w27c512 Winbond Electronics Corp America, w27c512 Datasheet
w27c512
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w27c512 Summary of contents
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... ELECTRICALLY ERASABLE EPROM GENERAL DESCRIPTION The W27C512 is a high speed, low power Electrically Erasable and Programmable Read Only Memory organized as 65536 8 bits that operates on a single 5 volt power supply. The W27C512 provides an electrical chip erase function. FEATURES High speed access time: 45/70/90/120 nS (max ...
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... The erase operation is the only way to change data from "0" to "1." Unlike conventional UVEPROMs, which use ultraviolet light to erase the contents of the entire chip (a procedure that requires up to half an hour), the W27C512 uses electrical erasure. Generally, the chip can be erased within 100 mS by using an EPROM writer with a special erase algorithm. ...
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... OE /V Two-line Output Control Since EPROMs are often used in large memory arrays, the W27C512 provides two control inputs for multiple memory connections. Two-line control provides for lowest possible memory power dissipation and ensures that data bus contention will not occur. ...
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... and removed simultaneously or after W27C512 RATING UNIT 0 to +70 C -65 to +125 -0.5 to +14.5 V -0.5 to +14 LIMITS UNIT MIN. TYP. MAX. - -0.3 - ...
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... Jig and Scope for 45/70 nS (Including Jig and Scope) Output Input Test Points Test Points 2.0V 2.0V 0.8V 0.8V Output Input Test Point Test Point 3.0V 1.5V 1.5V 0V Publication Release Date: November 1999 - 5 - W27C512 MAX. UNIT 90/120 nS 0.45V to 2. 0.8V/2. 100 pF -0.4 mA/2 Revision A4 ...
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... W27C512 LIMITS UNIT TYP. MAX 1 100 W27C512-90 W27C512-12 UNIT MIN. MAX. MIN. MAX 120 - 120 120 LIMITS UNIT MIN. TYP. MAX. - ...
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... PWP T PWE OES T OEH T DV1 T DV2 T DFP AHC 3.75V ACV T OEV and removed simultaneously or after V PP Publication Release Date: November 1999 - 7 - W27C512 LIMITS UNIT TYP. MAX 12.0 12.5 V 12.0 12.25 V 5.0 5.25 V LIMITS UNIT MIN. TYP. MAX ...
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... OUT Data All One VCS 3.75V T OES T OEV = 150 OEH T PRT Always = PWE W27C512 Valid Output High Z Blank Check Read Verify Address Valid Address Valid =250 nS T ACC D D OUT OUT ...
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... Data In Data Out Stable DV2 DV1 T OEH should not be toggled during program verify period Publication Release Date: November 1999 - 9 - W27C512 Read Verify Address Valid T DFP Data Out T ACC Revision A4 ...
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... Address = First Location Vcc = 5.0V OE/Vpp = 12V Program One 100 S Pulse Last Address? Yes Address = First Location Fail Verify Byte Program One 100 S Pulse Vcc = 5.0V OE/Vpp = V IL Compare Fail All Bytes to Original Data Pass Device Passed - 10 - W27C512 Increment Yes Device Failed ...
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... Program One 100 S Pulse OE/V = 12V PP Increment X Yes X = 25? No Verify One Byte Verify One Byte OE/V OE Pass No Last Address ? Yes Compare Fail All Bytes to Original Data Pass Device Passed Publication Release Date: November 1999 - 11 - W27C512 Fail = V IL Pass Device Failed Revision A4 ...
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... Increment Address Start Vcc = 5V OE/Vpp = 14V A9 = 14V Address = First Location Increment X Vcc = 3.75V OE/Vpp = V IL Fail Erase Verify Pass Last Address? Yes Vcc = 5V OE/Vpp = V IL Compare Fail All Bytes to FFs (HEX) Pass Pass Device - 12 - W27C512 Yes Fail Device ...
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... W27C512-12 120 W27C512P-45 45 W27C512P-70 70 W27C512P-90 90 W27C512P-12 120 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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... Dimension D & not include interlead flash Dimension b does not include dambar protrusion/intrusion. 3. Controlling dimension: Inches. 4. General appearance spec. should be based on final visual A 1 inspection spec W27C512 Dimension in Inches Dimension in mm Symbol Min. Nom. Max. Min. Nom. Max. A 5.33 0.210 A ...
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... Rm. 803, World Trade Square, Tower II, 123 Hoi Bun Rd., Kwun Tong, Winbond Microelectronics Corp. Kowloon, Hong Kong Winbond Systems Lab. TEL: 852-27513100 2727 N. First Street, San Jose, FAX: 852-27552064 CA 95134, U.S.A. TEL: 408-9436666 FAX: 408-5441798 Publication Release Date: November 1999 - 15 - W27C512 ) from 2.0 (min) to 2.2 (max) IH and Revision A4 ...