IC M74HC165

Description
The M74HC165 is a high speed CMOS 8-bit
PISO (parallel-in-serial-out) shift register
fabricated with silicon gate C2MOS technology.
This device contains eight clocked master slave
RS flip-flops connected as a shift register, with
auxiliary gating to provide overriding
asynchronous parallel entry. The parallel data
enter when the shift/load input is low and can
change while shift/load is low, provided that the
recommended set-up and hold times are
observed. For clocked operation, shift/load must
be high. The two clock inputs perform identically:
one can be used as a clock inhibit by applying a
high signal, to allow this operation clocking is
accomplished through a 2-input nor gate. To avoid
double clocking, however, the inhibit signal should
only go high while the clock is high. Otherwise the
rising inhibit signal causes the same response as
rising clock edge. All inputs are equipped with
protection circuits against static discharge and
transient excess voltage.

High speed:
tPD = 15 ns (typ.) at VCC = 6 V
Low power dissipation:
ICC = 4

IC M74HC165
M74HC165B1R DIP-16
M74HC165RM13TR SO-16
M74HC165TTR TSSOP-16
8-bit PISO shift register