Features
• Power CMOS technology
• Display mode: 7 segments X 4 digits; supports common-anode LED output
• Key scanning: 7 X 1 matrix; enhanced anti-interference key detection circuit
• Brightness adjustment circuit (8-level adjustable duty cycle)
• Serial interface (CLK, DIO)
• Oscillation mode: Built-in RC oscillator (450 kHz ± 5%)
• Built-in power-on reset circuit
• Built-in automatic blanking circuit
• Package types: DIP16/SOP16