Description
Positive power, the persistent current is no less than 100mA Public ground, the persistent current is no less than 100mA Segment drive of numeric LEDs, high-level active, keyboard scan input, high-level active, with pull-down resistor Word drive of numeric LEDs, low-level active, keyboard scan outpu
Features
- Set display current drive layer internal, the segment current is no less than 15mA, the word current is no less than 80mA.
- Dynamically display scan control, directly drive six bits numeric LEDs or forty eight LEDs.
- Set forty eight keys keyboard controller internal, basic on 8×6 matrix keyboard scan.
- Set pull-down resistor internal on the key pressed station, and set eliminate dithering circuit internal.
- Supplies keyboard interrupt active with low-level, supplies key.
CH450 Datasheet
