Specifications

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Wireless Connectivity Guide Texas Instruments 4Q 2014
The CC2541 is a power-optimized
true system-on-chip (SoC) solution
for both low energy and proprietary
2.4-GHz applications. It enables robust
network nodes to be built with low
total bill-of-material costs. The CC2541
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
supporting features and peripherals.
The CC2541 is highly suited for systems
where ultra-low power consumption is
required. This is specified by various
operating modes. Short transition times
between operating modes further enable
low power consumption.
The CC2541 is pin-compatible with the
CC2540 in the 6-mm × 6-mm QFN-40
package, if the USB is not used on the
CC2540 and the I2C/extra I/O is not
used on the CC2541.
Key features
• Trueone-chipsinglemode
Bluetooth low energy solution
• OptimizedRFperformanceincluding
Tx/Rx power and selectivity
• Extensiveperipheralsetincluding
I
2
C, DMA, GPIO, USARTs, ADC,
timers
• Flexiblelowpowermodesto
maximize system lifetime when
battery powered
Benefits
• Versatilefeature-richdeviceallows
lowest cost system when integrating
application and stack on single chip
• RFperformancemaximizes
communication range while simulta-
neously minimizing the effect of
interference sources
• Supportsrangeofapplicationsand
reduces BOM cost through all-in-
one SoC solution
• Ultralowaverage-powerconsump-
tion in low-duty cycle systems
Single-Mode Bluetooth
®
Low Energy System-on-Chip
CC2541
Get samples, evaluation modules and application notes at: www.ti.com/sc/device/CC2541
General Characteristics
Parameter Min Typ Max Unit
Frequencyrange 2402 2480 MHz
Datarate — 1000 — kBaud
Operatingvoltage 2 — 3.6 V
Operatingtemperature –40 — 85 ºC
Outputpower –20 — 0 dBm
RX mode
Receiversensitivity — –93 — dBm
Current consumption
Currentconsumption,RX — 17.9 — mA
Currentconsumption,TX,0dBm — 18.2 — mA
Currentconsumption,powerdown — 0.4 — μA
Applications
• Mobile/laptopaccessories
• Sportsandfitness
• Consumerhealthandmedical
• Proximity
Bluetooth
®
low energy Technology
CC2541
Development tools and software
• Single-modeBluetooth low energy
compliant software stack
• CC2541EMKEvaluationModuleKit
for quick product development
• CC2541DK-MINIDevelopmentKit
for quick product development
• CC2540DKDevelopmentKitfor
advance prototyping
• Bluetooth low energy packet sniffer
• Applicationprofiles,sampleapplica-
tions, documentation and more
Timer 2 (BLE LLTIMER)
Timer 1 (16-bit)
Timer 3 (8-bit)
Timer 4 (8-bit)
I
2
C
USART 0
DSADC
Audio/DC
AES Encryption
and Decryption
Analog Comparator
I/O Controller
RESET_N
RESET
32-MHz
Crystal OSC
32-kHz
RC-OSC
High Speed
RC-OSC
32.768-kHz
Crystal OSC
Debug
Interface
8051 CPU
Core
DMA
PDATA
XRAM
IRAM
SRF
UNIFIED
IRQ CTRL
Watchdog Timer
Clock MUX and
Calibration
On-Chip Voltage
Regulator
Sleep Timer
SRAM
FLASH
RAM
FLASH
FLASH CTRL
1-KB SRAM
FIFO CTRL
Radio Registers
Link Layer Engine
SYNTH
Demodulator Modulator
TransmitRecieve
Frequency
Synthesizer
RadioArbiter
SFR busSFR bus
Power Management Controller
VDD (2 V8.6 V)
DCOUPL
Power-On RESET
Brown Out
XOSC_Q2
XOSC_Q1
P2_4
P2_3
P2_2
P2_1
P2_0
USART 1
RF_PRF_N
Digital
Analog
Mixed
P1_7
P1_6
P1_5
P1_4
P1_3
P1_2
P1_1
P1_0
P0_7
P0_6
P0_5
P0_4
P0_3
P0_2
P0_1
P0_0
SDA
SCL
Memory
Arbitrator