CC2541 BLE 4.0 Bluetooth Module

CC2541 BLE 4.0 Bluetooth Module

The CC2541 is a power-optimized Bluetooth Low Energy (BLE 4.0) System-on-Chip from Texas Instruments, combining a 2.4GHz RF transceiver with an enhanced 8051 MCU, 128/256KB flash, and 8KB RAM. Its ultra-low power modes make it ideal for IoT, wearables, and battery-powered wireless applications.

Key Features

• Bluetooth Low Energy (BLE 4.0) compliant
• 2.4GHz RF, supports 250kbps to 2Mbps data rates
• Receiver sensitivity: -94 dBm @ 1Mbps
• Programmable TX power up to 0 dBm
• Enhanced 8051 MCU core
• 128KB or 256KB in-system programmable flash
• 8KB RAM with retention in all power modes
• 12-bit ADC with 8 channels
• AES security coprocessor
• 2x USART, I2C, 23 GPIO pins
• Ultra-low power: 0.5µA in PM3, 1µA in PM2
• Supply voltage: 2V – 3.6V
• 6mm x 6mm QFN-40 package

Applications

• BLE IoT sensor nodes
• Wearable health monitoring devices
• Wireless HID devices
• Smart home and proximity beacons