4045 - 21-stage counter

pinout

1 SP 16 PH1 2 SN 15 PH0 3 GND 14 VCC 4 N.C. 13 N.C. 5 N.C. 12 N.C. 6 N.C. 11 N.C. 7 Y 10 N.C. 8 Y+D 9 N.C. 4045 www.nanobob.com

symbol

1 SP 8 Y+D 16 PH1 15 PH0 2 SN 7 Y

pin types

0 digital input 0 digital output 0 digital input-output (bidir) 0 analog (input or output) 0 positive power 0 ground 0 negative power