The 74192 is a presettable synchronous 4bit updown decade counter. Chip,iconline,databook,datasheet catalog,datasheet archive. The ls160a and ls162a can be preset to any state, but will not count beyond 9. If preset to state 10, 1 1, within two clock pulses. Figure 1 shows the connections for simple ripple carry, in which the clock period must be longer than the cp to tc delay of the first stage, plus the cumulative cet to tc. Every state sj, is given by the fourtiple q qd, qc, qb, qa, where qa is least significant, as is. Dm74174 hexquad dtype flipflop with clear physical dimensions inches millimeters unless otherwise noted 16lead plastic dualinline package pdip, jedec ms001, 0. Note in most cases when a 74xx device is listed, but a 54xx device may also available. The original 7400series integrated circuits were made by texas instruments with the prefix sn to create the name sn74xx.
The 74ls160a163 is a counter chip, and a counter chip does what it sounds like. Dm74ls193 synchronous 4bit binary counter with dual clock. The ls249 is a 16pin version of the 14pin ls49 and includes full functional capability for lamp test and. Msi counter 74ls163 mode select table all signals must be high h to enable the count sequence to begin 6 7. Dm74ls00 quad 2input nand gates general description this device contains four independent gates each of which performs the logic nand function.
The mod5 counter produces a 3bit count sequence from 0 to 4. Ti, alldatasheet, datasheet, datasheet search site for electronic components and. For high speed counting applications, this presettable counter features an internal carry lookahead for cascading purposes. Synchronous 4bit counters, 74161 datasheet, 74161 circuit, 74161 data sheet.
Each flipflop has independent data, preset, clear and clock inputs and q and q outputs. Fairchild, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Provides 16 arithmetic operations add, subtract, compare, double, plus twelve other arithmetic operations. Synchronous presettable binary counter, 74163 datasheet, 74163 circuit, 74163 data sheet. Sn74196 datasheet, sn74196 circuit, sn74196 data sheet. Due to the popularity of these parts, other manufacturers released pintopin compatible logic devices which kept the 7400 sequence number as an aid to identification of compatible.
Synchronous 4bit updown counters dual clock with clear. We can special order any ics part number color code legend. Question 16 a student wishes to cascade multiple fourbit synchronous counters together. Msi counter 74x163 is a synchronous 4bit binary counter rco1 when all count bits are 1 and ent is asserted 37 38. H high voltage level h high voltage level one setup time prior to the lowtohigh cp transition l low voltage level. Dm74ls193 synchronous 4bit binary counter with dual clock dm74ls193 synchronous 4bit binary counter with dual clock general description the dm74ls193 circuit is a synchronous updown 4bit binary counter. The tc output is high when cet is high and the counter is at terminal count hllh. Feb 20, 20 msi counter 74ls163 mode select table all signals must be high h to enable the count sequence to begin 36 37.
Revised february 2000 74ac163 74act163 synchronous presettable binary counter 74ac163 74act163 synchronous presettable binary counter general description the acact163 are highspeed synchronous modulo16 binary counters. This output is a logic 0 when the counter is at it lower when the counter is a down counter. They are synchronously presettable for application in programmable dividers and have two types. Production processing does not necessarily include. 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.
Triple 3input nand 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. Separate count up and count down clocks are used and in either counting mode the circuits operate synchronously. The vhc163 is a highspeed synchronous modulo16 binary. It achieves the highspeed operation similar to equivalent bipolar schottky ttl while maintaining the cmos low power dissipation. Due to the popularity of these parts, other manufacturers released pintopin compatible logic devices which kept the 7400 sequence number as an aid. The mod2 counter toggles from a logic high to a logic low state on each clock pulse. General description the 74hc161 is a synchronous presettable binary counter with an internal lookhead carry. Synchronous 4bit updown counter the sn5474ls669 is a synchronous 4bit updown counter. Synchronous operation is provided by having all flipflops clocked simultaneously on the. Mm74c74 dual dtype flipflop experimentalists anonymous. The two internal counters are a mod2 counter and a mod5 counter, providing a total of four output stages. Updown counter presettable 4bit binary updown counter the sn5474ls192 is an updown bcd decade 8421 counter and the sn5474ls193 is an updown modulo16 binary counter. Note, load signal goes low when the count is 2 ent set to a logic 0.
Decodersdrivers the sn5474ls247 thru sn5474ls249 are bcdtosevensegment decoderdrivers. Outputs dm74s112 dual negativeedgetriggered master. Because presetting is synchronous, a low logic level at the load load input disables the counter and causes the outputs to agree with the setup data after the next clock pulse, regardless of the levels of enp and ent. The 74ls163 is a completely synchronous counter, that means all updates of the states occur when the clock clk is activated. Synchronous 4bit counters, 74163 datasheet, 74163 circuit, 74163 data sheet. Presetting the counter to the number on the preset data inputs input a input d is accomplished by a low asynchronous parallel load input load. For example, figure cntr1 shows one way of using the 163 as a modulo11 counter. It is important for students to consult the datasheet for the 74hct163 counter circuit in order to fully understand what is going on in these two cascaded counter circuits. The circuit is a 4 bit counter, that means it has 24 16 states. There are a variety of models that accomplish this, but for our purposes we are using the 74ls160 or the 74ls163 i will discuss their differences later because of their common application in. To implement synchronous multistage counters, the tc outputs can be used with the cep and cet inputs in two different ways. Msi counter 74ls163 mode select table all signals must be high h to enable the count sequence to begin 36 37.
Feb 20, 20 msi counter 74ls163 mode select table all signals must be high h to enable the count sequence to begin 6 7. September 1993 3 philips semiconductors product speci. Ic 7490 datasheet pdf decade and binary counters, 7490 datasheet, 7490 pdf, pinout, data, circuit, ic, manual, substitute, parts, schematic, equivalent. Fairchild, alldatasheet, datasheet, datasheet search site for electronic. Synchronous operation is provided by having all flipflops clocked simultaneously, so that the outputs. The rco output, which detects state 15, is used to. That is, it can be preset to any number between 0 and 15. Sn5474ls160a sn5474ls161a sn5474ls162a sn5474ls163a state diagram ls160a ls162a ls161a ls163a 12, 14, or 15, it will return to its normal sequence note. Synchronous operation is provided by having all flipflops clocked simultaneously on the positivegoing edge of the clock cp. Html pages 1 2 3 4 5 6 7 8 9 10 11 12 14 15 16 17 18 19 20 21 22 23. It provides, in one package, the ability to select one bit of data from up to eight. Mm74c74 dual dtype flipflop mm74c74 dual dtype flipflop general description the mm74c74 dual dtype flipflop is a monolithic complementary mos cmos integrated circuit constructed with n and pchannel enhancement transistors.
Ti, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. By clocking all flipflops simultaneously so the outputs change coincident with. Msi counter 74x163 is a synchronous 4bit binary counter rco1 when all count bits are 1 and ent is asserted 7 8. The ls247 and ls248 are functionally and electrically identical to the ls47 and ls48 with the same pinout configuration. We can special order any ics 100 piece minimum new sale refurbished closeout part number color code legend. Oct 12, 2015 ic 7490 datasheet pdf decade and binary counters, 7490 datasheet, 7490 pdf, pinout, data, circuit, ic, manual, substitute, parts, schematic, equivalent. It provides, in one package, the ability to select one bit of data from up to eight sources. The ls151 can be used as a universal function generator to generate any logic function of four variables. Html pages 1 2 3 4 5 6 7 8 9 10 11 12 14 15 16 17 18 19 20 21 22. The following is a list of 7400series digital logic integrated circuits. Ti 5030100mhz resettable decade or binary counterslatches,alldatasheet. The mod2 and mod5 counters operate separately with individual clock inputs.