STM32U375CE datasheet(156/222 Pages) STMICROELECTRONICS

Part #	STM32U375CE

Description	Ultra-low-power Arm® Cortex®-M33 32-bit MCUTrustZone®FPU, 144 DMIPS, 1 MB flash memory, 256 KB SRAM, SMPS

PDF	222 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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156 / 222 page

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

IDDA(VREFBUF)

VREFBUF consumption from

VDDA

Iload = 0 µA

µA

Iload = 500 µA

Iload = 4 mA

1. In degraded mode, the voltage reference buffer can not accurately maintain the output voltage (VDDA - drop voltage).

2. Evaluated by characterization. Not tested in production.

3. The capacitive load must include a 100 nF capacitor in order to cut off the high-frequency noise.

4. The load regulation value only takes into account the die and package resistance. The parasitic resistance on PCB degrades this value.

5. To correctly control the VREFBUF inrush current during startup phase and scaling change, the VDDA voltage must be in the range of [1.8

V-3.6 V], [2.1 V-3.6 V], [2.4 V-3.6 V] and [2.8 V-3.6 V] for VRS = 000, 001, 010 and 011 respectively.

Figure 42. VREFBUF_OUT versus temperature (VRS = 000)

1.48

1.485

1.49

1.495

1.5

1.505

1.51

-40

-20

100

⁰C

Mean

Min

Max

Figure 43. VREFBUF_OUT versus temperature (VRS = 001)

1.78

1.785

1.79

1.795

1.8

1.805

1.81

1.815

-40

-20

100

⁰C

Mean

Min

Max

STM32U375xx

Electrical characteristics

DS14861 - Rev 2

page 156/222

STM32U375CE Datasheet(PDF) 156 Page - STMicroelectronics

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