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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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AM41DL3208G 데이터시트(HTML) 14 Page - SPANSION |
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AM41DL3208G 데이터시트(HTML) 14 Page - SPANSION |
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February 13, 2002 Am41DL3208G 13 P R E L IMINARY Table 3. Device Bus Operations—Flash Byte Mode, CIOf = V SS; SRAM Word Mode, CIOs = VCC Legend: L = Logic Low = VIL, 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, AIN = Address In (for Flash Byte Mode, DQ15 = A-1), 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 = VIL, 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 = VACC (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” section. 6. If WP#/ACC = V IL, 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 XXH L/H D OUT High-Z XL Write to Flash L HX HL X A IN XXH (Note 3) D IN High-Z XL Standby VCC ± 0.3 V HX XXX X X X VCC ± 0.3 V H High-Z High-Z XL Output Disable L L H H H X X LX H L/H High-Z High-Z XL 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 XXX AIN XX VID (Note 6) DIN High-Z XL Read from SRAM HL H L H X 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 X A IN LL HX D IN D IN HL High-Z D IN LH D IN High-Z |
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