w29c512a Winbond Electronics Corp America, w29c512a Datasheet
w29c512a
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w29c512a Summary of contents
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... GENERAL DESCRIPTION The W29C512A is a 512K bit, 5-volt only CMOS flash memory organized as 64K can be programmed and erased in-system with a standard 5V power supply. A 12-volt V required. The unique cell architecture of the W29C512A results in fast program/erase operations with extremely low current consumption (compared to other comparable 5-volt flash memory products). The device can also be programmed and erased using standard EPROM programmers ...
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... DQ0 Vss 24 DQ2 23 22 DQ1 #CE DQ0 # #WE V Vss W29C512A DQ0 OUTPUT CONTROL BUFFER DQ7 A0 CORE . DECODER ARRAY . A15 PIN NAME Address Inputs A15 Data Inputs/Outputs DQ7 Chip Enable Output Enable Write Enable Power Supply ...
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... Refer to the timing waveforms for further details. Page Write Mode The W29C512A is programmed on a page basis. Every page contains 128 bytes of data byte of data within a page changed, data for the entire page must be loaded into the device. Any byte that is not loaded will be erased to " ...
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... Hardware Data Protection The integrity of the data stored in the W29C512A is also hardware protected in the following ways: (1) Noise/Glitch Protection: A #WE pulse of less than duration will not initiate a write cycle. (2) V Power Up/Down Detection: The programming and read operation are inhibited when V DD less than 2 ...
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... W29C512A = 0V 12V) HH PINS DQ. Dout Din High Z High Z/D OUT High Z/D OUT High Manufacturer Code ; (Hex) Device Code ; (Hex) ...
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... Load data AA to address 5555 Load data 55 to address 2AAA Load data A0 to address 5555 Sequentially load up to 128 bytes operation) of page data Pause 10 mS Exit - 6 - W29C512A TO DISABLE PROTECTION ADDRESS DATA 5555H AAH 2AAAH 55H 5555H 80H 5555H AAH 2AAAH 55H 5555H 20H ...
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... Load data 55 to address 2AAA Load data 80 to address 5555 Load data AA to address 5555 Load data 55 to address 2AAA Load data 10 to address 5555 Pause 50 mS Exit Publication Release Date: February 5, 2002 - 7 - W29C512A DATA AAH 55H 80H AAH 55H 10H Revision A2 ...
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... Pause 10 S Product Identification Mode (2,3) Product Identification Exit (1) Read address = 0 data = DA Read address = 1 data = C8 A0 (Hex). ; device code is read for W29C512A SOFTWARE PRODUCT IDENTIFICATION EXIT ADDRESS DATA 5555H AAH 2AAAH 55H 5555H F0H - - - - - ...
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... IH Other inputs = # -0.3V, all I/Os open DD Other inputs = V -0.3V /Vss Vss Vss 2 -0 -100 4. W29C512A RATING -0 +70 -65 to +150 -0 +1 +1.0 DD -0.5 to 12.5 LIMITS MIN. TYP. MAX 100 - - 0.8 2.0 - ...
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... SYMBOL CONDITIONS I/O I 1.5V/1.5V 1 TTL Gate and C +5V 1.8 Kohm D OUT (For 90 nS/120 nS) 100 (For 70 nS) 1.3 Kohm Input Output 3V 1.5V 1.5V 0V Test Point Test Point - 10 - W29C512A TYPICAL UNIT 100 MAX. UNIT CONDITIONS = 100 pF ...
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... OES T 0 OEH 100 WPH BLC . Publication Release Date: February 5, 2002 - 11 - W29C512A W29C512A-90 UNIT MIN. MAX TYP. MAX. UNIT - ...
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... These parameters are characterized and not 100% tested. (2) See T spec in A.C. Read Cycle Timing Parameters OE (1) SYMBOL MIN OEH (1) SYMBOL MIN OEH 150 OEHP W29C512A TYP. MAX. UNIT - - TYP. MAX. UNIT - - ...
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... Controlled Write Cycle Timing Diagram T AS Address A15-0 #CE T #OE #WE DQ7 Data Valid OES Data Valid - 13 - W29C512A T OHZ CHZ Data Valid OEH T WPH T DH Internal write starts Publication Release Date: February 5, 2002 Revision A2 High-Z ...
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... Controlled Write Cycle Timing Diagram Address A15-0 #OE High Z DQ7-0 Page Write Cycle Timing Diagram Address A15-0 DQ7-0 #CE #OE # OES DS T BLC WPH Byte 0 Byte 1 Byte W29C512A WC T CPH OEH T DH Internal write starts T WC Byte N-1 Byte N Internal write starts ...
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... Timing Waveforms, continued #DATA Polling Timing Diagram Address A15-0 #WE #CE T OEH # DQ7 Toggle Bit Timing Diagram #WE #CE T OEH # DQ6 HIGH HIGH-Z Publication Release Date: February 5, 2002 - 15 - W29C512A Revision A2 ...
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... WPH Word 0 SW1 SW2 Six-byte sequence for resetting software data protection mode 5555 5555 2AAA BLC T WPH SW2 SW3 SW1 - 16 - W29C512A T WC Word N Word N-1 (last word) Internal write starts T WC 2AAA 5555 55 20 SW4 SW5 Internal programming starts ...
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... Address A15-0 5555 DQ7-0 #CE #OE T #WE SW0 Six-byte code for 5V-only software chip erase 2AAA 5555 5555 BLC T WPH SW2 SW3 SW1 - 17 - W29C512A T WC 5555 2AAA 55 10 SW5 SW4 Internal programming starts Publication Release Date: February 5, 2002 Revision A2 ...
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... Winbond reserves the right to make changes to its products without prior notice. 2. Purchasers are responsible for performing appropriate quality assurance testing on products intended for use in applications where personal injury might occur as a consequence of HOW TO READ THE TOP MARKING Example: The top marking of 32-pin TSOP W29C512AT-90 W29C512AT-90 2138977A-A12 149OBRA ...
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... Publication Release Date: February 5, 2002 - 19 - W29C512A Dimension In mm Dimension In Inches Symbol Min. Nom. Max. Min. Nom. Max. A 0.140 3.56 A 0.020 0. 0.105 0.110 0.115 2.67 2.80 2. 0.026 0.032 0.66 0.81 0.028 ...
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... TEL: 1-408-9436666 FAX: 1-408-5441798 Winbond Electronics Corporation Japan 7F Daini-ueno BLDG, 3-7-18 Shinyokohama Kohoku-ku, Yokohama, 222-0033 TEL: 81-45-4781881 FAX: 81-45-4781800 - 20 - W29C512A DESCRIPTION Winbond Electronics (Shanghai) Ltd. 27F, 2299 Yan An W. Rd. Shanghai, 200336 China TEL: 86-21-62365999 FAX: 86-21-62365998 Winbond Electronics (H.K.) Ltd. Unit 9-15, 22F, Millennium City, No ...