Microchip Technology A090664 User Manual
ZigBit™ 2.4 GHz Wireless Modules
....................................................................................................................
ATZB-24-A2/B0
Datasheet
8226C–MCU Wireless–09/10
ZigBit™ 2.4 GHz Wireless Modules 1-2
8226C–MCU Wireless–09/10
Table of Contents
Section 1
1.1 Summary............................................................................................................................ 1-1
1.2 Applications........................................................................................................................ 1-1
1.3 Key Features...................................................................................................................... 1-2
1.4 Benefits .............................................................................................................................. 1-2
1.5 Abbreviations and Acronyms ............................................................................................. 1-2
1.6 Related Documents ........................................................................................................... 1-4
Section 2
2.1 Overview ............................................................................................................................ 2-5
Section 3
3.1 Electrical Characteristics.................................................................................................... 3-7
3.1.1 Absolute Maximum Ratings ................................................................................. 3-7
3.1.2 Test Conditions.................................................................................................... 3-7
3.1.3 RF Characteristics ............................................................................................... 3-8
3.1.4 ATmega1281V Microcontroller Characteristics ................................................... 3-8
3.1.5 Module Interfaces characteristics ........................................................................ 3-8
3.2 Physical/Environmental Characteristics and Outline ......................................................... 3-9
3.3 Pin Configuration ............................................................................................................. 3-11
3.4 Mounting Information ....................................................................................................... 3-15
3.5 Sample Antenna Reference Designs............................................................................... 3-16
3.5.1 General recommendations ................................................................................ 3-17
3.6 Antenna specifications ..................................................................................................... 3-18
3.6.1 ATZB-24-B0....................................................................................................... 3-18
3.6.2 ATZB-24-A2....................................................................................................... 3-20
Section 4
4.1 UNITED STATES (FCC).................................................................................................. 4-22
4.2 EUROPEAN UNION (ETSI)............................................................................................. 4-23
4.3 Approved Antenna List..................................................................................................... 4-24
Section 5
5.1 Ordering Information ........................................................................................................ 5-25
ZigBit™ 2.4 GHz Wireless Modules i
8226C–MCU Wireless–09/10
1.1 Summary
ZigBit™ is an ultra-compact, low-power, high-sensitivity 2.4 GHz IEEE 802.15.4/ZigBee® OEM module
based on the innovative Atmel’s mixed-signal hardware platform. It is designed for wireless sensing,
control and data acquisition applications. ZigBit modules eliminate the need for costly and time-consuming RF development, and shortens time to market for a wide range of wireless applications.
Two different versions of 2.4 GHz ZigBit modules are available: ATZB-24-B0 module with balanced RF
port for applications where the benefits of PCB or external antenna can be utilized and ATZB-24-A2
module with dual chip antenna satisfying the needs of applications requiring integrated, small-footprint
antenna design.
1.2 Applications
ZigBit module is compatible with robust IEEE 802.15.4/ZigBee stack that supports a self-healing, selforganizing mesh network, while optimizing network traffic and minimizing power consumption. Atmel
offers two stack configurations: BitCloud and SerialNet. BitCloud is a ZigBee PRO certified software
development platform supporting reliable, scalable, and secure wireless applications running on Atmel’s
ZigBit modules. SerialNet allows programming of the module via serial AT-command interface.
Section 1
Introduction
The applications include, but are not limited to:
•
Building automation & monitoring
– Lighting controls
– Wireless smoke and CO detectors
– Structural integrity monitoring
• HVAC monitoring & control
• Inventory management
• Environmental monitoring
• Security
• Water metering
• Industrial monitoring
– Machinery condition and performance monitoring
– Monitoring of plant system parameters such as temperature, pressure, flow, tank level, humidity,
vibration, etc.
• Automated meter reading (AMR)
ZigBit™ 2.4 GHz Wireless Modules 1-1
8226C–MCU Wireless–09/10
1.3 Key Features
• Ultra compact size (24 x 13.5 x 2.0 mm for ATZB-24-A2 module and 18.8 x 13.5 x 2.0 mm for ATZB-24-B0
module)
• Innovative (patent-pending) balanced dual chip antenna design with antenna gain of approximately 0 dBi
(for ATZB-24-A2 version)
• High RX sensitivity (-101 dBm)
• Outperforming link budget (104 dB)
• Up to 3 dBm output power
• Very low power consumption:
– < 6 µA in Sleep mode,
– 19 mA in RX mode,
– 18 mA in TX mode
• Ample memory resources (128K bytes of flash memory, 8K bytes RAM, 4K bytes EEPROM)
• Wide range of interfaces (both analog and digital):
– 9 spare GPIO, 2 spare IRQ lines
– 4 ADC lines + 1 line for supply voltage control (up to 9 lines with JTAG disabled)
– UART with CTS/RTS control
–USART
2
–I
– SPI
–1-Wire
– Up to 30 lines configurable as GPIO
– Capability to write own MAC address into the EEPROM
– Optional antenna reference designs
– IEEE 802.15.4 compliant transceiver
– 2.4 GHz ISM band
– BitCloud embedded software, including serial bootloader and AT command set
Introduction
C
1.4 Benefits
• Small physical footprint and low profile for optimum fit in even the smallest of devices
• Best-in-class RF link range
• Extended battery life
• Easy prototyping with 2-layer PCB
• Ample memory for user software application
• Mesh networking capability
• Easy-to-use low cost Evaluation Kit
• Single source of support for HW and SW
• Worldwide license-free operation
1.5 Abbreviations and Acronyms
ADC Analog-to -Digital Converter
API Application Programming Interface
DC Direct Current
ZigBit™ 2.4 GHz Wireless Modules 1-2
8226C–MCU Wireless–09/10
DTR Data Terminal Ready
DIP Duap In-line package
EEPROM Electrically Erasable Programmable Read-Only Memory
ESD Electrostatic Discharge
GPIO General Purpose Input/Output
HAL Hardware Abstraction Layer
HVAC Heating, Ventilating and Air Conditioning
HW Hardware
2
C Inter-Integrated Circuit
I
IEEE Institute of Electrical and Electrionics Engineers
IRQ Interrupt Request
ISM Industrial, Scientific and Medical radio band
JTAG
Digital interface for debugging of embedded device, also known as IEEE 1149.1 standard
interface
MAC Medium Access Control layer
MCU
Microcontroller Unit. In this document it also means the processor, which is the core of ZigBit
module
Introduction
NWK Network layer
OEM Original Equipment Manufacturer
OTA Over-The-Air upgrade
PCB Printed Circuit Board
PER Package Error Ratio
PHY Physical layer
RAM Random Access Memory
RF Radio Frequency
RTS/CTS Request to Send/ Clear to Send
RX Receiver
SMA Surface Mount Assembly
SPI Serial Peripheral Interface
SW Software
TTM Time To Market
TX Transmitter
UART Universal Asynchronous Receiver/Transmitter
USART Universal Synchronous/Asynchronous Receiver/Transmitter
USB Universal Serial Bus
ZDK ZigBit Development Kit
ZigBee,
ZigBee PRO
Wireless networking standards targeted at low-power applications
802.15.4 The IEEE 802.15.4-2003 standard applicable to low-rate wireless Personal Area Network
ZigBit™ 2.4 GHz Wireless Modules 1-3
8226C–MCU Wireless–09/10
1.6 Related Documents
[1] Atmel 8-bit AVR Microcontroller with 64K/128K/256K Bytes In-System Programmable Flash. 2549F
AVR 04/06
[2] Atmel Low-Power Transceiver for ZigBee Applications. AT86RF230 datasheet. doc5131.pdf
[3] IEEE Std 802.15.4-2003 IEEE Standard for Information technology - Part 15.4 Wireless Medium
Access Control (MAC) and Physical Layer (PHY) Specifications for Low-Rate Wireless Personal Area
Networks (LR-WPANs)
[4] ZigBee Specification. ZigBee Document 053474r17, October 19, 2007
[5] BitCloud™ IEEE 802.15.4/ZigBee Software. AVR2050: BitCloud User Guide. Atmels doc8199.pdf
[6] ZigBit™ Development Kit. User's Guide. MeshNetics Doc. S-ZDK-451 - TBD
Introduction
ZigBit™ 2.4 GHz Wireless Modules 1-4
8226C–MCU Wireless–09/10
2.1 Overview
ATmega1281
AT86RF230
RF
Transceiver
VCC (1.8 - 3.6V)
RF I/O
GPIO
SPI Bus
IRQ
UART
USART/SPI
I2C
JTAG
ANALOG
ATmega1281
AT86RF230
RF
Transceiver
VCC (1.8 - 3.6V)
GPIO
SPI Bus
IRQ
UART
USART/SPI
I2C
JTAG
ANALOG
Chip
Antenna
ZigBit is a low-power, high-sensitivity IEEE 802.15.4/ ZigBee-compliant OEM module. This multi-functional device occupies less than a square inch of space, which is comparable to a typical size of a single
chip. Based on a solid combination of Atmel’s latest MCU Wireless hardware platform [1], the ZigBit
offers superior radio performance, ultra-low power consumption, and exceptional ease of integration.
Figure 2-1. ATZB-24-B0 Block Diagram
Section 2
Zigbit™ Module Overview
Figure 2-2. ATZB-24-A2 Block Diagram
ZigBit™ 2.4 GHz Wireless Modules 2-5
8226C–MCU Wireless–09/10
Zigbit™ Module Overview
ZigBit modules comply with the FCC (Part 15), IC and ETSI (CE) rules applicable to the devices radiating in uncontrolled environment. For details, see “Agency Certifications” on page 4-22.
ZigBit fully satisfies the requirements of the “Directive 2002/95/EC of the European Parliament and the
Council of 27January 2003 on the restriction of the use of certain hazardous substances in electrical and
electronic equipment” (RoHS). Atmel provides fully compliant product in all regions where the directive is
enforced since July 1, 2006.
ZigBit contains Atmel’s ATmega1281V Microcontroller [1] and AT86RF230 RF Transceiver [2]. The module features 128 Kbytes flash memory and 8 Kbytes RAM.
The ZigBit already contains a complete RF/MCU-related design with all the necessary passive components included. The module can be easily mounted on a simple 2-layer PCB. Compared to a custom
RF/MCU design, a module-based solution offers considerable savings in development time and NRE
cost per unit during the design, prototyping, and mass production phases of product development.
Innovative (patent-pending) dual chip antenna design in ATZB-24-A2 module eliminates the balun and
achieves good performance over 2.4 GHz frequency band.
To jumpstart evaluation and development, Atmel also offers a complete set of evaluation and development tools. The ZigBit Development Kit [6] (ATZB-DK-24) comes with everything you need to create
custom applications featuring ZigBit module.
The kit features MeshBean development boards with an easy-to-access extension connector for attaching third party sensors and other peripherals, and a JTAG connector for easy application uploading and
debugging.
The kit also includes reference applications to speed up application development, source code for hardware interface layer and reference drivers for the all the module interfaces, intuitive development
environment from Atmel, and comprehensive set of application notes and product documentation.
ZigBit modules comes bundled with BitCloud, a 2
nd
generation embedded software stack from Atmel.
BitCloud is fully compliant with ZigBee PRO and ZigBee standards for wireless sensing and control [3],
[4], [5] and it provides an augmented set of APIs which, while maintaining 100% compliance with the
standard, offer extended functionality designed with developer's convenience and ease-of-use in mind.
Depending on end-user design requirements, ZigBit can operate as a self-contained sensor node, where
it would function as a single MCU, or it can be paired with a host processor driving the module over a
serial interface. In the former case, a user application may be used with the BitCloud software allowing
customization of embedded applications through BitCloud’s C API.
In the latter case, the host processor controls data transmission and manages module peripherals via an
extensive set of SerialNet AT commands. Thus, no firmware customization is required for a successful
module design-in. Additionally, third-party sensors can be connected directly to the module, thus
expanding the existing set of peripheral interfaces.
ZigBit™ 2.4 GHz Wireless Modules 2-6
8226C–MCU Wireless–09/10
Loading...