Cypress Semiconductor Perform CY8C24x94 Specifications download pdf (Page 12)

CY8C24123A

CY8C24223A

CY8C24423A

Document Number: 38-12028 Rev. *V Page 12 of 71

28-Pin Part Pinout

Table 4. 28-Pin PDIP, SSOP, and SOIC

No.

Type

Name

Description

Figure 6. CY8C24423A 28-Pin PSoC Device

Digital Analog

1 I/O I P0[7] Analog column mux input

2 I/O I/O P0[5] Analog column mux input and column output

3 I/O I/O P0[3] Analog column mux input and column output

4 I/O I P0[1] Analog column mux input

5 I/O P2[7]

6 I/O P2[5]

7 I/O I P2[3] Direct switched capacitor block input

8 I/O I P2[1] Direct switched capacitor block input

9 Power SMP SMP connection to external components

required

10 I/O P1[7] I

C SCL

11 I/O P1[5] I

C SDA

12 I/O P1[3]

13 I/O P1[1] XTALin, I

C SCL, ISSP-SCLK

[6]

14 Power V

Ground connection.

15 I/O P1[0] XTALout, I

C SDA, ISSP-SDATA

[6]

16 I/O P1[2]

17 I/O P1[4] Optional EXTCLK

18 I/O P1[6]

19 Input XRES Active high external reset with internal

pull-down

20 I/O I P2[0] Direct switched capacitor block input

21 I/O I P2[2] Direct switched capacitor block input

22 I/O P2[4] External analog ground (AGND)

23 I/O P2[6] External voltage reference (V

REF

)

24 I/O I P0[0] Analog column mux input

25 I/O I P0[2] Analog column mux input

26 I/O I P0[4] Analog column mux input

27 I/O I P0[6] Analog column mux input

28 Power V

Supply voltage

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

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]

SMP

I2CSCL, P1[7]

I2C SDA, P1[5]

P1[3]

I2C SCL, XTALin, P1[1]

P0[6], A, I

P0[4], A, I

P0[2], A, I

P0[0], A, I

P2[6], External VRef

P2[4], External AGND

P2[2], A, I

P2[0], A, I

XRES

P1[6]

P1[4], EXTCLK

P1[2]

P1[0], XTALout, I2C SDA

PDIP

SSOP

SOIC

Note

6. These are the ISSP pins, which are not high Z at POR. See the PSoC Technical Reference Manual for details.

Not for Production

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 70 71

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