Cypress CY8C24223A, CY8C24423A manual Pin Part Pinout Ssop Type Description Digi- Ana Name

CY8C24223A, CY8C24423A

28-Pin Part Pinout

Table 4. 28-Pin Part Pinout (SSOP)

Pi	Type
n		Pin	Description
	Digi- Ana-
No		Name

Figure 6. CY8C24423A 28-Pin PSoC Device

.	tal	log
1	IO	I	P0[7]	Analog column mux input
2	IO	IO	P0[5]	Analog column mux input and column
				output
3	IO	IO	P0[3]	Analog column mux input and column
				output
4	IO	I	P0[1]	Analog column mux input
5	IO		P2[7]
6	IO		P2[5]
7	IO	I	P2[3]	Direct switched capacitor block input
8	IO	I	P2[1]	Direct switched capacitor block input
9	Power		Vss	Ground connection
10	IO		P1[7]	I2C Serial Clock (SCL)
11	IO		P1[5]	I2C Serial Data (SDA)
12	IO		P1[3]
13	IO		P1[1]	Crystal Input (XTALin), I2C Serial Clock
				(SCL), ISSP-SCLK*
14	Power		Vss	Ground connection
15	IO		P1[0]	Crystal Output (XTALout), I2C Serial Data
				(SDA), ISSP-SDATA*
16	IO		P1[2]
17	IO		P1[4]	Optional External Clock Input (EXTCLK)
18	IO		P1[6]
19	Input		XRES	Active high external reset with internal pull
				down
20	IO	I	P2[0]	Direct switched capacitor block input
21	IO	I	P2[2]	Direct switched capacitor block input
22	IO		P2[4]	External Analog Ground (AGND)
23	IO		P2[6]	External Voltage Reference (VRef)
24	IO	I	P0[0]	Analog column mux input
25	IO	I	P0[2]	Analog column mux input
26	IO	I	P0[4]	Analog column mux input
27	IO	I	P0[6]	Analog column mux input
28	Power		Vdd	Supply voltage

LEGEND: A = Analog, I = Input, and O = Output.

* These are the ISSP pins, which are not High Z at POR (Power On Reset).

See the PSoC Programmable System-on-Chip Technical Reference Manual for details.

A, I,P0[7]

A,IO, P0[5]

A,IO, P0[3]

A,I, P0[1] P2[7] P2[5] A,I, P2[3]

A, I,P2[1] Vss I2CSCL,P1[7] I2CSDA,P1[5] P1[3]

I2CSCL,XTALin,P1[1] Vss

1		28	Vdd
2		27	P0[6], A,I
3		26	P0[4], A,I
4		25	P0[2], A,I
5		24	P0[0], A,I
6		23	P2[6],ExternalVRef
7	SSOP	22	P2[4],ExternalAGND
8		21	P2[2], A,I
9		20	P2[0], A,I
10		19	XRES
11		18	P1[6]
12		17	P1[4],EXTCLK
13		16	P1[2]
14		15	P1[0],XTALout,I2CSDA

Document Number: 3-12029 Rev. *E Page 9 of 31

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