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MBM29LV008BA-12 Datasheet(PDF) 10 Page - Fujitsu Component Limited. |
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MBM29LV008BA-12 Datasheet(HTML) 10 Page - Fujitsu Component Limited. |
10 / 51 page MBM29LV008TA-70/-90/-12/MBM29LV008BA-70/-90/-12 10 The manufacturer and device codes may also be read via the command register, for instances when the MBM29LV008TA/BA 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 (MBM29LV008TA = 3EH and MBM29LV008BA = 37H). 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 MBM29LV008TA/008BA Sector Protection Verify Autoselect Codes Type A13 to A19 A10 A6 A1 A0 Code (HEX) Manufacture’s Code X VIL VIL VIL VIL 04H Device Code MBM29LV008TA X VIL VIL VIL VIH 3EH MBM29LV008BA X VIL VIL VIL VIH 37H 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 MBM29LV008TA 3EH 0 0111110 MBM29LV008BA 37H 00110111 Sector Protection 01H 0 0 0 0 0 0 0 1 |
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