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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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SST49LF004A датащи(PDF) 18 Page - Silicon Storage Technology, Inc |
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SST49LF004A датащи(HTML) 18 Page - Silicon Storage Technology, Inc |
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18 / 36 page  18 Advance Information 2 Mbit / 3 Mbit / 4 Mbit / 8 Mbit Firmware Hub SST49LF002A / SST49LF003A / SST49LF004A / SST49LF008A ©2001 Silicon Storage Technology, Inc. S71161-06-000 9/01 504 TABLE 9: 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 X VIL VIH XHigh Z/DOUT High Z/DOUT X X Product Identification VIH VIL VIH Manufacturer’s ID (BFH) Device ID2 A18-A1=VIL, A0=VIL A18-A1=VIL, A0=VIH T9.4 504 1. X can be VIL or VIH, but no other value. 2. Device ID 57H for SST49LF002A, 1BH for SST49LF003A, 60H for SST49LF004A, and 5AH for SST49LF008A TABLE 10: SOFTWARE COMMAND SEQUENCE Command Sequence 1st1 Write Cycle 1. FWH Mode uses consecutive Write cycles to complete a command sequence; PP Mode uses consecutive bus cycles to complete a command sequence. 2nd1 Write Cycle 3rd1 Write Cycle 4th1 Write Cycle 5th1 Write Cycle 6th1 Write Cycle Addr2 2. Address format A14-A0 (Hex), Addresses A15-A21 can be VIL or VIH, but no other value, for the Command sequence in PP Mode. Data Addr2 Data Addr2 Data Addr2 Data Addr2 Data Addr2 Data Byte-Program 5555H AAH 2AAAH 55H 5555H A0H BA3 3. BA = Program Byte address Data Sector-Erase 5555H AAH 2AAAH 55H 5555H 80H 5555H AAH 2AAAH 55H SAX4 4. SAX for Sector-Erase Address 30H Block-Erase 5555H AAH 2AAAH 55H 5555H 80H 5555H AAH 2AAAH 55H BAX5 5. BAX for Block-Erase Address 50H Chip-Erase6 6. Chip-Erase is supported in PP Mode only 5555H AAH 2AAAH 55H 5555H 80H 5555H AAH 2AAAH 55H 5555H 10H Software ID Entry7,8 7. SST Manufacturer’s ID = BFH, is read with A0=0, With A17-A1 = 0; 49LF002A Device ID = 57H, is read with A0 = 1. With A18-A = 0; 49LF003A Device ID = 1BH, is read with A0 = 1. With A18-A1 = 0; 49LF004A Device ID = 60H, is read with A0 = 1. With A19-A1 = 0; 49LF008A Device ID = 5AH, is read with A0 = 1. 8. The device does not remain in Software Product ID mode if powered down. 5555H AAH 2AAAH 55H 5555H 90H Software ID Exit9 9. Both Software ID Exit operations are equivalent XXH F0H Software ID Exit9 5555H AAH 2AAAH 55H 5555H F0H T10.5 504 |
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