Built on TI CC1312R + CC1190 | 352KB Flash for Complex, Custom IoT Protocol Development
Product Overview
The N621PA is a Sub-1 GHz wireless module based on the Texas Instruments CC1312R microcontroller and CC1190 RF front-end, designed for developers building proprietary, long-range IoT networks. It integrates Texas Instruments' (TI) next-generation CC1312R wireless microcontroller with the CC1190 high-performance RF front-end, delivering exceptional +27 dBm transmit power and -112 dBm receiver sensitivity for reliable line-of-sight communication exceeding 8 kilometers. Its core value lies in providing developers with a powerful, autonomous development platform that combines robust RF performance with ample computational resources. Featuring the CC1312R with 352KB of on-chip Flash, the module offers sufficient space to run complex custom network stacks, advanced application logic, and data security algorithms. It is the ideal hardware foundation for building unique, proprietary IoT systems.
Core Value: Why Choose the N621PA?
The N621PA is the professional choice when your project cannot use standard protocols or requires granular optimization and control over every aspect of network behavior.
Complete IP and Control: You own all code running on the CC1312R. Your protocol stack remains entirely proprietary, safeguarding core business secrets and network specificity.
Ample Space for Complex Applications: The 352KB Flash significantly surpasses entry-level models (128KB), providing ample room for advanced features like multi-hop routing, dense sensor data fusion, and OTA updates.
Optimal Balance of Performance and Flexibility: While offering the same top-tier +27 dBm RF performance as flagship models, it grants low-level control via SPI/UART interfaces for fine-tuning RF parameters, network topology, and power management.
Key Features & Advantages
The key technical specifications that enable the N621PA's performance are summarized below:
Feature
Core Advantage
🚀 Powerful Wireless MCU Core
The TI CC1312R (352KB Flash) delivers robust processing power capable of handling the most complex proprietary protocols and edge computing tasks.
📡 Superior Communication Link
The CC1190 PA ensures a strong +27 dBm signal output, combined with -112 dBm high receiver sensitivity to establish stable connections in congested or harsh RF environments.
🛡️ Industrial-Grade Robust Design
4-layer PCB, an operating temperature range of -30°C to +75°C, and complete 50Ω impedance matching ensure long-term reliability in demanding industrial settings.
🔌 Rich Peripheral Interfaces
Offers over 30 programmable GPIOs (supporting ADC, I2C, PWM, SPI, UART) for direct connection to sensors, actuators, or displays, significantly simplifying overall system design.
🌐 Global Band Support in Hardware
A single hardware design supports key global Sub-1 GHz license-free bands, including 868 MHz (EU), 915 MHz (US), and 780 MHz (CN).
Technical Specifications
Category
Specification
RF & Performance
Chipset: TI CC1312R + CC1190 Output Power: Up to +27 dBm RX Sensitivity:-112 dBm (typical) Typical Range:> 8 km (Line-of-sight, ideal conditions) Protocol Foundation: Supports development of custom protocols based on IEEE 802.15.4g/6LoWPAN.
Electrical
Supply Voltage: Core: 2.0 - 3.6 V; PA: 2.0 - 3.6 V Current Consumption: TX: ~450 mA (@ +27 dBm); RX: ~10 mA; Sleep: 1 µA (software controlled) Operating Temperature:-30°C to +75°C
MCU & Memory
Core: ARM® Cortex®-M4F @ 48 MHz Flash:352 KB RAM: 32 KB Peripheral Access: Full SPI/UART host control interface.
Physical
Dimensions: 33.0 x 24.6 x 3.0 mm Antenna Interface: 50Ω pad or IPEX connector PCB: 4-layer, 1.2 mm thickness Mounting: Surface Mount (SMD)
Pinout & Hardware Interface
The N621PA provides full access to the TI CC1312R's capabilities for advanced integration.
Functional Pin Categories:
Category
Pin Numbers
Description
Power Supply
1, 2, 3, 35
Power ground, PA power (VCCPA), core power (VDD).
RF Interface
34
50Ω antenna connection (pad or IPEX connector).
System Control
16, 17, 22
JTAG (TMS, TCK) for debugging and hardware reset.
Programmable I/O
4-15, 18-21, 23-33
32 configurable pins. Can be software-configured as UART, SPI, I2C, GPIO, ADC, or PWM.
*Note: All programmable I/O functions are assigned through the CC1312R's software configuration, offering maximum flexibility.*
Mechanical Specifications:
Parameter
Specification
Notes
Dimensions
33.0 x 24.6 x 3.0 mm
Compact SMD footprint.
Board Thickness
1.2 mm
Enhanced thermal and mechanical performance.
PCB Layers
4
Optimized for impedance control and noise reduction.
Mounting
Surface Mount (SMD)
Suitable for automated assembly.
Antenna Options
IPEX Connector / RF Pad
Flexible antenna integration.
Product Line Positioning: Build Your Stack
Use the following comparison to decide between building a custom protocol or using a pre-integrated solution based on your project needs:
The N621PA is engineered for in-depth custom development. It complements "turnkey" solutions within the N62xPA series.
Choose the N62xPA Series (620/621/624) if you are building a unique, proprietary protocol and have the resources for full-stack development. Select based on required Flash size.
Choose the N624PA if your project requires standard protocols (WM-Bus/Wi-SUN) or your primary goal is to minimize development time and risk.
Ordering Information & Support
Available Models:
N621PA-868M: For EU/ETSI markets (860–880 MHz).
N621PA-915M: For US/FCC markets (902–928 MHz). (Contact us for other frequency variants or volume pricing.)
