View mc74hc299 datasheet:

MOTOROLA SEMICONDUCTOR TECHNICAL DATA MC74HC299 8-Bit Bidirectional Universal Shift Register with Parallel I/O High–Performance Silicon–Gate CMOS N SUFFIX PLASTIC PACKAGE The MC74HC299 is identical in pinout to the LS299. The device inputs are 20 CASE 738–03 compatible with standard CMOS outputs; with pullup resistors, they are 1 compatible with LSTTL outputs. The HC299 features a multiplexed parallel input/output data port to DW SUFFIX achieve full 8–bit handling in a 20 pin package. Due to the large output drive 20 SOIC PACKAGE 1 capability and the 3–state feature, this device is ideally suited for interface CASE 751D–04 with bus lines in a bus–oriented system. Two Mode–Select inputs and two Output Enable inputs are used to ORDERING INFORMATION choose the mode of o