1FEATURES
• RF section
– Single-Chip 2.4-GHz RF Transceiver and
MCU
– Supports 250 kbps, 500 kbps, 1 Mbps and 2
Mbps data rates
– Excellent Link Budget, Enabling Long
Range Without External Front-Ends
– Programmable Output Power up to 5 dBm
– Excellent Receiver Sensitivity (–90 dBm at
2 Mbps, –98 dBm at 250 kbps)
– Suitable for Systems Targeting Compliance
With Worldwide Radio Frequency
Regulations: ETSI EN 300 328 and EN 300
440 Category 2 (Europe), FCC CFR47 Part
15 (US), and ARIB STD-T66 (Japan)
– Accurate RSSI Function
• Layout
– Few External Components
– Pin Out Suitable for Single Layer PCB
Applications
– Reference Designs Available
– 32-pin 5-mm × 5-mm QFN (16 General I/O
Pins) Package
• Low Power
– Active Mode RX Best Performance: 21.2 mA
– Active Mode TX (0 dBm): 26 mA
– Power Mode 1 (5 μs Wake-Up): 235 μA
– Power mode 2 (sleep timer on): 0.9 μA
– Power mode 3 (External interrupts): 0.4μA
– Wide Supply Voltage Range (2V to 3.6V)
– Full RAM and Register Retention in All
Power Modes
• Microcontroller
– High-Performance and Low-Power 8051
Microcontroller Core With Code Prefetch
– 32-KB Flash Program Memory
– 1 KB SRAM
– Hardware Debug Support
– Extensive Baseband Automation, Including
Auto-Acknowledgement and Address
Decoding
• Peripherals
– Two-Channel DMA with Access to all
Memory Areas and Peripherals
– General-Purpose Timers (One 16-Bit, Two
8-Bit)
– Radio Timer, 40-Bit
– IR Generation Circuitry
– Several Oscillators:
– 32MHz XOSC
– 16MHz RCOSC
– 32kHz RCOSC
– 32-kHz Sleep Timer With Capture
– AES Security Coprocessor
– UART/SPI/I2C Serial Interface
– 16 General-Purpose I/O pins (3 × 20-mA
Drive Strength, Remaining pins have 4 mA
Drive Strength)
– Watchdog Timer
– True Random-Number Generator
– ADC and Analog Comparator

APPLICATIONS
• Proprietary 2.4-GHz Systems
• Human Interface Devices (keyboard, mouse)
• Consumer Electronics

DESCRIPTION
The CC2543 is an optimized system-on-chip (SoC) solution with data rates up to 2Mbps built with low bill-ofmaterial
cost. The CC2543 combines the excellent performance of a leading RF transceiver with a single-cycle
8051 compliant CPU, 32-KB in-system programmable flash memory, up to 1-KB RAM, and many other powerful
features. The CC2543 has efficient power modes with RAM and register retention below 1 μA, making it highly
suited for low-duty-cycle systems where ultra-low power consumption is required. Short transition times between
operating modes further ensure low energy consumption.
The CC2543 is compatible with the CC2541/CC2544/CC2545. It comes in a 5-mm × 5-mm QFN32 package, with
SPI/UART/I2C interface. The CC2543 comes complete with reference designs from Texas Instruments.
The device targets wireless consumer and HID applications. The CC2543 is tailored for peripheral devices such
as wireless mice.