4 Pin Configuration and Functions

SN54AHC00 SN74AHC00 SN54AHC00 J or W Package,
14-Pin CDIP or CFP (Top View); SN74AHC00 D,
DB, DGV, N, NS, or PW Package, 14-Pin SOIC, SSOP, TVSOP, PDIP, SOP, or TSSOP
(Top View)

Figure 4-1 SN54AHC00 J or W Package, 14-Pin CDIP or CFP (Top View);
SN74AHC00 D, DB, DGV, N, NS, or PW Package, 14-Pin SOIC, SSOP, TVSOP, PDIP, SOP, or TSSOP (Top View)

SN54AHC00 SN74AHC00 SN54AHC00 FK Package,
20-Pin LCCC (Top View)

Figure 4-3 SN54AHC00 FK Package, 20-Pin LCCC (Top View)

SN54AHC00 SN74AHC00 SN74AHC00 RGY or BQA
Package, 14-Pin VQFN or WQFN (Top View)

Figure 4-2 SN74AHC00 RGY or BQA Package, 14-Pin VQFN or WQFN (Top View)

Table 4-1 Pin Functions

PIN				TYPE⁽¹⁾	DESCRIPTION
NAME	SN74AHC00	SN54AHC00
NAME	D, DB, DGV, N, NS, PW, RGY, BQA	J, W	FK
1A	1	1	2	I	1A Input
1B	2	2	3	I	1B Input
1Y	3	3	4	O	1Y Output
2A	4	4	6	I	2A Input
2B	5	5	8	I	2B Input
2Y	6	6	9	O	2Y Output
GND	7	7	10	—	Ground Pin
3A	8	8	13	I	3A Input
3B	9	9	14	I	3B Input
3Y	10	10	12	O	3Y Output
4A	11	11	18	I	4A Input
4B	12	12	19	I	4B Input
4Y	13	13	16	O	4Y Output
V_CC	14	14	20	—	Power Pin
NC	—	—	1, 5, 7, 11, 15, 17	—	No Connection

(1) I = input, O = output