Figure 25. Z51F3220 Development Board, #2 Of 2 - ZiLOG Z8051 Series User Manual

VCC_5V
D5 D5 R18 R18
1 2
GREEN GREEN 470 470
L1 L1
FERRITE BEAD FERRITE BEAD
P1 P1
6 1
SH1 VBUS
7 2
SH2 DM
8 3
SH3 DP
9 4
SH4 ID
10 5
h1 GND
11
C13 C13
h2
0.01uF 0.01uF
USB, mini B USB, mini B
UM024303-0312
J10 J10
C6 C6 C7 C7
4.7uF 4.7uF 0.1uF 0.1uF
U7 U7
4 1
VCCIO TXD
20 5
VCC RXD
3
RTS
16
USBDM
11
CTS
15
USBDP
2
DTR
8 9
R26 R26
NC1 DSR
19 10
RESET DCD
24 6
100K 100K NC RI
27 23
OSCI CBUS0
28 22
OSCO CBUS1
13
CBUS2
17
3v3 OUT
14
CBUS3
C14 C14 12
CBUS4
0.1uF 0.1uF
FT232RL FT232RL

Figure 25. Z51F3220 Development Board, #2 of 2

U5 U5
3 4
IN OUT
C8 C8 1 5
EN ADJ
R19 R19 1uF 1uF 2
GND
20K 20K 6
BYP
7
Center Pad
C12 C12
MIC5318 MIC5318
VCC_T 0.01uF 0.01uF
R23 R23
4.75K 4.75K
J15 J15
PWR_EN-
SERIAL USB
1-2, 3-4 UART0
5-6, 7-8 UART 1
J16 J16
RxD0
1 2 RxD0
TxD0
TxD0
3 4
RxD1
5 6 RxD1
TxD1
7 8 TxD1
HDR/PIN 2x4 HDR/PIN 2x4
Z51F3220 Development Kit
U6 U6
5 1
IN OUT
C9 C9
2
R20 R20 R21 R21
GND
1uF 1uF 1.5K 1.5K 20K 20K
4 3
EN OC
TPS2051B TPS2051B
R22 R22
VCC_5V
20K 20K
R24 R24
2
D6 D6
2 1
RED RED
470 470
R25 R25
4.7K 4.7K
Schematic Diagrams
User Manual
30
J11 J11 J12 J12
VCC_T
VCC_T
C10 C10 C11 C11
4.7uF 4.7uF 0.1uF 0.1uF
J13 J13 J14 J14