2 Pin Descriptions

The descriptions of the pins are listed in Table 2-1.

Table 2-1. Pin Function Table
Name	32-Lead PLCC	28-Lead SOIC	Function
DC	1	—	Don’t Connect
NC	2	1	No Connect
A12	3	2	Address
A7	4	3	Address
A6	5	4	Address
A5	6	5	Address
A4	7	6	Address
A3	8	7	Address
A2	9	8	Address
A1	10	9	Address
A0	11	10	Address
NC	12	—	No Connect
I/O0	13	11	Data Input/Output
I/O1	14	12	Data Input/Output
I/O2	15	13	Data Input/Output
GND	16	14	Ground
DC	17	—	Don’t Connect
I/O3	18	15	Data Input/Output
I/O4	19	16	Data Input/Output
I/O5	20	17	Data Input/Output
I/O6	21	18	Data Input/Output
I/O7	22	19	Data Input/Output
CE	23	20	Chip Enable
A10	24	21	Address
OE	25	22	Output Enable
NC	26	—	No Connect
A11	27	23	Address
A9	28	24	Address
A8	29	25	Address
NC	30	26	No Connect
WE	31	27	Write Enable
V_CC	32	28	Device Power Supply