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W89C35DG, W89C840AF, W89C871F

Table of contents:
Info of W89C35DG
Info of W89C840AF
Info of W89C871F

W89C35DG, W89C840AF, W89C871F Selling Leads, Datasheet

MFG:Winbond Package Cooled:LQFP100 D/C:06+

W89C35DG, W89C840AF, W89C871F Datasheet download

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Part Number: W89C35DG

MFG: Winbond

Package Cooled: LQFP100

D/C: 06+

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W89C840AF General Description

W89C840AF is a highly integrated Ethernet LAN controller for both 100BaseT and 10BaseT Ethernet. It provides a host bus interface complying with the PCI local bus specification revision 2.1, and the MII interface complying with the IEEE802.3u standard for easily implementing an Ethernet LAN adapter. The built-in 2K bytes transmit FIFO and 4K bytes receive FIFO, controlled by the on-chip bus master, are designed for improving network performance and reducing the host bus utilitzation.

The on-chip DMA controller handles the data transfer between the host memory and the FIFOs. The data received from network are queued into the receive FIFO and then, directly moved into the host memory through the PCI bus. On the other hand, the transmitted data are fetched from the host memory and directly queued into the transmit FIFO. No extra on-board memory is needed for data buffering during the data transceiving operation.

For featuring the specifications of PC97/98, W89C840AF implements power management functinos which are compliant with Advanced Configuration and Power Interface ( ACPI) specification Rev. 1.0, PCI Power Management Interface specification Rev. 1.0, and Network Device Class Power Management Reference specification V1.0a as well as remote wakeup function based on the OnNow initiative and the ACPI specification requirement of PC 97 and PC 98.

Many versatile registers, total 48 inside, including host bus control registers, direct memory access(DMA) control registers, media access control registers(MAC), power management control/status registers and signature identification registers, are implemented for system configuring and control. All of these long word accessible registers perform the status report and the precisely control on the operation of transmit and receive. It also provides an extra channel for the on-line application program to update the on-board expansion ROM device in some specific application environment.

W89C840AF Maximum Ratings

Symbol	Parameter	Minimum	Maximum	Unit
T_A	Operating Temperature	0	70	C
T_S	Storage Temperature	-55	150	C
V_DD	Supply Voltage	-0.5	7.0	V
V_IN	Input Voltage	V_SS-0.5	V_DD+0.5	V
V_OUT	Output Voltage	V_SS-0.5	V_DD+0.5	V
T_L	Lead Temperature (Soldering 10 seconds maximum)		250	C

W89C840AF Features

Complies with IEEE 802.3, 802.3u, ANSI 8802-3 and Ethernet standards
Supports PCI bus master mode for DMA operation, fully complying with PCI 2.1 standard
Compliant with APCI R1.0, PCI power management R1.0 and Network device Class Power management Reference specification V1.0a
Supports remote wakeup function
Both half duplex and full duplex available for 10/100M operation
Flexible data structure for host compatibility and system performance
Supports 25 to 33 Mhz PCI clock speed
Supports full MII management function
Provides EEPROM and flash memory on-board programming function
Supports both big and little endian byte ordering for descriptor and buffer
Flexible address filtering modes
-- 64-bit hash-table and one perfect address
-- all multicast and promiscuous
A boot ROM interface, capable of supporting up to 256KB
Supports automatic loading configuration register
Internal and external loopback mode for diagnostic

W89C840AF Connection Diagram

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