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STPC12GDYI bảng dữ liệu(PDF) 56 Page - STMicroelectronics |
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STPC12GDYI bảng dữ liệu(HTML) 56 Page - STMicroelectronics |
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56 / 111 page  ELECTRICAL SPECIFICATIONS 56/111 Issue 1.0 - July 24, 2002 24 IOR#, IOW# asserted before SA[19:0] 24o I/O access to 16-bit ISA Slave Standard cycle 19T Cycles 24r I/O access to 16-bit ISA Slave Standard cycle 19T Cycles 25 MEMR#, MEMW# asserted before next ALE# asserted 25b Memory access to 16-bit ISA Slave Standard cycle 10T Cycles 25d Memory access to 8-bit ISA Slave Standard cycle 10T Cycles 25 SMEMR#, SMEMW# asserted before next ALE# asserted 25e Memory access to 16-bit ISA Slave - 2BCLK 10T Cycles 25f Memory access to 16-bit ISA Slave Standard cycle 10T Cycles 25h Memory access to 8-bit ISA Slave Standard cycle 10T Cycles 25 IOR#, IOW# asserted before next ALE# asserted 25i I/O access to 16-bit ISA Slave Standard cycle 10T Cycles 25k I/O access to 16-bit ISA Slave Standard cycle 10T Cycles 26 MEMR#, MEMW# asserted before next MEMR#, MEMW# asserted 26b Memory access to 16-bit ISA Slave Standard cycle 12T Cycles 26d Memory access to 8-bit ISA Slave Standard cycle 12T Cycles 26 SMEMR#, SMEMW# asserted before next SMEMR#, SMEMW# asserted 26f Memory access to 16-bit ISA Slave Standard cycle 12T Cycles 26h Memory access to 8-bit ISA Slave Standard cycle 12T Cycles 26 IOR#, IOW# asserted before next IOR#, IOW# asserted 26i I/O access to 16-bit ISA Slave Standard cycle 12T Cycles 26k I/O access to 8-bit ISA Slave Standard cycle 12T Cycles 28 Any command negated to MEMR#, SMEMR#, MEMR#, SMEMW# asserted 28a Memory access to 16-bit ISA Slave 3T Cycles 28b Memory access to 8-bit ISA Slave 3T Cycles 28 Any command negated to IOR#, IOW# asserted 28c I/O access to ISA Slave 3T Cycles 29a MEMR#, MEMW# negated before next ALE# asserted 1T Cycles 29b SMEMR#, SMEMW# negated before next ALE# asserted 1T Cycles 29c IOR#, IOW# negated before next ALE# asserted 1T Cycles 33 LA[23:17] valid to IOCHRDY negated 33a Memory access to 16-bit ISA Slave - 4 BCLK 8T Cycles 33b Memory access to 8-bit ISA Slave - 7 BCLK 14T Cycles 34 LA[23:17] valid to read data valid 34b Memory access to 16-bit ISA Slave Standard cycle 8T Cycles 34e Memory access to 8-bit ISA Slave Standard cycle 14T Cycles 37 ALE# asserted to IOCHRDY# negated 37a Memory access to 16-bit ISA Slave - 4 BCLK 6T Cycles 37b Memory access to 8-bit ISA Slave - 7 BCLK 12T Cycles 37c I/O access to 16-bit ISA Slave - 4 BCLK 6T Cycles 37d I/O access to 8-bit ISA Slave - 7 BCLK 12T Cycles 38 ALE# asserted to read data valid 38b Memory access to 16-bit ISA Slave Standard Cycle 4T Cycles 38e Memory access to 8-bit ISA Slave Standard Cycle 10T Cycles 38h I/O access to 16-bit ISA Slave Standard Cycle 4T Cycles 38l I/O access to 8-bit ISA Slave Standard Cycle 10T Cycles Table 4-14. ISA Bus AC Timing Name Parameter Min Max Units Note: The signal numbering refers to Table 4-8 |
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