Si1010/1/2/3/4/5
3. Pinout and Package Definitions
Table 3.1. Pin Definitions for the Si1010/1/2/3/4/5
Name
Pin Number
Si1010/1
Si1014/5
Si1012/3
VDD_MCU
GND_MCU
VBAT
GND
VBAT-
38
37
—
—
—
—
41
38
P In
G
P In
P In
G
Power Supply Voltage for the entire MCU except for the
EZRadioPRO peripheral. Must be 1.8 to 3.6 V.
Required Ground for the entire MCU except for the
EZRadioPRO peripheral.
Battery Supply Voltage. Must be 0.9 to 1.8 V in single-cell
battery mode and 1.8 to 3.6 V in dual-cell battery mode.
In dual-cell battery mode, this pin must be connected
directly to ground.
In one-cell applications, this pin should be connected
directly to the negative battery terminal, which is not
connected to the ground plane.
DC-DC Enable Pin. In single-cell battery mode, this pin
must be connected to VBAT through a 0.68 µH inductor.
In dual-cell battery mode, this pin must be connected
directly to ground.
Power Supply Voltage for the entire MCU except for the
EZRadioPRO peripheral. Must be 1.8 to 3.6 V. This supply
voltage is not required in low power sleep mode. This
voltage must always be > VBAT.
Positive output of the dc-dc converter. In single-cell battery
mode, a 1uF ceramic capacitor is required between dc+ and
dc–. This pin can supply power to external devices when
operating in single-cell battery mode.
In dual-cell battery mode, this pin must be connected
directly to ground.
DC-DC converter return current path. In one-cell mode, this
pin must be connected to the ground plane.
Power Supply Voltage for the analog portion of the
EZRadioPRO peripheral. Must be 1.8 to 3.6 V.
Power Supply Voltage for the digital portion of the
EZRadioPRO peripheral. Must be 1.8 to 3.6 V.
Regulated Output Voltage of the digital 1.7 V regulator for
the EZRadioPRO peripheral. A 1 µF decoupling capacitor is
required.
Required Ground for the digital and analog portions of the
EZRadioPRO peripheral.
Type
Description
DCEN
—
40
P In
G
VDD_MCU /
—
39
P In
DC+
P Out
GND_MCU
DC–
VDD_RF
VDD_DIG
VR_DIG
—
37
G
G
16
28
27
16
28
27
P In
P In
P Out
GND_RF
23
23
G
32
Rev. 1.0
SILABS [ SILICON LABORATORIES ]
