used 74LS595 chips as our SIPO shift registers and 74LS597 chips for PISO.|
used 74LS595 chips as our SIPO shift registers and 74LS597 chips for PISO. LS series chips are obsoltete.|
We recommend using a current set of chips, such as the 74HCT595 and 74HCT597 or equivalent.
inverting the RCLK signal.|
inverting the RCLK signal with an inverter, like the 7404.|
Pin names on the chips may be different than as shown. On a current datasheet I see the following names:
STCP = Storage Register Clock, I referred to as 'Latch', formerly 'RCLK'
SHCP = Shift register clock, formerly 'SRClock'
DS = Serial data Input, formerly 'Ser'
PL = Parallel Load, formerly 'SRLoad'
Other pins such as Output Enable and Reset should be tied high or low as appropriate.