AKD4955-A Datasheet, PDF (74/89 Pages) Asahi Kasei Microsystems – AK4955 Evaluation Board Rev.3

A
B
C
D
E
E
C54 2.2u
R39 4.7k
PORT4
10
9 CSN
8
7 CCLK/SCL
6
5 CDTI/SDA
4
3 CDTO/SDA(ACK)
2
1
10pin-CTRL
D
C59 1u
SILK-SCREEN(P1)
1:VDD
2:MCLR
3:PGD
4:PGC
C 5:GND
JP29
1
2
3
4
5
PIC
U10
B
VUSB
D-
D+
GND
1
2
3
4
USB(B type)
TP48
RD1
TP50
RD3
TP52
RD5
TP54
RD7
TP47
RD0
TP49
RD2
TP51
RD4
TP53
RD6
R54 0
R55 0
VSS2
C55
10u
VSS2
C57
0.1u
C56
10u
C58
0.1u
17
16
15
14
11
10
9
8
RB7/KBI3/PGD
RB6/KBI2/PGC
RB5/KBI1/PGM
RB4/AN11/KBI0/CSSPP
RB3/AN9/CPP2/VPO
RB2/AN8/INT2/VMO
RB1/AN10/INT1/SCK/SCL
RB0/AN12/INT0/FLT0/SDI/SDA
MCLR_N/Vpp/RE3 ^{18 USB-RST}
NC/ICCK/ICPGC
NC/ICDT/ICPGD
NC/ICRST_N/ICVpp
NC/ICPORTS
12
13
33
34
C60
0.1u
R47
100k
JP28
USB
USB
USB
USB
CTRL-SEL
10pin
CSN
10pin
CCLK/SCL
10pin
CDTI/SDA
10pin
CDTO/SDA(ACK)
38
39
40
41
2
3
4
5
RD0/SPP0
PIC18F4550
OSC1/CLKI
OSC2/CLKO/RA6
RD1/SPP1 _{TQFP 44-PIN}
RD2/SPP2
RD3/SPP3
RE0/AN5/CK1SPP
RD4/SPP4
RD5/SPP5/P1B
RD6/SPP6/P1C
U9
RE1/AN6/CK2SPP
RE2/AN7/OESPP
RD7/SPP7/P1D
VUSB
30
31
25
26
27
37
XTI
XTO
C63 22p
X2
20MHz
C64 22p
C65 470n
32
35
36
42
43
44
1
RC0/T1OSO/T13CKI
RC1/T1OSI/CCP2/UOE_N
RC2/CCP1/P1A
RA0/AN0
RA1/AN1
RA2/AN2/Vref-/CVref
RA3/AN3/Vref+
RC4/D-/VM
RA4/T0CKI/C1OUT/RCV
RC5/D+/VP
RA5/AN4/SS_N/HLVDIN/C2OUT
RC6/TX/CK
RC7/RX/DT/SDO
19
20
21
22
23
24
R51 51 CSN
R50 51 CCLK/SCL
R52 51 CDTI/SDA
R53 51 CDTO/SDA(ACK)
PIC18F4550
E
D3V
R44 470
R45 470
R46 470
D3V
U8
4 _1A1
5 _1A2
2 _1DIR
6 _2A1
7 _2A2
3 _2DIR
1
C61
0.1u
8
VCCA
GND
1B1 ¹³
1B2 ¹²
1OE ¹⁵
2B1 ¹¹
2B2 ¹⁰
2OE ¹⁴
VCCB ¹⁶
GND ⁹
C62
0.1u
74AVC4T245
LVC
D3V
LVC
U11
1
3
5
9
11
13
1A
2A
3A
4A
5A
6A
1Y
2Y
3Y
4Y
5Y
6Y
2
4
6
8
10
12
14 _Vcc
C66
0.1u 7 _GND
74LVC07
R48 1k
R49 100
CSN
D
CCLK/SCL
CDTIO/SDA
C
B
A
A
- 74 -
B
C
A
Title
AKD4955-A
Size Document Number
A3
uP-I/F
Rev
13
Date:
Monday, November 29, 2010 Sheet 5 of 6
D
E