W29C020P-12 Winbond Electronics, W29C020P-12 Datasheet
W29C020P-12
Specifications of W29C020P-12
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W29C020P-12 Summary of contents
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... GENERAL DESCRIPTION The W29C020 is a 2-megabit, 5-volt only CMOS flash memory organized as 256K 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 W29C020 results in fast write (erase/program) PP operations with extremely low current consumption compared to other comparable 5-volt flash memory products ...
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PIN CONFIGURATIONS A16 3 30 A15 4 29 A12 32-pin DIP ...
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FUNCTIONAL DESCRIPTION Read Mode The read operation of the W29C020 is controlled by CE and OE , both of which have to be low for the host to obtain data from the outputs used for device selection. When ...
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Hardware Data Protection The integrity of the data stored in the W29C020 is also hardware protected in the following ways: (1) Noise/Glitch Protection pulse of less than duration will not initiate a write cycle. (2) ...
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Toggle Bit (DQ6)- Write Status Detection In addition to data polling, the W29C020 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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... Feature Set on First 8K Address Boot Block Notes for boot block lockout enable: 1. Data Format: DQ7 DQ0 (Hex) 2. Address Format: A14 A0 (Hex you have any questions about this commend sequence, please contact the local distributor or Winbond Electronics Corp. ADDRESS DATA 5555H AAH ...
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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 (< 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 nS and 120 nS PARAMETER Read Cycle Time Chip Enable Access Time Address Access Time Output Enable Access Time CE High to High-Z Output OE ...
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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 T Address A17 DQ7-0 CE Controlled Write Cycle Timing Diagram Address A17 High Z DQ7 OES ...
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Timing Waveforms, continued Page Write Cycle Timing Diagram Address A17-0 DQ7 DATA Polling Timing Diagram Address A15 DQ7 T BLC T WPH T WP Byte 0 Byte 1 Byte 2 T OEH T DH ...
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Timing Waveforms, continued Toggle Bit Timing Diagram DQ6 Page Write Timing Diagram Software Data Protection Mode Address A15-0 5555 DQ7 SW0 OEH T OE HIGH-Z Byte/page load Three-byte sequence ...
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Timing Waveforms, continued Reset Software Data Protection Timing Diagram Address A15-0 DQ7 Software Chip Erase Timing Diagram Address A15-0 DQ7 Six-byte sequence for resetting software data protection mode 5555 5555 2AAA 5555 2AAA 55 ...
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... W29C020T-12B 120 W29C020P-70B 70 W29C020P-90B 90 W29C020P-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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... A S 0.085 2.16 Notes: 1.Dimensions D Max. & S include mold flash or tie bar burrs. c 2.Dimension E1 does not include interlead flash. 3.Dimensions D & E1 include mold mismatch and . are determined at the mold parting line. 4.Dimension B1 does not include dambar protrusion/intrusion. 5.Controlling dimension: Inches. ...
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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. Nom. Max. ...
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... Add. pause Correct the time from Add. cycling 100 item Winbond Electronics (H.K.) Ltd. Winbond Electronics North America Corp. Winbond Memory Lab. Rm. 803, World Trade Square, Tower II, 123 Hoi Bun Rd., Kwun Tong, Winbond Microelectronics Corp. Kowloon, Hong Kong Winbond Systems Lab. ...