The MC74HC194 is identical in pinout to the LS194 and the MC14194B metal gate CMOS device. The device inputs are compatible with standard CMOS outputs; with pull–up resistors, they are compatible with LSTTL outputs.
This static shift register features parallel load, serial load (shift right and shift left), hold, and reset modes of operation. These modes are tabulated in the Function Table, and further explanation can be found in the Pin Description section.

• Output Drive Capability: 10 LSTTL Loads
• Outputs Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 2 to 6 V
• Low Input Current: 1 µA
• High Noise Immunity Characteristic of CMOS Devices
• In Compliance with the Requirements Defined by JEDEC Standard No. 7A
• Chip Complexity 164 FETs or 41 Equivalent Gates