DESCRIPTION

RESET

WATCHDOG

TIMER

IRQCTRL

FLASHWRITE

MODULATOR

DEMODULATOR

DMA

8051CPU

CORE

MEMORY

ARBITRATOR

32-MHz

CRYSTAL OSC

32.768-kHz

CRYSTAL OSC

32-kHz

RC-OSC

HIGH-SPEED

RC-OSC

ON-CHIP VOLTAGE

REGULATOR

POWERONRESET

BROWNOUT

DIGITAL

ANALOG

MIXED

SLEEP TIMER

CSMA/CA STROBE

PROCESSOR

RADIOREGISTERS

RADIODATA INTERFACE

USART 1

USART 2

TIMER1(16-Bit)

TIMER3(8-Bit)

TIMER4(8-Bit)

TIMER2

(IEEE802.15.4MAC TIMER)

256-KBFLASH

8-KBSRAM

ADC

AUDIO/DC

8CHANNELS

RECEIVE

CHAIN

TRANSMIT

CHAIN

AES

ENCRYPTION

AND

DECRYPTION

AGC

VDD(2V–3.6V)

DCOUPL

RF_P

RF_N

XOSC_Q2

RESET_N

XOSC_Q1

P2_4

P1_7

P0_7

P2_3

P1_6

P0_6

P2_2

P1_5

P0_5

P1_2

P0_2

P2_1

P1_4

P0_4

P1_1

P0_1

P2_0

P1_3

P0_3

P1_0

P0_0

B0300-02

USB

DM

DP

1-KBUSB FIFO

DEBUG

INTERFACE

CLOCKMUXand

CALIBRATION

SLEEP MODECONTROLLER

USBPHY

CC2531

This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with

appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.

ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more

susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.

The CC2531 is a USB enabled true system-on-chip (SoC) solution for IEEE 802.15.4, Zigbee and RF4CE

applications. It enables USB dongles or USB upgradable network nodes to be built with low total bill-of-material

costs. The CC2531 combines the 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 features. The CC2531

has various operating modes, making it suited for systems where ultralow power consumption is required. Short

transition times between operating modes further ensure low energy consumption. Source code for USB HID and

CDC libraries and examples are downloadable from the CC2531 product page on www.ti.com.

Combined with the industry-leading and golden-unit-status ZigBee protocol stack (Z-Stack™) from Texas

Instruments, the CC2531 provides a robust and complete ZigBee USB dongle or firmware upgradable network

node.

Combined with the golden-unit-status RemoTI™ stack from Texas Instruments, the CC2531 provides a robust

ZigBee RF4CE remote-control target for USB dongle or TV/STB implementations.

2

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Copyright © 2009, Texas Instruments Incorporated

Product Folder Link(s): CC2531