w27e520 Winbond Electronics Corp America, w27e520 Datasheet
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w27e520
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w27e520 Summary of contents
Page 1
... To cooperate with the MCU, this device could save the external TTL component, also cost and space. It requires only one supply in the range of 4.5V to 5.5V in normal read mode. The W27E520 provides an electrical chip erase function. It will be a great convenient when you need to change/update the contents in the device. ...
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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 W27E520 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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... IH V First command: PE Addr. = 5555 (hex) Second command: Addr. = 2AAA (hex Others = Others = Publication Release Date: September 2000 - 3 - W27E520 ), and DD and GND. The bulk capacitor AD[7: A[7: OUT V High A[7:0] ...
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... A8 & A11 = A10 = V , Others = and removed simultaneously or after W27E520 RATING UNIT -55 to +125 C -65 to +150 C -2.0 to +7.0 V -2.0 to +7.0 V -2.0 to +7.0 V -2.0 to +14.0 V LIMITS UNIT MIN. TYP. MAX. - -0.3 - ...
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... AC Test Load and Waveforms D OUT 3V 0V SYMBOL OUT OUT 0V/ 1.5V/1. 100 pF +1.3V (IN914) 3.3K ohm 100 pF (Including Jig and Scope) Input Output Test Points 1.5V 1.5V Publication Release Date: September 2000 - 5 - W27E520 MAX. UNIT CONDITIONS = -0.4 mA/2 Test Points Revision A2 ...
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... ALE ACC and removed simultaneously or after W27E520 LIMITS UNIT MIN. TYP. MAX 100 -0.6 - 0 0 W27E520-90 UNIT MIN. MAX ...
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... T 100 LAH T 2 2.0 OES T 2.0 OEH EOE T - POE T 0 DFP T 2 2.0 VR and removed simultaneously or after V PP Publication Release Date: September 2000 - 7 - W27E520 LIMITS UNIT TYP. MAX 12.0 12.5 V 13.0 13.25 V 6.5 6.75 V LIMITS UNIT TYP. MAX. ...
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... LAS V IH AD[7:0] Add V IL Address Valid T ALE Data Address T ACC PROGRAM Address Stable T T OES OEH PPW LAH Data W27E520 High Z PROGRAM (VERIFY ALE T DFP T POE Add Data out ...
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... V =6. A[15: A[15: RPT T OES T OEH T VS PRT T ALE T EPW1 T EPW2 T LAH LAS Publication Release Date: September 2000 - 9 - W27E520 Erase (Verify 6.5V DD Address Valid Add D OUT EOE Erase Verify V =6.5V DD Address Valid T EOE 10 Add D OUT Revision A2 ...
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... Address = First Location V = 6.5V DD OE/Vpp = 13V Program One 50 S Pulse Last Address ? Yes Address = First Location Fail Verify Byte No Program One 50 S Pulse V = 5.0V DD OE/Vpp = V IL Compare Fail All Bytes to Original Data Pass Device Passed - 10 - W27E520 Increment Yes Device Failed ...
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... Increment X Yes X = 25? No Fail Verify One Byte OE/Vpp = V IL Pass No Last Address ? Yes Power Down V =5.0V DD Fail Compare All Bytes to Original Data Pass Device Passed Publication Release Date: September 2000 - 11 - W27E520 Fail Verify One Byte OE/Vpp = V IL Pass Device Failed Revision A2 ...
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... A9 = 13V; A8&A11 = V IL A10 = V IH Chip Erase 100 mS Pulse Address = First Location Increment 6.5V DD OE/Vpp = V IL Fail Erase Verify Pass Last Address? Yes Power Down V = 5.0V DD OE/Vpp = V IL Compare Fail All Bytes to FFs (HEX) Pass Pass Device - 12 - W27E520 20? Yes Fail Device ...
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... Program One 50 S Pulse Program One 100 mS Pulse Increment 6.5V DD OE/Vpp = V IL Fail Erase Verify Pass No Last Address? Yes Power Down V = 5.0V DD OE/Vpp = V IL Compare Fail All Bytes to FFs (HEX) Pass Pass Device Publication Release Date: September 2000 - 13 - W27E520 20? Yes Fail Device Revision A2 ...
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... 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. OPERATING STANDBY CURRENT CURRENT MAX. (mA) MAX 100 20 100 20 100 20 100 - 14 - W27E520 PACKAGE 173mil TSSOP 173mil TSSOP 300mil SOP 300mil SOP ...
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... Symbol Publication Release Date: September 2000 - 15 - W27E520 Dimension in Inches Dimension in mm Min. Nom. Max. Min. Nom. Max. 0.043 1.10 0.002 0.05 0.15 0.006 1 0.50 0.020 0.028 0.70 6.40 0.252 0.260 6.60 0.256 0.246 6.25 6.50 4.48 0.169 0.176 4. ...
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... Kowloon, Hong Kong Winbond Systems Lab. Winbond Systems Lab. TEL: 852-27513100 TEL: 852-27513100 2727 N. First Street, San Jose, 2727 N. First Street, San Jose, FAX: 852-27552064 FAX: 852-27552064 CA 95134, U.S.A. CA 95134, U.S.A. TEL: 408-9436666 TEL: 408-9436666 FAX: 408-5441798 FAX: 408-5441798 - 16 - W27E520 -> ...