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T6819-TBQ Datasheet(PDF) 4 Page - ATMEL Corporation |
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T6819-TBQ Datasheet(HTML) 4 Page - ATMEL Corporation |
4 / 16 page 4 T6819/T6829 [Preliminary] 4531B–BCD–11/03 Functional Description Serial Interface Data transfer starts with the falling edge of the CS signal. Data must appear at DI syn- chronized to CLK and are accepted on the falling edge of the CLK signal. LSB (bit 0, SRR) has to be transferred first. Execution of new input data is enabled on the rising edge of the CS signal. When CS is high, pin DO is in tristate condition. This output is enabled on the falling edge of CS. Output data will change their state with the rising edge of CLK and stay stable until the next rising edge of CLK appears. LSB (bit 0, TP) is transferred first. Figure 3. Data Transfer Table 1. Input Data Protocol SRR LS1 HS1 LS2 HS2 LS3 HS3 PL1 PH1 PL2 PH2 PL3 PH3 OLD OCS SI CS DI CLK DO TP S1L S1H S2L S2H S3L S3H n. u. n. u. n. u. n. u. n. u. n. u. OVL INH PSF 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Bit Input Register Function 0SRR Status register reset (high = reset; the bits PSF and OVL in the output data register are set to low) 1 LS1 Controls output LS1 (high = switch output LS1 on) 2 HS1 Controls output HS1 (high = switch output HS1 on) 3 LS2 See LS1 4 HS2 See HS1 5 LS3 See LS1 6 HS3 See HS1 7 PL1 Output LS1 additionally controlled by PWM Input 8 PH1 Output HS1 additionally controlled by PWM Input 9 PL2 See PL1 10 PH2 See PH1 11 PL3 See PL1 12 PH3 See PH1 13 OLD Open load detection (low = on) 14 OCS Overcurrent shutdown (high = overcurrent shutdown is active) 15 SI Software inhibit; low = standby, high = normal operation (data transfer is not affected by standby function because the digital part is still powered) |
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Similar Description - T6819-TBQ |
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