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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
Package Includes:
Selected qty of IC - CD4029
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 |
Shipping & Returns
Shipping & Returns
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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.