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MBM29LV002TC-90PNS Datasheet(PDF) 11 Page - Fujitsu Component Limited. |
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MBM29LV002TC-90PNS Datasheet(HTML) 11 Page - Fujitsu Component Limited. |
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11 / 52 page  11 MBM29LV002TC-70/-90/-12/MBM29LV002BC-70/-90/-12 The manufacturer and device codes may also be read via the command register, for instances when the MBM29LV002TC/BC are erased or programmed in a system without access to high voltage on the A9 pin. The command sequence is illustrated in Table 6. (Refer to Autoselect Command section.) Byte 0 (A0 = VIL) represents the manufacturer’s code (Fujitsu = 04H) and (A0 = VIH) represents the device identifier code (MBM29LV002TC = 40H and MBM29LV002BC = C2H). These two bytes/words are given in the tables 3.1 and 3.2. All identifiers for manufactures and device will exhibit odd parity with DQ7 defined as the parity bit. In order to read the proper device codes when executing the autoselect, A1 must be VIL. (See Tables 3.1 and 3.2.) * : Outputs 01H at protected sector addresses and outputs 00H at unprotected sector addresses. Table 3 .1 MBM29LV002TC/002BC Sector Protection Verify Autoselect Codes Type A13 to A17 A10 A6 A1 A0 Code (HEX) Manufacture’s Code X VIL VIL VIL VIL 04H Device Code MBM29LV002TC X VIL VIL VIL VIH 40H MBM29LV002BC X VIL VIL VIL VIH C2H Sector Protection Sector Addresses VIL VIL VIH VIL 01H* Table 3 .2 Expanded Autoselect Code Table Type Code DQ7 DQ6 DQ5 DQ4 DQ3 DQ2 DQ1 DQ0 Manufacture’s Code 04H 00000100 Device Code MBM29LV002TC 40H 01000000 MBM29LV002BC C2H 1 1000010 Sector Protection 01H 0 0 0 0 0 0 0 1 |
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