W29C040T-70B Winbond, W29C040T-70B Datasheet
W29C040T-70B
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W29C040T-70B Summary of contents
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GENERAL DESCRIPTION The W29C040 is a 4-megabit, 5-volt only CMOS page mode Flash Memory organized as 512K bits. The device can be written (erased and programmed) in-system with a standard 5V power supply. A 12-volt V is not required. The ...
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PIN CONFIGURATIONS 1 32 A18 2 31 A16 3 30 A15 A12 32-pin 8 DIP ...
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FUNCTIONAL DESCRIPTION Read Mode The read operation of the W29C040 is controlled by #CE and #OE, both Chip of which have to be low for the host to obtain data from the outputs. #CE is used for device selection. When ...
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For information about specific codes, see the Command Codes for Software Data Protection in the Table of Operating Modes. For information about timing waveforms, see the timing diagrams below. Hardware Data Protection The integrity of the data stored in ...
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When the write cycle is completed, this toggling between 0's and 1's will stop. The device is then ready for the next operation. See Toggle Bit Timing Diagram. Product Identification The product ID operation outputs the manufacturer code ...
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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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... The device returns to standard operation mode. (7) This product supports both the JEDEC standard 3 bytes command code sequence and original 6 byte command code sequence. For new designs, Winbond recommends that the 3 bytes command code sequence be used. IDENTIFICATION/BOOT BLOCK LOCKOUT DATA ...
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... W ait for Notes for boot block lockout enable: 1. Data Format DQ0 (Hex) 2. Address Format: A14 A0 (Hex you have any questions about this command sequence, please contact the local distributor or Winbond Electronics Corp. ADDRESS DATA 5555H AAH 2AAAH 55H ...
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Data Polling Acquisition Flow Data Toggle Acquisition Flow Data Polling Byte Program Initiated Read DQ7 No Is DQ7= true data? Yes Write Completed Toggle Bit Byte Program/ Sector Erase Initiated Read byte Read same byte No Does DQ6 match? Yes ...
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DC CHARACTERISTICS Absolute Maximum Ratings PARAMETER Power Supply Voltage Operating Temperature Storage Temperature D.C. Voltage on Any Pin to Ground Potential Except A9 Transient Voltage (<20 nS) on Any Pin to Ground Potential Voltage on A9 and ...
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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 ( for normal products, - for W29C040xxxxK PARAMETER Read Cycle Time Chip Enable Access Time ...
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AC Characteristics, continued #DATA Polling Characteristics PARAMETER Data Hold Time #OE Hold Time (2) #OE to 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 T Address A18-0 #CE #OE #WE DQ7-0 #CE Controlled Write Cycle Timing Diagram Address A18-0 #CE #OE #WE High Z DQ7 OES ...
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Timing Waveforms, continued Page Write Cycle Timing Diagram Address A18-0 DQ7-0 #CE #OE #WE #DATA Polling Timing Diagram Address A18-0 #WE # DQ7 T BLC T WPH T WP Byte 0 Byte 1 Byte 2 OEH ...
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Timing Waveforms, continued Toggle Bit Timing Diagram #WE #CE T OEH # DQ6 Page Write Timing Diagram Software Data Protection Mode software data protection mode Address A18-0 5555 DQ7-0 AA #CE # #WE T SW0 T ...
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Timing Waveforms, continued Reset Software Data Protection Timing Diagram Address A18-0 5555 DQ7-0 #CE #OE T #WE SW0 5 Volt-only Software Chip Erase Timing Diagram Address A18-0 5555 DQ7-0 #CE #OE T #WE SW0 Six-byte sequence for resetting software data ...
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... W29C040-90 90 W29C040-12 120 W29C040T-90 90 W29C040T-12 120 W29C040P-90 90 W29C040P-12 120 W29C040-90N 90 W29C040-12N 120 W29C040T-90N 90 W29C040T-12N 120 W29C040P-90N 90 W29C040P-12N 120 W29C040-90B 90 W29C040T-70B 70 W29C040T-90B 90 W29C040P-70B 70 W29C040P-90B 90 W29C040-90BN 90 W29C040T70BN 70 W29C040T90BN 90 W29C040P70BN 70 W29C040P90BN 90 W29C040P-70K 70 W29C040P-90K 90 W29C040T-70K 70 W29C040T-90K 90 Notes: 1. Winbond reserves the right to make changes to its products without prior notice. ...
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... HOW TO READ THE TOP MARKING Example: The top marking of 32-pin TSOP W29C040T-90 W29C040T-90 2138977A-A12 149OBSA st 1 line: winbond logo nd 2 line: the part number: W29C040T- line: the lot number th 4 line: the tracking code: 149 149: Packages made in ’01, week 49 O: Assembly house ID: A means ASE, O means OSE, ...etc revision ...
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PACKAGE DIMENSIONS 32-pin P-DIP 32-pin PLCC Seating Plane ...
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Package Dimensions, continued 32-pin TSOP 0.10(0.004 W29C040 Dimension In Inches Dimension In mm Symbol Min. Nom. Max. Min. Nom. Max. ...
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VERSION HISTORY VERSION DATE A3 June 1998 A4 Oct. 1998 A5 May 1999 Nov. 2000 April 2001 A8 9/12/2001 A9 May 6, 2002 PAGE 4 Correct Power-on Delay from 5 ...
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... All the trade marks of products and companies mentioned in this data sheet belong to their respective owners. 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. 378 Kwun Tong Rd., Kowloon, Hong Kong TEL: 852-27513100 FAX: 852-27552064 ...