 |
전자부품 데이터시트 검색엔진 |
|
|
전자부품 데이터시트 검색엔진 |
|
AM42DL16X4D 데이터시트(HTML) 12 Page - SPANSION |
|
||||||||||||||||||||||||||||||
AM42DL16X4D 데이터시트(HTML) 12 Page - SPANSION |
|
|
12 / 61 page 
January 9, 2002 Am42DL16x4D 11 P R E L IMINARY Table 1. Device Bus Operations—Flash Word Mode, CIOf = V IH Legend: L = Logic Low = V IL, H = Logic High = VIH, VID = 11.5–12.5 V, VHH = 9.0 ± 0.5 V, X = Don’t Care, SADD = Flash Sector Address, A IN = Address In, DIN = Data In, DOUT = Data Out Notes: 1. Other operations except for those indicated in this column are inhibited. 2. Do not apply CE#f = V IL, CE1#s = VIL and CE2s = VIH at the same time. 3. Don’t care or open LB#s or UB#s. 4. If WP#/ACC = V IL , the boot sectors will be protected. If WP#/ACC = VIH the boot sectors protection will be removed. If WP#/ACC = V ACC (9V), the program time will be reduced by 40%. 5. The sector protect and sector unprotect functions may also be implemented via programming equipment. See the “The autoselect mode provides manufacturer and device identification, and sector protection verification, through identifier codes output on DQ7–DQ0. The autoselect codes can be accessed in-system through the command register. Refer to the Autoselect Command Sequence section for more information.Sector/Sector Block Protection and Unprotection” section. 6. If WP#/ACC = VIL, the two outermost boot sectors remain protected. If WP#/ACC = VIH, the two outermost boot sector protection depends on whether they were last protected or unprotected using the method described in “The autoselect mode provides manufacturer and device identification, and sector protection verification, through identifier codes output on DQ7–DQ0. The autoselect codes can be accessed in-system through the command register. Refer to the Autoselect Command Sequence section for more information.Sector/Sector Block Protection and Unprotection”. If WP#/ACC = VHH, all sectors will be unprotected. Operation (Notes 1, 2) CE#f CE1#s CE2s OE# WE# Addr. LB#s UB#s RESET# WP#/ACC (Note 4) DQ7– DQ0 DQ15– DQ8 Read from Flash L HX LH A IN XX H L/H D OUT D OUT XL Write to Flash L HX HL A IN XX H (Note 4) D IN D IN XL Standby VCC ± 0.3 V HX XX X X X VCC ± 0.3 V H High-Z High-Z XL Output Disable L L H HH X L X H L/H High-Z High-Z HH X X L Flash Hardware Reset X HX X X X X X L L/H High-Z High-Z XL Sector Protect (Note 5) L HX HL SADD, A6 = L, A1 = H, A0 = L XX V ID L/H D IN X XL Sector Unprotect (Note 5) L HX HL SADD, A6 = H, A1 = H, A0 = L XX V ID (Note 6) D IN X XL Temporary Sector Unprotect X HX XX X X X V ID (Note 6) D IN High-Z XL Read from SRAM H L H L H A IN LL HX D OUT D OUT HL High-Z D OUT LH D OUT High-Z Write to SRAM H L H X L A IN LL HX D IN D IN HL High-Z D IN LH D IN High-Z |
Korean ▼ 
English
Chinese
German
Japanese
Russian
Spanish
French
Italian
Portuguese
Polish
Vietnamese
