Description
The ELM711 is a sequencing circuit that is typically used to control strings of LEDs for use on Christmas trees, or to attract attention on signs.
Features
- One button controls both power and patterns.
- Circuit remembers settings with power off.
- 16 different patterns.
- Debounced control switch input.
- Wide supply range.
- 1.8 to 5.5 volts.
- High current drive outputs.
- Low power CMOS design
Connection Diagram PDIP and SOIC (top view)
VDD 1 LED4 2 LED5 3
PB 4
8 VSS 7 LED3 6 LED2 5 LED1
Block Diagram
PB 4
power control
VDD switch
debounce
EEPROM memory
pattern selector
pattern ge.
ELM711 Datasheet
