Cypress CY7C68023 Manual Do Utilizador
CY7C68023/CY7C68024
Document #: 38-08055 Rev. *B
Page 2 of 9
3.0
Pin Assignments
3.1
Pin Diagram
Figure 3-1. 56-pin QFN
3.2
Pin Descriptions
Pin
Name
Type
Default State at Start-up
Description
1
R_B1#
I
Z
Ready/Busy 1 (2.2k to 4k pull-up resistor is required)
2
R_B2#
I
Z
Ready/Busy 2 (2.2k to 4k pull-up resistor is required)
3
AVCC
PWR
PWR
Analog 3.3V supply
4
XTALOUT
Xtal
N/A
Crystal output
5
XTALIN
Xtal
N/A
Crystal input
6
AGND
GND
GND
Ground
7
AVCC
PWR
PWR
Analog 3.3V supply
8
DPLUS
I/O
Z
USB D+
9
DMINUS
I/O
Z
USB D-
10
AGND
GND
GND
Ground
11
VCC
PWR
PWR
3.3V supply
12
GND
GND
GND
Ground
13
N/C
N/A
N/A
No connect
14
GND
GND
GND
Ground
15
Reserved
N/A
N/A
Must be tied HIGH (no pull-up resistor required)
Note:
1.
A # sign after the pin name indicates that it is an active LOW signal.
RESET#
GND
N/C
N/C
WP_SW#
WP_NF#
LED2#
LED1#
ALE
CLE
VCC
RE1#
RE0#
WE#
R_B1#
R_B2#
AVCC
XTALOUT
XTALIN
AGND
AVCC
DPLUS
DMINUS
AGND
VCC
GND
N/C
GND
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Re
served
Re
served
VC
C
DD
0
DD
1
DD
2
DD
3
DD
4
DD
5
DD
6
DD
7
GND
VC
C
GND
42
41
40
39
38
37
36
35
34
33
32
31
30
29
56
55
54
53
52
51
50
49
48
47
46
45
44
43
1
2
3
4
5
6
7
8
9
10
11
12
13
14
GND
VC
C
N/
C
GND
CE
7#
CE
6#
CE
5#
CE
4#
CE
3#
CE
2#
CE
1#
CE
0#
Re
served
VC
C
EZ-USB NX2LP
56-pin QFN