Mcu Current Ammeter; Table 6. Connector Cn2 - STMicroelectronics STM32L476 User Manual

UM1879
Pin number
10.13

MCU current ammeter

The jumper JP5, labeled Idd, allows the consumption of STM32L476VGT6 to be measured
directly by a built-in current ammeter circuit able to measure from 60nA to 50mA or by
removing the jumper and connecting an ammeter:
•
Jumper on position OFF: STM32L476VGT6 is powered (default).
• Jumper on position ON: an on-board module is designed to measure from 60nA to
50mA by using several MOSFETs and switching automatically depending on the read
value.
• No jumper on JP5: an ammeter must be connected to measure the STM32L476VGT6
current through pin 1 and 2 (if there is no ammeter, the STM32L476VGT6 is not
powered).
Description
1 I2C1_SDA (PB7)
2
3 I2C1_SCL (PB6)
4 EXT_RST(PD0)

Table 6. Connector CN2

Pin number
NC
UM1879 Rev 4
Hardware layout and configuration
Description
5
6
7
8
+3V3
NC
GND
NC
21/41
40