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ADV3227-EVALZ 데이터시트(PDF) 10 Page - Analog Devices |
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ADV3227-EVALZ 데이터시트(HTML) 10 Page - Analog Devices |
10 / 24 page ADV3226/ADV3227 Rev. 0 | Page 10 of 24 TRUTH TABLE AND LOGIC DIAGRAM Table 8. Operation Truth Table1 CE UPDATE CLK DATAIN DATAOUT RESET SER/PAR Description 1 X X X X X X No change in logic. 0 X DataI2 DataI-80 X 0 The data on the serial DATAIN line is loaded into the serial register. The first bit clocked into the serial register appears at DATAOUT 80 clock cycles later. 0 X 0 D0…D4 N/A3 in parallel mode4 X 1 The data on the parallel data lines, D0 to D4, are loaded into the 80-bit serial shift register location addressed at A0 to A3. 0 0 X X X 1 X Data in the 80-bit shift register transfers into the parallel latches that control the switch array. Latches are transparent. X X X X X 0 X Asynchronous operation. All outputs are disabled. Second rank latches are cleared. Remainder of logic is unchanged. 1 X is don’t care. 2 DataI: serial data. 3 N/A means not applicable. 4 DATAOUT remains active in parallel mode and always reflects the state of the MSB of the serial shift register. D CLK Q A0 A1 A2 CLK 16 256 DATA IN (SERIAL) (OUTPUT ENABLE) SER/PAR CE UPDATE OUT0 EN DATA OUT PARALLEL DATA D Q CLK D Q CLK D Q CLK D Q CLK D1 D2 D3 D Q CLK D Q CLK D Q CLK D Q CLK D Q CLK OUT1 EN OUT2 EN OUT3 EN OUT4 EN OUT5 EN OUT6 EN OUT7 EN D LE Q CLR OUT15 EN OUTPUT ENABLE SWITCH MATRIX D0 S D1 Q D0 S D1 Q D0 S D1 Q D0 S D1 Q D0 S D1 Q D0 S D1 Q D0 S D1 Q D0 S D1 Q D0 D Q CLK D4 S D1 Q D0 DECODE D LE Q CLR OUT0 EN D LE OUT0 B0 Q D LE Q OUT0 B1 D LE Q OUT0 B2 D LE Q OUT0 B3 D LE OUT1 B0 Q D LE Q CLR OUT14 EN D LE OUT15 B0 Q D LE OUT15 B1 Q D LE OUT15 B2 Q D Q CLK S D1 Q D0 S D1 Q D0 S D1 Q D0 D LE OUT15 B3 Q OUT8 EN OUT9 EN OUT10 EN OUT11 EN OUT12 EN OUT13 EN OUT14 EN OUT15 EN A3 RESET (OUTPUT ENABLE) Figure 6. Logic Diagram |
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