W29C040P-12 WINBOND [Winbond], W29C040P-12 Datasheet
W29C040P-12
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W29C040P-12 Summary of contents
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... The unique cell architecture of the W29C040 results in fast write (erase/ PP program) operations with extremely low current consumption compared to other comparable 5-volt flash memory products. The device can also be written (erased and programmed) by using standard EPROM programmers. FEATURES Single 5-volt write (erase and program) ...
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PIN CONFIGURATIONS 32-pin 8 A4 PLCC ...
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... In the internal write cycle, all data in the page buffers, i.e., 256 bytes of data, are written simultaneously into the memory array. The typical write (erase/program) time is 5 mS. The entire memory array can be written in 10.4 seconds. Before the completion of the internal write cycle, the host is free to perform other tasks such as fetching data from other locations in the system to prepare to write the next page ...
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... There are two boot blocks (16K bytes each) in this device, which can be used to store boot code. One of them is located in the first 16K bytes and the other is located in the last 16K bytes of the memory. The first 16K or last 16K of the memory can be set as a boot block by using a seven-byte command sequence ...
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Toggle Bit (DQ6)- Write Status Detection In addition to data polling, the W29C040 provides another method for determining the end of a write cycle. During the internal write cycle, any consecutive attempts to read DQ6 will produce alternating 0's and ...
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Command Codes for Software Data Protection BYTE SEQUENCE 0 Write 1 Write 2 Write 3 Write 4 Write 5 Write Software Data Protection Acquisition Flow (Optional page-load operation) Notes for software program code: Data Format: DQ7 DQ0 (Hex) Address Format: ...
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Command Codes for Software Chip Erase BYTE SEQUENCE 0 Write 1 Write 2 Write 3 Write 4 Write 5 Write Software Chip Erase Acquisition Flow Notes for software chip erase: Data Format: DQ7 DQ0 (Hex) Address Format: A14 A0 (Hex) ...
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Command Codes for Product Identification and Boot Block Lockout Detection BYTE ALTERNATE PRODUCT (7) SEQUENCE IDENTIFICATION/BOOT BLOCK LOCKOUT DETECTION ENTRY ADDRESS 0 Write 5555 1 Write 2AAA 2 Write 5555 3 Write - 4 Write - 5 Write - Pause ...
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Command Codes for Boot Block Lockout Enable BYTE SEQUENCE BOOT BLOCK LOCKOUT FEATURE SET ON FIRST 16K ADDRESS BOOT BLOCK 0 Write 1 Write 2 Write 3 Write 4 Write 5 Write 6 Write Boot Block Lockout Enable Acquisition Flow ...
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DC CHARACTERISTICS Absolute Maximum Ratings PARAMETER Power Supply Voltage to Vss Potential Operating Temperature Storage Temperature D.C. Voltage on Any Pin to Ground Potential Except A9 Transient Voltage (< Any Pin to Ground Potential Voltage on A9 ...
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Power-up Timing PARAMETER Power-up to Read Operation Power-up to Write Operation CAPACITANCE (V = 5.0V MHz PARAMETER DQ Pin Capacitance Input Pin Capacitance AC CHARACTERISTICS AC Test Conditions (V = 5.0V ...
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AC Characteristics, continued Read Cycle Timing Parameters (V = 5.0V 10 for 90,120 and 150 nS PARAMETER Read Cycle Time Chip Enable Access Time Address Access Time Output Enable Access Time CE High to High-Z Output OE High ...
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AC Characteristics, continued DATA Polling Characteristics PARAMETER Data Hold Time OE Hold Time ( Output Delay Write Recovery Time Notes: (1) These parameters are characterized and not 100% tested. (2) See T spec in A.C. Read Cycle Timing ...
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Timing Waveforms, continued WE Controlled Write Cycle Timing Diagram Address A18 DQ7-0 CE Controlled Write Cycle Timing Diagram Address A18 High Z DQ7 OES ...
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Timing Waveforms, continued Page Write Cycle Timing Diagram Address A18-0 DQ7 DATA Polling Timing Diagram Address A18 DQ7 T BLC T WPH T WP Byte 1 Byte 0 Byte 2 T OEH DH ...
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Timing Waveforms, continued Toggle Bit Timing Diagram OEH DQ6 Page Write Timing Diagram Software Data Protection Mode software data protection mode Address A18-0 5555 DQ7 SW0 T OE ...
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Timing Waveforms, continued Reset Software Data Protection Timing Diagram Address A18-0 5555 DQ7 Volt-only Software Chip Erase Timing Diagram Address A18-0 5555 DQ7 Six-byte sequence for resetting software data protection mode 5555 5555 ...
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... W29C040T-90B 90 W29C040T-12B 120 W29C040P-90B 90 W29C040P-12B 120 Notes: 1. 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 product failure. ...
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PACKAGE DIMENSIONS 32-pin PLCC Seating Plane 40-pin TSOP 0.10 (0.004 ...
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... Rm. 803, World Trade Square, Tower II, 123 Hoi Bun Rd., Kwun Tong, Kowloon, Hong Kong TEL: 852-27513100 FAX: 852-27552064 - 20 - W29C040 DESCRIPTION Winbond Electronics North America Corp. Winbond Memory Lab. Winbond Microelectronics Corp. Winbond Systems Lab. 2727 N. First Street, San Jose, CA 95134, U.S.A. TEL: 408-9436666 FAX: 408-5441798 ...