CY7C68013A/CY7C68014A
CY7C68015A/CY7C68016A
[10]
Table 4-1. FX2LP Pin Descriptions (continued)
128 100 56 56
TQFP TQFP SSOP QFN
Name
Type
Default
Description
51
50
41
40
RXD0
Input
N/A
RXD0 is the active-HIGH RXD0 input to 8051 UART0,
which provides data to the UART in all modes.
TXD0
Output
H
TXD0 is the active-HIGH TXD0 output from 8051
UART0, which provides the output clock in sync mode,
and the output data in async mode.
42
41
CS#
Output
Output
H
H
CS# is the active-LOW chip select for external memory.
32
31
WR#
WR# is the active-LOW write strobe output for external
memory.
40
38
RD#
OE#
Output
Output
H
H
RD# is the active-LOW read strobe output for external
memory.
OE# is the active-LOW output enable for external
memory.
33
27
79
21
51
14 Reserved
44 WAKEUP
Input
Input
N/A
N/A
Reserved. Connect to ground.
101
USB Wakeup. If the 8051 is in suspend, asserting this
pin starts up the oscillator and interrupts the 8051 to
allow it to exit the suspend mode. Holding WAKEUP
asserted inhibits the EZ-USB chip from suspending.
This pin has programmable polarity (WAKEUP.4).
2
36
37
29
30
22
23
15 SCL
16 SDA
OD
OD
Z
Z
Clock for the I C interface. Connect to VCC with a 2.2K
2
resistor, even if no I C peripheral is attached.
2
Data for I C-compatible interface. Connect to VCC
with a 2.2K resistor, even if no I C-compatible
2
peripheral is attached.
2
26
1
6
55 VCC
11 VCC
17 VCC
VCC
Power
Power
Power
Power
Power
Power
Power
Power
Power
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
VCC. Connect to 3.3V power source.
VCC. Connect to 3.3V power source.
VCC. Connect to 3.3V power source.
VCC. Connect to 3.3V power source.
VCC. Connect to 3.3V power source.
VCC. Connect to 3.3V power source.
VCC. Connect to 3.3V power source.
VCC. Connect to 3.3V power source.
VCC. Connect to 3.3V power source.
20
33
38
49
53
66
78
85
18
24
43
48
64
34
27 VCC
VCC
68
81
39
50
32 VCC
43 VCC
VCC
100
107
3
27
2
7
56 GND
12 GND
GND
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Ground.
Ground.
Ground.
Ground.
Ground.
Ground.
Ground.
Ground.
Ground.
21
39
48
50
65
75
94
99
19
49
58
33
35
26 GND
28 GND
GND
65
80
93
48
4
41 GND
GND
116
125
53 GND
14
15
16
13
14
15
NC
NC
NC
N/A
N/A
N/A
N/A
N/A
N/A
No Connect. This pin must be left open.
No Connect. This pin must be left open.
No Connect. This pin must be left open.
Document #: 38-08032 Rev. *G
Page 27 of 55
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