The CC2541 is a true on-chip system (SoC) solution for power optimization for low power and proprietary 2.4 GHz applications. It makes it possible to build robust network nodes with low overall bill of materials costs. The CC2541 combines the performance of leading RF transceivers with an industry-standard enhanced 8051MCU, in-system programmable flash memory, 8kBRAM and many other powerful features and peripherals. The CC2541 is ideal for systems that require ultra-low power consumption. This is specified by a number of different operating modes. Shorter transition times between operating modes further make low energy consumption possible

The CC2541 is a true on-chip system (SoC) solution for power optimization of Bluetooth low energy and proprietary 2.4 GHz applications. It makes it possible to build robust network nodes with low overall bill of materials costs. The CC2541 combines the performance of leading RF transceivers with an industry-standard enhanced 8051MCU, in-system programmable flash memory, 8kBRAM and many other powerful features and peripherals. The CC2541 on the CC2541 is ideal for systems that require ultra-low power consumption. This is specified by a number of different operating modes. Shorter transition times between operating modes further make low energy consumption possible.

If the USB on the CC2540 is not enabled and the I2C/extra I/O on the CC2541 is not enabled, the CC2541 and CC2540 are pin compatible in a 6mm x 6mm quad flat no-lead (QFN) 40 package. Compared to the CC2540, the CC2541 offers lower RF current consumption. The CC2541 does not have the USB interface of the CC2540 and provides a lower maximum output power in TX mode. The CC2541 also adds an HWI2C interface.

The CC2541 is pin compatible with the CC2533 optimized RF4CE IEEE802.15.4 SoC. The CC2541 is available in two different versions: CC2541F128/F256 with 128kB and 256kB flash respectively.

(1) RF

– 2.4GHz Bluetooth meets low energy specifications and proprietary RF on-chip system

– Supports 250kbps, 500kbps, 1Mbps, 2Mbps controller core data rate – excellent link budget, long-range applications without external front-end – up to 0dBm programmable output power

– Excellent receiver sensitivity (-94dBm at 1Mbps), selectability, and blocking performance

– Suitable for worldwide compliance with radio frequency adjustment systems: ETSIEN300328 and EN3004402 (Europe), FCCCFR4715 (US), and ARIBSTD-T66 (Japan)

(2) layout

– very few external components – providing reference design support

–6mm&TImes; 6mm square flat leadless (QFN)-40 package

– Pin compatible with CC2540 (when USB or I2C is not used) (ADC)

(3) Low power

– Operating mode RX as low as: 17.9 mA

– Operating mode TX (0dBm): 18.2mA – Power mode 1 (4μs wake-up): 270μs – Power mode 2 (sleep timer on): 1μs – Power mode 3 (external interrupt): 0.5μs

(4) TPS62730 is compatible with low power in working mode

–RX as low as: 14.7mA (3V power supply) – TX (0dBm): 14.3mA (3V power supply)

(5) Microcontroller

– High performance and low power 8051 microcontroller core with code prefetch

– In-system programmable flash, 128 or 256KB

– 8KB RAM with hold function in all power modes

– Support hardware debugging

– Extended baseband automation, including automatic acknowledgment and address decoding

– retention of all relevant registers in all power modes

(6) Peripherals

– Powerful 5-channel direct memory access (DMA)

– general purpose timer (1 16 bits, 2 8 bits)

– Infrared (IR) generation circuit

– 32kHz sleep timer with capture

– Digital Signal Strength Indicator (RSSI) support for accurate digital reception

– battery monitor and temperature sensor

– 12-bit analog-to-digital converter (ADC) with 8 channels and configurable resolution

– Advanced Encryption Standard (AES) Security Coprocessor

– 2 powerful universal asynchronous receivers (UARTs) that support several serial protocols

– 23 general purpose I/O pins (21 & TImes; 4 mA, 2 & TImes; 20 mA)

–I2C interface

– 2 I/O pins with LED driver

– safety device timer

– Integrated high performance comparator (7) development tools

–CC2541 Evaluation Module Toolkit (CC2541EMK)

–CC2541 Small Development Kit (CC2541DK-MINI)

–SmartRFTM software

– Provide IAR Embedded WorkbenchTM

(1) Meets the Bluetooth 4.0 protocol-compliant stacker for single-mode Bluetooth low energy (BLE) solutions

– Full power optimized stack, including controller and host

–GAP-central device, peripheral, or broadcaster (including combined roles)

– Attribute Protocol (ATT) / Common Attribute Profile (GATT)

– client and server

–L2CAP Description

(2) Sample application and configuration file

– general application for GAP center and peripheral functions

– distance proximity, accelerometer, simple keywords, and battery GATT service

More applications are supported in the –BLE software stack

(3) Multiple configuration options

– Single chip configuration, allowing applications to run on CC2541

– used to run on an external microprocessor interface

–BTool - Windows (Windows) PC application for evaluation, development and testing

• 2.4GHz Bluetooth low energy system

• Private 2.4GHz system

• Human interface devices (keyboard, mouse, remote)

• 1 HWI2C interface for sports and leisure equipment.

• Mobile phone accessories • Consumer electronics

• TPS62730 is a 2MHz buck converter with bypass mode

• Extend battery life by up to 20%

• Reduced current in all operating modes

• 30nA bypass mode current to support low power mode

• RF performance has not changed

• Small package allows for small solution sizes

• CC2541 controllable

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