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MB84VD22184EE-90-PBS Datasheet(PDF) 8 Page - Fujitsu Component Limited. |
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MB84VD22184EE-90-PBS Datasheet(HTML) 8 Page - Fujitsu Component Limited. |
8 / 61 page MB84VD2218XEC/EE/2219XEC/EE-90 8 Table 1. 3 User Bus Operations (Flash=Byte mode; CIOf=Vss, SRAM=Byte mode; CIOs=Vss) Legend: L = VIL, H = VIH, X = VIL or VIH. See DC Characteristics for voltage levels. Notes: 1. Other operations except for indicated this column are inhibited. 2. WE can be VIL if OE is VIL, OE at VIH initiates the write operations. 3. Do not apply CEf = VIL, CE1s = VIL and CE2s = VIH at a time. 4. It is also used for the extended sector group protections. 5. WP/ACC = VIL ; protection of boot sectors. WP/ACC = VIH ; removal of boot sectors protection. WP/ACC = VACC (9V) ; Program time will reduce by 40%. 6. LBS , UBS ; Don’t care or Open. Operation (1), (3) CEfCE1sCE2sDQ15/A–1 OE WE SA LBs (6) UBs (6) DQ0 to DQ7 DQ8 to DQ14 RESET WP/ ACC (5) Full Standby H HX X X X X X X HIGH-Z HIGH-Z H X XL Output Disable HL H X H H X X X HIGH-Z HIGH-Z HX X X X X X X HIGH-Z HIGH-Z L HX A–1 H H X X X HIGH-Z HIGH-Z XL Read from Flash (2) L HX A–1 LH X X X DOUT XH X XL Write to Flash L HX A–1 HL X X X DIN XH X XL Read from SRAM H L H X L H SA X X DOUT HIGH-Z H X Write to SRAM H L H X X L SA X X DIN HIGH-Z H X Temporary Sector Group Unprotection(4) X X X X XXX X X X X VID X Flash Hardware Reset X HX X X X X X X HIGH-Z HIGH-Z L X XL Boot Block Sector Write Protection X X X X XXX X X X X X L |
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