4.1Ordering Information ........................................................................................................ 4-16
ZigBit™ 2.4 GHz Amplified Wireless Modulesi
8228B–MCU Wireless–06/09
1.1Summary
01/12
Section 1
Introduction
ZigBit™ Amp is an ultra-compact, extended range, low-power, high-sensitivity 2.4GHz
IEEE 802.15.4/ZigBee
ware platform, this module is enhanced by an output power amplifier and an input low-noise amplifier,
and is designed for wireless sensing, monitoring & control and data acquisition applications. ZigBit Amp
modules eliminate the need for costly and time-consuming RF development, and shortens time to market for wireless applications with extended range requirements.
Two different versions of ZigBit 2.4 GHz Amplified modules are available: ATZB-A24-UFL with built-in
U.FL antenna connector and the ATZB-A24-U0 with unbalanced RF output. These modules are an addition to the ZigBit family represented by ATZB-24-A2 and ATZB-24-B0. In addition Atmel offer the ZigBit
900 MHz Wireless Module ATZB-900-B0 [2].
1.2Applications
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.
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)
®
OEM module from Atmel. Based on the innovative Atmel's mixed-signal hard-
ZigBit™ 2.4 GHz Amplified Wireless Modules1-1
8228B–MCU Wireless–06/09
1.3Key Features
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• Ultra compact size (38.0 x 13.5 x 2.0 mm)
• High RX sensitivity (-104 dBm)
• Outperforming link budget (up to 124 dB)
• Up to +20 dBm output power
• Very low power consumption:
– < 6 µA in Sleep mode,
– 23 mA in RX mode,
– 50 mA in TX mode
• 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
–I2C
– SPI
–1-Wire
– Up to 30 lines configurable as GPIO
• Capability to use MAC address written into EEPROM
• IEEE 802.15.4 compliant transceiver
• 2.4 GHz ISM band
• BitCloud embedded software, including serial bootloader and AT command set
Introduction
1.4Benefits
• Extended range through additional PA and LNA
• Ultra low power consumption combined with unprecedented range
• Rapid design-in with built-in U.FL connector (ATZB-A24-UFL)
• Flexibility in using a different external antenna for every application
• Small physical footprint and low profile for optimum fit in even the smallest of devices
[5] Atmel Low-Power Transceiver for ZigBee Applications. AT86RF230 datasheet. doc5131.pdf
[6] Ultra Small Surface Mount Coaxial Connectors - Low Profile 1.9mm or 2.4mm Mated Height.
http://www.hirose.co.jp/cataloge_hp/e32119372.pdf
[7] ZigBit™ Amp Development Kit. User's Guide. MeshNetics Doc. S-ZDK-451~02
[8] 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)
[9] ZigBee Specification. ZigBee Document 053474r17, October 19, 2007
[10] BitCloud™ IEEE 802.15.4/ZigBee Software. Product User Guide. Atmel’s doc8199.pdf
Introduction
ZigBit™ 2.4 GHz Amplified Wireless Modules1-4
8228B–MCU Wireless–06/09
2.1Overview
0
01/12
ZigBit™ Amp is an extended-range, low-power, high sensitivity IEEE 802.15.4/ZigBee OEM module,
which occupies less than a square inch of space. Based on a solid combination of Atmel's latest MCU
Wireless hardware platform, power amplifier and low-noise amplifier, the ZigBit Amp offers an
unmatched combination of superior radio performance, ultra-low power consumption and exceptional
ease of integration.
Figure 2-1. ATZB-A24-UFL/UN Block Diagram
Section 2
Zigbit™ Module Overview
VCC (1.8 - 3.6V)
IRQ
UART
USART/SPI
I2C
JTAG
ANALOG
ZigBit Amp modules contains Atmel's ATmega1281V Microcontroller [4] and AT86RF230 RF Transceiver [5]. The module features 128K bytes flash memory and 8K bytes RAM.
The compact all-in-one-chip integration of output Power Amplifier and input Low-Noise Amplifier, along
with RF switches enables digital control of an external RF front-end to dramatically improve ZigBit's
range performance on signal transmission and increase its sensitivity. This ensures stable connectivity
with larger coverage area without significant increase in module size. The HF U.FL coaxial connector [6]
used in the ATZB-A24-UFL module enables the user to choose appropriate external antenna for every
type of application.
ZigBit Amp already contains a complete RF/MCU design with all the necessary passive components
included. The module can be easily mounted on a simple 2-layer PCB with a minimum of required external connection. Compared to a custom RF/MCUsolution, 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.
ATmega1281
GPIO
SPI Bus
AT86RF230
RF
Transceiver
RF
I/O
PA
Antenna
SWSW
LNA
ZigBit™ 2.4 GHz Amplified Wireless Modules2-5
8228B–MCU Wireless–06/09
Zigbit™ Module Overview
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To jumpstart evaluation and development, Atmel also offers a complete set of evaluation and development tools. The new ZigBit Amp Development Kit [7] (ATZB-DK-A24) comes with everything you need to
create custom applications featuring ZigBit Amp 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 tutorials.
ZigBit Amp 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 [7], [8], [9], 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 Amp 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 Amplified Wireless Modules2-6
8228B–MCU Wireless–06/09
3.1Electrical Characteristics
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3.1.1Absolute Maximum Ratings
Section 3
Specifications
Table 3-1. Absolute Maximum Ratings
Voltage on any pin, except RESET with respect to Ground-0.5VVCC + 0.5V
DC Current per I/O Pin40 mA
DC Current DVCC and DGND pins300 mA
Input RF Level+5 dBm
Notes:1. Absolute Maximum Ratings are the values beyond which damage to the device may occur. Under no
3.1.2Test Conditions
,
Table 3-2. Test conditions (unless otherwise stated) F = 2.45 GHz, VCC=3V, T
(1)(2)
ParametersMinMax
circumstances must the absolute maximum ratings given in this table be violated. Stresses beyond
those listed under "Absolute Maximum Ratings" may cause permanent damage to the device.
This is a stress rating only. Functional operation of the device at these or other conditions, beyond those
indicated in the operational sections of this specification, is not implied. Exposure to absolute maximum
rating conditions for extended periods may affect device reliability.
2. Attention! ZigBit AMP is an ESD-sensitive device. Precaution should be taken when handling the
device in order to prevent permanent damage.
=25°C
amb
ParametersRangeUnit
Supply Voltage, V
Current Consumption: RX mode23mA
Current Consumption: TX mode
Current Consumption: Power-save mode
Notes:1. The parameters are measured under the following conditions:
ZigBit™ 2.4 GHz Amplified Wireless Modules3-7
CC
(1)
(1)
a) RMS, BitCloud Software is running at 4 MHz clock rate, DTR line management is turned off
b) All interfaces are set to the default state (see Pin Assignment Table)
c) Output TX power (when measuring consumption in TX mode) is +20dBm
d) JTAG is not connected
3.0 to 3.6V
50mA
< 6µA
8228B–MCU Wireless–06/09
Current consumption actually depends on multiple factors, including but not limited to, the board design
01/12
and materials, BitCloud settings, network activity, EEPROM read/write operations. It also depends on
MCU load and/or peripherals used by an application.
3.1.3RF Characteristics
Table 3-3. RF Characteristics
Frequency Band2.4000 to 2.4835GHz
Numbers of Channels16
Channel Spacing5MHz
Transmitter Output PowerAdjusted in 16 steps+10 to +20dBm
3.2Physical/Environmental Characteristics and Outline
ParametersValueComments
Size38.0 x 13.5 x 2.0 mmATZB-A24-UFL/U0
Operating Temperature Range-20°C to +70°C-40°C to +85°C operational
Operating Relative Humidity Rangeno more than 80%
Note:1. Minor degration of clock stability may occur.
Figure 3-1. ATZB-A24-UFL/U0 Mechanical drawing
Specifications
(1)
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3.3Pin Configuration
01/12
Figure 3-2. ATZB-A24-UFL Pinout
Specifications
Figure 3-3. ATZB-A24-U0 Pinout
ZigBit™ 2.4 GHz Amplified Wireless Modules3-10
8228B–MCU Wireless–06/09
Table 3-6. Pin descriptions
01/12
Connector
PinPin NameDescriptionI/O
1SPI_CLKReserved for stack operation
2SPI_MISOReserved for stack operation
3SPI_MOSIReserved for stack operation
4GPIO0General Purpose digital Input/Output 0
5GPIO1General Purpose digital Input/Output 1
6GPIO2General Purpose digital Input/Output 2
7OSC32K_OUT32.768 kHz clock output
8RESETReset input (active low)
9,22,23DGNDDigital Ground
RF clock output. When module is in active state, 4
10CPU_CLK
11I2C_CLKI
12I2C_DATAI
13UART_TXDUART receive input
14UART_RXDUART transmit output
15UART_RTS
16UART_CTS
MHz signal is present on this line. While module is
in the sleeping state, clock generation is also
stopped
2
C Serial clock output
2
C Serial data input/output
(4)
.
(1)(2)(3)(4)(7)
(1)(2)(3)(4)(7)
RTS input (Request to send) for UART hardware
flow control. Active low
CTS output (Clear to send) for UART hardware
flow control. Active low
17GPIO6General Purpose digital Input/Output 6
18GPIO7General Purpose digital Input/Output 7
19GPIO3General Purpose digital Input/Output 3
20GPIO4General Purpose digital Input/Output 4
21GPIO5General Purpose digital Input/Output 5
24,25D_VCCDigital Supply Voltage (V
26JTAG_TMSJTAG Test Mode Select
27JTAG_TDIJTAG Test Data Input
28JTAG_TDOJTAG Test Data Output
29JTAG_TCKJTAG Test Clock
(2)(3)(4)(6)
30ADC_INPUT_3ADC Input Channel 3
31ADC_INPUT_2ADC Input Channel 2
32ADC_INPUT_1ADC Input Channel 1
33BAT
ADC Input Channel 0, used for battery level
measurement. This pin equals V
34A_VREFInput/Output reference voltage for ADCI/Otri-state
(4)
(4)
(4)
(4)(5)
(4)
(2)(3)(4)(7)
(2)(3)(4)(7)
(2)(3)(4)(7)
(2)(3)(4)(7)(8)
(9)
)
CC
(2)(3)(4)(6)
(2)(3)(4)(6)
(2)(3)(4)(6)
(2)(3)(7)
(2)(3)(7)
(2)(3)(7)
/3.
CC
(2)(3)(4)(7)
(2)(3)(4)(7)
(2)(3)(4)(7)
(2)(3)(4)(7)
(2)(3)(4)(7)
(2)(3)(4)(7)
(2)(3)(4)(7)
(2)(3)(4)(7)
(2)(3)(7)
I/O
I/O
I/Otri-state
I/Otri-state
I/Otri-state
I/Otri-state
I/Otri-state
I/Otri-state
I/Otri-state
I/Otri-state
I/Otri-state
Specifications
Default
State after
Power on
O
O
O
Otri-state
Itri-state
Otri-state
Itri-state
Otri-state
I
I
O
I
Itri-state
Itri-state
Itri-state
Itri-state
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Table 3-6. Pin descriptions
01/12
Connector
PinPin NameDescriptionI/O
35AGNDAnalog ground
36GPIO9/1_WR
General Purpose digital input/output 9 /
1-wire interface
(2)(3)(4)(7)
Specifications
Default
State after
Power on
I/O
37UART_DTR
38USART0_RXDUSART/SPI Receive pin
39USART0_TXDUSART /SPI Transmit pin
40USART0_EXTCLKUSART/SPI External Clock
DTR input (Data Terminal Ready) for UART.
Active low
(2)(3)(4)(7)
(2)(3)(4)(7)
(2)(3)(4)(7)
(2)(3)(4)(7)(11)
Itri-state
Itri-state
Otri-state
I/Otri-state
41GPIO8General Purpose Digital Input/OutputI/Otri-state
42IRQ_7Digital Input Interrupt request 7
43IRQ_6Digital Input Interrupt request 6
44,45,51,52,
53,56,57
DGNDDigital ground
46,47VRRReceiver supply voltage
48,50RF GNDRF Analog Ground
49RFP_IODifferential RF Input/Output
54,55VTTTransmitter supply voltage
(2)(3)(4)(7)
(2)(3)(4)(7)
(9)
(2)(3)(4)(7)
(10)
(9)
Itri-state
Itri-state
I/O
Notes:1. The UART_TXD pin is intended for input (i.e. its designation as "TXD" implies some complex system
containing ZigBit Amp as its RF terminal unit), while UART_RXD pin, vice versa is for output.
2. Most of pins can be configured for general purpose I/O or for some alternate functions as described in
details in the ATmega1281V Datasheet [3].
3. GPIO pins can be programmed either for output, or for input with/without pull-up resistors. Output pin
drivers are strong enough to drive LED displays directly (refer to figures on pages 387-388, [3]).
4. All digital pins are provided with protection diodes to D_VCC and DGND
5. It is strongly recommended to avoid assigning an alternate function for OSC32K_OUT pin because it is
used by BitCloud. However, this signal can be used if another peripheral or host processor requires
32.768 kHz clock, otherwise this pin can be disconnected.
6. Normally, JTAG_TMS, JTAG_TDI, JTAG_TDO, JTAG_TCK pins are used for on-chip debugging and
flash burning. They can be used for A/D conversion if JTAGEN fuse is disabled.
7. The following pins can be configured with the BitCloud software to be general-purpose I/O lines:
GPIO1, GPIO2, GPIO3, GPIO4, GPIO5, GPIO6, GPIO7, GPIO8, GPIO_1WR, I2C_CLK, I2C_DATA,
UART_TXD, UART_RXD, UART_RTS, UART_CTS, ADC_INPUT_3, ADC_INPUT_2, ADC_INPUT_1,
BAT, UART_DTR, USART0_RXD, USART0_TXD, USART0_EXTCLK, IRQ_7, IRQ_6. Additionally, four
JTAG lines can be programmed with software as GPIO as well, but this requires changing the fuse bits
and will disable JTAG debugging.
8. With BitCloud, CTS pin can be configured to indicate sleep/active condition of the module thus providing mechanism for power management of host processor. If this function is necessary, connection of
this pin to external pull-down resistor is recommended to prevent the undesirable transients during
module reset process.
ZigBit™ 2.4 GHz Amplified Wireless Modules3-12
8228B–MCU Wireless–06/09
Specifications
01/12
9. Using ferrite bead and 1 µF capacitor located closely to the power supply pin is recommended, as
shown below.
10. Pins 48, 49 and 50 are featured for ATZB-A24-U0 module only.
11. In SPI mode, USART0_EXTCLK is output. In USART mode, this pin can be configured as either input or
output pin.
ZigBit™ 2.4 GHz Amplified Wireless Modules3-13
8228B–MCU Wireless–06/09
3.4Mounting Information
The below diagrams show the PCB layout recommended for ZigBit Amp module. Neither via-holes nor
wires are allowed on the PCB upper layer in area occupied by the module. As a critical requirement,
RF_GND pins should be grounded via several holes to be located right next to pins thus minimizing
inductance and preventing both mismatch and losses.
Figure 3-4. ATZB-A24-UFL/U0 PCB Recommended Layout, Top View
Specifications
3.5Soldering Profile
The J-STD-020C-compliant soldering profile is recommended according to Table 3-7.
Table 3-7. Soldering profile
Time within 5°C of actual peak temperature20s to 40s
Note:1. The package is backward compatible with PB/Sn soldering profile.
(1)
Profile FeatureGreen package
Average ramp-up rate (217°C to peak)3°C/s max
Preheat tempearture 175°C ± 25°C180s max
Temperature maintained above 217°C60s to 150s
Peak temperature range260°C
Ramp-down rate6°C/s max
Time within 25°C to peak temperature8 minuts max
ZigBit™ 2.4 GHz Amplified Wireless Modules3-14
8228B–MCU Wireless–06/09
3.6Antenna Reference Design
Multiple factors affect proper antenna match, hence, affecting the antenna pattern. The particular factors
are the board material and thickness, shields, the material used for enclosure, the board neighborhood,
and other components adjacent to antenna.
General Recommendations:
Metal enclosure should not be used. Using low profile enclosure might also affect antenna tuning.
Placing high profile components next to antenna should be avoided.
Having holes punched around the periphery of the board eliminates parasitic radiation from the board
edges also distorting antenna pattern.
ZigBit Amp module should not be placed next to consumer electronics which might interfere with
ZigBit Amp's RF frequency band.
The board design should prevent propagation of microwave field inside the board material. Electromagnetic waves of high frequency may penetrate the board thus making the edges of the board radiate,
which may distort the antenna pattern. To eliminate this effect, metalized and grounded holes must be
placed around the board's edges.
Specifications
ZigBit™ 2.4 GHz Amplified Wireless Modules3-15
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4.1Ordering Information
Section 5
Agency Certifications
This equipment complies with Part 15 of the FCC rules and regulations. To fulfill FCC Certification requirements, an OEM
manufacturer must comply with the following regulations:
1. The ATZBA24UFL modular transmitter must be labelled with its own FCC ID number, and, if the FCC ID is not visible when the
module is installed inside another device, then the outside of the device into which the module is installed must also display a label
referring to the enclosed module. This exterior label can use wording such as the following:
Contains FCC ID: VW4A090668
The enclosed device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (i.) this device may
not cause harmful interference and (ii.) this device must accept any interference received, including interference that may cause
undesired operation.
Any similar wording that expresses the same meaning may be used.
2. Designs using the ATZBA24U0 module must be labelled on an external visible area with the following information:
Contains FCC ID: VW4A090667
The enclosed device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (i.) this device may
not cause harmful interference and (ii.) this device must accept any interference received, including interference that may cause
undesired operation.
WARNING: The Original Equipment Manufacturer (OEM) must ensure that the OEM modular transmitter must be labeled with its own
FCC ID number. This includes a clearly visible label on the outside of the final product enclosure that displays the contents shown below.
If the FCC ID is not visible when the equipment is installed inside another device, then the outside of the device into which the equipment
is installed must also display a label referring to the enclosed equipment.
IMPORTANT: This equipment complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device
may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause
undesired operation (FCC 15.19).
The internal / external antenna(s) used for this mobile transmitter must provide a separation distance of at least 20 cm from all persons
and must not be colocated or operating in conjunction with any other antenna or transmitter.
Installers must be provided with antenna installation instructions and transmitter operating conditions for satisfying RF exposure compliance. This device is
approved as a mobile device with respect to RF exposure compliance, and may only be marketed to OEM installers. Use in portable exposure conditions
(FCC 2.1093) requires separate equipment authorization.
IMPORTANT: Modifications not expressly approved by this company could void the user's authority to operate this equipment (FCC section 15.21).
IMPORTANT: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may
cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which
case the user will be required to correct the interference at his own expense (FCC section 15.105).
Part NumberDescription
ATZB-A24-UFLR
ATZB-A24-U0R2.4 GHz IEEE802.15.4/ZigBee Power Amplified OEM Module with Unbalanced RF output
Note:Tape&Reel quantity: 200
Section 4
Ordering Information
2.4 GHz IEEE802.15.4/ZigBee Power Amplified OEM Module with U.FL Antenna
Connector
ZigBit™ 2.4 GHz Amplified Wireless Modules4-16
8228B–MCU Wireless–06/09
HeadquartersInternational
The ATZBA24UFL, ATZBA24U0 Modules has been certified for use in European Union countries. If these modules are incorporated
into a product, the manufacturer must ensure compliance of the final product to the European harmonized EMC and lowvoltage/safety
standards. A Declaration of Conformity must be issued for each of these standards and kept on file as described in Annex II of the
R&TTE Directive.
Furthermore, the manufacturer must maintain a copy of the modules' documentation and ensure the final product does not exceed the
specified power ratings, antenna specifications, and/or installation requirements as specified in the user manual. If any of these
specifications are exceeded in the final product, a submission must be made to a notified body for compliance testing to all
required standards.
IMPORTANT: The 'CE' marking must be affixed to a visible location on the OEM product. The CE mark shall consist of the initials
"CE" taking the following form:
The CE marking must have a height of at least 5mm except where this is not possible on account of the nature of the apparatus.
The CE marking must be affixed visibly, legibly, and indelibly.
More detailed information about CE marking requirements you can find at "DIRECTIVE 1999/5/EC OF THE EUROPEAN PARLIAMENT
AND OF THE COUNCIL" on 9 March 1999 at section 12.
01/12
D
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