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HFA3842B の電気的特性と機能

HFA3842BのメーカーはIntersil Corporationです、この部品の機能は「PCMCIA/USB Wireless LAN Medium Access Controller」です。


製品の詳細 ( Datasheet PDF )

部品番号 HFA3842B
部品説明 PCMCIA/USB Wireless LAN Medium Access Controller
メーカ Intersil Corporation
ロゴ Intersil Corporation ロゴ 




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HFA3842B Datasheet, HFA3842B PDF,ピン配置, 機能
TM
PRELIMINARY
Data Sheet
HFA3842B
June 2001
File Number 8020
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
(oC) PACKAGE
PKG. NO.
HFA3842BIN
-40 to 85 128 Ld LQFP Q128.14x20
HFA3842BIN-TK -40 to 85 Tape and Reel
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.
1 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

1 Page





HFA3842B pdf, ピン配列
HFA3842B
HFA3842B Pin Descriptions
HOST INTERFACE PINS
PIN NAME
PIN NUMBER
PIN I/O TYPE
HA0-9
106-113, 117, 118 5V Tol, CMOS, Input, 50K Pull Down
HCE1-
1 5V Tol, CMOS, Input, 50K Pull Up
HCE2-
122 5V Tol, CMOS, Input, 50K Pull Up
HD0-15
101-99, 6-2,
96-94, 128-125,
123
5V Tol, BiDir, 2mA, 50K Pull Down
HINPACK-
103 CMOS Output, 2mA
HIORD-
120 5V Tol, CMOS, Input, 50K Pull Up
HIOWR-
119 5V Tol, CMOS, Input, 50K Pull Up
HRDY/HIREQ-
114 CMOS Output, 4mA
HOE-
HREG-
HRESET
HSTSCHG-
HWAIT-
HWE-
USB+
USB-
USB ATTACHED
121 5V Tol, CMOS, Input, 50K Pull Up
102 5V Tol, CMOS, Input, 50K Pull Up
16 5V Tol, CMOS, ST Input, 50K Pull Up
36 CMOS Output, 4mA
104 CMOS Output, 4mA
116 5V Tol, CMOS Input, 50K Pull Up
12 CMOS BiDir, 2mA, (Also USB Transceiver)
11 CMOS BiDir, 2mA, (Also USB Transceiver)
105 Input, 5V Tolerant, Pull-Down
DESCRIPTION
PC Card Address Input, Bits 0 to 9
PC Card Select, Low Byte
PC Card Select, High Byte
PC Card Data Bus, Bit 0 to 15
PC Card I/O Decode Confirmation
PC Card I/O Space Read
PC Card I/O Space Write
PC Card interrupt Request (I/O Mode) Card Ready
(Memory Mode)
PC Card Memory Attribute Space Output Enable
PC Card Attribute Space Select
Hardware Reset
PC Card Status Change
PC Card Not Ready (Force Host Wait State)
PC Card Memory Attribute Space Write Enable
USB, MBUS Address Bit 20, or I/O as PL5
USB, MBUS Address Bit 21, or I/O or I/O as PL6
Sense USB VBUS to Indicate Cable Attachment
TABLE 1. MEMORY INTERFACE PINS
PIN NAME
PIN NUMBER
PIN I/O TYPE
DESCRIPTION
MUBE- / MA0 /
MWEH-
72 CMOS TS Output, 2mA
MBUS Upper Byte Enable for x16 Memory; MBUS
Address Bit 0 (byte) for x8 Memory; High Byte Write
Enable for 2 x8 Memories
MA1-18
73-81, 84-92 CMOS TS Output, 2mA
MBUS Address Bits 1 to 18
PL4 43 CMOS BiDir, 2mA
MBUS Address Bit 19
PL5
12 CMOS BiDir, 2mA, 50K Pull Up
MBUS Address Bit 20 (See Note 1)
PL6 11 CMOS BiDir, 2mA
MBUS Address Bit 21 (See Note 1)
MLBE-
62 CMOS TS Output, 2mA, 50K Pull Up
MBUS Lower Byte Enable, or I/O as PM2
MOE-
70 CMOS TS Output, 2mA
Memory Output Enable
MWE- / MWEL-
71 CMOS TS Output, 2mA
Low (or only) Byte Memory Write Enable
RAMCS-
69 CMOS TS Output, 2mA
RAM Select
NVCS-
68 CMOS TS Output, 2mA
NV Memory Select
MD0-7
61-54
5V Tol, CMOS, BiDir, 2mA, 100K Pull Up
MBUS Low Data Byte, Bits 0 to 7
MD8-15
51-44
5V Tol, CMOS, BiDir, 2mA 50K Pull Down
MBUS High Data Byte, Bits 8 to 15
NOTE:
1. Not available if USB interface is used.
PIN NAME
PIN NUMBER
GENERAL PURPOSE PORT PINS
TXD
17
TXC
18
RXD
19
RXC
20
TABLE 2. GENERAL PURPOSE AND EEPROM PORT PINS
PIN I/O TYPE
DESCRIPTION OF FUNCTION
(IF OTHER THAN IO PORT)
CMOS BiDir, 2mA, 50K Pull Down
CMOS BiDir, 2mA
CMOS Input
CMOS Input
Transmit Data Out
Transmit Clock In/Out
Receive Data In
Receive Clock In
3


3Pages


HFA3842B 電子部品, 半導体
HFA3842B
Absolute Maximum Ratings
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.6V
Input, Output or I/O Voltage . . . . . . . . . . . . GND -0.5V to VCC +0.5V
ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Class 2
Operating Conditions
Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +3.3V
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . -40oC to 85oC
Thermal Information
Thermal Resistance (Typical, Note 3)
θJA (oC/W)
LQFP Package. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
50
Maximum Storage Temperature Range . . . . . . . . . . -65oC to 150oC
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . .100oC
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . . 300oC
(Lead Tips Only)
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE:
3. θJA is measured with the component mounted on a low effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
Electrical Specifications
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
Power Supply Current
ICCOP VCC = 3.6V, CLK Frequency 44MHz
-
Input Leakage Current
II VCC = Max, Input = 0V or VCC
-10
Output Leakage Current
IO VCC = Max, Input = 0V or VCC
-10
Logical One Input Voltage
VIH VCC = Max, Min
0.7VCC
Logical Zero Input Voltage
VIL VCC = Min, Max
-
Logical One Output Voltage
VOH
IOH = -1mA, VCC = Min
0.9VCC
Logical Zero Output Voltage
VOL
IOL = 2mA, VCC = Min
-
Input Capacitance
CIN
CLK Frequency 1MHz. All measurements
referenced to GND. TA = 25oC
-
Output Capacitance
COUT
CLK Frequency 1MHz. All measurements
referenced to GND. TA = 25oC
-
NOTE:
4. All values in this table have not been measured and are only estimates of the performance at this time.
AC Electrical Specifications
PARAMETER
CLOCK SIGNAL TIMING
OSC Clock Period (Typ. 44MHz)
High Width
Low Width
EXTERNAL MEMORY INTERFACE
MOE_Setup Time From Ramcs
MOE-Setup Time From MA (17.0)
MA(18-1 Address Hold from MOE- Rising Edge
RAMCS Hold from MOE_ Rising Edge
MD(15:0) Enable from MOE-Falling
MD(15:0) Disable from MOE-Rising Edge
EXTERNAL WRITE MEMORY INTERFACE
MA (18...0) Address Setup Time to MWE Falling Edge
RAMCS-Setup to MWE_
MA (17.0) Hold From MWE_Rising Edge
RAMCS_Hold From MWE_Rising Edge
MD (15.0) Setup to MWE_Rising
MD (15.0) Hold from MWE_Rising
SYNTHESIZER
SYNTHCLK (PK1) Period
SYNTHCLK (PK1) Width Hi
SYNTHCLK (PK1) Width Lo
SYNTHDATA (PK2) Hold Time from Falling Edge of SYNTHCLK (PK1)
SYNTHCLK (PK1) Falling Edge to SYNLE Inactive
SYMBOL
MIN
tCYC
tH1
tL1
tS1
tS2
tH1
tH2
tE1
tD1
tS3
tS4
tH2
tH3
tS5
tH4
tCYC
tH1
tL1
tD2
tD3
20
10
10
0
0
20
20
5
-
0
0
15
15
40
15
83
tCYC /2 - 10
tCYC /2 - 10
0
35
TYP
33
1
1
-
-
-
0.2
5
5
TYP
20.8
10.4
10.4
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
MAX
45
10
10
-
0.3VCC
-
0.1VCC
10
10
UNITS
mA
µA
µA
V
V
V
V
pF
pF
MAX
UNITS
200 ns
- ns
- ns
- ns
- ns
- ns
- ns
- ns
100 ns
- ns
- ns
- ns
- ns
- ns
- ns
4,000
tCYC/2 + 10
tCYC/2 + 10
-
-
ns
ns
ns
ns
ns
6

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共有リンク

Link :


部品番号部品説明メーカ
HFA3842

Wireless LAN Medium Access Controller

Intersil Corporation
Intersil Corporation
HFA3842B

PCMCIA/USB Wireless LAN Medium Access Controller

Intersil Corporation
Intersil Corporation
HFA3842IN

Wireless LAN Medium Access Controller

Intersil Corporation
Intersil Corporation
HFA3842IN96

Wireless LAN Medium Access Controller

Intersil Corporation
Intersil Corporation


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