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CD4029 - Binary Decade Up-Down Counter IC

CD4029 - Binary Decade Up-Down Counter IC

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  • High-Voltage Type (20V Rating)
  • Medium Speed Operation: 8MHz (Typ.) at CL = 50pF and VDD – VSS = 10V
  • Multi-Package Parallel Clocking for Synchronous High Speed Output Response or Ripple Clocking for Slow Clock Input Rise and Fall Times
  • “Preset Enable” and Individual “Jam” Inputs Provided.
  • Binary or Decade Up/Down Counting.
  • BCD Outputs in Decade Mode.
  • 100% Tested for Maximum Quiescent Current at 20V.
  • 5V, 10V and 15V Parametric Ratings.
  • Standardized Symmetrical Output Characteristics.
  • Maximum Input Current of 10A at 18V Over Full Package-Temperature Range; 100nA at 18V and +25oC.
  • Noise Margin (Over Full Package Temperature Range): – 1V at VDD = 5V – 2V at VDD = 10V – 2.5V at VDD = 15V.
  • Meets All Requirements of JEDEC Tentative Standards No. 13B, “Standard Specifications for Description of “B” Series CMOS Device’s.

CD4029 - Binary Decade Up-Down Counter IC

The CD4029 IC consists of a four-stage binary or BCD-decade up/ down counter with provisions for look-ahead carry in both counting modes. The inputs consist of a single CLOCK, CARRY-IN (CLOCK ENABLE), BINARY/DECADE, UP/DOWN, PRESET ENABLE, and four individual JAM signals. Q1, Q2, Q3, Q4, and a CARRY OUT signal are provided as outputs.

A high PRESET ENABLE signal allows information on the JAM INPUTS to preset the counter to any state asynchronously with the clock. A low on each JAM line, when the PRESET-ENABLE signal is high, resets the counter to its zero counts. The counter is advanced one count at the positive transition of the clock when the CARRY-IN and PRE-SET ENABLE signals are low. Advancement is inhibited when the CARRY-IN or PRESET ENABLE signals are high. The CARRY-OUT signal is normally high and goes low when the counter reaches its maximum count in the UP mode or the minimum count in the DOWN mode provided the CARRY-IN signal is low. The CARRY-IN signal in the low state can thus be considered a CLOCK ENABLE.

The CARRY-IN terminal must be connected to VSS when not in use. Binary counting is accomplished when the BINARY/DECADE input is high; the counter counts in the decade mode when the BINARY/DECADE input is low. The counter counts up when the UP/DOWN input is high, and down when the UP/DOWN input is low. Multiple packages can be connected in either a parallel clocking or a ripple-clocking arrangement as shown in Figure 17. Parallel clocking provides synchronous control and hence faster response from all counting outputs. Ripple-clocking allows for longer clock input rise and fall times. The CD4x Series CD4029 is supplied in these 16-lead outline packages: Braze Seal DIP H4X Frit Seal DIP H1F Ceramic Flatpack H6W.

Pinout:

Pinout of CD4029 IC

Pinout of CD4029 IC

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Specification:

Part number CD4029BMS
DC Supply Voltage Range, (VDD)  -0.5V to +20V
Input Voltage Range, All Inputs  -0.5V to VDD +0.5V
DC Input Current, Any One Input ±10mA
Operating Temperature Range  -55°C to +125°C
Storage Temperature Range (TSTG)  -65°C to +150°C
Lead Temperature (During Soldering)  +265°C

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  • All orders confirmed before 3 pm IST are shipped on the
    same day, barring rare pickup delays on holidays or disturbances
  • Delivery time in Metro cities is 1-3 days, Others it is
    3-7 days. It varies based on location, reliant on courier services
  • Return window: 7 days from receipt unless stated
    otherwise. No refunds/replacements after
  • Returns only for non-working/damaged products are accepted
  • Initiate return requests to our customer service team via Support ticket or contact us at +91-8123057137
  • Refunds are processed within 3-4 working days post inspection and approval.

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ADDITIONAL RESOURCES

1.How does CD4029 work?

  • The CD4029 is an up/down binary/decade counter with a presettable voltage level that counts in either binary or decade mode depending on the voltage level applied at the binary/decade input. If the carry in and preset enable inputs are both logical "0," the counter is advanced one count on the positive-going edge of the clock.

2. What is up down decade counter?

  • Counting up and counting down is accomplished by using two count inputs, one of which is held HIGH while the other is clocked. On the positive-going transition of this clock, the outputs change.