6 Pin Configuration and Functions

Figure 6-1 DBQ, DW, or PW Package, 24-Pin SSOP, SOIC, and TSSOP (Top View)

Table 6-1 Pin Functions

PIN		TYPE⁽¹⁾	DESCRIPTION
NAME	NO.	TYPE⁽¹⁾	DESCRIPTION
BE	1	I	Active-low input enable pin
1B1	2	I/O	I/O pin, can be input or output
1A1	3	I/O	I/O pin, can be input or output
1A2	4	I/O	I/O pin, can be input or output
1B2	5	I/O	I/O pin, can be input or output
2B1	6	I/O	I/O pin, can be input or output
2A1	7	I/O	I/O pin, can be input or output
2A2	8	I/O	I/O pin, can be input or output
2B2	9	I/O	I/O pin, can be input or output
3B1	10	I/O	I/O pin, can be input or output
3A1	11	I/O	I/O pin, can be input or output
GND	12	G	Ground
BX	13	I	Select pin. This controls the data path of the bus exchange. When BX is low xA1 = xB1 and xA2 port = xB2. When BX is high xA1 = xB2 and xA2 = xB1
3A2	14	I/O	I/O pin, can be input or output
3B2	15	I/O	I/O pin, can be input or output
4B1	16	I/O	I/O pin, can be input or output
4A1	17	I/O	I/O pin, can be input or output
4A2	18	I/O	I/O pin, can be input or output
4B2	19	I/O	I/O pin, can be input or output
5B1	20	I/O	I/O pin, can be input or output
5A1	21	I/O	I/O pin, can be input or output
5A2	22	I/O	I/O pin, can be input or output
5B2	23	I/O	I/O pin, can be input or output
V_CC	24	P	Power pin

(1) I = Input, O = Output, I/O = Input or Output, G = Ground, P = Power.