ML6509CS Micro Linear, ML6509CS Datasheet
ML6509CS
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ML6509CS Summary of contents
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GENERAL DESCRIPTION The ML6509 BiCMOS SCSI terminator provides active termination in a SCSI system with single ended drivers and receivers, in full compliance with the SCSI-1, SCSI-2 and SCSI-3 recommendations. It provides a 2.85V reference through an internal 1V dropout ...
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ML6509 GENERAL DESCRIPTION One unique feature of the ML6509 is its support for a Low Power mode, for use in Notebook and portable computer applications, where it provides a 1mA (approximately 2.5K termination) for less than 6" cable lengths. This ...
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ABSOLUTE MAXIMUM RATINGS Signal Line Voltage ............................. –0.3 to TERMPWR +0.3V Regulator Output Current ................................... –100 to 300mA TERMPWR Voltage ..................................................... –0 Storage Temperature .......................................... –65°C to 150°C Soldering Temperature ..................................... 260°C for 10 sec Thermal Impedance ( ...
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ML6509 FUNCTIONAL DESCRIPTION The SCSI terminator helps in decreasing the transmission line effects with precise termination. Termination is conventionally provided at the beginning and end of the SCSI bus, however when additional peripherals are added, the termination needs to be ...
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Thus in an 8-bit wide SCSI bus arrangement (“A” cable), two ML6509s would be needed at each end of the SCSI cable in order to terminate the 18 active signal lines. 16-bit wide SCSI would use three ML6509s, while 32-bit ...
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ML6509 This is a very important characteristic that the terminator helps overcome by increasing the noise margin and boosting the step as high as possible. This capability for the ML6509 implementation is illustrated in the attached simulation graphs which show ...
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ML6509 SCSI TERMINATOR DRIVER END 2V 0.8V TERMINATOR END 2V 0.8V 100ns TIME (SECONDS) BOULAY TERMINATOR DRIVER END 2V 0.8V TERMINATOR END 2V 0.8V 100ns TIME (SECONDS) Conditions Low Cable impedance of 110 (worst case 10ns D 10 ...
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ML6509 DRIVER END 2V 0.8V TERMINATOR END 2V 0.8V DRIVER END 2V 0.8V TERMINATOR END 2V 0.8V Conditions Figure 6a. Signal Assertion/Negation Waveforms (Simulated) 8 ML6509 SCSI TERMINATOR 100ns 200ns TIME (SECONDS) BOULAY TERMINATOR 100ns 200ns TIME (SECONDS) Low Cable ...
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PHYSICAL DIMENSIONS 0.251 - 0.262 (6.38 - 6.65) 20 PIN 0.026 BSC (0.65 BSC) 0.008 - 0.012 0.033 - 0.037 (0.20 - 0.30) (0.84 - 0.94) inches (millimeters) Package: T20 20-Pin TSSOP 0.169 - 0.177 0.246 - ...
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... ORDERING INFORMATION PART NUMBER ML6509CS ML6509CT (EOL) © Micro Linear 1997 is a registered trademark of Micro Linear Corporation Products described herein may be covered by one or more of the following patents: 4,897,611; 4,964,026; 5,027,116; 5,281,862; 5,283,483; 5,418,502; 5,508,570; 5,510,727; 5,523,940; 5,546,017; 5,559,470; 5,565,761; 5,594,376. Other patents are pending. ...