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AT49LW080 Datasheet

Part Number AT49LW080
Manufacturers ATMEL Corporation
Logo ATMEL Corporation
Description 8-megabit and 4-megabit Firmware Hub Flash Memory
Datasheet AT49LW080 DatasheetAT49LW080 Datasheet (PDF)

Features • Low Pin Count (LPC) BIOS Device • Functions as Firmware Hub for Intel 810, 810E, 820, 840 Chipsets • 8M or 4M Bits of Flash Memory for Platform Code/Data Storage – Uniform, 64-Kbyte Memory Sectors – Available in 8M Bits (AT49LW080) and 4M Bits (AT49LW040) – Automated Byte-program and Sector-erase Operations Two Configurable Interfaces – Firmware Hub (FWH) Interface for In-System Operation – Address/Address Multiplexed (A/A Mux) Interface for Programming during Manufacturing Firmware H.

  AT49LW080   AT49LW080






8-megabit and 4-megabit Firmware Hub Flash Memory

Features • Low Pin Count (LPC) BIOS Device • Functions as Firmware Hub for Intel 810, 810E, 820, 840 Chipsets • 8M or 4M Bits of Flash Memory for Platform Code/Data Storage – Uniform, 64-Kbyte Memory Sectors – Available in 8M Bits (AT49LW080) and 4M Bits (AT49LW040) – Automated Byte-program and Sector-erase Operations Two Configurable Interfaces – Firmware Hub (FWH) Interface for In-System Operation – Address/Address Multiplexed (A/A Mux) Interface for Programming during Manufacturing Firmware Hub Hardware Interface Mode – 5-signal Communication Interface Supporting x8 Reads and Writes – Read and Write Protection for Each Sector Using Software-controlled Registers – Two Hardware Write-protect Pins: One for the Top Boot Sector, One for All Other Sectors – Five General-purpose Inputs, GPIs, for Platform Design Flexibility – Operates with 33 MHz PCI Clock and 3.3V I/O Address/Address Multiplexed (A/A Mux) Interface – 11-pin Multiplexed Address and 8-pin Data Interface – Supports Fast On-board or Out-of-system Programming Power Supply Specifications – VCC: 3.3V ± 0.3V – VPP: 3.3V and 12V for Fast Programming Industry-standard Packages – (40-lead TSOP or 32-lead PLCC) • • 8-megabit and 4-megabit Firmware Hub Flash Memory AT49LW080 AT49LW040 • • • Description The AT49LW080 and the AT49LW040 are Flash memory devices designed to be compatible with the Intel 82802AC and the Intel 82802AB Firmware Hub (FWH) devices for PC-Bios Application. A feature of the AT49LW080/040 is the non.


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