W29C040-90Z Winbond Electronics, W29C040-90Z Datasheet
W29C040-90Z
Specifications of W29C040-90Z
Available stocks
Related parts for W29C040-90Z
W29C040-90Z Summary of contents
Page 1
... Command Codes for Software Chip Erase .................................................................... CHARACTERISTICS.......................................................................................................... 13 9. CAPACITANCE......................................................................................................................... 14 10. AC CHARACTERISTICS .......................................................................................................... 15 11. TIMING WAVEFORMS ............................................................................................................. 18 12. ORDERING INFORMATION .................................................................................................... 23 13. HOW TO READ THE TOP MARKING...................................................................................... 24 14. PACKAGE DIMENSIONS ......................................................................................................... 25 15. VERSION HISTORY ................................................................................................................. 27 512K × 8 CMOS FLASH MEMORY Publication Release Date: Aug. 14, 2006 - 1 - W29C040 Revision A11 ...
Page 2
... GENERAL DESCRIPTION The W29C040 is a 4-megabit, 5-volt only CMOS page mode Flash Memory organized as 512K × 8 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 unique cell architecture of the W29C040 results in fast write (erase/ ...
Page 3
... DQ1 22 #WE 21 DQ0 W29C040 OUTPUT CONTROL BUFFER 16K Byte Boot Block (Optional) CORE DECODER ARRAY 16K Byte Boot Block (Optional) PIN NAME Address Inputs Data Inputs/Outputs Chip Enable Output Enable Write Enable Power Supply Ground Publication Release Date: Aug. 14, 2006 Revision A11 DQ0 ...
Page 4
... 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 #CE is high, the chip is de-selected and only standby power will be consumed. #OE is the output control and is used to gate data from the output pins ...
Page 5
... Hardware Data Protection The integrity of the data stored in the W29C040 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 write and read operation are inhibited when ...
Page 6
... Data Polling (DQ7)- Write Status Detection The W29C040 includes a data polling feature to indicate the end of a write cycle. When the W29C040 is in the internal write cycle, any attempt to read DQ7 of the last byte loaded during the page/byte-load cycle will receive the complement of the true data. Once the write cycle is completed. DQ7 will show the true data ...
Page 7
... TABLE OF OPERATING MODES 7.1 Operating Mode Selection Operating Range 70° C for normal products, -40 to 85° C for W29C040xxxxK, V MODE #CE Read V IL Write V IL Standby V IH Write Inhibit X X Output Disable X Product 7.2 Command Codes for Software Data Protection BYTE SEQUENCE 0 Write 1 Write ...
Page 8
... Load data A0 to address 5555 Sequentially load up to 256 bytes of page data W ait for toggle/polling com pleted Exit - 8 - W29C040 Load data AA to address 5555 Load data 55 to address 2AAA Load data 80 to address 5555 Load data AA to address 5555 ...
Page 9
... Load data 80 to address 5555 Load data AA to address 5555 Load data 55 to address 2AAA Load data 10 to address 5555 W ait for toggle/polling completed Exit Publication Release Date: Aug. 14, 2006 - 9 - W29C040 DATA AAH 55H 80H AAH 55H 10H Revision A11 ...
Page 10
... Read address = 00000 data = DA (2) Read address = 00001 data = 46 (4) Read address = 00002 data = FF/FE (5) Read address = 7FFF2 data = FF/FE ; device code is read for W29C040 SOFTWARE PRODUCT IDENTIFICATION/BOOT BLOCK LOCKOUT DETECTION EXIT ADDRESS DATA 5555H AAH 2AAAH 55H 5555H F0H - - - ...
Page 11
... Load data 40 Load data address 5555 Load data 00 Load data address 7FFFF W ait for W29C040 BOOT BLOCK LOCKOUT FEATURE SET ON LAST 16K ADDRESS BOOT BLOCK ADDRESS DATA 5555H AAH 2AAAH 55H 5555H 80H 5555H AAH 2AAAH 55H 5555H ...
Page 12
... 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 Write Completed - 12 - W29C040 ...
Page 13
... Voltage on A9 and #OE Pin to Ground Potential Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the device. Operating Characteristics = 5.0V ± 0V 70° C for normal products, -40 to 85° C for W29C040xxxxK ) PARAMETER SYM. Power Supply Current ...
Page 14
... Power-up Timing PARAMETER Power-up to Read Operation Power-up to Write Operation 9. CAPACITANCE (V = 5.0V 25° MHz PARAMETER DQ Pin Capacitance Input Pin Capacitance SYMBOL T . READ WRITE PU SYMBOL CONDITIONS W29C040 TYPICAL UNIT μS 100 10 mS MAX. UNIT ...
Page 15
... Input Rise/Fall Time Input/Output Timing Level Output Load AC Test Load and Waveform Read Cycle Timing Parameters = 5.0V ± 0V 70° C for normal products, -40 to 85° C for W29C040xxxxK PARAMETER Read Cycle Time Chip Enable Access Time Address Access Time Output Enable Access Time ...
Page 16
... 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 Parameters OE SYM. MIN OES T 0 OEH 100 WPH BLC IH IL (1) SYMBOL MIN OEH W29C040 TYP. MAX. UNIT - μS - 200 TYP. MAX. UNIT - - ...
Page 17
... Output Delay #OE High Pulse Write Recovery Time Notes: (1) These parameters are characterized and not 100% tested. (2) See T spec in A.C. Read Cycle Timing Parameters OE (1) SYMBOL MIN OEH 150 OEHP W29C040 TYP. MAX. UNIT - - Publication Release Date: Aug. 14, 2006 Revision A11 ...
Page 18
... TIMING WAVEFORMS Read Cycle Timing Diagram Address A18-0 #CE # #WE High-Z DQ7-0 #WE Controlled Write Cycle Timing Diagram T Address A18-0 #CE #OE #WE DQ7 Data Valid OES Data Valid - 18 - W29C040 T OHZ CHZ High-Z Data Valid OEH T WPH T DH Internal write starts ...
Page 19
... High Z DQ7-0 Page Write Cycle Timing Diagram Address A18-0 DQ7-0 #CE #OE # OES T OEH Data Valid BLC T WPH T WP Byte 1 Byte 0 Byte W29C040 T WC WPH Internal Write Starts T WC Byte N-1 Byte N Internal Write Start Publication Release Date: Aug. 14, 2006 Revision A11 ...
Page 20
... Polling Timing Diagram Address A18-0 #WE # DQ7 Toggle Bit Timing Diagram #WE #CE T OEH # DQ6 OEH HIGH HIGH W29C040 ...
Page 21
... Three-byte sequence for software data protection mode Address A18-0 5555 DQ7-0 AA #CE # #WE WPH SW0 Byte/page load cycle starts 2AAA 5555 BLC SW2 Byte 0 Byte N-1 SW1 - 21 - W29C040 T WC Byte N (Last Byte) Internal write starts Publication Release Date: Aug. 14, 2006 Revision A11 ...
Page 22
... AA T BLC WP T WPH SW2 SW3 SW1 Six-byte code for 5V-only software chip erase 5555 5555 2AAA 2AAA BLC T WPH SW2 SW3 SW4 SW1 - 22 - W29C040 T WC 2AAA 5555 55 20 SW4 SW5 Internal programming starts T WC 5555 55 10 SW5 Internal erasing starts ...
Page 23
... W29C040P-70K 70 W29C040P-90K 90 W29C040T-70K 70 W29C040T-90K 90 W29C040-90Z 90 W29C040P-90Z 90 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. ...
Page 24
... 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. ...
Page 25
... Notes Dimensions D & not include interlead flash. 2. Dimension b1 does not include dambar protrusion/intrusion. 3. Controlling dimension: Inches General appearance spec. should be based on final W29C040 Dimension in inches Dimension in mm Symbol Min. Nom. Max. Min. Nom. Max. A 5.33 0.210 A 0.010 0. 0.150 0.155 0.160 3.81 3 ...
Page 26
... TSOP 0.10(0.004) b θ W29C040 Dimension In Inches Dimension In mm Symbol Min. Nom. Min. Nom. Max. Max 1.20 0.047 0.002 0.006 0.05 0. 0.95 0.037 0.039 0.041 1.00 1. 0.007 0.008 0.17 0.20 0.23 0.009 c 0.005 0.006 0.12 0.15 0.17 0.007 D 0.720 0.724 18.30 18 ...
Page 27
... Correct Command Codes and Acquisition Flow for Software Product Identification and Boot Block Lockout Detection 20 ADD HOW TO READ THE TOP MARKING 24 Add Important Notice 22 Add lead free part W29C040-90Z and W29C040P-90Z - 27 - W29C040 DESCRIPTION PLCC/TSOP Publication Release Date: Aug. 14, 2006 Revision A11 ...
Page 28
... Winbond products could result or lead to a situation wherein personal injury, death or severe property or environmental damage could occur. Winbond customers using or selling these products for use in such applications their own risk and agree to fully indemnify Winbond for any damages resulting from such improper use or sales. Important Notice - 28 - W29C040 ...