Data Sheet

ISM4343 Specification
DOC-DS-20074-5.3
Inventek Systems
Page 2
Table of Contents
1 DETAIL DESCRIPTION ....................................................................................................... 4
1.1 Ordering Information for Inventek IWIN Firmware ...................................................... 4
2 OVERVIEW ........................................................................................................................... 5
3 FEATURES ............................................................................................................................ 6
3.1 Limitations ...................................................................................................................... 7
3.2 Regulatory Compliance .................................................................................................. 7
4 COMPLEMENTARY DOCUMENTATION ...................................................................... 10
4.1 EVB............................................................................................................................... 10
5 BLOCK DIAGRAM ............................................................................................................. 11
6 HOST INTERFACES ........................................................................................................... 11
6.1 UART Interface ............................................................................................................ 12
6.2 UART Pins .................................................................................................................... 12
6.2.1 Data Mode ................................................................................................................. 13
6.2.2 Flow Control ............................................................................................................. 13
6.2.3 Supported Baud Rates ............................................................................................... 13
6.2.4 Default Serial Configuration ..................................................................................... 13
6.3 SPI (Serial Peripheral Interface Bus) – USES STM32F412 SPI4 ................................ 14
6.3.1 SPI Communication Overview: ................................................................................ 15
6.3.2 SPI Command Phase: ................................................................................................ 16
6.3.3 SPI Endian Example: ................................................................................................ 16
6.3.4 SPI Data Phase: ......................................................................................................... 17
6.3.5 SPI Asynchronous Messages: ................................................................................... 17
6.3.6 SPI AC Characteristics: ............................................................................................ 18
6.3.7 I2S Timer Interface Characteristics .......................................................................... 19
6.4 ISM4343-WBM-L54-U External Antenna Connections .............................................. 20
6.5 ISM4343-WBM-L54-U/C Mechanical Specifications ................................................. 20
6.6 FIRMWARE UPGRADES ........................................................................................... 20
6.7 ISM4343-WBM-L54-U/C Pinout Description ............................................................. 21
7 ISM4343-WBM-L151 Pinout Description ............................................................................ 23
7.1 Module Pin Number Sequence Definition .................................................................... 23
8 ISM4343-WBM-L151 ELECTRICAL SPECIFICATIONS ................................................ 28
8.1 Absolute Maximum Ratings ......................................................................................... 28
8.2 Environmental Ratings.................................................................................................. 28
8.3 ISM4343 Operating Conditions and DC Characteristics .............................................. 29
8.4 Power Consumption ...................................................................................................... 29
9 RF SPECIFICATIONS ......................................................................................................... 30
9.1 BT RF Specifications .................................................................................................... 30
9.2 WLAN RF Specifications ............................................................................................. 31
9.3 ISM4343-WBM-L54-U External Antenna ................................................................... 38
9.4 Environmental Specifications ....................................................................................... 38
10 Additional Information ......................................................................................................... 39
10.1 Communications Interfaces .......................................................................................... 39
10.1.1 I2C Interface Characteristics................................................................................. 39
11 ISM4343-WBM-L151 Hardware Design Recommendations .............................................. 41