View mc74hc280 datasheet:

MOTOROLA SEMICONDUCTOR TECHNICAL DATA MC74HC280 9-Bit Odd/Even Parity Generator/Checker High–Performance Silicon–Gate CMOS N SUFFIX PLASTIC PACKAGE The MC74HC280 is identical in pinout to the LS280. The device inputs are 14 CASE 646–06 compatible with standard CMOS outputs; with pullup resistors, they are 1 compatible with LSTTL outputs. This circuit consists of 9 data–bit inputs (A through I) and 2 outputs (Even Parity and Odd Parity) to allow both odd and even parity applications. Words D SUFFIX greater than 9–bits can be accommodated by cascading other HC280 14 SOIC PACKAGE devices. CASE 751A–03 1 This device can be used in systems utilizing the LS180 parity generator/ checker. Although the HC280 does not have expander inputs, the ORDERING INFORMATION correspondin