74ls244 vs 74hc244 pdf

Oe controls the outputs so that the buses are effectively isolated. January 20 diodes incorporated 74hc04 new product hex inverters description. The 74ahcahct244 is a highspeed sigate cmos device. I needed a small pa stage for my qrss beacon so i designed this pcb for the task. Glossary of electronic and engineering terms, ic 8bit.

Mm74hc244 octal 3state buffer mm74hc244 octal 3state buffer general description the mm74hc244 is a noninverting buffer and has two active low enables 1g and 2g. Beginners introduction to the assembly language of atmel. Sn74ls240, sn74ls244 octal bufferline driver with 3. Octal buffers and line drivers with 3state outputs, sn74ls244n datasheet, sn74ls244n circuit, sn74ls244n data sheet. This device is supplied in a 20pin package featuring 0. The 74lv244 is an octal noninverting bufferline driver with 3state outputs. Write cycle with use of ale as talw t twal tds t v il1 v ih1 v il1 ale trcv tc1s tar tc1h trd v ih2 v il1 v ih1 ol tdr rcv v ih1 il2 v oh v cs. Octal d flipflop with clear the sn5474ls273 is a highspeed 8bit register. Ti, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Dm74ls244 octal 3state bufferline driverline receiver physical dimensions inches millimeters unless otherwise noted continued 20lead plastic dualinline package pdip, jedec ms001, 0. Recommended operating conditions symbol parameter value unit vcc supply voltage 2 to 6 v vi input voltage 0 to vcc v vo output voltage 0 to vcc v top operating temperature.

Dm74ls244 octal 3state bufferline driverline receiver. The enable input e can be used to isolate the buses. Snx4hc244 octal buffers and line drivers with 3state outputs. Beginners introduction to the assembly language of atmelavr. Glossary of electronic and engineering terms, ic 8bit buffer. The cd54 74hc245 and cd5474hct245 allow data trans m, cd54 74hc245 cd5474hct245 m a x im u m ratings, absolutem axim um values. Chip,iconline,databook,datasheet catalog,datasheet archive. State noninverting bufferline driver line receiver high. The 3state outputs are controlled by the output enable inputs 1oe and 2oe. Semiconductor components industries, llc, 1999 december, 1999 rev.

The 74hc244 ic, a non inverting version of the 240 can also be used in this application. The 74ahcahct244 is an octal noninverting bufferline driver with 3state outputs. Sn5474ls242 sn5474ls243 guaranteed operating ranges symbol parameter min typ max unit vcc supply voltage 54 74 4. 5388 fast and ls ttl data sn5474ls240 sn5474ls241 sn54 74ls244 truth tables. General description the 74hc243 is a highspeed sigate cmos device and is pin compatible with low power schottky ttl lsttl. The board is supplied with 8 to 10 v, the output of an oscillator at least 1v peak to peak and an enable signal to turn on the pa and you get approx 300mw at the output. Pick a 5400 series 54x244 if need the temperature range, otherwise use the 7400 series 74x244. Sn5474ls240 sn5474ls241 sn5474ls244 dc characteristics over operating temperature range unless otherwise specified sbl p limits symbol parameter min typ max uiunit t c di itest conditions vih input high voltage 2. State outputs the sn74ls240 and sn74ls244 are octal buffers and line drivers designed to be employed as memory address drivers, clock drivers and busoriented transmittersreceivers which provide improved pc board density.

Gate cmos the 74hc244 is identical in pinout to the ls244. The 3state outputs are controlled by the outputs enable inputs 1oe and 2oe. Snx4ls24x, snx4s24x octal buffers and line drivers with 3. Technical data cd54 74hc245 cd5474hct245 highspeed cmos logic octaibus transceiver, 3, m par able to th a t o f ls tt l circuits. The device can be used as two 4bit buffers or one 8bit buffer. The output enable inputs 1oe and 2oe control the 3state outputs. Snx4hc244 octal buffers and line drivers with 3state. Direction input dr controls transmission of data from bus a to bus b or bus b to bus a depending upon its logic level.

The ls247 features a lamp test input and have full rippleblanking inputoutput controls. The 74lv244 is identical to the 74lv240 but has noninverting outputs. Octal bus transceiver the sn5474ls245 is an octal bus transmitterreceiver designed for 8line asynchronous 2way data communication between data buses. Ahighonnoecausestheoutputsto assume a highimpedance off state.

These device types are designed to be used as memory address drivers. Compare pricing for stmicroelectronics 74hc244 across 2 distributors and discover alternative parts, cad models, technical specifications, datasheets, and more on octopart. Octal 3state bufferline driverline receiver, 74ls244 pdf download fairchild semiconductor, 74ls244 datasheet pdf, pinouts, data sheet, equivalent, schematic, cross reference, obsolete, circuits. Sn74ls247 bcdtosevensegment decodersdrivers the sn74ls247 is a bcdtosevensegment decoderdrivers. The ls247 has activelow outputs for direct drive of indicators. If you use hc, dont forget to tie unused inputs either to gnd or the supply voltage, otherwise the buffers might produce extra noise by capacitive switching. Snx4ls24x, snx4s24x octal buffers and line drivers with 3state outputs 1 1 features 1 inputs tolerant down to 2 v, compatible with 3. A high on noe causes the outputs to assume a highimpedance off. Bgmicro electronics home semiconductors logic ttl 74ls series 74ls244 tristate octal buffer line driver.