CD4553 3-Digit BCD Counter


CD4553 belongs to the 4000 Series CMOS Logic Family of Integrated Circuits (IC’s) constructed with N- and P-channel enhancement mode transistors. CD4553 has a 3-Digit BCD Counter

CD4553 has a supply voltage range of 5V to 20V, which is much higher than any contemporary logic family. It has buffered output which improves transfer characteristics by providing very high gain. All inputs are protected against static discharge with diodes to VDD and VSS.

CD4553 Features

  • TTL Compatible Outputs
  • On-Chip Oscillator
  • Cascadable
  • Clock Disable Input
  • Pulse Shaping Permits Very Slow Rise Times on Input Clock
  • Output Latches
  • Master Reset

CD4553 Specifications

Absolute Maximum Ratings

  • DC Supply Voltage Range, (VDD): -0.5V to +18V (Voltage Referenced to VSS Terminals)
  • Input Voltage Range, All Inputs: -0.5V to VDD +0.5V
  • DC Input Current, Any One Input: ±10mA
  • Storage Temperature Range (TSTG): -65oC to +150oC
  • Lead Temperature (During Soldering): +260oC
    • At Distance 1/16 ± 1/32 Inch (1.59mm ± 0.79mm) from case for 10s Maximum

CD4553 Pinout Diagram

CD4553 Pin Description

Pin NoPin NameDescription
1DS2′Invert Disable Pin 3
2DS1′ Invert Disable Pin 2
3CI(B)Clock Input A
4CIA Clock Input B
5Q3Output Pin 4
6Q2 Output Pin 3
7Q1 Output Pin 2
8VSSSupply Voltage
9Q0 Output Pin 1
10LELatch Enable Pin
11DISDisable Pin 1
12CLKClock Pin
13MRMaster Reset
14O.FOscillator Frequency
15DS3′ Invert Disable Pin 4
16VDDDrain Voltage

CD4553 Circuit


  • Counters
  • Clock displays
  • Digital panel meters

CD4553 Alternative Equivalent

CD4518, CD4520

Download CD4553 3-Digit BCD Counter Datasheet from the link given below.