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AM41DL32X4GT85IT 데이터시트(PDF) 15 Page - SPANSION |
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AM41DL32X4GT85IT 데이터시트(HTML) 15 Page - SPANSION |
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15 / 65 page  14 Am41DL32x4G November 12, 2001 P R E L IMINARY Table 4. Device Bus Operations—Flash Byte Mode, CIOf = V IL; SRAM Byte Mode, CIOs = VSS 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, SA = SRAM Address Input, Byte Mode, SADD = Flash Sector Address, A IN = Address In (for Flash Byte Mode, DQ15 = A-1), DIN = Data In, DOUT = Data Out, DNU = Do Not Use 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 = VIL , 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 “Sector/Sector Block Protection and Unprotection”. 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 “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# SA Addr. LB#s (Note 3) UB#s (Note 3) RESET# WP#/ACC (Note 4) DQ7– DQ0 DQ15– DQ8 Read from Flash L HX LH X A IN XX H L/H D OUT High-Z XL Write to Flash L HX HL X A IN XX H (Note 3) D IN High-Z XL Standby VCC ± 0.3 V HX XX X X X X VCC ± 0.3 V H High-Z High-Z XL Output Disable H L H H H SA X DNU DNU H L/H High-Z High-Z Flash Hardware Reset X HX X X X X X X L L/H High-Z High-Z XL Sector Protect (Note 5) L HX HL X SADD, A6 = L, A1 = H, A0 = L XX V ID L/H D IN X XL Sector Unprotect (Note 5) L HX HL X SADD, A6 = L, A1 = H, A0 = L XX V ID (Note 6) D IN X XL Temporary Sector Unprotect X HX XX X A IN XX V ID (Note 6) D IN High-Z XL Read from SRAM H L H L H SA A IN XX H X D OUT High-Z Write to SRAM H L H X L SA A IN XX H X D IN High-Z |
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