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参数资料
| 型号： | HFA3842B |
| 厂商： | Intersil Corporation |
| 英文描述： | PCMCIA/USB Wireless LAN Medium Access Controller |
| 中文描述： | 的PCMCIA / USB无线局域网媒体访问控制器 |
| 文件页数： | 1/26页 |
| 文件大小： | 519K |
| 代理商： | HFA3842B |
1
TM
File Number
8020
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
|
Intersil and Design is a trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2001, All Rights Reserved
PRELIMINARY
HFA3842B
PCMCIA/USB Wireless LAN Medium
Access Controller
The Intersil HFA3842B Wireless LAN
Medium Access Controller is part of
the PRISM 2.4GHz radio chip set.
The HFA3842B directly interfaces
with the Intersil HFA386x family of Baseband Processors,
offering a complete end-to-end chip set solution for wireless
LAN products. Protocol and PHY support are implemented in
firmware to allow custom protocol and different PHY
transceivers.
The HFA3842B is designed to provide maximum
performance with minimum power consumption. Package
pin layout provides optimal PC board layout to all user
interfaces including PCMCIA and USB.
Firmware implements the full IEEE 802.11 Wireless LAN
MAC protocol. It supports BSS and IBSS operation under
DCF, and operation under the optional Point Coordination
Function (PCF). Low level protocol functions such as
RTS/CTS generation and acknowledgement, fragmentation
and de-fragmentation, and automatic beacon monitoring are
handed without host intervention. Active scanning is
performed autonomously once initiated by host command.
Host interface command and status handshakes allow
concurrent operations from multi-threaded I/O drivers.
Additional firmware functions specific to access point
applications are also available.
Designing wireless protocol systems using the HFA3842B is
made easier with the availability of evaluation board, firm-
ware, software device drivers, and complete documentation.
The HFA3842B is a WLAN MAC Controller IC, based on the
HFA3841. Pin-for-pin upgrade replacement for the HFA3841.
Applications
High Data Rate Wireless LAN
PC Card Wireless LAN Adapters
USB Wireless LAN Adapters
PCI Wireless LAN Cards (Using Ext. Bridge Chip)
Wireless LAN Modules
Wireless LAN Access Points
Wireless Bridge Products
Wireless Point-to-Multipoint Systems
ISA, ISA PNP WLAN Cards
Features
USB Host Interface supports USB V1.1 at 12Mbps, and is
an alternative to the PC Card host interface.
New start up modes allow the PCMCIA Card Information
Structure to be initialized from a serial EEPROM. This
allows firmware to be downloaded from the host,
eliminating the parallel Flash memory device.
Firmware can be loaded from serial Flash memory.
Direct attachment to a typical x16 SRAM using five control
signals (RAMCS_, MOE_, MWEL_, MLBE_, and MUBE_).
Low frequency crystal oscillator to maintain time and allow
baseband clock source to power off during sleep mode.
Improved performance of internal WEP engine.
On-chip execution can now be viewed while in debug
mode.
Independent programmable cycle timing for external chip
selects allows attachment of slow memory devices without
compromising higher speed instruction execution.
Pinout is backward compatible with HFA3841.
IEEE802.11 Standard Data Rates: 1, 2, 5.5 and 11Mbps
Part of the Intersil PRISM Wireless LAN Chip Set
Full Implementation of the MAC Protocol Specified in IEEE
Standards 802.11-1999 and 802.11b
PCMCIA Host Interface Supports Full 16-Bit
Implementation of PC Card 16 (1995), also ISA PNP with
Additional Chip
Host Interface Provides Dual Buffer Access Paths
External Memory Interface Supports up to 4M bytes RAM
Internal Encryption Engine Executes IEEE802.11 WEP
Low Power Operation; 25mA Active, 8mA Doze, <1mA
Sleep
Operation at 2.7V to 3.6V Supply
5V Tolerant Host Interface Input/Outputs
128 Pin LQFP Package Targeted for Type II PC Cards
IEEE802.11 Wireless LAN MAC Protocol Firmware and
Microsoft Windows Software Drivers
Pin for Pin Replacement for the HFA3841 Supporting all
Functions and operations of the HFA3841
Ordering Information
PART
NUMBER
TEMP.RANGE
(
o
C)
PACKAGE
PKG. NO.
HFA3842BIN
-40 to 85
128 Ld LQFP
Q128.14x20
HFA3842BIN-TK
-40 to 85
Tape and Reel
Data Sheet
June 2001
Microsoft and Windows are registered trademarks of Microsoft Corporation.
PRISM is a registered trademark of Intersil Americas Inc.
PRISM and design is a trademark of Intersil Americas Inc.
相关PDF资料 |
PDF描述 |
|---|---|
| HFA3842BIN | PCMCIA/USB Wireless LAN Medium Access Controller |
| HFA3842BIN-TK | PCMCIA/USB Wireless LAN Medium Access Controller |
| HFA3842IN96 | Wireless LAN Medium Access Controller |
| HFA3842 | Wireless LAN Medium Access Controller |
| HFA3842IN | Wireless LAN Medium Access Controller |
相关代理商/技术参数 |
参数描述 |
|---|---|
| HFA3842BIN | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:PCMCIA/USB Wireless LAN Medium Access Controller |
| HFA3842BIN-TK | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:PCMCIA/USB Wireless LAN Medium Access Controller |
| HFA3842IN | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| HFA3842IN96 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Wireless LAN Medium Access Controller |
| HFA3860 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:11 Mbps Direct Sequence Spread Spectrum Baseband Processor |
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