BCM20730 Data Sheet
Pin Descriptions
Table 7: Pin Descriptions (Cont.)
Power
Pin Number
32-Pin QFN 40-pin QFN 64-pin BGA Pin Name
I/O Domain
Description
Core
18
20
19
G8
G7
RESET_N
TMC
I/O VDDO
PU
Active-low system reset with open-
drain output & internal pull-up
resistor
17
I
VDDO
Test mode control
High: test mode
Connect to GND if not used.
UART
12
a
a
14
15
H5
G5
UART_RXD
I
VDDM
UART serial input – Serial data input
for the HCI UART interface. Leave
unconnected if not used.
Alternative function:
• GPIO3
UART serial output – Serial data
output for the HCI UART interface.
Leave unconnected if not used.
Alternative Function:
• GPIO2
13
UART_TXD O, PU VDDM
BSC
a
a
2
15
17
18
F7
E8
SDA
SCL
I/O, VDDM
PU
Data signal for an external I C device.
Alternative function:
• SPI_1: MOSI (master only)
• GPIO0
• CTS
2
16
I/O, VDDM
PU
Clock signal for an external I C
device.
Alternative function:
• SPI_1: SPI_CLK (master only)
• GPIO1
• RTS
LDO Regulator Power Supplies
2
3
4
5
B1
C1
LDOIN
I
LDO
LDO
Battery input supply for the LDO
LDO output
LDOOUT
O
a. VDDO for 64-pin package.
BROADCOM
®
September 9, 2013 • 20730-DS108-R
Page 31
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