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MBM29DL640E80TR Datasheet(PDF) 9 Page - Fujitsu Component Limited. |
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MBM29DL640E80TR Datasheet(HTML) 9 Page - Fujitsu Component Limited. |
9 / 71 page MBM29DL640E80/90/12 9 s s s s DEVICE BUS OPERATION Table 2 MBM29DL640E User Bus Operations (BYTE = VIH) Legend : L = VIL, H = VIH, X = VIL or VIH, = Pulse input. See DC Characteristics for voltage levels. *1: Manufacturer and device codes may also be accessed via a command register write sequence. SeeTable 4. *2: Refer to section on Sector Group Protection. *3: WE can be VIL if OE is VIL, OE at VIH initiates the write operations. *4: VCC = 3.3 V ± 10% *5: It is also used for the extended sector group protection. *6: Protect “outermost” 2 × 8 Kbytes (4 Kwords) on both ends of the boot block sectors. (Continued) Operation CE OE WE A0 A1 A2 A3 A6 A9 DQ15 to DQ0 RESET WP/ ACC Auto-Select Manufacturer Code *1 LL H L LLLL VID Code H X Auto-Select Device Code *1 LL H H LLLL VID Code H X Extended Auto-Select Device Code *1 L L H L HHH L VID Code H X L L HHHHH L VID Code H X Read *3 LL H A0 A1 A2 A3 A6 A9 DOUT HX Standby H X XXXXXXX High-Z H X Output Disable L H H XXXXXX High-Z H X Write (Program/Erase) L H L A0 A1 A2 A3 A6 A9 DIN HX Enable Sector Group Protection *2, *4 LVID L H LLL VID XH X Verify Sector Group Protection *2, *4 LL H L H LLL VID Code H X Temporary Sector Group Unprotection *5 XXXXXXXXX X VID X Reset (Hardware) /Standby X X XXXXXXX High-Z L X Boot Block Sector Write Protection *6 XXXXXXXXX X X L |
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