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UM1870 Datasheet(PDF) 8 Page - STMicroelectronics

Part # UM1870
Description  BlueNRG-MS development kits
PDF  58 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

UM1870 Datasheet(HTML) 8 Page - STMicroelectronics

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Hardware description
UM1870
8/58
DocID027602 Rev 1
2.1.1
Microcontroller and connections
The board features an STM32L151RB microcontroller, which is an ultra low-power
microcontroller with 128 KB of Flash memory, 16 KB of RAM, 32-bit core ARM cortex-M3, 4
KB of data EEPROM, RTC, LCD, timers, USART, I2C, SPI, ADC, DAC and comparators.
The microcontroller is connected to various components such as buttons, LEDs and
connectors for external circuitry. The following table shows what functionality is available on
each microcontroller pin.
Table 1. MCU pin description versus board function
Pin
name
Pin
Board function
LEDs
DB connector
Buttons /
joystick
Acceler.
Temp.
sensor
USB
JTAG
Ext.
conn
VLCD
1
PC13
2
DB_SDN_RST
PC14
3
3
PC15
4
5
OSC_IN
5
OSC_O
UT
6
NRST
7
RESET
7
PC0
8
LED1
PC1
9
LED2
PC2
10
DB_PIN3
PC3
11
9
VSSA
12
VDDA
13
PA0
14
11
PA1
15
13
PA2
16
15
PA3
17
17
VSS_4
18
VDD_4
19
PA4
20
SPI1_NSS
PA5
21
SPI1_SCK
PA6
22
SPI1_MISO
PA7
23
SPI1_MOSI
PC4
24
LED4
PC5
25
LED5
PB0
26
JOY_DOWN



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