Acsip: Track and Play

Introduction

ST50L integrates ARM Cortex®-M4 (32-bit RISC core operating at a 48MHz frequency) MCU with LoRa modulation. It offers an ultra-long-range spectrum communication and high interference immunity simultaneously minimizing power consumption.

The ST50L can achieve a sensitivity under -136 dBm. It has high sensitivity and combined with the integrated +21 dBm power amplifier yields. The industry-leading link makes it optimal for any low data rate application. LoRa also provides significant advantages in both blocking and selectivity over conventional modulation techniques. Solving traditional issues between range, interference immunity, and power consumption.

Partnership & Certification

LoRa Alliance

Technical Support

ST50L integrates

AcSiP has a stronger support chain in technical service which included FAE,HW,SW,PE resource involved.

1)HW

SiP Module

Those Tabpages of ‘Specification’, ‘HDK’ could be refered to know this product further well.

Validation & Certification

AcSiP has accumulated lots of experience in wireless communication and provide solution of RF design and protocol survey to help clients’ products meet local regulation and join global ecosystem well. From project deveoping to product getting certification approval, even know-how in deployment stage,we has collected useful data here for user reference.

2)SW

We have developed sigfox support resource to service clients for another LPWAN ecosystem.

AcSiP provide kinds of software for ST50X series product,ST50H/ST50HE/AI50H/ST50L,to develop IoT relevant applications.

There are main LoRa examples within above SW packages show behind.

♦ Essential Configuration and Commands Set reference

• LoRaWAN_AT_Slave

• LoRaWAN_End_Node

• SubGHz_Phy_PingPong

3)Training & E-Service

FAE is first layer to handle all technical events or service demand. Clients and customers could ask help via familiar channel or sales host to get positive response efficiency or check out online E-Service window finding the relevant resource as well. AcSiP has prepared those data for products in technical support or training courses.

Related Resource

⇒	Product Spec. (Datasheet)
⇒	Application Note
⇒	EVK User Guide
⇒	Footprint
⇒	Commands Set Reference

Related Products

	ST50H High Band / High Power / LoRa SoC SiP Learn More		EK-ST50H KIT High Band / High Power / LoRa SoC SiP Learn More
	ST50HE High Band / Low Power / LoRa SoC SiP Learn More		EK-ST50HE KIT High Band / Low Power / LoRa SoC SiP Learn More
	ST50L Low Band / High Power / LoRa SoC SiP Learn More		EK-ST50L KIT Low Band / High Power / LoRa SoC SiP Learn More
	AI50H LoRa SoC SiP Learn More

For more information, or for sales inquiries, please contact AcSiP Technology Corp.

General Description

The ST50L integrates ARM Cortex®-M4 (32-bit RISC core operating at a 48MHz frequency) MCU with LoRa modulation that provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.

The ST50L can achieve a sensitivity of over -136 dBm. The high sensitivity combined with the integrated +21 dBm power amplifier yields industry leading link budget making it optimal for any low data rate application requiring range or robustness. LoRa also provides significant advantages in both blocking and selectivity over conventional modulation techniques, solving the traditional design compromise between range, interference immunity and energy consumption.

Part Number	Frequency Range	Spreading Factor	Bandwidth	Effective Bitrate	Est. Sensitivity
ST50L	433~510MHz	5~12	7.8~500KHz	LoRa BR: 0.013~17.4 kb/s	-138 dBm
ST50L	433~510MHz	5~12	7.8~500KHz	Kb/s(G)FSK BR:0.6~300kb/s	@125kHz, SF12

Block diagram

Key-feature

► Compact siz with MCU, clock source and sub-GHz radio inside: 12mm x 12mm x 1.22mm(Typ.)
► High performance 32-bit microcontroller: ARM Cortex M4

► Ultra-low power with various consumption levels (Min 1uA@Stop 2 mode)
► STM32 Security: HW encryption 256 AES, PKA, RNG, 64-bit UID(IEEE 802-2001), 96-bit unique die identifier

► Embedded sub-GHz transceiver based-on Semtech SX126x
► Ecosystem support: CN470, EU433

► IoT and Smart Metering industry applications
► Embedded memoryies(256 KB of Flah and 64 KB of RAM)

Power supply scheme

Pin Assignment & Recommend Footprint

The SiP module will conform to the following pin map (Top View) and recommend footprint (mm)

Recommend Reflow Profile

Related Resource

⇒	Product Spec. (Datasheet)
⇒	Application Note
⇒	EVK User Guide
⇒	Footprint
⇒	Commands Set Reference

Related Products

	ST50H High Band / High Power / LoRa SoC SiP Learn More		EK-ST50H KIT High Band / High Power / LoRa SoC SiP Learn More
	ST50HE High Band / Low Power / LoRa SoC SiP Learn More		EK-ST50HE KIT High Band / Low Power / LoRa SoC SiP Learn More
	ST50L Low Band / High Power / LoRa SoC SiP Learn More		EK-ST50L KIT Low Band / High Power / LoRa SoC SiP Learn More
	AI50H LoRa SoC SiP Learn More

For more information, or for sales inquiries, please contact AcSiP Technology Corp.

General Description

The EK-ST50L KIT board provides an affordable way for user to try out LPWAN IoT applications or new concepts evaluation. It also compliance with STM32WL Nucleo-64 board to support ARDUINO Uno V3 connectivity support and the ST morpho headers.

User can download firmware built from SDK via ST-Link to test software flow and debug error according to log shown on termanal tool.

Development Kit Package Information

Item	Count	Description
EK-ST50L KIT	1	Micro USB for Power source and RS232 I/F
Antenna (option)	1	Low band for CN470, EU433

Operation Instruction

Developers could refer to behind figure for essential resource layout then has a survey and implement in their product cases

Step Info:

Developing Interface

►SWD-Download firmware

►RS232-interoperation

User can configure RS232 terminal tool to control EK-ST50L board for SW vaildation and application development.

►SMA connector-Antenna or RF instrument

►Peripheral pins-App implement

EK-ST50 series PCB Connector Description

RF Layout Guide

Application note have showed essential RF layout info for developer reference and make certification approval easier.

►Harmonic suppression

Whether a harmonic suppression circuit is needed, depends on the EMI test result.

The Default LPF value are L5=15nH Murata LQW15AN, C1=7pF, C2=7pF.

►ESD Protection

If used in a harsh ESD environment, the following example is reference design for ESD Protection,

the recommended part is: Semtech@Rclamp2451z (1-Line, 24V)

Engineer Service

AcSiP provide HW/SW relevant engineer service for clients in module design phase and its technical resource has shown on each individual tab page also.Additionally, we have provided those design review serive before the engineer sample came out even debugged for revised one and the clent can ask our sales window, E-Service for this help.

Schematic review
Layout review in RF matching、PCB antenna simulation
Certification test manual
Field test and deployment consultant (option)
Customized module demand (option)

Related Resource

⇒	Product Spec. (Datasheet)
⇒	Application Note
⇒	EVK User Guide
⇒	Footprint
⇒	Commands Set Reference

Item	Description	Download Link
Product Spec. (Datasheet)	ST50L_SPEC(CN)_Ver.B.pdf	Login Contact Us
Product Spec. (Datasheet)	ST50L_SPEC(EN)_Ver.B.pdf	Login Contact Us
Application Note	ST50L_Application_Note(CN)_Ver.B.pdf	Login Contact Us
Application Note	ST50L_Application_Note(EN)_Ver.B.pdf	Login Contact Us
EVK User Guide	EK-ST50_User_Guide_Ver.H.pdf	Free
Footprint	ST50X_Footprint.7z	Login Contact Us
Commands Set Reference	ST50L Commands Set Reference v1.2.1_20220720.pdf	Login Contact Us

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ST50L

ST50H

EK-ST50H KIT

ST50HE

EK-ST50HE KIT

ST50L

EK-ST50L KIT

AI50H

ST50H

EK-ST50H KIT

ST50HE

EK-ST50HE KIT

ST50L

EK-ST50L KIT

AI50H

ST50H

EK-ST50H KIT

ST50HE

EK-ST50HE KIT

ST50L

EK-ST50L KIT

AI50H