4 Pin Configuration and Functions

Figure 4-1 SN55173: J Package
SN75173: D, N or NS Package
(Top View)

Table 4-1 Pin Functions

PIN		TYPE#GUID-7F00692C-225F-4D58-A4BA-958F982E3A4E	DESCRIPTION
NAME	NO.	TYPE#GUID-7F00692C-225F-4D58-A4BA-958F982E3A4E	DESCRIPTION
1B	1	I	Channel 1 Differential Receiver Inverting Input
1A	2	I	Channel 1 Differential Receiver Non-Inverting Input
1Y	3	O	Channel 1 Single Ended Output
G	4	I	Active High Enable
2Y	5	O	Channel 2 Single Ended Output
2A	6	I	Channel 2 Differential Receiver Non-Inverting Input
2B	7	I	Channel 2 Differential Receiver Inverting Input
GND	8	GND	Device GND
3B	9	I	Channel 3 Differential Receiver Inverting Input
3A	10	I	Channel 3 Differential Receiver Non-Inverting Input
3Y	11	O	Channel 3 Single Ended Output
G	12	I	Active Low Enable
4Y	13	O	Channel 4 Single Ended Output
4A	14	I	Channel 4 Differential Receiver Non-Inverting Input
4B	15	I	Channel 4 Differential Receiver Inverting Input
V_CC	16	PWR	Device V_CC (4.75 V to 5.25 V)

Figure 4-2 SN55173: FK Package
(Top View)

A. The SN55173 FK package is not recommended for new designs.

Table 4-2 Pin Functions

PIN		TYPE⁽¹⁾	DESCRIPTION
NAME	NO.	TYPE⁽¹⁾	DESCRIPTION
NC	1, 6, 11, 16	--	No Connect
1B	2	I	Differential Receiver Inverting Input
1A	3	I	Differential Receiver Non-Inverting Input
1Y	4	O	Single Ended Output
G	5	I	Active High Enable
2Y	7	O	Single Ended Output
2A	8	I	Differential Receiver Non-Inverting Input
2B	9	I	Differential Receiver Inverting Input
GND	10	GND	Device GND
3B	12	I	Differential Receiver Inverting Input
3A	13	I	Differential Receiver Non-Inverting Input
3Y	14	O	Single Ended Output
G	15	I	Active Low Enable
4Y	17	O	Single Ended Output
4A	18	I	Differential Receiver Non-Inverting Input
4B	19	I	Receiver Inverting Input
V_CC	20	PWR	Device VCC

(1) Signal Types: I = Input, O = Output, I/O = Input or Output.