Introduction who knows more about parallel ports than lava. The goal of this manual is to assist you in your application of a cio board to your. Ibm personal computer xt hardware reference library. Pdf 74ls244, 74ls244 74s244 112ma n74ls244n, 74s244n sol20 74ls244d wf08670s 74ls244 pin configuration and. Dm74ls244 octal 3state bufferline driverline receiver physical dimensions inches millimeters unless otherwise noted continued 20lead plastic dualinline package pdip, jedec ms001, 0. Dm74ls05 hex inverters with opencollector outputs physical dimensions inches millimeters unless otherwise noted continued 14lead plastic dualinline package pdip, jedec ms001, 0. Termination resistance should be equal to zout of pulse generators. Thinkpad thinkpad mini dock docking station pdf manual download. Dm74ls32 quad 2input or gate dm74ls32 quad 2input or gate general description this device contains four independent gates each of which performs the logic or function. Design and implementation of digital ic tester interface to ibm. The ls247 and ls248 are functionally and electrically identical to the ls47 and ls48 with the same pinout configuration. Decodersdrivers the sn5474ls247 thru sn5474ls249 are bcdtosevensegment decoderdrivers. Ibm e74 operating instructions manual pdf download.
If comprehensive data for am26la32acn to optimize the supply chain, including costdown, timesaving, cross references, parametric, counterfeit risk, alternative components, obsolescence management forecasts is expected, please contact dahasheet. Dm74ls154 4line to 16line decoderdemultiplexer dm74ls154 4line to 16line decoderdemultiplexer general description each of these 4lineto16line decoders utilizes ttl circuitry to decode four binarycoded inputs into one of sixteen mutually exclusive outputs when both the strobe inputs, g1 and g2, are low. Octal d flipflop with clear the sn5474ls273 is a highspeed 8bit register. Device software consist of three main functions which are. A current list of supported open system configurations is available from. Ahighonnoecausestheoutputsto assume a highimpedance off state. Mitsubishi octal bufferline drivers with 3state outputnoninverted,alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. General description the 74lv244 is a lowvoltage sigate cmos device and is pin and function compatible with 74hc244 and 74hct244. The decoder accepts three binary weighted inputs a 0, a 1, a 2 and when enabled provides eight mutually exclusive active low outputs o 0 o7.
Based on this datasheet, and if i had to guess am26lsacn would try and put pin4 to am26ls32acn datasheet and would let pin12 floating. Octal bufferline drivers with 3state outputnoninverted texas instruments. Chip,iconline,databook,datasheet catalog,datasheet archive. If comprehensive data for am26la32acn to optimize the supply chain, including costdown, timesaving, cross references, parametric, counterfeit risk, alternative components, obsolescence management forecasts is expected, please contact dahasheet datasheet. These buffersline drivers are designed to improve both the performance and. Multifunction capability mutually exclusive outputs.
Specify by appending the suffix letter x to the ordering code. However, a higherperformance and lowercost video system will result from implementation of an 8bit bios rom which is copied into system ram by the system bios on startup. Page 3 references in this publication to ibm products, programs, or services do not imply that ibm intends to make these available in all countries in which ibm operates. The register consists of eight dtype flipflops with a common clock and an asynchronous active low master reset. For motherboard eisaisabus implementations, the video bios may alternately be incorporated directly into the system bios. The ls249 is a 16pin version of the 14pin ls49 and includes full functional capability for lamp test and. If its not shown correctly, click here to open the file on a separate window.
Electronic manufacturer, part no, datasheet, electronics description. The ls42 is fabricated with the schottky barrier diode process for high speed and is completely compatible with all motorola ttl families. This device is supplied in a 20pin package featuring 0. The 74lv244 is an octal noninverting bufferline driver with 3state outputs. Find ibm storage solution briefs, white papers, data sheets and more. Highlights provides a highly secure architecture and stable platform for deploying business processing applications facilitates consolidation of unix, ibm i and linux workloads for midsized businesses. R1lv0408d series has realized higher density, higher performance and low power consumption. View and download ibm thinkpad thinkpad mini dock user manual online. The parallel port as it exists on pcs today has a long history and lava, founded in 1984, has been there all the way. Ibm mobile systems thinkpad computer hardware maintenance manual.
Download fairchild semiconductor man6760 pdf datasheet file. Quad 2input nor gate 14 12 11 10 9 123456 vcc 8 7 gnd guaranteed operating ranges symbol parameter min typ max unit vcc supply voltage 54 74 4. This white paper defines and discusses parallel port technologies in the context of lavas parallel product offerings. Jan 25, 2020 based on this datasheet, and if i had to guess am26lsacn would try and put pin4 to am26ls32acn datasheet and would let pin12 floating. Sn74198 application notes, sn74198 circuits, sn74198 pinout, sn74198 pdf. Ibm mobile systems thinkpad computer hardware maintenance manual february 2003 this manual supports. Sn54 74ls244 inputs output 1g, 2g d l l h l h x l h z sn5474ls241 inputs output inputs output 1g d2g l l h l h x l h z h h l l h x l h z h high voltage level l low voltage level x immaterial z high impedance guaranteed operating ranges symbol parameter min typ max unit vcc supply voltage 54 74 4. Quad 2input exclusive or gate 14 12 11 10 9 123456 vcc 8 7 gnd truth table in out a b z l l l l h h h l h h h l guaranteed operating ranges symbol parameter min typ max unit vcc supply voltage 54 74 4. Sp74sc244n 74ls244 ttl buffer 74ls244 74ls244 data sheet logic description 74ls244 sp74sc244f. If you only want to drive one or two ssrs, all you need is a 74ls244 output. Ibm thinkpad thinkpad mini dock user manual pdf download. Oneoften decoder the lsttlmsi sn5474ls42 is a multipurpose decoder designed to accept four bcd inputs and provide ten mutually exclusive outputs. Index number ccin part number units per assembly description. Dm74ls244 octal 3state bufferline driverline receiver.
The ibm personal computer technical reference manual is designed to provide hardware. Quad 2input or gate 14 12 11 10 9 123456 vcc 8 7 gnd guaranteed operating ranges symbol parameter min typ max unit vcc supply voltage 54 74 4. The data bus is buffered by a 74ls244 bufferdriver. Highlights provides a highly secure architecture and stable platform for deploying business processing applications facilitates consolidation of unix, ibm i. Snx4ls24x, snx4s24x octal buffers and line drivers with 3. Circuit ibm pc front panel connector computer mother board circuit diagram ibm pc front panel 2 connector circuit 74ls244 as buffer ibm. The ls8 is a high speed 1of8 decoderdemultiplexer fabricated with the low power schottky barrier diode process. Snx4ls24x, snx4s24x octal buffers and line drivers with 3state outputs 1 1 features 1 inputs tolerant down to 2 v, compatible with 3. An important notice at the end of this data sheet addresses availability, warranty, changes, use in safetycritical applications, intellectual property matters. Dm74s00 quad 2input nand gate physical dimensions inches millimeters unless otherwise noted continued 14lead plastic dualinline package pdip, jedec ms001, 0. The data bus is buffered by a 74ls244 bufferidriver. Ibm totalstorage 3581 tape autoloader express models support. The 74ahcahct244 is an octal noninverting bufferline driver with 3state outputs. Page 2 ibm e74 color monitor users guide 633207n 633297n 633247n, 630747n 633267n e74 enoindexeng.
Octal buffersline driversline receiversnon inverted threestate outputs on semiconductor. If military aerospace specified devices are required please contact the national semiconductor sales. Features n balanced propagation delays n all inputs have schmitttrigger actions. Office distributors for availability and specifications. Logic of 74ls244 74ls244 20 pins 74s244n 74l5244 logic 74ls244 74ls244 74ls244 pin configuration and specifications for 74ls244d signetics 74ls244 text. Ibm ts4300 tape library is a highdensity, highly scalable, easytomanage tape library designed to keep data securely stored longterm, while helping reduce the costs associated. General purpose, for use in industrial and consumer equipment. This could be done by using three buffers type 74ls244 which controlled via control. Philips semiconductors product specification octal buffer 3state 74als244a74als244a1 1991 feb 08 3 logic diagram vcc pin 20 ia0 sf00230 oea ia3 ia2 ia1 2 4 6 8 1 ya0 ya1 ya2 ya3. The 3state outputs are controlled by the outputs enable inputs 1oe and 2oe. Sn74198 datasheet, sn74198 pdf, datasheet, datas sheet, fiche technique, datasheets, fiches techniques, pdf, texas instruments, registres a decalage. The ibm personal computer xt technical reference manual describes. The 74ahcahct244 is a highspeed sigate cmos device.
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