74HC595 - 8-Bit Shift Registers With 3-State Output Registers

QB 1 16 VCC
QC 2 15 QA
QD 3 14 SER
QE 4 13 OE
QF 5 12 RCLK
QG 6 11 SRCLK
QH 7 10 SRCLR
GND 8 9 QH'
VCC
Positive voltage (commonly 5V or 3.3V)
GND
Ground
QAQH
Shift register output after latch
QH'
Shift register output of the last bit, before latching. Used to daisy-chain to SER input of next shift register
OE
Output enable
SER
Serial input data
SRCLK
Serial input clock
RCLK
Serial input clock
SRCLR
Shift register clear