CD4543 logic chip
The CD4543 is a BCD to 7-segment latch/decoder/driver IC. It is designed to convert binary-coded decimal (BCD) input data into outputs that drive a 7-segment display. The IC includes latches that hold the BCD data and decode it into signals that drive a 7-segment display directly.
Key Features:
- BCD to 7-segment decoder/driver
- Latch for holding BCD input data
- Directly drives common-cathode 7-segment displays
- CMOS technology for low power consumption
- Wide supply voltage range: typically operates from 3V to 15V
- High noise immunity
- Direct compatibility with TTL and CMOS logic levels
- Logic Family: CMOS
- Number of Outputs: 7 (for driving a 7-segment display)
- Supply Voltage Range: 3V to 15V
- Typical Operating Frequency: Up to 5 MHz at V_DD = 10V
- Power Dissipation: 500 mW (max)
- Input Voltage (V_IH): 0.7 V_DD min, 0.3 V_DD max
- Output Voltage (V_OH): V_DD - 0.05V min
- Digital panel meters
- Clocks and timers with 7-segment displays
- Counters and frequency displays