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1FEATURES

23? RF

– 2.4-GHz Bluetooth low energy Compliant

and Proprietary RF System-on-Chip

– Supports 250-kbps, 500-kbps, 1-Mbps, 2-

Mbps Data Rates

– Excellent Link Budget, Enabling Long-

Range Applications Without External Front

End

– Programmable Output Power up to 0 dBm

– Excellent Receiver Sensitivity (–94 dBm at

1 Mbps), Selectivity, and Blocking

Performance

– Suitable for Systems Targeting Compliance

With Worldwide Radio Frequency

Regulations: ETSI EN 300 328 and EN 300

440 Class 2 (Europe), FCC CFR47 Part 15

(US), and ARIB STD-T66 (Japan)

? Layout

– Few External Components

– Reference Design Provided

– 6-mm × 6-mm QFN-40 Package

– Pin-Compatible With CC2540 (When Not

Using USB or I2C)

? Low Power

– Active-Mode RX Down to: 17.9 mA

– Active-Mode TX (0 dBm): 18.2 mA

– Power Mode 1 (4-μs Wake-Up): 270 μA

– Power Mode 2 (Sleep Timer On): 1 μA

– Power Mode 3 (External Interrupts): 0.5 μA

– Wide Supply-Voltage Range (2 V–3.6 V)

? TPS62730 Compatible Low Power in Active

Mode

– RX Down to: 14.7 mA (3-V supply)

– TX (0 dBm): 14.3 mA (3-V supply)

– High-Performance and Low-Power 8051

Microcontroller Core With Code Prefetch

– In-System-Programmable Flash, 128- or

256-KB

– 8-KB RAM With Retention in All Power

Modes

– Hardware Debug Support

– Extensive Baseband Automation, Including

Auto-Acknowledgment and Address

Decoding

– Retention of All Relevant Registers in All

Power Modes

? Peripherals

– Powerful Five-Channel DMA

– General-Purpose Timers (One 16-Bit, Two

8-Bit)

– IR Generation Circuitry

– 32-kHz Sleep Timer With Capture

– Accurate Digital RSSI Support

– Battery Monitor and Temperature Sensor

– 12-Bit ADC With Eight Channels and

Configurable Resolution

– AES Security Coprocessor

– Two Powerful USARTs With Support for

Several Serial Protocols

– 23 General-Purpose I/O Pins

(21 × 4 mA, 2 × 20 mA)

– I2C interface

– 2 I/O Pins Have LED Driving Capabilities

– Watchdog Timer

– Integrated High-Performance Comparator

? Development Tools

– CC2541 Evaluation Module Kit

(CC2541EMK)

– CC2541 Mini Development Kit (CC2541DKWhite

MINI)

– SmartRF? Software

– IAR Embedded Workbench? Available

SOFTWARE FEATURES

? Bluetooth v4.0 Compliant Protocol Stack for

Single-Mode BLE Solution

– Complete Power-Optimized Stack,

Including Controller and Host

– GAP – Central, Peripheral, Observer, or

Broadcaster (Including Combination

Roles)

– ATT / GATT – Client and Server

– SMP – AES-128 Encryption and

Decryption

– L2CAP

– Sample Applications and Profiles

– Generic Applications for GAP Central

and Peripheral Roles

– Proximity, Accelerometer, Simple Keys,

and Battery GATT Services

– More Applications Supported in BLE

Software Stack

– Multiple Configuration Options

– Single-Chip Configuration, Allowing

Applications to Run on CC2541

– Network Processor Interface for

Applications Running on an External

Microcontroller

– BTool – Windows PC Application for

Evaluation, Development, and Test

APPLICATIONS

? 2.4-GHz Bluetooth low energy Systems

? Proprietary 2.4-GHz Systems

? Human-Interface Devices (Keyboard, Mouse,

Remote Control)

? Sports and Leisure Equipment

? Mobile Phone Accessories

? Consumer Electronics

CC2541 WITH TPS62730

? TPS62730 is a 2-MHz Step-Down Converter

With Bypass Mode

? Extends Battery Lifetime by up to 20%

? Reduced Current in All Active Modes

? 30-nA Bypass Mode Current to Support Low-

Power Modes

? RF Performance Unchanged

? Small Package Allows for Small Solution Size

? CC2541 Controllable

DESCRIPTION

The CC2541 is a power-optimized true system-on-

chip (SoC) solution for both Bluetooth 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

ultralow 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 QFN40 package, if the USB is not

used on the CC2540 and the I2C/extra I/O is not used

on the CC2541. Compared to the CC2540, the

CC2541 provides lower RF current consumption. The

CC2541 does not have the USB interface of the

CC2540, and provides lower maximum output power

in TX mode. The CC2541 also adds a HW I2C

interface.

The CC2541 is pin-compatible with the CC2533

RF4CE-optimized IEEE 802.15.4 SoC.

The CC2541 comes in two different versions:

CC2541F128/F256, with 128 KB and 256 KB of flash

memory, respectively.

For the CC2541 block diagram, see Figure 1.