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MB84VD21082EM-70PBS Datasheet(PDF) 9 Page - SPANSION |
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MB84VD21082EM-70PBS Datasheet(HTML) 9 Page - SPANSION |
9 / 53 page MB84VD2108XEM/2109XEM-70 8 User Bus Operations Table (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. *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 (9 V); Program time will reduce by 40%. Operation *1,*3 CEfCE1sCE2sDQ15/A–1 OE WE SA LB UB DQ7 to DQ0 DQ14 to DQ8 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 H H 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 High-Z H X XL Write to Flash L HX A–1 HL X X X DIN High-Z H 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 Re- set 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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