CC2531F128 Datasheet, PDF (18/35 Pages) Texas Instruments – A USB-Enabled System-On-Chip Solution for 2.4-GHz IEEE 802.15.4 and ZigBee Applications

CC2531F128, CC2531F256
SWRS086A – SEPTEMBER 2009 – REVISED JUNE 2010
CIRCUIT DESCRIPTION
www.ti.com
RESET_N
XOSC_Q2
XOSC_Q1
P2_4
P2_3
P2_2
P2_1
P2_0
P1_7
P1_6
P1_5
P1_4
P1_3
P1_2
P1_1
P1_0
P0_7
P0_6
P0_5
P0_4
P0_3
P0_2
P0_1
P0_0
ON-CHIP VOLTAGE
REGULATOR
VDD (2.0 - 3.6 V)
DCOUPL
RESET
WATCHDOG TIMER
POWER-ON RESET
BROWN OUT
32-MHz
CRYSTAL OSC
32.768-kHz
CRYSTAL OSC
CLOCK MUX and
CALIBRATION
DEBUG
INTERFACE
HIGH-SPEED 32-kHz
RC-OSC RC-OSC
SLEEP TIMER
POWER MGT. CONTROLLER
1-KB
FIFO SRAM
USB
DP
USB PHY
DM
8051 CPU
CORE
MEMORY
ARBITER
8-KB
SRAM
128/256
KB FLASH
DMA
IRQ CTRL
FLASH CTRL
12-Bit DS
ADC
AES
ENCRYPTION
and
DECRYPTION
RADIO REGISTERS
CSMA/CA STROBE PROCESSOR
RADIO DATA INTERFACE
USART 0
DEMODULATOR
and
AGC
MODULATOR
USART 1
TIMER 1 (16-bit)
TIMER 2
(IEEE 802.15.4 MAC TIMER)
TIMER 3 (8-bit)
RECEIVE
TRANSMIT
TIMER 4 (8-bit)
DIGITAL
ANALOG
MIXED
RF_P RF_N
Figure 7. CC2531 Block Diagram
A block diagram of the CC2531 is shown in Figure 7. The modules can be roughly divided into one of three
categories: CPU- and memory-related modules; modules related to peripherals, clocks, and power management;
and radio-related modules. In the following subsections, a short description of each module that appears in
Figure 7 is given.
18
Submit Documentation Feedback
Copyright © 2009–2010, Texas Instruments Incorporated
Product Folder Link(s): CC2531F128 CC2531F256