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PDF AT76C505 Data sheet ( Hoja de datos )
| Número de pieza | AT76C505 | |
| Descripción | 802.11b Media Access Controller (MAC) and Baseband with USB Interface | |
| Fabricantes | ATMEL Corporation | |
| Logotipo |  |
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Features
• IEEE 802.11b MAC and Baseband for Supporting Standard Rates Up to 11 Mbps
• Wireless Interface Following the IEEE 802.11b Standard
• Wireless LAN MAC Unit with ARM7TDMI® RISC Processor
• Integrated 128-byte Transmit and 128-byte Receive FIFOs for Wireless MAC
Layer Functions
• Delivers Standard Wireless Networking to Any Host that Supports a Full-speed
(12 Mbps) USB Interface
• The On-chip Boot-ROM Implements the Device Upgrade Protocol (DFU) Spec Making
the AT76C505 Ideal for Low-cost Terminal Adaptors without Requiring External
Program Flash Since the Host Driver Downloads the Code During the Start-up Phase
• Support of an External Serial EEPROM for Configuration Settings
• Glueless SRAM Interface for All MAC Operations, Supporting Up to 1M Byte of
External Memory
• Integrated 6K x 32-bit Internal SRAM, Used for Fast Program Code Execution and
Temporary Storage of Data
• Glueless Flash Memory Interface, Supporting Up to 1M Byte of Nonvolatile Memory for
Permanent Storage of Program Code
• Wired Equivalency Privacy (WEP) in Hardware Supporting 64-bit and 128-bit
Encryption
• Hardware Implementation of Time Critical MAC Functions by the MAC Support Unit
(MSU) Guarantees Maximum Robustness
• The WLAN and Inter-networking Functions Can Be Changed and Updated Easily to
New Requirements Since They are Implemented in Microcode
• Supports 11 Mbps Rates with Automatic Fallback to 5.5, 2 and 1 Mbps
• 128-ball CABGA Package
• Low-voltage 3.3V Operation
• SPI Interface and 8 GPIO Pins
• Baseband Supports Antenna Diversity Algorithm
• Baseband Supports Japan Filter
• Baseband Supports Differential or Single-ended I- and Q-Baseband Signals
• Integrated 802.11b Baseband Processor
Block Diagram
802.11b
Media Access
Controller
(MAC) and
Baseband with
USB Interface
AT76C505
Summary
SPI Interface
USB Interface
Timers
Boot ROM
External
Memory
Interface
Internal
Memory
(SRAM)
ARM7TDMI
MAC Support
Unit (MSU)
802.11b
Baseband
Decoder/
Arbiter/
Bridge
Interrupt
Controller
WEP
2364DS–WLAN–07/03
Note: This is a summary datasheet. A complete document is available
under NDA. For more information, please contact your local Atmel sales
office.
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1 page | ||
| Páginas | Total 3 Páginas | |
| PDF Descargar | [ Datasheet AT76C505.PDF ] | |
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