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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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SST49LF040 Fiches technique(PDF) 16 Page - Silicon Storage Technology, Inc |
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SST49LF040 Fiches technique(HTML) 16 Page - Silicon Storage Technology, Inc |
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16 / 48 page  16 Advance Information 4 Mbit LPC Flash SST49LF040 ©2001 Silicon Storage Technology, Inc. S71213-00-000 11/01 562 TABLE 7: OPERATION MODES SELECTION (PP MODE) Mode RST# OE# WE# DQ Address Read VIH VIL VIH DOUT AIN Program VIH VIH VIL DIN AIN Erase VIH VIH VIL X1 Sector or Block address, XXH for Chip-Erase Reset VIL XX High Z X Write Inhibit VIH VIL XHigh Z/DOUT X XX VIH High Z/DOUT X Product Identification VIH VIL VIH Manufacturer’s ID (BFH) Device ID2 See Table 8 T7.2 562 1. X can be VIL or VIH, but no other value. 2. Device ID 51H for SST49LF040 TABLE 8: SOFTWARE COMMAND SEQUENCE (ALL INTERFACES) Command Sequence 1st1 Cycle 1. LPC mode uses consecutive Write cycles to complete a command sequence; PP mode uses consecutive bus cycles to complete a command sequence. 2nd1 Cycle 3rd1 Cycle 4th1 Cycle 5th1 Cycle 6th1 Cycle Addr2 2. YYYY = A[31:16] In LPC mode, during SDP command sequence, YYYY must be within memory address range specified in Figures 4 and 5. In PP mode, YYYY can be VIL or VIH. Data Addr2 Data Addr2 Data Addr2 Data Addr2 Data Addr2 Data Byte- Program YYYY 5555H AAH YYYY 2AAAH 55H YYYY 5555H A0H PA3 3. PA = Program Byte address Data Sector- Erase YYYY 5555H AAH YYYY 2AAAH 55H YYYY 5555H 80H YYYY 5555H AAH YYYY 2AAAH 55H SAx4 4. SAx for Sector-Erase Address 30H Block-Erase YYYY 5555H AAH YYYY 2AAAH 55H YYYY 5555H 80H YYYY 5555H AAH YYYY 2AAAH 55H BAx5 5. BAx for Block-Erase Address 50H Chip-Erase6 6. Chip-Erase is supported in PP mode only YYYY 5555H AAH YYYY 2AAAH 55H YYYY 5555H 80H YYYY 5555H AAH YYYY 2AAAH 55H YYYY 5555H 10H Software ID Entry YYYY 5555H AAH YYYY 2AAAH 55H YYYY 5555H 90H Read ID7 7. SST Manufacturer’s ID = BFH, is read with A0 = 0. With A18-A1 = 0; 49LF040 Device ID = 51H, is read with A0 = 1. Software ID Exit8 8. Both Software ID Exit operations are equivalent XXXX XXXXH F0H Software ID Exit8 YYYY 5555H AAH YYYY 2AAAH 55H YYYY 5555H F0H T8.3 562 |
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