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MB84VD22194FM-70PBS Datasheet(PDF) 7 Page - SPANSION |
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MB84VD22194FM-70PBS Datasheet(HTML) 7 Page - SPANSION |
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7 / 47 page  MB84VD22184FM/VD22194FM-70 6 s DEVICE BUS OPERATIONS • User Bus Operations 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 (9V) ; Program time will reduce by 40%. Operation *1, *3 CEfCE1sCE2s OE WE LB UB DQ7 to DQ0 DQ15 to DQ8 RESET WP/ ACC *5 Full Standby H HX X X X X High-Z High-Z H X XL Output Disable HL H H H X X High-Z High-Z HX X X H H High-Z High-Z L HX H H X X High-Z High-Z XL Read from Flash *2 L HX LH X X DOUT DOUT HX XL Write to Flash L HX HL X X DIN DIN HX XL Read from SRAM H L H L H LL DOUT DOUT HX H L High-Z DOUT LH DOUT High-Z Write to SRAM H L H X L LL DIN DIN HX H L High-Z DIN LH DIN High-Z Temporary Sector Group Unprotection*4 XX X X X X X X X VID X Flash Hardware Reset X HX X X X X High-Z High-Z L X XL Boot Block Sector Write Protection XX X X X X X X X X L |
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