CD4029 Binary-Decade Up-Down Counter

The CD4029B 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 JAN signals, Q1, Q2, Q3, Q4 and a CARRY OUT signal are provided as outputs.

Features of CD4029 Binary-Decade Up-Down Counter:

• Medium-speed operation… 8 MHz (typ.) @ CL = 50 pF and VDD–VSS = 10 V.
• 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 quiescent current at 20 V.
• 5-V, 10-V, and 15-V parametric ratings.
• Standardized, symmetrical output characteristics.
• Maximum input current of 1 µA at 18 V over full package-temperature range; 100 nA at 18 V and 25°C.
• Noise margin (full package-temperature range):
• 1 V at VDD = 5 V.
• 2 V at VDD = 10 V .
• 2.5 V at VDD = 15 V.

Applications of CD4029 Binary-Decade Up-Down Counter:

• Programmable binary and decade counting/frequency synthesizers-BCD output.
• Analog to digital and digital to analog conversion.
• Up/Down binary counting.
• Magnitude and sign generation.
• Up/Down decade counting.
• Difference counting.