| Allicdata Part #: | MC74ACT163MEL-ND |
| Manufacturer Part#: |
MC74ACT163MEL |
| Price: | $ 0.00 |
| Product Category: | Integrated Circuits (ICs) |
| Manufacturer: | ON Semiconductor |
| Short Description: | IC COUNTER SYNC BINARY 16-SOEIAJ |
| More Detail: | Counter IC Binary Counter 1 Element 4 Bit Positive... |
| DataSheet: |  MC74ACT163MEL Datasheet/PDF |
| Quantity: | 1000 |
| 1 +: | 0.00000 |
Specifications
| Timing: | Synchronous |
| Base Part Number: | 74ACT163 |
| Supplier Device Package: | 16-SOEIAJ |
| Package / Case: | 16-SOIC (0.209", 5.30mm Width) |
| Mounting Type: | Surface Mount |
| Operating Temperature: | -40°C ~ 85°C |
| Voltage - Supply: | 4.5V ~ 5.5V |
| Trigger Type: | Positive Edge |
| Count Rate: | 140MHz |
| Series: | 74ACT |
| Reset: | Synchronous |
| Number of Bits per Element: | 4 |
| Number of Elements: | 1 |
| Direction: | Up |
| Logic Type: | Binary Counter |
| Part Status: | Obsolete |
| Packaging: | Tape & Reel (TR) |
Description
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The MC74ACT163 is a programmable divide-by-N counter containing four stages of divide-by-two, divide-by-four, or divide-by-eight elements. It is a synchronous, programmable logic device (PLD) that can be programmed to divide an input signal into an output signal. This module can also be programmed to count down from N to zero. It is an industry-standard 4-bit synchronous binary counter package and can be bought from almost all semiconductor manufacturers.The MC74ACT163MEL is designed to be used in applications such as pulse width modulation, signal conditioning, signal processing, and timing. It is well suited for applications where high counter sequence stability is required, such as video synchronization, communication, and instrumentation. It is also useful in embedded systems where counting operations are frequently required.The MC74ACT163MEL’s working principle is based on a mod-N counter. As the name implies, a mod-N counter is a counter that counts from 0 to N-1 and then flips back to 0. It\'s basically like a regular counter except that it cycles through limited numbers of values. The MC74ACT163MEL is a four-bit synchronous binary counter meaning it has four stages of divide-by-two stages or four stages of divide-by-four stages or four stages of divide-by-eight stages.The divide-by-two stage of the MC74ACT163MEL consists of two logic gates: an AND gate and an XNOR (exclusive-NOR) gate. The AND gate and the XNOR gate are connected such that when an input signal is applied to the AND gate, the output of the XNOR gate is complemented. This process is repeated each time an input signal is applied to the AND gate; thus in each cycle, the output of XNOR gate complements and a count of 1 is added.The divide-by-four stage of the MC74ACT163MEL consists of four logic gates: an OR gate, an AND gate, a NAND (not and) gate, and an XNOR gate. The OR, AND, and NAND gates are all connected in an arrangement so that when an input signal is applied to the AND gate, the output of the XNOR gate is complemented. As in the divide-by-two stage, this process is repeated each time an input signal is applied; thus a count of 4 is added in each cycle.The divide-by-eight stage of the MC74ACT163MEL consists of eight logic gates: four OR gates, two AND gates, a NAND gate, and an XNOR gate. The logic gates are connected in an arrangement so that when an input signal is applied to the AND gate, the output of the XNOR gate is complemented. As in the divide-by-two and divide-by-four stages, this process is repeated each time an input signal is applied; thus a count of 8 is added in each cycle.After all the stages of the MC74ACT163MEL are completed, its output signal will have a frequency that is equal to the input signal divided by the N-value (2, 4, or 8). For example, if the input signal is 16Hz and the MC74ACT163MEL is programmed to divide by 8, the output signal will have a frequency of 2Hz.To sum up, the MC74ACT163MEL is a synchronous mod-N counter used in pulse width modulation, signal conditioning, signal processing, and timing applications where high counter sequence stability is required. It works by dividing an input signal into an output signal that has a frequency equal to the input signal divided by the N-value. With its four stages of divide-by-two, divide-by-four, or divide-by-eight elements, the MC74ACT163MEL is a powerful and versatile device for reducing input signal frequencies and for counting down from N to zero.
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