BUY CD4040BF3A https://www.utsource.net/itm/p/326048.html
CMOS RIPPLE-CARRY BINARY COUNTER DIVIDERS
Description: The CD4040BF3A is a 12-stage ripple carry binary counter/divider and oscillator manufactured by Texas Instruments. Features: - High speed operation - Low power consumption - Outputs source/sink 24mA - TTL compatible - Available in 16-pin DIP package Applications: - Frequency division - Clock and timing applications - Pulse generation - Data transmission and reception - Pulse width modulation (For reference only)