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| MOTOROLA SEMICONDUCTOR TECHNICAL DATA Document order number: MC33290/D Rev 4, 11/2002 ISO K Line Serial Link Interface The 33290 is a serial link bus interface device designed to provide bidirectional half-duplex communication interfacing in automotive diagnostic applications. It is designed to interface between the vehicle's on-board microcontroller and systems off-board the vehicle via the special ISO K line. The 33290 is designed to meet the Diagnostic Systems ISO9141 specification. The device's K line bus driver's output is fully protected against bus shorts and overtemperature conditions. The 33290 derives its robustness to temperature and voltage extremes by being built on a SMARTMOS process, incorporating CMOS logic, bipolar/ MOS analog circuitry, and DMOS power FETs. Although the 33290 was principally designed for automotive applications, it is suited for other serial communication applications. It is parametrically specified over an ambient temperature range of -40C TA 125C and 8.0 V VBB 18 V supply. The economical SO-8 surface-mount plastic package makes the 33290 very cost effective. Features * Designed to Operate Over Wide Supply Voltage of 8.0 to 18 V * Ambient Operating Temperature of -40 to 125C * Interfaces Directly to Standard CMOS Microprocessors * ISO K Line Pin Protected Against Shorts to Ground * Thermal Shutdown with Hysteresis * Maximum Transmission Speeds in Excess of 50 k Baud * ISO K Line Pin Capable of High Currents * ISO K Line Can Be Driven with up to 10 nF of Parasitic Capacitance * 8.0 kV ESD Protection Attainable with Few Additional Components * Standby Mode: No VBat Current Drain with VDD at 5.0 V * Low Current Drain During Operation with VDD at 5.0 V 33290 ISO K LINE SERIAL LINK INTERFACE D SUFFIX PLASTIC PACKAGE CASE 751 (SO-8) ORDERING INFORMATION Device MC33290D Temperature Range (TA) -40 to 125C Package SO-8 33290 Simplified Application Diagram On-Board Diagnostic Link +VBat D(1) +VDD MCU VCC 5.0 V 7 1.0 nF Dx SCIRxD SCITxD 8 6 5 CEN ISO Rx Tx GND 33290 VBB VDD 1 500 (2) 10 nF(3) 5.0 nF(3) 4 27 V(3) 3 ISO K Line TxD RxD Service Scan Tool or End of Production Line Programming or System Checking 510 45 V(2) Components necessary for Reverse Battery (1), Overvoltage Transient (2), and 8.0 kV ESD Protection (3) in a metal module case. This device contains 85 active transistors. (c) Motorola, Inc. 2002 VBB 1 50 V 3.0 k 20 V 200 10 V 10 V Rx 6 ISO 4 Master Bias CEN 8 VDD 7 Tx 5 RHys Thermal Shutdown 125 k 10 V 125 k 40 V GND 2.0 k 10 V 3 Figure 1. 33290 Simplified Block Diagram 33290 2 MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA VBB NC GND ISO 1 1 2 2 3 3 4 4 88 77 66 55 CEN VDD RX TX PIN FUNCTION DESCRIPTION Pin Number 1 2 3 4 5 6 7 8 Pin Name VBB NC GND ISO TX RX VDD CEN Description Battery power through external resistor and diode. Not to be connected. (Note 1) Common signal and power return. Bus connection. Logic level input for data to be transmitted on the bus. Logic output of data received on the bus. Logic power source input. Chip enable. Logic "1" for active state. Logic "0" for sleep state. Notes 1. NC pins should not have any connections made to them. NC pins are not guaranteed to be open circuits. MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA 33290 3 MAXIMUM RATINGS All voltages are with respect to ground unless otherwise noted. Rating VDD DC Supply Voltage VBB Load Dump Peak Voltage ISO Pin Load Dump Peak Voltage (Note 2) ISO Short Circuit Current Limit ESD Voltage (Note 3) Human Body Model (Note 4) Machine Model (Note 5) ISO Clamp Energy (Note 6) Storage Temperature Operating Case Temperature Operating Junction Temperature Power Dissipation TA = 25C Lead Soldering Temperature (Note 7) Thermal Resistance Junction-to-Ambient Tsolder RJA 150 VESD1 VESD2 Eclamp Tstg TC TJ PD 0.8 260 C C/W 2000 200 10 -55 to +150 -40 to +125 -40 to +150 mJ C C C W Symbol VDD VBB(LD) VISO IISO(LIM) Value -0.3 to 7.0 45 40 1.0 Unit V V V A V Notes 2. Device will survive double battery jump start conditions in typical applications for 10 minutes duration, but is not guaranteed to remain within specified parametric limits during this duration. 3. ESD data available upon request. 4. ESD1 testing is performed in accordance with the Human Body Model (CZAP = 100 pF, RZAP = 1500 ). 5. 6. 7. ESD2 testing is performed in accordance with the Machine Model (CZAP = 200 pF, RZAP = 0 ). Nonrepetitive clamping capability at 25C. Lead soldering temperature limit is for 10 seconds maximum duration. Contact Motorola Sales Office for device immersion soldering time/ temperature limits. 33290 4 MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA STATIC ELECTRICAL CHARACTERISTICS Characteristics noted under conditions of 4.75 V VDD 5.25 V, 8.0 V VBB 18 V, -40C TC 125C, unless otherwise noted. Characteristic Symbol Min Typ Max Unit POWER AND CONTROL VDD Sleep State Current Tx = 0.8 VDD, CEN = 0.3 VDD VDD Quiescent Operating Current Tx = 0.2 VDD, CEN = 0.7 VDD VBB Sleep State Current VBB = 16 V, Tx = 0.8 VDD, CEN = 0.3 VDD VBB Quiescent Operating Current TX = 0.2 VDD, CEN = 0.7 VDD Chip Enable Input High-Voltage Threshold (Note 8) Input Low-Voltage Threshold (Note 9) Chip Enable Pull-Down Current (Note 10) TX Input Low-Voltage Threshold RISO = 510 (Note 11) TX Input High-Voltage Threshold RISO = 510 (Note 12) TX Pull-Up Current (Note 13) RX Output Low-Voltage Threshold RISO = 510 , TX = 0.2 VDD, Rx Sinking 1.0 mA RX Output High-Voltage Threshold RISO = 510 , TX = 0.8 VDD, RX Sourcing 250 A Thermal Shutdown (Note 14) Notes 8. 9. 10. 11. 12. 13. 14. TLIM VOH(Rx) 0.8 VDD 150 IPU(Tx) VOL(Rx) VIH(Tx) 0.7 x VDD -40 VIH(CEN) VIL(CEN) IPD(CEN) VIL(Tx) 0.7 VDD IBB(Q) IBB(SS) IDD(Q) IDD(SS) mA - - 0.1 mA - - 1.0 A - - 50 mA - - 1.0 V - - - - - 0.3 VDD 40 A V - 2.0 - 0.3 x VDD V - - - - -2.0 A V - 0.2 VDD V - 170 - - C When IBB transitions to >100 A. When IBB transitions to <100 A. Enable pin has an internal current pull-down equivalent to greater than 50 k. Measured by ramping TX down from 0.7 VDD and noting TX value at which ISO falls below 0.2 VBB. Measured by ramping TX up from 0.3 VDD and noting the value at which ISO rises above 0.9 VBB. Tx pin has internal current pull-up equivalent to greater than 50 k. Pull-Up current measured with TX pin at 0.7 VDD. Thermal Shutdown performance (TLIM) is guaranteed by design but not production tested. MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA 33290 5 STATIC ELECTRICAL CHARACTERISTICS (continued) Characteristics noted under conditions of 4.75 V VDD 5.25 V, 8.0 V VBB 18 V, -40C TC 125C, unless otherwise noted. Characteristic Symbol Min Typ Max Unit ISO I/O Input Low Voltage Threshold RISO = 0 , TX = 0.8 VDD (Note 15) Input High Voltage Threshold RISO = 0 , TX = 0.8 VDD (Note 16) Input Hysteresis (Note 17) Internal Pull-Up Current RISO = , TX = 0.8 VDD, VISO = 9.0 V, VBB = 18 V Short Circuit Current Limit (Note 18) RISO = 0 , TX = 0.4 VDD, VISO = VBB Output Low Voltage RISO = 510 , TX = 0.2 VDD Output High Voltage RISO = , TX = 0.8 VDD VOH(ISO) 0.95 x VBB - - VOL(ISO) - - 0.1 x VBB V ISC(ISO) 50 - 1000 V VHys(ISO) IPU(ISO) -5.0 - -120 mA VIH(ISO) 0.7 x VBB 0.05 x VBB - - - 0.1 x VBB V A VIL(ISO) - - 0.4 x VBB V V Notes 15. ISO ramped from 0.8 VBB to 0.4 VBB, Monitor RX, Value of ISO voltage at which RX transitions to 0.3 VDD. 16. 17. 18. ISO ramped from 0.4 VBB to 0.8 VBB, Monitor RX, Value of ISO voltage at which RX transitions to 0.7 VDD. Input Hysteresis, VHys(ISO) = VIH(ISO) - VIL(ISO). ISO has internal current limiting. 33290 6 MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA DYNAMIC ELECTRICAL CHARACTERISTICS Characteristics noted under conditions of 4.75 V VDD 5.25 V, 8.0 V VBB 18 V, -40C TC 125C, unless otherwise noted. Characteristic Fall Time (Note 19) RISO = 510 to VBB, CISO = 10 nF to Ground ISO Propagation Delay (Note 20) High to Low: RISO = 510 , CISO = 500 pF (Note 21) Low to High: RISO = 510 , CISO = 500 pF (Note 22) Notes 19. Time required ISO voltage to transition from 0.8 VBB to 0.2 VBB. 20. 21. 22. Changes in the value of CISO affect the rise and fall time but have minimal effect on Propagation Delay. Step TX voltage from 0.2 VDD to 0.8 VDD. Time measured from VIH(ISO) until VISO reaches 0.3 VBB. Step TX voltage from 0.8 VDD to 0.2 VDD. Time measured from VIL(ISO) until VISO reaches 0.7 VBB. tPD(ISO) - - - - 2.0 2.0 Symbol tfall(ISO) - - 2.0 s Min Typ Max Unit s MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA 33290 7 Electrical Performance Curves VIL and VIH, INPUT THRESHOLD (RATIO) 0.6 VIH; VDD = 5.25 V, VBB = 18 V 0.575 VIH; VDD = 4.75 V, VBB = 8.0 V 0.55 0.525 0.5 0.475 -50 VIL; VDD = 5.25 V, VBB = 18 V VIL; VDD = 4.75 V, VBB = 8.0 V 0 50 100 150 VOL and VOH, ISO OUTPUT (RATIO) 1.2 1.0 0.8 0.6 0.4 0.2 VOL 0 -50 0 50 100 150 VDD = 4.75 V, VBB = 8.0 V and VDD = 5.25 V, VBB = 18 V VOH TA, AMBIENT TEMPERATURE (C) TA, AMBIENT TEMPERATURE (C) Figure 2. ISO Input Threshold/VBB vs. Temperature Figure 4. ISO Fall Time vs. Temperature tPD(ISO), PROPAGATION DELAY ( s) 0.95 tfall(ISO), ISO FALL TIME ( s) 0.9 0.85 0.8 0.75 VDD = 4.75 V, VBB = 8.0 V 0.7 0.65 -50 0 50 100 150 0.7 VDD = 5.25 V, VBB = 18 V 0.6 VDD = 4.75 V, VBB = 8.0 V 0.5 0.4 0.3 0.2 -50 PdH-L VDD = 5.25 V, VBB = 18 V VDD = 5.25 V, VBB = 18 V 0 50 100 PdL-H VDD = 4.75 V, VBB = 8.0 V 150 TA, AMBIENT TEMPERATURE (C) TA, AMBIENT TEMPERATURE (C) Figure 3. ISO Output/VBB vs. Temperature Figure 5. ISO Propagation Delay vs. Temperature 33290 8 MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA APPLICATIONS INFORMATION INTRODUCTION The 33290 is a serial link bus interface device conforming to the ISO 9141 physical bus specification. The device was designed for automotive environment usage compliant with OnBoard Diagnostic (OBD) requirements set forth by the California Air Resources Board (CARB) using the ISO K line. The device does not incorporate an ISO L line. It provides bi-directional half-duplex communications interfacing from a microcontroller to the communication bus. The 33290 incorporates circuitry to interface the digital translations from 5.0 V microcontroller logic levels to battery level logic and from battery level logic to 5.0 V logic levels. The 33290 is built using Motorola's SMARTMOSTM process and is packaged in an 8-pin plastic SOIC. FUNCTIONAL DESCRIPTION The 33290 transforms 5.0 V microcontroller logic signals to battery level logic signals and visa versa. This serial link interface device, operating in a typical automotive diagnostic application, operates at bit rates up to 10.4 kbps with less than 2.0 s propagation delay and less than 2.0 s fall time. Rise time is a function of the resistor used in the application to pull up the bus to battery voltage, working in conjunction with the total capacitance present on the bus. The serial link interface will remain fully functional over a battery voltage range of 6.0 to 18 V. The device is parametrically specified over a dynamic VBB voltage range of 8.0 to 18 V. Required input levels from the microcontroller are ratiometric with the VDD voltage normally used to power the microcontroller. This enhances the 33290's ability to remain in harmony with the RX and TX control input signals of the microcontroller. The RX and TX control inputs are compatible with standard 5.0 V CMOS circuitry. For fault-tolerant purposes the TX input from the microcontroller has an internal passive pull-up to VDD of approximately 125 k, while the CEN input has an internal passive pull-down to ground of approximately 125 k. In the receive mode, all ISO K Line bus input signals greater than the 0.7 x VBB thresholds are valid for a high-level signal and less than the 0.4 x VBB thresholds for a low-level signal. In the transmit mode, valid ISO K line bus output signal levels are greater than 0.95 x VBB and less than 0.1 x VBB. A pull-up resistor of 100 k to battery is internally provided as well as an active data pull-down. The internal active pull-down is current-limit-protected against shorts to battery and further protected by thermal shutdown. Typical applications have reverse battery protection by the incorporation of an external 510 pull-up resistor and diode to battery. Reverse battery protection of the device is provided by using a reverse battery blocking diode [(D) in the Simplified Application Diagram on page 1]. Battery line transient protection of the device is provided for by using a 45 V zener and a 500 resistor connected to the VBB source as shown in the same diagram. Device ESD protection from the communication lines exiting the module is through the use of the 10 nF connected to the VBB device pin and the 5.0 nF used in conjunction with the 27 V zener connected to the ISO pin. MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA 33290 9 PACKAGE DIMENSIONS D SUFFIX (8-LEAD SOIC) PLASTIC PACKAGE CASE 751-06 ISSUE T NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 2. DIMENSIONS ARE IN MILLIMETER. 3. DIMENSION D AND E DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE. 5. DIMENSION B DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 TOTAL IN EXCESS OF THE B DIMENSION AT MAXIMUM MATERIAL CONDITION. MILLIMETERS MIN MAX 1.35 1.75 0.10 0.25 0.35 0.49 0.19 0.25 4.80 5.00 3.80 4.00 1.27 BSC 5.80 6.20 0.25 0.50 0.40 1.25 0 7 A 8 D 5 C E 1 4 H 0.25 M B M h B C e A SEATING PLANE X 45 0.10 A1 B 0.25 M L CB S A S DIM A A1 B C D E e H h L 33290 10 MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA NOTES MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA 33290 11 Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. "Typical" parameters can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals", must be validated for each customer application by customer's technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other appl ication in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer. MOTOROLA and the Stylized M Logo are registered in the US Patent and Trademark Office. All other product or service names are the property of their respective owners. (c) Motorola, Inc. 2002 HOW TO REACH US: USA/EUROPE/LOCATIONS NOT LISTED: Motorola Literature Distribution: P.O. Box 5405, Denver, Colorado 80217. 1-303-675-2140 or 1-800-441-2447 JAPAN: Motorola Japan Ltd.; SPS, Technical Information Center, 3-20-1 Minami-Azabu. Minato-ku, Tokyo 106-8573 Japan. 81-3-3440-3569 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; Silicon Harbour Centre, 2 Dai King Street, Tai Po Industrial Estate, Tao Po, N.T., Hong Kong. 852-26668334 TECHNICAL INFORMATION CENTER: 1-800-521-6274 MC33290/D |
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