w39l040p-90k Winbond Electronics Corp America, w39l040p-90k Datasheet
w39l040p-90k
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w39l040p-90k Summary of contents
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... GENERAL DESCRIPTION The W39L040 is a 4Mbit, 3.3-volt only CMOS flash memory organized as 512K × 8 bits. For flexible erase capability, the 4Mbits of data are divided into 8 uniform sectors of 64 Kbytes, which are composed of 16 smaller even pages with 4 Kbytes. The byte-wide (× 8) data appears on DQ7 − DQ0. ...
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PIN CONFIGURATIONS 32L ...
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FUNCTIONAL DESCRIPTION Device Bus Operation Read Mode The read operation of the W39L040 is controlled by #CE and #OE, both of which have to be low for the host to obtain data from the outputs. #CE is used for ...
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The manufacturer and device codes may also be read via the command register, for instance, when the W39L040 is erased or programmed in a system without access to high voltage on the A9 pin. The command sequence is illustrated in ...
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... Refer to the AC Read Characteristics and Waveforms for the specific timing parameters. Auto-select Command Flash memories are intended for use in applications where the local CPU can alter memory contents. As such, manufacture and device codes must be accessible while the device resides in the target system ...
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Algorithm. Upon executing the algorithm, the system is not required to provide further controls or timings. The device will automatically provide adequate internally generated program pulses and verify the programmed cell margin. The automatic programming operation is completed when the ...
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Write Operation Status DQ7: Data Polling The W39L040 device features Data Polling as a method to indicate to the host that the embedded algorithms are in progress or completed. During the Embedded Program Algorithm, an attempt to read the device ...
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Table of Operating Modes Device Bus Operations = 12 ±0.5V MODE Read Write Standby Write Inhibit Output Disable Auto select Manufacturers ID Auto select Device ID Auto-select Codes (High Voltage Method ±0.5V DESCRIPTION Manufacturer ...
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Command Definitions COMMAND NO. OF 1ST CYCLE (1) DESCRIPTION Cycles Addr. Read Chip Erase 6 5555 AA Sector Erase 6 5555 AA Page Erase 6 5555 AA Byte Program 4 5555 AA Top Boot Block Lockout ...
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Embedded Programming Algorithm Increment Address Program Command Sequence (Address/Command): Start Write Program Command Sequence (see below) #Data Polling/ Toggle bit No Last Address ? Yes Programming Completed 5555H/AAH 2AAAH/55H 5555H/A0H Program Address/Program Data - 10 - W39L040 Pause T BP ...
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Embedded Erase Algorithm Write Erase Command Sequence #Data Polling or Toggle Bit Successfully Completed Chip Erase Command Sequence (Address/Command): 5555H/AAH 2AAAH/55H 5555H/80H 5555H/AAH 2AAAH/55H 5555H/10H Start (see below) Pause T Erasure Completed Individual Sector Erase Command Sequence (Address/Command): 5555H/AAH 2AAAH/55H ...
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Embedded #Data Polling Algorithm Embedded Toggle Bit Algorithm Start VA = Byte address for programming Read Byte (DQ0 - DQ7) Address = VA No DQ7 = Data ? Yes Pass Start Read Byte (DQ0 - DQ7) Address = Don't Care ...
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Boot Block Lockout Enable Flow Chart Boot Block Lockout Feature Set Flow Load data AA to address 5555 Load data 55 to address 2AAA Load data 80 to address 5555 Load data AA to address 5555 Load data 55 to ...
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Software Product Identification and Boot Block Lockout Detection Flow Chart Product Identification Entry (1) Load data AA to address 5555 Load data 55 to address 2AAA Load data 90 to address 5555 µ Pause 10 S Product Product Identification Identification ...
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DC CHARACTERISTICS Absolute maximum Ratings PARAMETER Power Supply Voltage Operating Temperature Storage Temperature Voltage on Any Pin to Ground Potential except A9 Voltage on A9 Pin to Ground Potential Note: Exposure to conditions beyond those listed ...
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AC CHARACTERISTICS AC Test Conditions PARAMETER Input Pulse Levels Input Rise/Fall Time Input/Output Timing Level Output Load AC Test Load and Waveform <5 nS 1.5V/1.5V 1 TTL Gate and C +3.3V D OUT 30 pF (Including ...
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AC Characteristics, continued Read Cycle Timing Parameters = 3.3V ± 0.3V ° - ° 0V PARAMETER Read Cycle Time Chip Enable Access Time Address ...
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AC Characteristics, continued Power-up Timing PARAMETER Power-up to Read Operation Power-up to Write Operation Data Polling and Toggle Bit Timing Parameters PARAMETER #OE to Data Polling Output Delay #CE to Data Polling Output Delay #OE to Toggle Bit Output Delay ...
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TIMING WAVEFORMS Read Cycle Timing Diagram Address A18-0 #CE # #WE High-Z DQ7-0 #WE Controlled Command Write Cycle Timing Diagram Address A18-0 #CE #OE #WE DQ7 OLZ T CLZ T ...
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Timing Waveforms, continued #CE Controlled Command Write Cycle Timing Diagram Address A18-0 #CE #OE #WE DQ7-0 Chip Erase Timing Diagram Address A18-0 5555 DQ7-0 #CE #OE T #WE SB0 OES High Z Six-byte code ...
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Timing Waveforms, continued Sector/Page Erase Timing Diagram 5555 Address A18-0 DQ7-0 AA #CE # #WE SB0 SA = Sector Address Page Address Please refer to page 9 for detail information #DATA Polling Timing Diagram Address A18-0 ...
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Timing Waveforms, continued Toggle Bit Timing Diagram Address A18-0 #WE #CE #OE DQ6 T OEH W39L040 T OES ...
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... W39L040P-90J 90 W39L040T-70J 70 W39L040T-90J 90 W39L040Q-70J 70 W39L040Q-90J 90 W39L040P-70K 70 W39L040P-90K 90 W39L040T-70K 70 W39L040T-90K 90 W39L040Q-70K 70 W39L040Q-90K 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. ...
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HOW TO READ THE TOP MARKING Example: The top marking of 32-pin TSOP W39L040T-70 W39L040T-70 2138977A-A12 149OBSA st 1 line: Winbond logo nd 2 line: the part number: W39L040T- line: the lot number th 4 line: the ...
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... Notes: 1. Dimensions D & not include interlead flash. 2. Dimension b1 does not include dambar protrusion/intrusion. 3. Controlling dimension: Inches. 4. General appearance spec. should be based on final visual inspection sepc. Dimension in Inches Dimension in mm Symbol Min. Max. Min. Nom. Max. ...
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Package Dimensions, continued 32L STSOP ( mm θ Dimension in Inches Symbol Min 0.002 A 2 0.035 b 0.007 E c 0.004 ...
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VERSION HISTORY VERSION DATE A1 April 16, 2002 A2 August 13, 2002 A3 February 10, 2003 Headquarters No. 4, Creation Rd. III, Science-Based Industrial Park, Hsinchu, Taiwan TEL: 886-3-5770066 FAX: 886-3-5665577 http://www.winbond.com.tw/ Taipei Office 9F, No.480, Rueiguang Rd., Neihu ...