Pin diagram of 74ls164 pdf

Each decoder has an active low enable input which can be used as a data input for a 4output demultiplexer. The flatpak version has the same pinouts connection diagram as the dual inline package. Dm74ls191 synchronous 4bit updown counter with mode control. Recent listings manufacturer directory get instant insight into any electronic component. How would you build moving led signs using ic 74ls164. Thanks, and sorry that this post got rather lengthy. Pinouts for 74ls series for csc 258 74ls00 four twoinput nand gates 12 45 9 10 12 74ls02 four twoinput nor gates 23 56. Not more than datasheeg output should be shorted at a time, and duration should not exceed one second. Y alternate military aerospace device 54ls164 is avail able contact a national semiconductor sales office. Shift registers are a very important part of digital logic, they act as glue in between the parallel and serial worlds. The device accepts a three bit binary weighted address on input pins a0, a1 and a2 and when enabled will produce one active low output with the remaing seven being high. Dm74ls86 quad 2input exclusiveor gate dm74ls86 quad 2input exclusiveor gate general description this device contains four independent gates each of which performs the logic exclusiveor function.

Seven nand gates and one driver are connected in pairs. Dm74ls123 dual retriggerable oneshot with clear and complementary outputs general description the dm74ls123 is a dual retriggerable monostable multivibrator capable of generating output pulses from a few nanoseconds to extremely long duration up to 100% duty cycle. Serialin parallelout shift register the sn54 74ls164 is a high speed 8bit serialin parallelout shift register. Bcd to 7segment decoderdriver the sn5474ls47 are low power schottky bcd to 7segment decoder drivers consisting of nand gates, input buffers and seven andorinvert gates. Pinouts for 74ls series pinouts for 74ls series for csc. The sn54 74ls164 is a high speed 8bit serialin parallelout shift regis ter. The ls160a and ls162a can be preset to any state, but will not count beyond 9. Serial data is entered through a 2input and gate synchronous with the low to high transition of the clock. When atmega328 chip is used in place of arduino uno, or vice versa, the image below shows the pin mapping between the two. The modulus of a counter is the number of unique states through which the counter will sequence. The device features an asynchronous master reset which clears the. Octal dtype flipflop with 3state output the sn5474ls373. If you are wondering how to make an led moving sign diythen probably you would like to refer to a few of the circuit designs already published here on. The sn5474ls164 is a high speed 8bit serialin parallelout shift register.

The serial inputs pin 1 and 2 of the ic has a special purpose of resetting the above procedure in an interesting pattern. Serialin parallelout shift register the sn5474ls164 is a high speed 8bit serialin parallelout shift register. Sn5474ls160a sn5474ls161a sn5474ls162a sn5474ls163a state diagram ls160a ls162a ls161a ls163a 12, 14, or 15, it will return to its normal sequence note. Name 1 by inout io b channel y inout 2 bx inout io b channel x inout 3 cy inout io c channel y inout 4 cx or cy outin io c common outin 5 cx inout io c channel x inout 6 inh i disables all channels. Dm74ls155 dm74ls156 dual 2line to 4line decodersdemultiplexers dm74ls155 dm74ls156 dual 2line to 4line decodersdemultiplexers general description these ttl circuits feature dual 1lineto4line demultiplexers with individual strobes and common binaryaddress inputs in a single 16pin package. It provides timing to the processor for operations. If i have a shared clock signal for both the ics which seems to be a common praticethen this high input on the second ics input would get shifted 8 times, until the first ic has any way of affecting that pin so all outputs of the second ic would be high by then. Dual 1of4 decoder demultiplexer the lsttlmsi sn5474ls9 is a high speed dual 1of4 decoderdemultiplexer. The device features an asynchronous master reset which clears the register setting all outputs low independent of the clock. Operation is not restricted to binary codes, the device will work with any monotonic code. Files are available under licenses specified on their description page. Data is entered serially through one of two inputs dsa or. The device features two serial data inputs dsa and dsb, eight parallel data outputs q0 to q7.

Data is entered serially through dsa or dsb and either input can be used as an active high enable for data entry through the other input. Dm74ls123 dual retriggerable oneshot with clear and. The ls151 can be used as a universal function generator to generate any logic function of four variables. If preset to state 10, 1 1, within two clock pulses. Maximum ratings are those values beyond which damage to the device may occur. Microprocessor 8086 pin configuration tutorialspoint. The ic or integrated circuit is a little black chip, it is a root of modern electronics, and also an essential component in many electronic circuits. They reduce wire counts, pin use and even help take load off of your cpu by being able to store their data. It uses 5v dc supply at v cc pin 40, and uses ground at v ss pin 1 and 20 for its operation.

Nte74ls164 integrated circuit ttl 8 bit parallel out. Each device has three inputs permitting the choice of either leading edge or. They offer active low, high sink current outputs for driving indicators directly. Octal dtype flipflop with 3state output the sn5474ls373 consists of eight latches with 3state outputs for bus.

Ground, the ground pin connects the 555 timer to the negative 0v supply rail. Flip flop based staircase switch circuit diagram cd 40 comes in 14 pin dual inline package. Curtain opener and closer project circuit diagram and working. Since 4 stages are required to count to at least 10, the counter must be. View notes pinouts for 74ls series from csc 258 at university of toronto. The applications of integrated circuits involve in each and every electronic circuit board, embedded systems and various electronic projects. Ic 74ls164 pdf home integrated circuits 74 series 74ls series. Dm74ls191 synchronous 4bit updown counter with mode. This circuit will open and close the curtain automatically just by pushing a switch. Dm74ls191 synchronous 4bit updown counter with mode control general description the dm74ls191 circuit is a synchronous, reversible, up down counter.

All structured data from the file and property namespaces is available under the creative commons cc0 license. So when you push the switch the a pin goes low and when you release the switch the a pin goes high, giving a high going clock edge which is whats required by the ls you do not need a pull down resistor. It provides, in one package, the ability to select one bit of data from up to eight sources. Learn about 7 segment displays with its pin diagram, description, datasheet, its working, types of 7 segment displays and how to select a 7 segment display. The device has two independent decoders, each accepting two inputs and providing four mutually exclusive active low outputs. Name 1 y ch 0 inout io channel y0 inout 2 y ch 2 inout io channel y2 inout 3 y com outin io y common outin 4 y ch 3 inout io channel y3 inout 5 y ch 1 inout io channel y1 inout 6 inh i disables all channels. A negative pulse on this pin sets the internal flipflop when the voltage drops below vcc causing the output to switch from a low to a high state. Pin 14 gnd pin 7 fast and ls ttl data 51 sn54 74ls164 logic diagram 1 2 a d q, sn54 74ls164 serialin parallelout shift register the sn54 74ls164 is a high speed 8, 14 1 connection diagram dip top view vcc 14 q7 q6 q5 q4 mr 12 11, same pinouts connection diagram as the dual inline package.