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TLC2543CDW Fiches technique(PDF) 9 Page - Texas Instruments |
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TLC2543CDW Fiches technique(HTML) 9 Page - Texas Instruments |
9 / 34 page TLC2543C, TLC2543I, TLC2543M 12-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL AND 11 ANALOG INPUTS SLAS079F – DECEMBER 1993 – REVISED NOVEMBER 2001 9 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 PARAMETER MEASUREMENT INFORMATION Access Cycle B Shift in New Multiplexer Address, Simultaneously Shift Out Previous Conversion Value Sample Cycle B A/D Conversion Interval Initialize Initialize MSB LSB Previous Conversion Data MSB LSB B7 B6 B5 B4 C7 B11 A11 A10 A9 A8 A7 A6 A5 A4 A1 A0 Hi-Z State 1 2 3 4 5 6 7 8 11 12 1 I/O CLOCK DATA OUT DATA INPUT CS EOC (see Note A) B3 B2 B1 B0 t(conv) NOTE A: To minimize errors caused by noise at CS, the internal circuitry waits for a setup time after CS ↓ before responding to control input signals. Therefore, no attempt should be made to clock in an address until the minimum CS setup time has elapsed. Figure 9. Timing for 12-Clock Transfer Using CS With MSB First Access Cycle B Shift in New Multiplexer Address, Simultaneously Shift Out Previous Conversion Value Sample Cycle B A/D Conversion Interval Initialize MSB LSB Previous Conversion Data MSB LSB B7 B6 B5 B4 C7 B11 A11 A10 A9 A8 A7 A6 A5 A4 A1 A0 Low Level 1 2 3 4 5 6 7 8 11 12 1 I/O CLOCK DATA OUT DATA INPUT CS EOC Initialize (see Note A) B3 B2 B1 B0 t(conv) NOTE A: To minimize errors caused by noise at CS, the internal circuitry waits for a setup time after CS ↓ before responding to control input signals. Therefore, no attempt should be made to clock in an address until the minimum CS setup time has elapsed. Figure 10. Timing for 12-Clock Transfer Not Using CS With MSB First |
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