CY8C27 Datasheet, PDF (23/332 Pages) –

CY8C27xxx Preliminary Data Sheet
1 Pin Information
Table 1-4. 28-Pin Part Pinout (PDIP, SSOP)
Pin
No.
Description
Pin
No.
Description
1 P0[7] A in
11 _{P1[5] I}2_{C SDA}
2 P0[5] A in, out
12 P1[3]
3 P0[3] A in, out
13 P1[1] XTALin, I2C SCL, TC SCLK
4 P0[1] A in
14 Vss
5 P2[7]
15 P1[0] XTALout, I2C SDA, TC SDATA
6 P2[5]
16 P1[2]
7 P2[3] A in (ASC10)
17 P1[4] EXTCLK
8 P2[1] A in (ASD20)
18 P1[6]
9 SMP
19 XRES
10 _{P1[7] I}2_{C SCL}
20 P2[0] A in (ASC23)
LEGEND A: analog, D: digital, IO: input or output.
Pin
No.
Description
21 P2[2] A in (ASD13)
22 P2[4] A in (AGND)
23 P2[6] A in (Ref)
24 P0[0] A in
25 P0[2] A in, out
26 P0[4] A in, out
27 P0[6] A in
28 Vcc
AI, P0[7]
1
AIO, P0[5]
2
AIO, P0[3]
3
AI, P0[1]
4
P2[7]
5
P2[5]
6
AI (ASC10), P2[3]
7
AI (ASD20), P2[1]
8
SMP
9
I²C SCL, P1[7]
10
I²C SDA, P1[5]
11
P1[3]
12
TC SCLK, I²C SCL, XTALin, P1[1]
13
Vss
14
28
Vcc
27
P0[6], AI
26
P0[4], AIO
25
P0[2], AIO
24
P0[0], AI
23
P2[6], AI (Ref)
22
P2[4], AI (AGND)
21
P2[2], AI (ASD13)
20
P2[0], AI (ASC23)
19
XRES
18
P1[6]
17
P1[4] EXTCLK
16
P1[2]
15
P1[0], XTALout, I²C SDA, TC SDATA
June 2, 2003
Document #: 38-12012 Rev. **
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