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BLE121LR Datasheet(PDF) 7 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) 7 Page - Silicon Laboratories

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3 Pinout and Terminal Description
Figure 1: BLE121LR
Pin Number
Pin Name
Pad Type
Description
1-3, 14, 15,
22 31-36
GND
GND
GND
13
AVDD
Supply voltage
23
DVDD
Supply voltage
7
Reset
Reset
Active low reset. Internal pull-up.
Table 1: Supply and RF Terminal Descriptions
Pin Number
Pin Name
Pad Type
Description
6
P0_0
I/O
Configurable Input/Output. See Table 4:
Peripheral I/O Pin Mapping
5
P0_1
I/O
Configurable Input/Output. See Table 4:
Peripheral I/O Pin Mapping
4
P0_2
I/O
Configurable Input/Output. See Table 4:
Peripheral I/O Pin Mapping
8
P0_3
I/O
Configurable Input/Output. See Table 4:
Peripheral I/O Pin Mapping



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