4 Pin Configuration and Functions

NC – No internal connection

Figure 4-1 SN65ALS180 D Package
SN75ALS180 D or N Package
(Top View)

Table 4-1 Pin Functions

NO	Name	Type	Description
1	NC	-	No Internal connection
2	R	O	Receive data output
3	RE	I	Receiver enable, active low
4	DE	I	Driver enable, active high
5	D	I	Driver data input
6, 7	GND	GND	Device ground
8	NC	-	No Internal connection
9	Y	O	Digital bus output, Y (Complementary to Z)
10	Z	O	Digital bus output, Z (Complementary to Y)
11	A	I	Bus input, A (complementary to B)
12	B	I	Bus input, B (complementary to A)
13, 14	V_CC	SUPPLY	4.75V to 5.25V supply