W27C512-45 Winbond Electronics, W27C512-45 Datasheet
W27C512-45
Specifications of W27C512-45
Available stocks
Related parts for W27C512-45
W27C512-45 Summary of contents
Page 1
... READ OPERATION DC CHARACTERISTICS ........................................................................ 10 12. READ OPERATION AC CHARACTERISTICS......................................................................... 10 13. DC PROGRAMMING CHARACTERISTICS............................................................................. 11 14. AC PROGRAMMING/ERASE CHARACTERISTICS................................................................ 12 15. TIMING WAVEFORMS ............................................................................................................. 13 16. SMART PROGRAMMING ALGORITHM 1 ............................................................................... 15 17. SMART PROGRAMMING ALGORITHM 2 ............................................................................... 16 18. SMART ERASE ALGORITHM.................................................................................................. 17 19. ORDERING INFORMATION .................................................................................................... 18 20. PACKAGE DIMENSIONS ......................................................................................................... 19 21. VERSION HISTORY ................................................................................................................. 20 Publication Release Date: January 9, 2006 - 1 - W27C512 Revision A6 ...
Page 2
... 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. 2. FEATURES High speed access time: 45/70/90/120 nS (max.) Read operating current (max ...
Page 3
... PIN CONFIGURATIONS A15 A12 GND 28-pin DIP 32-pin PLCC W27C512 V CC A14 A13 A8 A9 A11 OE/Vpp A10 A11 OE/Vpp A10 Publication Release Date: January 9, 2006 Revision A6 ...
Page 4
... BLOCK DIAGRAM CE OE A15 V CC GND 5. PIN DESCRIPTION SYMBOL A0−A15 Q0− GND NC OUTPUT CONTROL BUFFER DECODER DESCRIPTION Address Inputs Data Inputs/Outputs Chip Enable Output Enable, Program/Erase Supply Voltage Power Supply Ground No Connection - 4 - W27C512 CORE ARRAY ...
Page 5
... 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. ...
Page 6
... 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. ...
Page 7
... Read Output Disable Standby (TTL) Standby (CMOS) Program Program Verify Program Inhibit Erase Erase Verify Erase Inhibit Product Identifier-manufacturer Product Identifier-device = 5V 5V ±0. Publication Release Date: January 9, 2006 - 7 - W27C512 PINS OUTPUTS OUT High High High OUT High 3.75 D OUT High (Hex ...
Page 8
... V CC PP, SYM. CONDITIONS and removed simultaneously or after W27C512 RATING UNIT ° +70 °C -65 to +125 -0 +0 -0.5 to +14.5 V -0.5 to +14 LIMITS UNIT MIN. TYP. MAX. μA - -0.3 - 0.8 V 2 0. 13.75 14 14.25 V 13.75 14 14.25 V 4.75 5.0 5. ...
Page 9
... Jig and Scope for 45/70 nS (Including Jig and Scope) Output Input Test Points 2.0V 2.0V 0.8V 0.8V Output Input Test Point 1.5V Publication Release Date: January 9, 2006 - 9 - W27C512 MAX. UNIT CONDITIONS 90/120 NS 0.45V to 2. 0.8V/2. 100 pF ...
Page 10
... Chip Enable Access Time Address Access Time Output Enable Access Time /VPP High to High-Z Output OE Output Hold from Address Change Note: V must be applied simultaneously or before V CC CONDITIONS OUT ±0. mA MHz OUT - 2 -0 W27C512-45 W27C512-70 SYM. MIN. MAX. MIN ACC and removed simultaneously or after W27C512 LIMITS MIN ...
Page 11
... Output High Voltage (Verify) A9 Silicon I.D. Voltage VPP Program Voltage VCC Supply Voltage (Program) SYM. CONDITIONS MIN 11. 4.75 CP Publication Release Date: January 9, 2006 - 11 - W27C512 LIMITS UNIT TYP. MAX. μA - -0.3 - 0.8 V 2 0. 12.0 12.5 V 12.0 12.25 V 5.0 5.25 V Revision A6 ...
Page 12
... T 2.0 OES T 2.0 OEH T 25 DV1 T 25 DV2 T 0 DFP T 2 2.0 AHC 3.75V ACV T - OEV and removed simultaneously or after W27C512 LIMITS UNIT TYP. MAX μ μS 100 105 100 105 mS μ μ μ μ μ 130 nS μ μ μS ...
Page 13
... T AHC D OUT Data All One VCS 3.75V T OES T OEV = 150 OEH T PRT T Always = PWE W27C512 Valid Output High Z Blank Check Read Verify Address Valid Address Valid Address Valid T =250 nS ACV T ACC D D OUT OUT Publication Release Date: January 9, 2006 Revision A6 ...
Page 14
... V IH Data Data In Stable 12.0V OE/Vpp OES PRT T PWP Program Program Verify Address Address Address Stable Valid Stable Data Data In Out Stable DV1 T OEH should not be toggled during program verify period - 14 - W27C512 Read Verify Address Valid DFP Data Out T ACC DV2 ...
Page 15
... Program One 100 S Pulse Last Address? Yes Address = First Location Fail Verify Byte μ Program One 100 S Pulse Vcc = 5.0V OE/Vpp = V IL Compare Fail All Bytes to Original Data Pass Device Passed Publication Release Date: January 9, 2006 - 15 - W27C512 Increment Yes Device Failed Revision A6 ...
Page 16
... Address Start Address = First Location Vcc = 5. μ Program One 100 S Pulse OE/V = 12V PP Increment X Yes X = 25? No Fail Verify One Byte OE Pass No Last Address ? Yes Compare All Bytes to Original Data Pass Device Passed - 16 - W27C512 Fail Verify One Byte OE Pass Fail Device Failed ...
Page 17
... Chip Erase 100 mS Pulse Address = First Location Increment X Vcc = 3.75V OE/Vpp = V IL Fail Erase Verify Pass No Last Address? Yes Vcc = 5V OE/Vpp = V IL Compare Fail All Bytes to FFs (HEX) Pass Pass Device Publication Release Date: January 9, 2006 - 17 - W27C512 Yes Fail Device Revision A6 ...
Page 18
... W27C512P-70 70 W27C512P-90 90 W27C512P-12 120 W27C512-45Z 45 W27C512P-45Z 45 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 19
... Seating Plane Base Plane A 1 Seating Plane Publication Release Date: January 9, 2006 - 19 - W27C512 Dimension in Inches Dimension in mm Symbol Min. Nom. Max. Min. Nom. Max. A 0.210 5.33 A 0.010 0. 0.155 0.160 0.150 3.81 3.94 4. 0.016 0.018 0.41 0.46 0.56 0.022 B 0.060 1.47 1 ...
Page 20
... Correct Imput High Voltage (V from 5.0 ±10% to 5.0 ± Correct V CC Modify function description ( → Low; V → High Typo correction 15 Adding important notice Ordering Information:Add 18 W27C512-45Z and W27C512P-45Z Lead free part Important Notice - 20 - W27C512 DESCRIPTION ) from 2.0 (min) to 2.2 (max) IH and ...