Cypress CY7C604XX manual Vss Supply ground No connection, Vdd Supply voltage No connection

CY7C604XX

Table 3. 48-Pin Part Pinout (QFN) (continued)

Pin No.	Type	Name	Description
18	Power	Vss	Supply ground
19	NC	NC	No connection
20	NC	NC	No connection
21	Power	Vdd	Supply voltage
22	IOHR	P1[0](3, 4)	Digital I/O, ISSP DATA, I2C SDA, SPI CLK
23	IOHR	P1[2]	Digital I/O
24	IOHR	P1[4]	Digital I/O, optional external clock input (EXTCLK)
25	IOHR	P1[6]	Digital I/O
26	XRES	Ext Reset	Active high external reset with internal pull down
27	I/O	P3[0]	Digital I/O
28	I/O	P3[2]	Digital I/O
29	I/O	P3[4]	Digital I/O
30	I/O	P3[6]	Digital I/O
31	I/O	P4[0]	Digital I/O
32	I/O	P4[2]	Digital I/O
33	I/O	P2[0]	Digital I/O
34	I/O	P2[2]	Digital I/O
35	I/O	P2[4]	Digital I/O
36	I/O	P2[6]	Digital I/O
37	IOH	P0[0]	Digital I/O
38	IOH	P0[2]	Digital I/O
39	IOH	P0[4]	Digital I/O
40	IOH	P0[6]	Digital I/O
41	Power	Vdd	Supply voltage
42	NC	NC	No connection
43	NC	NC	No connection
44	IOH	P0[7]	Digital I/O
45	IOH	P0[5]	Digital I/O
46	IOH	P0[3]	Digital I/O
47	Power	Vss	Supply ground
48	IOH	P0[1]	Digital I/O
CP	Power	Vss	Center pad must be connected to ground

LEGEND I = Input, O = Output, OH = 5 mA High Output Drive, R = Regulated Output

Document Number: 001-12395 Rev *H Page 10 of 30

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