CD4553 3-Digit BCD Counter DIP-16 (CD4553 DIP IC)
The CD4553 is a high-voltage CMOS integrated circuit that consists of three negative-edge triggered BCD counters with a common clock. It features integrated storage latches and a time-multiplexed output, allowing three digits of decimal information to be shared across a single 4-bit BCD output bus, which significantly reduces the number of pins required to drive a display.
This IC is primarily used in digital voltmeters, frequency counters, and event timers where multi-digit counting is required. It is an extremely popular component for Arduino electronics projects in India for creating compact 3-digit or 6-digit displays (by cascading) with minimal wiring to 7-segment drivers like the CD4511 or CD4543.
Key Features
- Three independent BCD counters in a single package
- Integrated 3-word by 4-bit storage latches
- Internal multiplexing of outputs for simplified display driving
- On-chip oscillator for multiplexing scan rate
- Cascadable for 6-digit or 9-digit counting systems
- High noise immunity characteristic of CMOS technology
- Wide operating supply voltage range for diverse power systems
- Low power consumption suitable for battery-operated devices
Specifications
- IC Type = 3-Digit BCD Counter
- Logic Family = CD4000
- Supply Voltage = 3V to 18V
- Package Type = DIP
- Number of Pins = 16
- Mounting Type = Through-Hole
- Clock Frequency = 2.5MHz at 5V
- Operating Temperature = -55 to 125 degrees Celsius
Interfaces
- CLK = Clock Input (Negative-Edge Triggered)
- MR = Master Reset (Active High)
- DIS = Disable Input (Count Inhibit)
- LE = Latch Enable (Active Low)
- DS1, DS2, DS3 = Digit Select Outputs (Active Low)
- Q0, Q1, Q2, Q3 = Multiplexed BCD Outputs
- CIN, COUT = Cascade Inputs/Outputs
- C1, C2 = External Capacitor for Scan Oscillator
- VSS = Ground (0V)
- VDD = Positive Supply Voltage
