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W78M64V-XSBX Dataheets PDF



Part Number W78M64V-XSBX
Manufacturers White Electronic Designs
Logo White Electronic Designs
Description Mx64 Flash 3.3V Page Mode Simultaneous Read/Write Operation Multi-Chip
Datasheet W78M64V-XSBX DatasheetW78M64V-XSBX Datasheet (PDF)

White Electronic Designs W78M64V-XSBX www.DataSheet4U.com 8Mx64 Flash 3.3V Page Mode Simultaneous Read/Write Operation Multi-Chip Package FEATURES Access Times of 70, 90, 100, 120ns Packaging • 159 PBGA, 13x22mm – 1.27mm pitch 1,000,000 Erase/Program Cycles per sector Page Mode • Page size is 8 words: Fast page read access from random locations within the page. Sector Architecture • Bank A (16Mb): 4Kw x 8 and 32 Kw x 31 • Bank B (48Mb): 32Kw x 96 • Bank C (48Mb): 32Kw x 96 • Bank D (16Mb): 4Kw.

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White Electronic Designs W78M64V-XSBX www.DataSheet4U.com 8Mx64 Flash 3.3V Page Mode Simultaneous Read/Write Operation Multi-Chip Package FEATURES Access Times of 70, 90, 100, 120ns Packaging • 159 PBGA, 13x22mm – 1.27mm pitch 1,000,000 Erase/Program Cycles per sector Page Mode • Page size is 8 words: Fast page read access from random locations within the page. Sector Architecture • Bank A (16Mb): 4Kw x 8 and 32 Kw x 31 • Bank B (48Mb): 32Kw x 96 • Bank C (48Mb): 32Kw x 96 • Bank D (16Mb): 4Kw x 8 and 3Kw x 31 Both top and bottom boot blocks Zero Power Operation Organized as 8Mx64, user configurable as 2x8Mx32 or 4x8Mx16 Commercial, Industrial and Military Temperature Ranges 3.3 Volt for read, erase and write operations Simultaneous read/write operations: • Data can be continuously read from one bank while executing erase/program functions in another bank • Zero latency between read and write operations Erase Suspend/Resume • Suspends erase operations to allow read or programming in other sectors of same bank Data Polling and Toggle Bits • Provides a software method of detecting the status of program or erase cycles * This product is subject to change without notice. Unlock Bypass Program command • Reduces overall programming time when issuing multiple program command sequences Ready/Busy# output (RY/BY#) • Hardware method for detecting program or erase cycle completion Hardware reset pin (RESET#) • Hardware method of resetting the internal state machine to the read mode WP#/ACC input pin • Write protect (WP#) function allows protection of two outermost boot sector, regardless of sector protect status • Acceleration (ACC) function accelerates program timing Persistent Sector Protection • A command sector protection method of locking combinations of individual sectors and sector groups to prevent program or erase operation within that sector Password Sector Protection or Cancellation • A sector protection method to lock combinations of individual sectors and sector groups to prevent program or erase operations within that sector using a user-defined 64-bit password. White Electronic Designs Corp. reserves the right to change products or specifications without notice. December 2005 Rev. 3 1 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com White Electronic Designs FIG 1: PIN CONFIGURATION FOR W78M64V-XSBX (TOP VIEW) W78M64V-XSBX www.DataSheet4U.com 1 A B C D E F G H J K L M N P R T VIO 2 GND 3 GND 4 GND 5 VCC 6 VIO 7 GND 8 GND 9 10 GND VCC PIN DESCRIPTION DQ0-63 A0-22 WE#1-4 CS#1-4 OE# RESET# WP#/ACC RY/BY# VCC VIO GND DNU Data Inputs/Outputs Address Inputs Write Enables Chip Selects Output Enable Hardware Reset Hardware Write Protection/Acceleration Ready/Busy Output Power Supply I/O Power Supply Ground Do Not Use GND DQ41 WE3# VIO DQ57 DNU WE4# VCC VIO VCC DQ33 DQ43 DQ45 DQ47 DQ49 DQ59 DQ61 DQ63 VCC VIO DQ40 DQ35 DQ37 DQ39 DQ56 DQ51 DQ53 DQ55 VIO VCC DQ32 DQ42 DQ44 DQ46 DQ48 DQ58 DQ60 DQ62 VCC GND CS3# DQ34 DQ36 DQ38 CS4# DQ50 DQ52 DQ54 GND GND OE# A0 A22 VCC A12 A16 A21 A20 GND GND A2 WP#/ACC A11 GND VIO A7 A10 A15 GND* GND A3 A6 A9 VCC GND A1 RESET# A13 GND GND A4 A17 RY/BY# GND A14 A5 A18 A8 GND BLOCK DIAGRAM GND DQ17 WE2# DQ29 DNU* DQ9 DQ4 WE1# A19 GND VIO DQ24 DQ19 DQ21 DQ31 DQ1 DQ11 DQ6 DQ15 VIO WE1# WE2# CS2# WE3# CS3# WE4# CS4# CS1# RY/BY# RESET# OE# A0-22 VCC DQ16 DQ26 DQ28 DQ23 DQ8 DQ3 DQ13 DQ7 VCC VIO CS2# DQ18 DQ20 DQ30 DQ0 DQ10 DQ5 DQ14 VIO VCC VCC DQ25 DQ27 DQ22 CS1# DQ2 DQ12 GND VCC 8M X 16 8M X 16 8M X 16 8M X 16 VIO GND GND GND VIO VCC GND GND GND VIO WP#/ACC * Ball L5 is reserved for A23 for future upgrades. DQ0-15 DQ16-31 DQ32-47 DQ48-63 White Electronic Designs Corp. reserves the right to change products or specifications without notice. December 2005 Rev. 3 2 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com White Electronic Designs GENERAL DESCRIPTION The W78M64V-XSBX is a 512Mb, 3.3 volt-only Page Mode and Simultaneous Read/Write Flash memory device. The device offers fast page access times allowing high speed microprocessors to operate without wait states. To eliminate bus contention the device has separate chip enable (CS#), write enable (WE#) and output enable (OE#) controls. Simultaneous Read/Write Operation with Zero Latency. The Simultaneous Read/Write architecture provides simultaneous operation by dividing the memory space into 4 banks, which can be considered to be four separate memory arrays as far as certain operations are concerned. The device can improve overall system performance by allowing a host system to program or erase in one bank, then immediately and simultaneously read from another bank with zero latency (with two simultaneous operations operating at any one time). This releases the system from waiting for the completion of a program or erase operation, greatly improving sys.


HYB18H256321AF-16 W78M64V-XSBX K7P321888M


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