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AT76C504A Datasheet(PDF) 1 Page - ATMEL Corporation |
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AT76C504A Datasheet(HTML) 1 Page - ATMEL Corporation |
1 / 3 page 1 Note: This is summary datasheet. A complete document is available under NDA. For more information please contact your local Atmel sales office. Features • Integrates the IEEE 802.11b Physical Layer (Baseband) and the Media Access Controller (MAC) for Supporting Standard Rates up to 11 Mbps • Supports Antenna Diversity Algorithm, Automatic Receive Gain Control, Transmit Gain Control, Transmit Filter for Japanese Regulatory and Differential or Single-ended I- and Q-Baseband Signals • Integrates 160 KBytes of SRAM which Are Organized in Five Banks of 32 KBytes Each, Offering the Flexibility for individually Configuring Each of them as Program or Data Memory • Zero Wait States for Program Execution • Fast Data Transfers through DMA Channels • Low Power ARM7TDMI® RISC Processor • The Bootstrap Code Supports External SPI EEPROM for the Custom Configuration Parameters Used during the Device Enumeration Phase as Well as Default Parameters for First Time EEPROM Programming • Glueless Parallel Flash Memory Interface, Supporting up to 128 KBytes of Nonvolatile Memory • Glueless External SRAM Interface for all MAC Operations, Supporting up to 128 KBytes of External Memory • Wired Equivalency Privacy (WEP) in Hardware Supporting 64-bit and 128-bit Keys • Hardware Implementation of TKIP • Hardware Implementation of AES Encryption Supporting Various Modes (CCM/CTR/CBC) • The WLAN Functions Can Be Easily Changed or Updated to New Requirements Since They are Implemented in Microcode • Supports 11 Mbps Rates with Automatic Fallback to 5.5, 2 and 1 Mbps • SPI Interface and 13 GPIO Pins • 176-ball LFBGA Package • Low-voltage 1.8V Core Operation Block Diagram Timers External Memory Boot ROM Interface Internal Memory (SRAM) ARM7TDMI Decoder/ Arbiter/ Bridge Interrupt Controller SPI Interface 802.11b Baseband MAC Support Unit (MSU) PCMCIA Interface Encryption/ Decryption Block 802.11b Baseband and Media Access Controller (MAC) for PCMCIA Bus AT76C504A Summary Rev. 2388CS–WLAN–07/03 |
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