Run a horse-light chip program, slow flash button change, ic flash, ic program development

Eh211115-172a-af8e led running flash ic chip
I. Functional description
Power supply: dc4. 5v (aa*3 dry batteries). Key input control, three-way led output。
The power is not working, pressing buttons three-way led fast-run, pressing medium-speed flashes, pressing slow-run flashes, pressing short-strings, closings, then recycles. (frequency reference samples)
Ii. Electrical parameters (vdd = 5. 0 v ta = 25°c)
Parameters symbol minimum typical maximum unit conditions
Working voltage vdd 2. 4 3. 0 5. 0 v
Work current iop 3 ma fcpu = 2 mhz@xtal-4m
Static current isb 10 ua vdd = 5v, wdt on, lvr off
Iol 30 ma vol=0. 6v
Working temperature ta-10 25 70 °c
Storage temperature tstg - 20 25 100 °c