3 Pin Configuration and Functions

Figure 3-1 CD54ACT05 J Package, 14-Pin CDIP; CD74ACT05 D, N, or PW Package; 14-Pin SOIC, PDIP, or TSSOP (Top View)

Figure 3-2 CD74ACT05 BQA Package, 14-Pin WQFN

Table 3-1 Pin Functions

	PIN		I/O⁽¹⁾	DESCRIPTION
NAME	CD74ACT05	CD54ACT05
NAME	BQA, D, N, PW	J
1A	1	1	I	1A Input
1Y	2	2	O	1Y Output
2A	3	3	I	2A Input
2Y	4	4	O	2Y Output
3A	5	5	I	3A Input
3Y	6	6	O	3Y Output
GND	7	7	—	Ground Pin
4Y	8	8	O	4Y Output
4A	9	9	I	4A Input
5Y	10	10	I	5Y Output
5A	11	11	I	5A Input
6Y	12	12	O	6Y Output
6A	13	13	I	6A Input
V_CC	14	14	—	Power Pin
NC	—	—	—	No Connection
Thermal pad			—	Connect the GND pin to the exposed thermal pad for correct operation. Connect the thermal pad to any internal PCB ground plane using multiple vias for good thermal performance.

(1) I = input, O = output, P = power, FB = feedback, GND = ground, N/A = not applicable