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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ATmega16 датащи(PDF) 272 Page - ATMEL Corporation |
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ATmega16 датащи(HTML) 272 Page - ATMEL Corporation |
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272 / 357 page  272 2466S–AVR–05/09 ATmega16(L) Figure 135. Parallel Programming Timing, Reading Sequence (within the Same Page) with Timing Requirements (1) Note: 1. The timing requirements shown in Figure 133 (i.e., tDVXH, tXHXL, and tXLDX) also apply to read- ing operation. Table 113. Parallel Programming Characteristics, V CC = 5 V ± 10% Symbol Parameter Min Typ Max Units VPP Programming Enable Voltage 11.5 12.5 V IPP Programming Enable Current 250 μA tDVXH Data and Control Valid before XTAL1 High 67 ns tXLXH XTAL1 Low to XTAL1 High 200 ns tXHXL XTAL1 Pulse Width High 150 ns tXLDX Data and Control Hold after XTAL1 Low 67 ns tXLWL XTAL1 Low to WR Low 0 ns tXLPH XTAL1 Low to PAGEL high 0 ns tPLXH PAGEL low to XTAL1 high 150 ns tBVPH BS1 Valid before PAGEL High 67 ns tPHPL PAGEL Pulse Width High 150 ns tPLBX BS1 Hold after PAGEL Low 67 ns tWLBX BS2/1 Hold after WR Low 67 ns tPLWL PAGEL Low to WR Low 67 ns tBVWL BS1 Valid to WR Low 67 ns tWLWH WR Pulse Width Low 150 ns tWLRL WR Low to RDY/BSY Low 0 1 μs tWLRH WR Low to RDY/BSY High (1) 3.7 4.5 ms tWLRH_CE WR Low to RDY/BSY High for Chip Erase (2) 7.5 9 ms tXLOL XTAL1 Low to OE Low 0 ns XTAL1 OE ADDR0 (Low Byte) DATA (Low Byte) DATA (High Byte) ADDR1 (Low Byte) DATA BS1 XA0 XA1 LOAD ADDRESS (LOW BYTE) READ DATA (LOW BYTE) READ DATA (HIGH BYTE) LOAD ADDRESS (LOW BYTE) t BVDV t OLDV t XLOL t OHDZ |
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