STM32L4S5AI datasheet(55/275 Pages) STMICROELECTRONICS

55 / 275 page

DocID030322 Rev 2

55/275

STM32L4S5xx, STM32L4S7xx and STM32L4S9xx

Functional overview

The I2C peripheral supports:

•

I2C-bus specification and user manual rev. 5 compatibility:

–

Slave and master modes, multimaster capability

–

Standard-mode (Sm), with a bitrate up to 100 kbit/s

–

Fast-mode (Fm), with a bitrate up to 400 kbit/s

–

Fast-mode plus (Fm+), with a bitrate up to 1 Mbit/s and 20 mA output drive I/Os

–

7-bit and 10-bit addressing mode, multiple 7-bit slave addresses

–

Programmable setup and hold times

–

Optional clock stretching

•

System management bus (SMBus) specification rev 2.0 compatibility:

–

Hardware PEC (packet error checking) generation and verification with ACK

control

–

Address resolution protocol (ARP) support

–

SMBus alert

•

Power system management protocol (PMBusTM) specification rev 1.1 compatibility

•

Independent clock: a choice of independent clock sources allowing the I2C

communication speed to be independent from the PCLK reprogramming. Refer to

Figure 5: Clock tree

•

Wakeup from Stop mode on address match

•

Programmable analog and digital noise filters

•

1-byte buffer with DMA capability

Table 11. I2C implementation

I2C features(1)

1. X: supported

I2C1

I2C2

I2C3

I2C4

Standard-mode (up to 100 kbit/s)

Fast-mode (up to 400 kbit/s)

Fast-mode Plus with 20 mA output drive I/Os (up to 1 Mbit/s)

Programmable analog and digital noise filters

SMBus/PMBus hardware support

Independent clock

Wakeup from Stop 0, Stop 1 mode on address match

Wakeup from Stop 2 mode on address match

STM32L4S5AI Datasheet(PDF) 55 Page - STMicroelectronics

STM32L4S5AI Datasheet(HTML) 55 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL