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A decade counter may have each (that is, it may count in binary-coded decimal, as the 7490 integrated circuit did) or other binary encodings. A decade counter is a binary counter designed to count to 1001 (decimal 9). An ordinary four-stage counter can be easily modified to a decade counter by adding a NAND gate as in the schematic to the right.
synchronous presettable up/down 4-bit decade counter, clear 16 SN74LS192: 74x193 1 synchronous presettable up/down 4-bit binary counter, clear 16 SN74LS193: 74x194 1 4-bit bidirectional universal shift register 16 SN74194: 74x195 1 4-bit parallel-access shift register 16 SN74195: 74x196 1 presettable 4-bit decade counter/latch 14 SN74196: 74x197 1
While most dekatrons are decimal counters, models were also made to count in base-5 and base-12 for specific applications. The dekatron fell out of practical use when transistor-based counters became reliable and affordable. Today, dekatrons are used by electronic hobbyists in simple "spinners" that run off the mains frequency (50 Hz or 60 Hz ...
For power-of-2 integer division, a simple binary counter can be used, clocked by the input signal. The least-significant output bit alternates at 1/2 the rate of the input clock, the next bit at 1/4 the rate, the third bit at 1/8 the rate, etc. An arrangement of flipflops is a classic method for integer-n division. Such division is frequency ...
A very early CD4029A counter IC, in 16-pin ceramic dual in-line package (DIP-16), manufactured by RCA Colorized IC die and schematics of CD4011BE NAND gate. The 4000 series was introduced as the CD4000 COS/MOS series in 1968 by RCA [1] as a lower power and more versatile alternative to the 7400 series of transistor-transistor logic (TTL) chips.
Changing the intro to talk about digital counters instead of electronic counters, would cover mechanical counters, since counters by definition are always digital, whether mechanical or electronic, since they "count". -- 70.51.200.101 02:14, 10 March 2015 (UTC) Support per nom. CookieMonster755 (talk) 00:49, 11 March 2015 (UTC)
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A resistance decade box, made in East Germany. A decade box is a piece of test equipment that can be used during prototyping of electronic circuits to substitute the interchanging of different values of certain passive components with a single variable output.