DS3662 NSC | Alldatasheet
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Features
n Pin to pin functional replacement for DS8641 n Guaranteed AC specifications on noise immunity and propagation delay over the specified temperature and supply voltage range n Temperature insensitive receiver thresholds track bus logic level n Trapezoidal bus waveforms reduce noise coupling to adjacent lines n Precision receiver thresholds provide maximum noise immunity and symmetrical response to positive and negative going pulses n Open collector driver output allows wire-OR connection n High speed Schottky technology n 15 µA typical bus termination current with normal V CC or with VCC = 0V n Glitch free power up/down protection on the driver output n TTL compatible driver and disable inputs, and receiver outputs Block and Connection Diagram Trapezoidal™ is a trademark of National Semiconductor Corp. Dual-In-Line Package DS005803-1 Top View Order Number DS3662J, DS3662N or DS3662WM See NS Package Number J16A, N16A or M16B July 1992 DS3662 Quad High Speed Trapezoidal Bus Transceiver © 1999 National Semiconductor Corporation DS005803 www.national.com
Absolute Maximum Ratings(Note 2) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage 7V Input and Output Voltage 5.5V Storage Temperature Range −65˚C to +150˚C Maximum Power Dissipation (Note 1) at 25˚C Cavity Package 1509 mW Molded Package 1476 mW Lead Temperature (Soldering, 4 sec.) 260˚C Recommended Operating Conditions Min Max Units Supply Voltage (VCC ) 4.75 5.25 V Temperature Range (TA) 0 70 ˚C Note 1: Derate cavity package 10.1 mW/˚C above 25˚C; derate molded package 11.8 mW/˚C above 25˚C. Electrical Characteristics(Notes 3, 4) Symbol Parameter Conditions Min Typ Max Units DRIVER AND DISABLE INPUTS V IH Logical “1” Input Voltage 2.0 V VIL Logical “0” Input Voltage 0.8 V II Logical “1” Input Current V IN = 5.5V 1 mA IIH Logical “1” Input Current V IN = 2.4V 40 µA IIL Logical “0” Input Current V IN = 0.4V −1 −1.6 mA VCL Input Diode Clamp Voltage I CLAMP = −12 mA −0.8 −1.5 V DRIVER OUTPUT/RECEIVER INPUT V OLB Low Level Bus Voltage V DIS = 0.8V, VIN = 2V, IBUS = 100 mA 0.6 0.9 V IIHB Maximum Bus Current V IN = 0.8V, VBUS = 4V, VCC = 5.25V 10 100 µA IILB Maximum Bus Current V IN = 0.8V, VBUS = 4V, VCC = 0V 100 µA VIH High Level Receiver Threshold VIN = 0.8V, VOL = 16 mA 1.90 1.70 V VIL Low Level Receiver Threshold V IN = 0.8V, IOH = −400 µA 1.70 1.50 V RECEIVER OUTPUT V OH Logical “1” Output Voltage V IN = 0.8V, VBUS = 0.5V, IOH = −400 µA 2.4 3.2 V VOL Logical “0” Output Voltage V IN = 0.8V, VBUS = 4V, IOL = 16 mA 0.35 0.5 V IOS Output Short Circuit Current V DIS = 0.8V, VIN = 0.8V, VBUS = 0.5V, −40 −70 −100 mA VOS = 0V, VCC = 5.25V, (Note 5) ICC Supply Current V DIS = 0V, VIN = 2V 50 90 mA Switching Characteristics(Notes 3, 4) Symbol Parameter Conditions Min Typ Max Units PROPAGATION DELAYS t PLHD Disable to Bus “1” Figure 1 25 35 ns tPHLD Disable to Bus “0” 25 35 ns tPLHB Driver Input to Bus “1” Figure 2 20 30 ns tPHLB Driver Input to Bus “0” 20 30 ns tPLHR Bus to Logical “1” Receiver Output Figure 3 25 40 ns tPHLR Bus to Logical “0” Receiver Output 25 40 ns NOISE IMMUNITY t rB,tfB Rise and Fall Times (10% –90% ) Figure 2 10 15 20 ns of the Driver Output tnR Receiver Noise Rejection No Response at Receiver 20 10 ns Pulse Width Output as per Figure 4 Note 2:“Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices should be operated at these limits. The tables of “Electrical Characteristics” and “Recommended Operating Conditions” provide conditions for actual device operation. Note 3:Unless otherwise specified min/max limits apply across the supply and temperature range listed in the table of “Recommended Operating Conditions”.All typical values are for TA = 25˚C and VCC = 5V. Note 4:All currents into device pins shown as positive, out of device pins as negative, all voltages referenced to ground unless otherwise noted. All values shown as max or min on absolute value basis. www.national.com 2
FIGURE 4. Receiver Noise Immunity: “No Response at Output” Input Waveforms
Physical Dimensionsinches (millimeters) unless otherwise noted Ceramic Dual-In-Line Package (J) Order Number DS3662J 16-Lead Molded Small Outline Package (M) Order Number DS3662WM www.national.com5
Physical Dimensionsinches (millimeters) unless otherwise noted (Continued) LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. National Semiconductor Corporation Americas Tel: 1-800-272-9959 Fax: 1-800-737-7018 Email: support@nsc.com National Semiconductor Europe Fax: +49 (0) 1 80-530 85 86 Email: europe.support@nsc.com Deutsch Tel: +49 (0) 1 80-530 85 85 English Tel: +49 (0) 1 80-532 78 32 Français Tel: +49 (0) 1 80-532 93 58 Italiano Tel: +49 (0) 1 80-534 16 80 National Semiconductor Asia Pacific Customer Response Group Tel: 65-2544466 Fax: 65-2504466 Email: sea.support@nsc.com National Semiconductor Japan Ltd. Tel: 81-3-5639-7560 Fax: 81-3-5639-7507 www.national.com Molded Dual-In-Line Package (N) Order Number DS3662N DS3662 Quad High Speed Trapezoidal Bus Transceiver National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.