Rainbow-electronics W27L520 Manual de usuario

Preliminary W27L52064K ×× 8 ELECTRICALLY ERASABLE EPROMPublication Release Date: 4/26/2000- 1 - Revision A2GENERAL DESCRIPTIONThe W27L520 is a high sp

Preliminary W27L520- 10 -SMART PROGRAMMING ALGORITHM 1StartAddress = First LocationOE/Vpp = 13VProgram One 50 S PulseLast Address ?Address = First L

Preliminary W27L520Publication Release Date: 4/26/2000- 11 - Revision A2SMART PROGRAMMING ALGORITHM 2StartAddress = First LocationProgram One 50 S P

Preliminary W27L520- 12 -SMART ERASE ALGORITHM 1StartOE/Vpp = 13VLastAddress?OE/Vpp = VCompareAll Bytes toFFs (HEX)PassDeviceIncrementAddressNoFailFai

Preliminary W27L520Publication Release Date: 4/26/2000- 13 - Revision A2SMART ERASE ALGORITHM 2StartOE/Vpp = 13VLastAddress?OE/Vpp = VCompareAll Bytes

Preliminary W27L520- 14 -ORDERING INFORMATIONPART NO. ACCESSTIME(nS)OPERATINGCURRENTMAX. (mA)STANDBYCURRENTMAX. (µµA)PACKAGEW27L520W-70* 70 8 20 173mi

Preliminary W27L520Publication Release Date: 4/26/2000- 15 - Revision A2PACKAGE DIMENSIONS20-pin TSSOPDimension in mmDimension in InchesMin. Nom. Max.

Preliminary W27L520- 16 -VERSION HISTORYVERSION DATE PAGE DESCRIPTIONA1 Sep. 1999 - Initial IssuedA2 Feb. 2000 3, 4, 9, 11 Specify VDD, VID, VCE, and

Preliminary W27L520- 2 -FUNCTIONAL DESCRIPTIONRead ModeUnlike conventional UVEPROMs, which has CE and OE two control functions, the W27L520 has oneOE/

Preliminary W27L520Publication Release Date: 4/26/2000- 3 - Revision A2An EPROM's power switching characteristics require careful device decoupli

Preliminary W27L520- 4 -DC CHARACTERISTICSAbsolute Maximum RatingsPARAMETER RATING UNITAmbient Temperature with Power Applied -55 to +125°CStorage Tem

Preliminary W27L520Publication Release Date: 4/26/2000- 5 - Revision A2AC CHARACTERISTICSAC Test ConditionsPARAMETER CONDITIONSInput Pulse Levels 0V/3

Preliminary W27L520- 6 -READ OPERATION DC CHARACTERISTICS(VDD = 3.0V to 3.6V, TA = 0 to 70° C)PARAMETER SYM. CONDITIONS LIMITS UNITMIN. TYP. MAX.Inpu

Preliminary W27L520Publication Release Date: 4/26/2000- 7 - Revision A2DC PROGRAMMING CHARACTERISTICS(VDD = 6.5V ±0.25V, TA = 25° C ±5° C)PARAMETER SY

Preliminary W27L520- 8 -TIMING WAVEFORMSAC Read WaveformOE/VppAD0-AD7High ZTOETOHTDFVIHVILA8-A15ALEAddress ValidTCEVILVIHVIHVILAddress Data TALETACCTA

Preliminary W27L520Publication Release Date: 4/26/2000- 9 - Revision A2Timing Waveforms, continuedErase Waveform 1OE/Vpp13.0VTPRTVIHVILALEVIHVILAddres