Figure 33. Z51F3221 Development Board, #2 Of 2 - ZiLOG Z8051 Series User Manual

VCC_5V
D5 R16
1 2
GREEN 470
L1
FERRITE BEAD
P1
6 1
SH1 VBUS
7 2
SH2 DM
8 3
SH3 DP
9 4
SH4 ID
10 5
h1 GND
11
C14
h2
0.01uF
USB, mini B
UM025801-1112
C7 C8
4.7uF 0.1uF
U7
4 1
VCCIO TXD
20 5
VCC RXD
3
RTS
16
USBDM
11
CTS
15
USBDP
2
DTR
8 9
R24
NC1 DSR
19 10
RESET DCD
24 6
100K NC RI
27 23
OSCI CBUS0
28 22
OSCO CBUS1
13
CBUS2
17
3v3 OUT
14
CBUS3
C15 12
CBUS4
0.1uF
FT232RL

Figure 33. Z51F3221 Development Board, #2 of 2

J9
U5
3 4
IN OUT
1 5
C9
EN ADJ
2
R17 1uF
GND
20K 6
BYP
7
Center Pad
MIC5318
VCC_T
R21
4.75K
RxD
RxD
TxD
TxD
J13
PWR_EN-
Z51F3221 Development Kit
5
IN
C10
R18 R19
20K
1uF 1.5K
4
EN
C13
0.01uF R20
VCC_5V
20K
2 R22
470
R23
4.7K
User Manual
39
J10
VCC_T
U6
1 VCC_T
OUT
C11 C12
2
GND
4.7uF 0.1uF
3
OC
TPS2051B
D6
2 1
RED
J11 J12
Schematic Diagrams