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BLE121LR Datasheet(PDF) 8 Page - Silicon Laboratories

Part # BLE121LR
Description  Renamed "Bluetooth Smart" to "Bluetooth Low Energy" according to the official Bluetooth SIG nomenclature
PDF  35 Pages
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Manufacturer  SILABS [Silicon Laboratories]
Direct Link  http://www.silabs.com
Logo SILABS - Silicon Laboratories

BLE121LR Datasheet(HTML) 8 Page - Silicon Laboratories

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9
P0_4
I/O
Configurable Input/Output. See Table 4:
Peripheral I/O Pin Mapping
10
P0_5
I/O
Configurable Input/Output. See Table 4:
Peripheral I/O Pin Mapping
11
P0_6
I/O
Configurable Input/Output. See Table 4:
Peripheral I/O Pin Mapping
12
P0_7
I/O
Configurable Input/Output. See Table 4:
Peripheral I/O Pin Mapping
30
P1_2
I/O
Configurable Input/Output. See Table 4:
Peripheral I/O Pin Mapping
29
P1_3
I/O
Configurable Input/Output. See Table 4:
Peripheral I/O Pin Mapping
28
P1_4
I/O
Configurable Input/Output. See Table 4:
Peripheral I/O Pin Mapping
27
P1_5
I/O
Configurable Input/Output. See Table 4:
Peripheral I/O Pin Mapping
17
P1_6
I/O
Configurable Input/Output. See Table 4:
Peripheral I/O Pin Mapping
19
P2_0
I/O
Configurable Input/Output. See Table 4:
Peripheral I/O Pin Mapping
20
P2_1
I/O
Configurable Input/Output. See Table 4:
Peripheral I/O Pin Mapping
21
P2_2
I/O
Configurable Input/Output. See Table 4:
Peripheral I/O Pin Mapping
Table 2: Configurable I/O Terminals
Pin Number
Pin Name
Pad Type
Description
24
SCL
I2C clock
25
SDA
I2C data
18
DCDC_CNTRL
Output
On / by-pass control for an external
DCDC converter
Table 3: Non-configurable Terminals



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