Single Chip
Bluetooth
™

Controller
AT76C551
Rev. 1612D–08/01
Features
• Implements Bluetooth
™
Specification on Short Distance Wireless Communication in
2.4 GHz ISM Band
Provides 1 Mbps Aggregate Bit Rate
Supports Frequency Hopping Spread Spectrum Physical-layer Interface to Dedicated
Transceiver with Frequency Hopping Algorithm Implemented in Hardware
Provides Baseband Functions in Hardware which Implement Bluetooth Low-level Bit
Processing Such as Forward Error Correction (FEC), Header Error Check (HEC) and
CRC Generation/Checking and Encryption/Decryption
Integrated ARM7TDMI
®
RISC Processor
Glueless SRAM Interface, Supporting Up to 256K Bytes of Memory
Glueless Flash Memory Interface, Supporting Up to 256K Bytes of Nonvolatile Memory
Glueless PCMCIA Bus Interface Conforming to PC Card Standard – Feb. 1995
USB Interface Conforming to Universal Serial Bus Standard Version 1.1
16550 UART Core Offering 32-byte Receive FIFO and Programmable Baud Rate
Programmable 8/16-bit Wide External Memory Interface
Supports Multiple Reference Clock Frequencies (13.000, 14.400, 16.800, 19.440 MHz)
176-lead LQFP
3.3V Supply
System Level Block Diagram
RSSI
ARM
Clock
Generator
Transmit Data Processing
3-Wire
Control Bus
Memory
Interface
Internal
RAM
PCMCIA
Interface
USB
Slave
AMBA Bus
Interface
Voice
CODEC
Receive Sequencing
Manager
UART
Power
Management
Receive Data Front-end
Receive Data Processing
1