CD4510 BCD Up Down Counter

CD4510 Presettable BCD Up Down Counter consist of four synchronously clocked D-type flip-flops (with a gating structure to provide T-type flip-flop capability) connected as counters.

These counters can be cleared by a high level on the RESET line, and can be preset to any binary number present on the jam inputs by a high level on the PRESET ENABLE line. The CD 4510 will count out of non-BCD counter states in a maximum of two clock pulses in the up mode, and a maximum of four clock pulses in the down mode.

If the CARRY-IN input is held low, the counter advances up or down on each positive-going clock transition. Synchronous cascading is accomplished by connecting all clock inputs in parallel and connecting the CARRY-OUT of a less significant stage to the CARRY-IN of a more significant stage.

The CD4510 BCD Up Down Counter can be cascaded in the ripple mode by connecting the CARRY-OUT to the clock of the next stage. If the UP/DOWN input changes during a terminal count, the CARRY-OUT must be gated with the clock, and the UP/DOWN input must change while the clock is high. This method provides a clean clock signal to the subsequent counting stage.

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Features of CD4510 BCD UP Down Counter

• Medium-speed operation - fCL = 8 MHz typical at 10 Volts

• Synchronous internal carry propagation

• Reset and Preset capability

• 100% tested for quiescent current at 20 Volts

• 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 CD4510

• Up/Down difference counting

• Multistage synchronous counting

• Multistage ripple counting

• Synchronous frequency dividers

Specifications Of CD4510

• VCC (Min) (V) : 3

• VCC (Max) (V) : 18

• Bits : 4

• Voltage (Nom) (V) : 5,10,15

• F @ Nom Voltage (Max) (Mhz) : 8

• ICC @ Nom Voltage (Max) (mA) : 0.03

• tpd @ Nom Voltage (Max) (ns) : 200

• IOL (Max) (mA) : 1.5

• IOH (Max) (mA) : -1.5

• Function : Counter

• Operating Temperature Range (C) : -55 to 125

Related Links

• CD4510 Datasheet

• Universal Digital Counter Using CD 4510