 2 43 42 1.6 TD2 Delay (uS) 85OC IDD (uA) -40OC 1.2 0O C 0.8 0.4 41 40 39 38 0 0 1 2 3 4 37 -40 5 -20 0 20 40 60 80 100 Temperature (oC) VDD (V) Threshold Hysteresis vs. Temperature Reset VOL vs. Temperature 0.5 0.265 Reset VOL @ 0.8mA (V) 0.260 Hysteresis (% of VTH) 0.4 0.3 0.2 0.1 0.255 0.250 0.245 0.240 0.235 AME8500AEETAF26 0.230 0.225 0 -40 -20 0 20 40 60 Temperature (oC) 80 100 0.220 -45 -5 25 55 85 115 Temperature ( oC) 11 AME, Inc. µProcessor Supervisory AME8500 / 8501 n Package Dimension SOT-23 Top View Side View SYMBOLS D L H E £ c 1 MAX MIN MAX A 1.00 1.40 0.0394 0.0551 A1 0.00 0.15 0.0000 0.0059 b 0.35 0.50 0.0138 0.0197 C 0.09 0.25 0.0035 0.0098 D 2.70 3.10 0.1063 0.1220 E 1.40 1.80 0.0551 0.0709 1.90 BSC e H 2.40 3.00 0o 0.09449 0.11811 0.0138BSC 10o 0o 10 o A è1 0.0748 BSC 0.35BSC L Front View INCHES MIN C e MILLIMETERS A1 b SOT-23-L SYMBOLS Top View Side View D MIN MAX MIN MAX A+A1 1.00 1.30 0.0394 0.0512 b 0.35 0.50 0.0138 0.0197 C 0.09 0.25 0.0035 0.0098 D 2.70 3.10 0.1063 0.1220 E 1.40 1.80 0.0551 0.0709 E 1.90 BSC e H 2.40 £ c 1 b A1 A Front View è1 0.0748 BSC 3.00 0.35BSC L e 12 INCHES H L C MILLIMETERS 0 o 10 0.09449 0.11811 0.0138BSC o 0o 10o AME, Inc. µProcessor Supervisory AME8500 / 8501 n Package Dimension SOT-89 Side View Top View SYMBOLS D D1 H POLISH A MILLIMETERS MIN MAX 1.39 1.60 0.8REF A1 E A1 e Front View MIN MAX 0.05472 0.06299 0.0315REF C 0.35 0.44 0.01378 0.01732 D 4.39 4.60 0.17283 D1 1.35 1.83 0.05315 0.07205 E 2.28 3.60 0.08976 0.14173 C S1 INCHES 0.1811 e 3.00REF 0.1181REF H 0.70REF 0.0276REF S1 1.50REF 0.0590REF MILLIMETERS INCHES MATTE FINISH A POLISH SOT-25 Top View Side View SYMBOLS D E £ c 1 S1 1.20REF A 0.0472REF 0.15 0.0000 0.0059 b 0.30 0.55 0.0118 0.0217 D 2.70 3.10 0.1063 0.1220 E 1.40 1.80 0.0551 0.0709 1.90 BSC e è1 A b MAX 0.00 2.60 S1 0.07480 BSC 3.00 0.37BSC L Front View MIN A1 H e MAX 0 o 10 0.95BSC 0.10236 0.11811 0.0146BSC o 0o 10o 0.0374BSC A1 H L MIN 13 www.ame.com.tw E-Mail: [email protected] Life Support Policy: These products of AME, Inc. are not authorized for use as critical components in life-support devices or systems, without the express written approval of the president of AME, Inc. AME, Inc. reserves the right to make changes in the circuitry and specifications of its devices and advises its customers to obtain the latest version of relevant information. AME, Inc. , June 2003 Document: 2007-DS8500/8501-L Corporate Headquarter U.S.A. Subsidiary AME, Inc. Analog Microelectronics, Inc. 2F, 189 Kang-Chien Road, Nei-Hu Dist. Taipei 114 Taiwan, R.O.C. 3100 De La Cruz Blvd., Suite 201 Santa Clara, CA. 95054-2046 Tel: 886 2 2627-8687 Fax: 886 2 2659-2989 Tel : (408) 988-2388 Fax: (408) 988-2489