A True System-on-Chip Solution for 2.4-GHz IEEE 802.15.4 and ZigBee Applications
Check for Samples: CC2530F32, CC2530F64, CC2530F128, CC2530F256
1
FEATURES
2345
• RF/Layout
– 2.4-GHz IEEE 802.15.4 Compliant RF
– IEEE 802.15.4 MAC Timer, General-Purpose
Timers (One 16-Bit, Two 8-Bit)
– IR Generation Circuitry
Transceiver– 32-kHz Sleep Timer With Capture
– Excellent Receiver Sensitivity and– CSMA/CA Hardware Support
Robustness to Interference
– Programmable Output Power Up to 4.5 dBm
– Very Few External Components
– Accurate Digital RSSI/LQI Support
– Battery Monitor and Temperature Sensor
– 12-Bit ADC With Eight Channels and
– Only a Single Crystal Needed forConfigurable Resolution
Asynchronous Networks
– 6-mm × 6-mm QFN40 Package
– AES Security Coprocessor
– Two Powerful USARTs With Support for
– Suitable for Systems Targeting ComplianceSeveral Serial Protocols
With Worldwide Radio-Frequency
Regulations: ETSI EN 300 328 and EN 300
440 (Europe), FCC CFR47 Part 15 (US) and
ARIB STD-T-66 (Japan)
•Low Power
– Active-Mode RX (CPU Idle): 24 mA
– Active Mode TX at 1 dBm (CPU Idle): 29 mA
– Power Mode 1 (4 μs Wake-Up): 0.2 mA
– Power Mode 2 (Sleep Timer Running): 1 μA
– Power Mode 3 (External Interrupts): 0.4 μA
– Wide Supply-Voltage Range (2 V–3.6 V)
– 21 General-Purpose I/O Pins
(19 × 4 mA, 2 × 20 mA)
– Watchdog Timer
•Development Tools
– CC2530 Development Kit
– CC2530 ZigBee®Development Kit
– CC2530 RemoTI™ Development Kit for
RF4CE
– SmartRF™ Software
– Packet Sniffer
– IAR Embedded Workbench™ Available
•Microcontroller
– High-Performance and Low-Power 8051APPLICATIONS
Microcontroller Core With Code Prefetch
– 32-, 64-, 128-, or 256-KB
In-System-Programmable Flash
– 8-KB RAM With Retention in All Power
Modes
– Hardware Debug Support
•2.4-GHz IEEE 802.15.4 Systems
•RF4CE Remote Control Systems (64-KB Flash
and Higher)
•ZigBee Systems (256-KB Flash)
•Home/Building Automation
•Lighting Systems
•Industrial Control and Monitoring
•Peripherals
– Powerful Five-Channel DMA
– Integrated High-Performance Op-Amp and
•Low-Power Wireless Sensor Networks
•Consumer Electronics
•Health Care
Ultralow-Power Comparator
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2RemoTI, SmartRF, Z-Stack are trademarks of Texas Instruments.
3IAR Embedded Workbench is a trademark of IAR Systems AB.
4ZigBee is a registered trademark of the ZigBee Alliance.
5All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
The CC2530 is a true system-on-chip (SoC) solution for IEEE 802.15.4, Zigbee and RF4CE applications. It
enables robust network nodes to be built with very low total bill-of-material costs. The CC2530 combines the
excellent performance of a leading RF transceiver with an industry-standard enhanced 8051 MCU, in-system
programmable flash memory, 8-KB RAM, and many other powerful features. The CC2530 comes in four different
flash versions: CC2530F32/64/128/256, with 32/64/128/256 KB of flash memory, respectively. The CC2530 has
various operating modes, making it highly suited for systems where ultralow power consumption is required.
Short transition times between operating modes further ensure low energy consumption.
Combined with the industry-leading and golden-unit-status ZigBee protocol stack ( Z-Stack™) from Texas
Instruments, the CC2530F256 provides a robust and complete ZigBee solution.
Combined with the golden-unit-status RemoTI stack from Texas Instruments, the CC2530F64 and higher provide
a robust and complete ZigBee RF4CE remote-control solution.
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
Supply voltageAll supply pins must have the same voltage–0.33.9V
Voltage on any digital pinV
–0.3VDD + 0.3,
Input RF level10dBm
Storage temperature range–40125°C
ESD
(2)
All pads, according to human-body model, JEDEC STD 22, method A1142kV
According to charged-device model, JEDEC STD 22, method C101500V
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended OperatingConditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) CAUTION: ESD sensitive device. Precaution should be used when handling the device in order to prevent permanent damage.
RECOMMENDED OPERATING CONDITIONS
MINMAXUNIT
Operating ambient temperature range, T
A
–40125°C
Operating supply voltage23.6V
ELECTRICAL CHARACTERISTICS
Measured on Texas Instruments CC2530 EM reference design with TA= 25°C and VDD = 3 V, unless otherwise noted.
Boldface limits apply over the entire operating range, TA= –40°C to 125°C, VDD = 2 V to 3.6 V, and fc= 2394 MHz to
2507 MHz.
PARAMETERTEST CONDITIONSMINTYP MAX UNIT
Digital regulator on. 16-MHz RCOSC running. No radio, crystals, or peripherals active.
Medium CPU activity: normal flash access
32-MHz XOSC running. No radio or peripherals active.
Medium CPU activity: normal flash access
32-MHz XOSC running, radio in RX mode, –50-dBm input power, no peripherals active, CPU
idle
32-MHz XOSC running, radio in RX mode at -100-dBm input power (waiting for signal), no
I
I
Core current
core
consumption
Peripheral Current Consumption (Adds to core current I
Timer 1Timer running, 32-MHz XOSC used90μA
Timer 2Timer running, 32-MHz XOSC used90μA
Timer 3Timer running, 32-MHz XOSC used60μA
Timer 4Timer running, 32-MHz XOSC used70μA
peripherals active, CPU idle
32-MHz XOSC running, radio in TX mode, 1-dBm output power, no peripherals active, CPU idle28.7mA
32-MHz XOSC running, radio in TX mode, 4.5-dBm output power, no peripherals active, CPU
idle
Power mode 1. Digital regulator on; 16-MHz RCOSC and 32-MHz crystal oscillator off;
32.768-kHz XOSC, POR, BOD and sleep timer active; RAM and register retention
Power mode 2. Digital regulator off; 16-MHz RCOSC and 32-MHz crystal oscillator off;
32.768-kHz XOSC, POR, and sleep timer active; RAM and register retention
Power mode 3. Digital regulator off; no clocks; POR active; RAM and register retention0.41μA
Erase1mA
Burst write peak current6mA
(1) Normal flash access means that the code used exceeds the cache storage, so cache misses happen frequently.
(1)
, no RAM access
(1)
, no RAM access
for each peripheral unit activated)
core
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≤ 3.9
3.4mA
6.58.9mA
20.5mA
24.329.6mA
33.539.6mA
0.20.3mA
12μA
GENERAL CHARACTERISTICS
Measured on Texas Instruments CC2530 EM reference design with TA= 25°C and VDD = 3 V, unless otherwise noted.
Measured on Texas Instruments CC2530 EM reference design with TA= 25°C, VDD = 3 V, and fc= 2440 MHz, unless
otherwise noted.
Boldface limits apply over the entire operating range, TA= –40°C to 125°C, VDD = 2 V to 3.6 V, and fc= 2394 MHz to
2507 MHz.
≥ 20 MHz802.15.4 modulated channel, stepped through all channels57dB
≤ –20 MHz57
Co-channel rejectionmodulated at the same frequency as the desired signal. Signal–3dB
Blocking/desensitization
5 MHz from band edgeWanted signal 3 dB above the sensitivity level, CW jammer,–33
10 MHz from band edgePER = 1%. Measured according to EN 300 440 class 2.–33
20 MHz from band edge–32
50 MHz from band edge–31
–5 MHz from band edge–35
–10 MHz from band edge–35
–20 MHz from band edge–34
–50 MHz from band edge–34
Spurious emission. Only largest spurious
emission stated within each band.
30 MHz–1000 MHz<
1 GHz–12.75 GHz
Frequency error tolerance
Symbol rate error tolerance
(1) Difference between center frequency of the received RF signal and local oscillator frequency.
(2) Difference between incoming symbol rate and the internally generated symbol rate
(1)
(2)
PER = 1%, as specified by [1]
[1] requires –85 dBm
PER = 1%, as specified by [1]
[1] requires –20 dBm
Wanted signal –82 dBm, adjacent modulated channel at
5 MHz, PER = 1 %, as specified by [1].
[1] requires 0 dB
Wanted signal –82 dBm, adjacent modulated channel
at –5 MHz, PER = 1 %, as specified by [1].
[1] requires 0 dB
Wanted signal –82 dBm, adjacent modulated channel at
10 MHz, PER = 1%, as specified by [1]
[1] requires 30 dB
Wanted signal –82 dBm, adjacent modulated channel
at –10 MHz, PER = 1 %, as specified by [1]
[1] requires 30 dB
Wanted signal at –82 dBm. Undesired signal is an IEEE
from 2405 to 2480 MHz. Signal level for PER = 1%.
Wanted signal at –82 dBm. Undesired signal is 802.15.4
level for PER = 1%.
Conducted measurement with a 50-Ω single-ended load.
Suitable for systems targeting compliance with EN 300 328,dBm
EN 300 440, FCC CFR47 Part 15 and ARIB STD-T-66.
Measured on Texas Instruments CC2530 EM reference design with TA= 25°C, VDD = 3 V and fc= 2440 MHz, unless
otherwise noted.
Boldface limits apply over the entire operating range, TA= –40°C to 125°C, VDD = 2 V to 3.6 V and fc= 2394 MHz to 2507
MHz.
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
Delivered to a single-ended 50-Ω load through a balun using
Measured on Texas Instruments CC2530 EM reference design with TA= 25°C and VDD = 3 V, unless otherwise noted.
PARAMETERTEST CONDITIONSMINTYPMAX UNIT
Crystal frequency32MHz
Crystal frequency accuracy
requirement
ESREquivalent series resistance660Ω
C
0
C
L
(1) Including aging and temperature dependency, as specified by [1]
Crystal shunt capacitance17pF
Crystal load capacitance1016pF
Start-up time0.3ms
Power-down guard timerequirement is valid for all modes of operation. The3ms
(1)
The crystal oscillator must be in power down for a
guard time before it is used again. This
need for power-down guard time can vary with
crystal type and load.
–4040ppm
32.768-kHz CRYSTAL OSCILLATOR
Measured on Texas Instruments CC2530 EM reference design with TA= 25°C and VDD = 3 V, unless otherwise noted.
PARAMETERTEST CONDITIONSMINTYPMAX UNIT
Crystal frequency32.768kHz
Crystal frequency accuracy
requirement
ESREquivalent series resistance40130kΩ
C
0
C
L
(1) Including aging and temperature dependency, as specified by [1]
Crystal shunt capacitance0.92pF
Crystal load capacitance1216pF
Start-up time0.4s
(1)
–4040ppm
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32-kHz RC OSCILLATOR
Measured on Texas Instruments CC2530 EM reference design with TA= 25°C and VDD = 3 V, unless otherwise noted.
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
Calibrated frequency
Frequency accuracy after calibration±0.2%
Temperature coefficient
Supply-voltage coefficient
Calibration time
(1) The calibrated 32-kHz RC oscillator frequency is the 32-MHz XTAL frequency divided by 977.
(2) Frequency drift when temperature changes after calibration
(3) Frequency drift when supply voltage changes after calibration
(4) When the 32-kHz RC oscillator is enabled, it is calibrated when a switch from the 16-MHz RC oscillator to the 32-MHz crystal oscillator
Measured on Texas Instruments CC2530 EM reference design with TA= 25°C and VDD = 3 V, unless otherwise noted.
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
Frequency
Uncalibrated frequency accuracy±18%
Calibrated frequency accuracy±0.6%±1%
Start-up time10μs
Initial calibration time
(1) The calibrated 16-MHz RC oscillator frequency is the 32-MHz XTAL frequency divided by 2.
(2) When the 16-MHz RC oscillator is enabled, it is calibrated when a switch from the 16-MHz RC oscillator to the 32-MHz crystal oscillator
(1)
(2)
is performed while SLEEPCMD.OSC_PD is set to 0.
RSSI/CCA CHARACTERISTICS
Measured on Texas Instruments CC2530 EM reference design with TA= 25°C and VDD = 3 V, unless otherwise noted.
Measured on Texas Instruments CC2530 EM reference design with TA= 25°C, VDD = 3 V and fc= 2440 MHz, unless
otherwise noted.
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
At ±1-MHz offset from carrier–110
Phase noise, unmodulated carrierAt ±2-MHz offset from carrier–117dBc/Hz
At ±5-MHz offset from carrier–122
ANALOG TEMPERATURE SENSOR
Measured on Texas Instruments CC2530 EM reference design with TA= 25°C and VDD = 3 V, unless otherwise noted.
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
Output at 25°C148012-bit ADC
Temperature coefficient4.5/1°C
Voltage coefficient1/0.1 V
Initial accuracy without calibration±10°C
Accuracy using 1-point calibration (entire
temperature range)
Current consumption when enabled (ADC
current not included)
Measured using integrated ADC using
internal bandgap voltage reference and
maximum resolution
Input voltageVDD is voltage on AVDD5 pin0VDDV
External reference voltageVDD is voltage on AVDD5 pin0VDDV
External reference voltage differentialVDD is voltage on AVDD5 pin0VDDV
Input resistance, signalUsing 4-MHz clock speed197kΩ
Full-scale signal
(1)
ENOB
THD
CMRRCommon-mode rejection ratio>84dB
DNL
(1)
INL
SINAD
(–THD+N)
Effective number of bitsbits
Useful power bandwidth7-bit setting, both single and differential0–20kHz
(1)
Total harmonic distortiondB
Signal to nonharmonic ratio
Crosstalk>84dB
OffsetMidscale–3mV
Gain error0.68%
(1)
Differential nonlinearityLSB
Integral nonlinearityLSB
(1)
Signal-to-noise-and-distortiondB
Conversion timeμs
Power consumption1.2mA
Internal reference voltage1.15V
Internal reference VDD coefficient4mV/V
Internal reference temperature coefficient0.4mV/10°C
(1) Measured with 300-Hz sine-wave input and VDD as reference.
TA= –40°C to 125°C, VDD = 2 V to 3.6 V, unless otherwise noted.
PARAMETERTEST CONDITIONSMIN TYPMAXUNIT
System clock, f
t
SYSCLK
RESET_N low duration1μs
Interrupt pulse duration20ns
= 1/f
SYSCLK
SYSCLK
The undivided system clock is 32 MHz when crystal oscillator is used.
The undivided system clock is 16 MHz when calibrated 16-MHz RC1632MHz
oscillator is used.
See item 1, Figure 1. This is the shortest pulse that is recognized as
a complete reset pin request. Note that shorter pulses may be
recognized but might not lead to complete reset of all modules within
the chip.
See item 2, Figure 1.This is the shortest pulse that is recognized as
an interrupt request.
TA= –40°C to 125°C, VDD = 2 V to 3.6 V, unless otherwise noted.
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
f
clk_dbg
t
1
t
2
t
3
t
4
t
5
t
6
t
7
t
8
Debug clock frequency (see Figure 4)12MHz
Allowed high pulse on clock (see Figure 4)35ns
Allowed low pulse on clock (see Figure 4)35ns
EXT_RESET_N low to first falling edge on
debug clock (see Figure 5)
Falling edge on clock to EXT_RESET_N high
(see Figure 5)
EXT_RESET_N high to first debug command
(see Figure 5)
Debug data setup (see Figure 6)2ns
Debug data hold (see Figure 6)4ns
Clock-to-data delay (see Figure 6)Load = 10 pF30ns
A block diagram of the CC2530 is shown in Figure 8. The modules can be roughly divided into one of three
categories: CPU- and memory-related modules; modules related to peripherals, clocks, and power management;
and radio-related modules. In the following subsections, a short description of each module that appears in
Figure 8 is given.
For more details about the modules and their usage, see the corresponding chapters in the CC253x User's
Guide (SWRU191).
CPU and Memory
The 8051 CPU core used in the CC253x device family is a single-cycle 8051-compatible core. It has three
different memory-access buses (SFR, DATA and CODE/XDATA) with single-cycle access to SFR, DATA, and
the main SRAM. It also includes a debug interface and an 18-input extended interrupt unit.
The interrupt controller services a total of 18 interrupt sources, divided into six interrupt groups, each of which
is associated with one of four interrupt priorities. Any interrupt service request is serviced also when the device is
in idle mode by going back to active mode. Some interrupts can also wake up the device from sleep mode
(power modes 1–3).
The memory arbiter is at the heart of the system, as it connects the CPU and DMA controller with the physical
memories and all peripherals through the SFR bus. The memory arbiter has four memory access points, access
of which can map to one of three physical memories: an 8-KB SRAM, flash memory, and XREG/SFR registers. It
is responsible for performing arbitration and sequencing between simultaneous memory accesses to the same
physical memory.
The 8-KB SRAM maps to the DATA memory space and to parts of the XDATA memory spaces. The 8-KB
SRAM is an ultralow-power SRAM that retains its contents even when the digital part is powered off (power
modes 2 and 3). This is an important feature for low-power applications.
The 32/64/128/256 KB flash block provides in-circuit programmable non-volatile program memory for the
device, and maps into the CODE and XDATA memory spaces. In addition to holding program code and
constants, the non-volatile memory allows the application to save data that must be preserved such that it is
available after restarting the device. Using this feature one can, e.g., use saved network-specific data to avoid
the need for a full start-up and network find-and-join process .
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Clocks and Power Management
The digital core and peripherals are powered by a 1.8-V low-dropout voltage regulator. It provides power
management functionality that enables low power operation for long battery life using different power modes.Five different reset sources exist to reset the device.
Peripherals
The CC2530 includes many different peripherals that allow the application designer to develop advanced
applications.
The debug interface implements a proprietary two-wire serial interface that is used for in-circuit debugging.
Through this debug interface, it is possible to perform an erasure of the entire flash memory, control which
oscillators are enabled, stop and start execution of the user program, execute supplied instructions on the 8051
core, set code breakpoints, and single-step through instructions in the code. Using these techniques, it is
possible to perform in-circuit debugging and external flash programming elegantly.
The device contains flash memory for storage of program code. The flash memory is programmable from the
user software and through the debug interface. The flash controller handles writing and erasing the embedded
flash memory. The flash controller allows page-wise erasure and 4-bytewise programming.
The I/O controller is responsible for all general-purpose I/O pins. The CPU can configure whether peripheral
modules control certain pins or whether they are under software control, and if so, whether each pin is configured
as an input or output and if a pullup or pulldown resistor in the pad is connected. CPU interrupts can be enabled
on each pin individually. Each peripheral that connects to the I/O pins can choose between two different I/O pin
locations to ensure flexibility in various applications.
A versatile five-channel DMA controller is available in the system, accesses memory using the XDATA memory
space, and thus has access to all physical memories. Each channel (trigger, priority, transfer mode, addressing
mode, source and destination pointers, and transfer count) is configured with DMA descriptors anywhere in
memory. Many of the hardware peripherals (AES core, flash controller, USARTs, timers, ADC interface) achieve
highly efficient operation by using the DMA controller for data transfers between SFR or XREG addresses and
flash/SRAM.
Timer 1 is a 16-bit timer with timer/counter/PWM functionality. It has a programmable prescaler, a 16-bit period
value, and five individually programmable counter/capture channels, each with a 16-bit compare value. Each of
the counter/capture channels can be used as a PWM output or to capture the timing of edges on input signals. It
can also be configured in IR Generation Mode where it counts Timer 3 periods and the output is ANDed with
the output of Timer 3 to generate modulated consumer IR signals with minimal CPU interaction.
Timer 2 (the MAC Timer) is specially designed for supporting an IEEE 802.15.4 MAC or other time-slotted
protocol in software. The timer has a configurable timer period and a 24-bit overflow counter that can be used to
keep track of the number of periods that have transpired. A 40-bit capture register is also used to record the
exact time at which a start-of-frame delimiter is received/transmitted or the exact time at which transmission
ends, as well as two 16-bit output compare registers and two 24-bit overflow compare registers that can send
various command strobes (start RX, start TX, etc.) at specific times to the radio modules.
Timer 3 and Timer 4 are 8-bit timers with timer/counter/PWM functionality. They have a programmable
prescaler, an 8-bit period value, and one programmable counter channel with an 8-bit compare value. Each of
the counter channels can be used as a PWM output.
The sleep timer is an ultralow-power timer that counts 32-kHz crystal oscillator or 32-kHz RC oscillator periods.
The sleep timer runs continuously in all operating modes except power mode 3 (PM3). Typical applications of
this timer are as a real-time counter or as a wake-up timer to come out of power mode 1 (PM1) or 2 (PM2).
The ADC supports 7 to 12 bits of resolution in a 30 kHz to 4 kHz bandwidth, respectively. DC and audio
conversions with up to eight input channels (Port 0) are possible. The inputs can be selected as single-ended or
differential. The reference voltage can be internal, AVDD, or a single-ended or differential external signal. The
ADC also has a temperature-sensor input channel. The ADC can automate the process of periodic sampling or
conversion over a sequence of channels.
The operational amplifier is intended to provide front-end buffering and gain for the ADC. Both inputs as well as
the output are available on pins, so the feedback network is fully customizable. A chopper-stabilized mode is
available for applications that need good accuracy with high gain.
The ultralow-power analog comparator enables applications to wake up from PM2 or PM3 based on an analog
signal. Both inputs are brought out to pins; the reference voltage must be provided externally. The comparator
output is connected to the I/O controller interrupt detector and can be treated by the MCU as a regular I/O pin
interrupt.
The random-number generator uses a 16-bit LFSR to generate pseudorandom numbers, which can be read by
the CPU or used directly by the command strobe processor. It can be seeded with random data from noise in the
radio ADC.
The AES encryption/decryption core allows the user to encrypt and decrypt data using the AES algorithm with
128-bit keys. The core is able to support the AES operations required by IEEE 802.15.4 MAC security, the
ZigBee network layer, and the application layer.
A built-in watchdog timer allows the CC2530 to reset itself in case the firmware hangs. When enabled by
software, the watchdog timer must be cleared periodically; otherwise, it resets the device when it times out. It can
alternatively be configured for use as a general 32-kHz timer.
USART 0 and USART 1 are each configurable as either a SPI master/slave or a UART. They provide double
buffering on both RX and TX and hardware flow control and are thus well suited to high-throughput full-duplex
applications. Each has its own high-precision baud-rate generator, thus leaving the ordinary timers free for other
uses.
The CC2530 features an IEEE 802.15.4-compliant radio transceiver. The RF core controls the analog radio
modules. In addition, it provides an interface between the MCU and the radio which makes it possible to issue
commands, read status, and automate and sequence radio events. The radio also includes a packet-filtering and
address-recognition module.
TYPICAL CHARACTERISTICS
RX CURRENT (–100 dBm INPUT)TX CURRENT (TXPOWER = 0xF5)
vsvs
TEMPERATURETEMPERATURE
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RX CURRENT (–100 dBm INPUT)TX CURRENT (TXPOWER = 0xF5)
When using an unbalanced antenna such as a monopole, a balun should be used to optimize performance. The
balun can be implemented using low-cost discrete inductors and capacitors. The recommended balun shown
consists of C262, L261, C252, and L252.
If a balanced antenna such as a folded dipole is used, the balun can be omitted.
Crystal
An external 32-MHz crystal, XTAL1, with two loading capacitors (C221 and C231) is used for the 32-MHz crystal
oscillator. See the 32-MHz Crystal Oscillator section for details. The load capacitance seen by the 32-MHz
crystal is given by:
XTAL2 is an optional 32.768-kHz crystal, with two loading capacitors (C321 and C331) used for the 32.768-kHz
crystal oscillator. The 32.768-kHz crystal oscillator is used in applications where both very low sleep-current
consumption and accurate wake-up times are needed. The load capacitance seen by the 32.768-kHz crystal is
given by:
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(1)
(2)
A series resistor may be used to comply with the ESR requirement.
On-Chip 1.8-V Voltage-Regulator Decoupling
The 1.8-V on-chip voltage regulator supplies the 1.8-V digital logic. This regulator requires a decoupling capacitor
(C401) for stable operation.
Power-Supply Decoupling and Filtering
Proper power-supply decoupling must be used for optimum performance. The placement and size of the
decoupling capacitors and the power supply filtering are very important to achieve the best performance in an
application. TI provides a compact reference design that should be followed very closely.
References
1. IEEE Std. 802.15.4-2006: Wireless Medium Access Control (MAC) and Physical Layer (PHY) Specifications
for Low-Rate Wireless Personal Area Networks (LR-WPANs)
2. CC253x User's Guide – CC253x System-on-Chip Solution for 2.4 GHz IEEE 802.15.4 and ZigBee
Applications (SWRU191)
Additional Information
Texas Instruments offers a wide selection of cost-effective, low-power RF solutions for proprietary and
standard-based wireless applications for use in industrial and consumer applications. Our selection includes RF
transceivers, RF transmitters, RF front ends, and System-on-Chips as well as various software solutions for the
sub-1- and 2.4-GHz frequency bands.
In addition, Texas Instruments provides a large selection of support collateral such as development tools,
technical documentation, reference designs, application expertise, customer support, third-party and university
programs.
The Low-Power RF E2E Online Community provides technical support forums, videos and blogs, and the chance
to interact with fellow engineers from all over the world.
With a broad selection of product solutions, end application possibilities, and a range of technical support, Texas
Instruments offers the broadest low-power RF portfolio. We make RF easy!
The following subsections point to where to find more information.
Texas Instruments Low-Power RF Web Site
Texas Instruments’ Low-Power RF Web site has all our latest products, application and design notes, FAQ
section, news and events updates, and much more. Just go to www.ti.com/lprf.
Low-Power RF Online Community
•Forums, videos, and blogs
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•E2E interaction
Join us today at www.ti.com/lprf-forum.
SWRS081B –APRIL 2009– REVISED FEBRUARY 2011
Texas Instruments Low-Power RF Developer Network
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Changes from Revision A (November 2010) to Revision BPage
•Changed recommendation for single-crystal implementations to asynchronous networks .................................................. 1
•Added op-amp and comparator to peripherals list ................................................................................................................ 1
•Added number of erase cycles and page size for flash ........................................................................................................ 5
•Updated ESR for 32 kHz crystal ........................................................................................................................................... 8
•Updated voltage coefficient for temperature sensor ............................................................................................................. 9
•Added tables for op-amp and comparator to the Electrical Characteristics section ........................................................... 10
•Changed SPI AC characteristics SSN low from SCK negative edge to SCK positive edge and split into separate
master and slave tables. ..................................................................................................................................................... 13
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
Status
(1)
Package Type Package
Drawing
PinsPackage Qty
Eco Plan
& no Sb/Br)
& no Sb/Br)
& no Sb/Br)
& no Sb/Br)
& no Sb/Br)
& no Sb/Br)
& no Sb/Br)
& no Sb/Br)
(2)
Lead/
Ball Finish
CU NIPDAU Level-3-260C-168 HRPurchase Samples
CU NIPDAU Level-3-260C-168 HRRequest Free Samples
CU NIPDAU Level-3-260C-168 HRPurchase Samples
CU NIPDAU Level-3-260C-168 HRRequest Free Samples
CU NIPDAU Level-3-260C-168 HRPurchase Samples
CU NIPDAU Level-3-260C-168 HRRequest Free Samples
CU NIPDAU Level-3-260C-168 HRPurchase Samples
CU NIPDAU Level-3-260C-168 HRRequest Free Samples
MSL Peak Temp
(3)
Samples
(Requires Login)
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight
in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
Addendum-Page 1
PACKAGE OPTION ADDENDUM
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