7-180 Schematics, Component Location Diagrams, and Parts Lists: HUF4017A (700-800 MHz) Main Board
May 25, 2005 6881096C74-B
Figure 7-123. HUF4017A USB/RS232/SB9600 Schematic
SB9600 Block
NP
VIP I/O Block
BUFFER SUPPLY BUFFER SUPPLY
1
USB*_RS232_EN
0
Not Allowed
BOOT_DATA_EN* Mode of Operation
0
0
0
11
1
Boot Data
USB
RS232
R0304
13
11
22
1
2
4
U0300-4
MC74LCX125
12
VCC5
VCC2.85
U0308-1
NC7ST08
C0312
0.1uF
10
8
MC74LCX125
U0303-4
12
13
11
MC74LCX125
U0300-3
9
1.5K
R0303
C0309
0.1uF
U0303-2
MC74LCX125
5
4
6
VCC2.85
VIP_IN_1_3V VIP_IN_1_5V
VIP_IN_2_3V VIP_IN_2_5V
VIP_OUT_1_3V VIP_OUT_1_5V
VIP_OUT_2_3V VIP_OUT_2_5V
U0300-2
MC74LCX125
5
4
6 GND
7
VCC
14
10K
R0307
VCC2.85
PWR_GND
U0300-5
14
VBUS
7
VCC
4
VM
11
VO_VPO
3
VP
15
VPU
13
VREG
DPOS
16
ENUMERATE
12
FSE0_VMO
17
GND
MODE
6
1
OE_N
2
RCV
5
SUSPND
8
USB_DET
VCC
5
ISP1104
U0304
9
DNEG
10
VCC
5
PWR_GND
U0308-2
GND
3
VNEG
6
VPOS
2
PWR_GND
U0307-2
GND
3
R1O
12
R2I
8
R2O
9
T1I
11
T1O
14
T2I
10
T2O
7
VCC
16
U0305
ST3232
3
C1NEG
C1POS
1
5
C2NEG
4
C2POS
GND
15
R1I
1310
8
C0307 0.1uF
22
MC74LCX125
U0303-3
9
R0305
VCC5 VCC9
0.1uF
C0302
7
GND
14
VCC
C0308 0.1uF
U0303-5
PWR_GND
0.1uF
C0311
0.1uF
0.1uF
C0313
C0306
0.1uF
C0310 0.1uF
VCC2.85
C0305
3
MC74LCX125
U0303-1
2
1
3
VCC2.85
1
2
4
MC74LCX125
U0300-1
2
1
URTS2
URXD2
UTXD2
TC7S00FU
U0307-1
C0301
0.1uF
BUS+_UARTB_TXD
BUS-_UARTB_RXD
BUSY_UARTB_RTSLHRST_IN
LHRST_OUT RESET_UARTB_CTS
SB96_RS232*_EN
UCTS2 VIP_OUT_1_5V
BOOT_TX
UTXD1_USB_VPOUT
UTXD1_USB_VPOUT
USB_TXENB
RIA_USBSUSP
USB_INT*
USB_VMI
USB_VPI
USB*_RS232_EN
USB+
USB+
USB_PWR
VIP_IN_1_5V
UARTA_CTS
UARTA_TXD
UARTA_RXD
UARTA_RTS
BOOT_DATA_EN*
UCTS1_USB_FSEN
UCTS1_USB_FSEN
RESET_UARTB_CTS
BUS+_UARTB_TXD
BUS-_UARTB_RXD
BUSY_UARTB_RTS
USB_VMOUT
VIP_OUT_1_3V
VIP_IN_1_3V
VIP_OUT_2_3V
VIP_IN_2_3V
UTXD2
UCTS2
LHRST_IN
LHRST_OUT
URTS2
URXD2
BOOT_RX
USB_VPIN
VIP_OUT_2_5V
VIP_IN_2_5V
URXD1_USB_VMIN
URXD1_USB_VMIN
URTS1_USB_XRXD
URTS1_USB_XRXD
SB96_RS232*_EN
USB-
USB-
MAEPF-27847-O
Part Series
300
Part Series
600-1
Part Series
600-2
To Next Page
Loading...
Need help?
General