N21
Hardware User Guide
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1
1 About N21
1.1 Product Overview
N21 is an compact industrial-grade NB-IoT module that supports Cat NB1.
N21 series include multiple variants. Table 1-1 Lists the variants and bands supported.
Table 1-1 Variants and bands
Function
Variant
Network Type
Band
N21
N21-CN-011AS1
Cat NB1
HD-FDD: B3,B5,B8
N21-EU-011AS1
Cat NB1
HD-FDD: B3,B5,B8,B20,B28
Featured with ultra-low power consumption, extensive coverage and simple peripheral circuits, N21 is
well applicable for IoT applications that requires low data rate and low power consumption. It adopts
22-pin LGA package and its dimensions are 18 mm x 13.8 mm x 2.5 mm, which can meet the comact
product design requirement .
It provides the following hardware resources and functionalities:
UART interfaces, used for data communication, firmware update, and commissioning
Compatibility with 1.8 V/3.0V USIM card
STATUS (working status) /NET_LIGHT (network status indicator)/WAKEUP (PSM wakeup)
/RESET
1.2 Block Diagram
N21 consists of the following functionality modules:
Power management unit
Clock unit
Digital interfaces (UIM, UART)
RF section
