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M50FLW080BN5P Datasheet(PDF) 1 Page - STMicroelectronics |
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M50FLW080BN5P Datasheet(HTML) 1 Page - STMicroelectronics |
1 / 64 page October 2006 Rev 4 1/64 1 M50FLW080A M50FLW080B 8-Mbit (13 x 64-Kbyte Blocks + 3 × 16 × 4 Kbyte Sectors) 3-V supply, Firmware Hub / low-pin-count Flash memory Feature summary ■ Flash memory – Compatible with either the LPC interface or the FWH interface (Intel Spec rev1.1) used in PC BIOS applications – 5-signal communication interface supporting Read and Write operations – 5 additional general-purpose inputs for platform design flexibility – Synchronized with 33 MHz PCI clock ■ 16 blocks of 64 Kbytes – 13 blocks of 64 Kbytes each – 3 blocks, subdivided into 16 uniform sectors of 4 Kbytes each Two blocks at the top and one at the bottom (M50FLW080A) One block at the top and two at the bottom (M50FLW080B) ■ Enhanced security – Hardware Write Protect pins for block protection – Register-based Read and Write Protection – Individual Lock Register for each 4 KByte sector ■ Supply voltage –VCC = 3.0 to 3.6 V for Program, Erase and Read operations –VPP = 12 V for Fast Program and Erase ■ Two interfaces – Auto Detection of Firmware Hub (FWH) or Low Pin Count (LPC) memory cycles for embedded operation with PC chipsets – Address/Address Multiplexed (A/A Mux) interface for programming equipment compatibility. ■ Programming time: 10 µs typical ■ Program/Erase Controller – Embedded Program and Erase algorithms – Status Register bits ■ Program/Erase Suspend – Read other Blocks/Sectors during Program Suspend – Program other Blocks/Sectors during Erase Suspend ■ ELectronic signature – Manufacturer Code: 20h – Device Code (M50FLW080A): 80h – Device Code (M50FLW080B): 81h ■ Packages – ECOPACK® (RoHS compliant) TSOP32 (NB) 8 × 14 mm PLCC32 (K) TSOP40 (N) 10 × 20 mm www.st.com |
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