Datasheet> 器件分类 > 半导体> 嵌入式处理器和控制器> STM32L073VZT6

STM32L073VZT6: 产品描述ARM Microcontrollers - MCU; 产品类别半导体嵌入式处理器和控制器; 文件大小2MB，共143页; 制造商ST(意法半导体); 官网地址http://www.st.com/; 标准

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STM32L073VZT6概述

ARM Microcontrollers - MCU

STM32L073VZT6规格参数

参数名称	属性值
Product Attribute	Attribute Value
制造商 Manufacturer	ST(意法半导体)
产品种类 Product Category	ARM Microcontrollers - MCU
RoHS	Details
Core	ARM Cortex M0+
Data Bus Width	32 bit
工作电源电压 Operating Supply Voltage	1.8 V to 3.6 V
最小工作温度 Minimum Operating Temperature	- 40 C
最大工作温度 Maximum Operating Temperature	+ 85 C
接口类型 Interface Type	I2C, SPI, USART, LPUART, USB
产品 Product	MCU
Moisture Sensitive	Yes
工厂包装数量 Factory Pack Quantity	540
单位重量 Unit Weight	0.091712 oz

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STM32L073x8 STM32L073xB

STM32L073xZ

Ultra-low-power 32-bit MCU Arm

-based Cortex

-M0+, up to 192KB

Flash, 20KB SRAM, 6KB EEPROM, LCD, USB, ADC, DACs

Datasheet

production data

Features

•

Ultra-low-power platform

– 1.65 V to 3.6 V power supply

–

-40

to 125 °C temperature range

– 0.29 µA Standby mode (3 wakeup pins)

– 0.43 µA Stop mode (16 wakeup lines)

– 0.86 µA Stop mode + RTC + 20 KB RAM

retention

– Down to 93 µA/MHz in Run mode

– 5 µs wakeup time (from Flash memory)

– 41 µA 12-bit ADC conversion at 10 ksps

Core: Arm

32-bit Cortex

-M0+ with MPU

– From 32 kHz up to 32 MHz max.

– 0.95 DMIPS/MHz

Memories

– Up to 192 KB Flash memory with ECC (2 banks

with read-while-write capability)

– 20KB RAM

– 6 KB of data EEPROM with ECC

– 20-byte backup register

– Sector protection against R/W operation

Up to 84 fast I/Os (78 I/Os 5V tolerant)

Reset and supply management

– Ultra-safe, low-power BOR (brownout reset)

with 5 selectable thresholds

– Ultra-low-power POR/PDR

– Programmable voltage detector (PVD)

Clock sources

– 1 to 25 MHz crystal oscillator

– 32 kHz oscillator for RTC with calibration

– High speed internal 16 MHz factory-trimmed RC

(+/- 1%)

– Internal low-power 37 kHz RC

– Internal multispeed low-power 65 kHz to

4.2 MHz RC

– Internal self calibration of 48 MHz RC for USB

– PLL for CPU clock

Pre-programmed bootloader

– USB, USART supported

Development support

– Serial wire debug supported

LCD driver for up to 4x52 or 8x48 segments

UFBGA100

7x7 mm

LQFP48 7 x 7 mm

LQFP64 10x10 mm

LQFP100 14x14 mm

TFBGA64

5x5 mm

•

– Support contrast adjustment

– Support blinking mode

– Step-up converted on board

Rich Analog peripherals

– 12-bit ADC 1.14 Msps up to 16 channels (down

to 1.65 V)

– 2 x 12-bit channel DACs with output buffers

(down to 1.8 V)

– 2x ultra-low-power comparators (window mode

and wake up capability, down to 1.65 V)

Up to 24 capacitive sensing channels supporting

touchkey, linear and rotary touch sensors

7-channel DMA controller, supporting ADC, SPI,

I2C, USART, DAC, Timers

11x peripheral communication interfaces

– 1x USB 2.0 crystal-less, battery charging

detection and LPM

– 4x USART (2 with ISO 7816, IrDA), 1x UART

(low power)

– Up to 6x SPI 16 Mbits/s

– 3x I2C (2 with SMBus/PMBus)

11x timers: 2x 16-bit with up to 4 channels, 2x 16-bit

with up to 2 channels, 1x 16-bit ultra-low-power

timer, 1x SysTick, 1x RTC, 2x 16-bit basic for DAC,

and 2x watchdogs (independent/window)

CRC calculation unit, 96-bit unique ID

True RNG and firewall protection

All packages are ECOPACK

Table 1. Device summary

Reference

Part number

STM32L073V8

STM32L073VB, STM32L073RB,

STM32L073CB

STM32L073VZ, STM32L073RZ,

STM32L073CZ

•

STM32L073x8

STM32L073xB

STM32L073xZ

September 2017

This is information on a product in full production.

DocID027096 Rev 4

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www.st.com

Contents

STM32L073xx

Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.1

2.2

Device overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Ultra-low-power device continuum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Functional overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.1

3.2

3.3

3.4

Low-power modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Interconnect matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Arm® Cortex®-M0+ core with MPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Reset and supply management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.4.1

3.4.2

3.4.3

Power supply schemes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Power supply supervisor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.5

3.6

3.7

3.8

3.9

3.10

3.11

3.12

3.13

Clock management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Low-power real-time clock and backup registers . . . . . . . . . . . . . . . . . . . 25

General-purpose inputs/outputs (GPIOs) . . . . . . . . . . . . . . . . . . . . . . . . . 25

Memories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Boot modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Direct memory access (DMA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Liquid crystal display (LCD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Analog-to-digital converter (ADC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Temperature sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

3.13.1

3.13.2

Internal voltage reference (V

REFINT

) . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

LCD

voltage monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

3.14

3.15

3.16

3.17

Digital-to-analog converter (DAC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Ultra-low-power comparators and reference voltage . . . . . . . . . . . . . . . . 29

Touch sensing controller (TSC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Timers and watchdogs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

3.17.1

3.17.2

3.17.3

General-purpose timers (TIM2, TIM3, TIM21 and TIM22) . . . . . . . . . . . 31

Low-power Timer (LPTIM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Basic timer (TIM6, TIM7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

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3.17.4

3.17.5

3.17.6

Contents

SysTick timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Independent watchdog (IWDG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Window watchdog (WWDG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

3.18

Communication interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

3.18.1

3.18.2

3.18.3

3.18.4

3.18.5

I2C bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Universal synchronous/asynchronous receiver transmitter (USART) . . 34

Low-power universal asynchronous receiver transmitter (LPUART) . . . 34

Serial peripheral interface (SPI)/Inter-integrated sound (I2S) . . . . . . . . 35

Universal serial bus (USB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

3.19

3.20

3.21

Clock recovery system (CRS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Cyclic redundancy check (CRC) calculation unit . . . . . . . . . . . . . . . . . . . 36

Serial wire debug port (SW-DP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Pin descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Memory mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

6.1

Parameter conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

6.1.1

6.1.2

6.1.3

6.1.4

6.1.5

6.1.6

6.1.7

6.1.8

Minimum and maximum values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Typical values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Typical curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Loading capacitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Pin input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Power supply scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Optional LCD power supply scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Current consumption measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

6.2

6.3

Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

6.3.1

6.3.2

6.3.3

6.3.4

6.3.5

6.3.6

6.3.7

6.3.8

General operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Embedded reset and power control block characteristics . . . . . . . . . . . 64

Embedded internal reference voltage . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Supply current characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Wakeup time from low-power mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

External clock source characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Internal clock source characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

PLL characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

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6.3.9

6.3.10

6.3.11

6.3.12

6.3.13

6.3.14

6.3.15

6.3.16

6.3.17

6.3.18

6.3.19

6.3.20

6.3.21

STM32L073xx

Memory characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

EMC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Electrical sensitivity characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

I/O current injection characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

I/O port characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

NRST pin characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

12-bit ADC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

DAC electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Temperature sensor characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Comparators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Timer characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

Communications interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

LCD controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

7.1

7.2

7.3

7.4

7.5

7.6

LQFP100 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

UFBGA100 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

LQFP64 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128

TFBGA64 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

LQFP48 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134

Thermal characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137

7.6.1

Reference document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138

Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139

Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140

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List of tables

Table 1.

Table 2.

Table 3.

Table 4.

Table 5.

Table 6.

Table 7.

Table 8.

Table 9.

Table 10.

Table 11.

Table 12.

Table 13.

Table 14.

Table 15.

Table 16.

Table 17.

Table 18.

Table 19.

Table 20.

Table 21.

Table 22.

Table 23.

Table 24.

Table 25.

Table 26.

Table 27.

Table 28.

Table 29.

Table 30.

Table 31.

Table 32.

Table 33.

Table 34.

Table 35.

Table 36.

Table 37.

Table 38.

Table 39.

Table 40.

Table 41.

Table 42.

Table 43.

Table 44.

Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Ultra-low-power STM32L073xxx device features and peripheral counts . . . . . . . . . . . . . . 11

Functionalities depending on the operating power supply range . . . . . . . . . . . . . . . . . . . . 16

CPU frequency range depending on dynamic voltage scaling . . . . . . . . . . . . . . . . . . . . . . 16

Functionalities depending on the working mode

(from Run/active down to standby) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

STM32L0xx peripherals interconnect matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Temperature sensor calibration values. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Internal voltage reference measured values. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Capacitive sensing GPIOs available on STM32L073xx devices . . . . . . . . . . . . . . . . . . . . 30

Timer feature comparison . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Comparison of I2C analog and digital filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

STM32L073xx I

C implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

USART implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

SPI/I2S implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Legend/abbreviations used in the pinout table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

STM32L073xx pin definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Alternate functions port A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Alternate functions port B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Alternate functions port C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Alternate functions port D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Alternate functions port E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Alternate functions port H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Voltage characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Current characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Thermal characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

General operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Embedded reset and power control block characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . 64

Embedded internal reference voltage calibration values . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Embedded internal reference voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Current consumption in Run mode, code with data processing running from

Flash memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Current consumption in Run mode vs code type,

code with data processing running from Flash memory . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Current consumption in Run mode, code with data processing running from RAM . . . . . . 69

Current consumption in Run mode vs code type,

code with data processing running from RAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

Current consumption in Sleep mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Current consumption in Low-power run mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Current consumption in Low-power sleep mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Typical and maximum current consumptions in Stop mode . . . . . . . . . . . . . . . . . . . . . . . . 74

Typical and maximum current consumptions in Standby mode . . . . . . . . . . . . . . . . . . . . . 75

Average current consumption during Wakeup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Peripheral current consumption in Run or Sleep mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Peripheral current consumption in Stop and Standby mode . . . . . . . . . . . . . . . . . . . . . . . 79

Low-power mode wakeup timings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

High-speed external user clock characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Low-speed external user clock characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

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STM32L073VZT6相似产品对比

	STM32L073VZT6	STM32L073VZT3	STM32L073VZT7U	STM32L073CZT6	STM32L073CZY6TR	STM32L073VZI6	STM32L073CBT6	STM32L073VZT6D	STM32L073RZI6
描述	ARM Microcontrollers - MCU	ARM Microcontrollers - MCU	ARM Microcontrollers - MCU	ARM Microcontrollers - MCU	ARM Microcontrollers - MCU 16/32-BITS MICROS	ARM Microcontrollers - MCU	ARM Microcontrollers - MCU 16/32-BITS MICROS	ARM Microcontrollers - MCU	ARM Microcontrollers - MCU 16/32-BITS MICROS
Product Attribute	Attribute Value	Attribute Value	Attribute Value	Attribute Value	Attribute Value	Attribute Value	Attribute Value	Attribute Value	Attribute Value
制造商 Manufacturer	ST(意法半导体)	ST(意法半导体)	ST(意法半导体)	ST(意法半导体)	ST(意法半导体)	ST(意法半导体)	ST(意法半导体)	ST(意法半导体)	ST(意法半导体)
产品种类 Product Category	ARM Microcontrollers - MCU	ARM Microcontrollers - MCU	ARM Microcontrollers - MCU	ARM Microcontrollers - MCU	ARM Microcontrollers - MCU	ARM Microcontrollers - MCU	ARM Microcontrollers - MCU	ARM Microcontrollers - MCU	ARM Microcontrollers - MCU
工厂包装数量 Factory Pack Quantity	540	540	90	1500	5000	2496	1500	540	2940
RoHS	Details	Details	-	Details	Details	-	Details	Details	Details
Core	ARM Cortex M0+	ARM Cortex M0+	ARM Cortex M0+	ARM Cortex M0+	-	ARM Cortex M0+	-	ARM Cortex M0+	-
Data Bus Width	32 bit	32 bit	32 bit	32 bit	-	32 bit	-	32 bit	-
工作电源电压 Operating Supply Voltage	1.8 V to 3.6 V	1.8 V to 3.6 V	1.65 V to 3.6 V	1.8 V to 3.6 V	-	1.8 V to 3.6 V	-	1.65 V to 3.6 V	-
最小工作温度 Minimum Operating Temperature	- 40 C	- 40 C	- 40 C	- 40 C	-	- 40 C	-	- 40 C	-
最大工作温度 Maximum Operating Temperature	+ 85 C	+ 125 C	+ 105 C	+ 85 C	-	+ 85 C	-	+ 85 C	-
接口类型 Interface Type	I2C, SPI, USART, LPUART, USB	I2C, SPI, USART, LPUART, USB	I2C, SPI, USART, LPUART, USB	I2C, SPI, USART, LPUART, USB	-	I2C, SPI, USART, LPUART, USB	-	I2C, SPI, USART, LPUART, USB	-
产品 Product	MCU	MCU	MCU	MCU	-	MCU	-	MCU	-
单位重量 Unit Weight	0.091712 oz	0.091712 oz	-	0.091712 oz	-	0.091712 oz	-	0.091712 oz	-

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