M74HC4543 is a high speed CMOS BCD-TO-7 SEGMENT DECODER WITH LCD DRIVER. It features high speed, low power dissipation, high noise immunity, symmetrical output impedance, balanced propagation delays and wide operating voltage range. The device consists of BCD-TO-7 segment decoder with a BCD input latch and a 7-segment driver for a liquid crystal display (LCD). When any illegal BCD input signal is applied or input BI is held high, the display is blanked. When driving LCDs, a common square wave signal should be applied not only to the PH input of this device but also to the electrically common backplane of the display. For other types of readouts, such as light-emitting diode (LED), some additional drivers, such as a transistor array is required. All inputs are equipped with protection circuits against static discharge and transient excess voltage.
The M74HC4543 is a high-speed CMOS BCD-to-7 segment decoder with a BCD input latch and a 7-segment driver for liquid crystal displays (LCDs). Fabricated with silicon gate C2MOS technology, it features a wide operating voltage range from 2V to 6V and is pin and function compatible with the 74 series 4543. The device includes protection circuits against static discharge and transient excess voltage on all inputs.
| Operating Voltage Range | 2V to 6V |
|---|---|
| Supply Voltage (Max) | +7 V |
| Operating Temperature Range | -55 to 125 °C |
| Power Dissipation | 500 mW |
| Storage Temperature | -65 to +150 °C |
| Output Current (Max) | +25 mA |
It is fabricated with silicon gate C2MOS technology.
Yes, it is pin and function compatible with the 74 series 4543.