Rainbow-electronics DS1202S Manual de usuario descargar pdf (Pagina 8)

DS1202, DS1202S

032697 8/11

TIMING DIAGRAM: READ DATA TRANSFER Figure 5

CDZ

CDD

CDH

017

RESET

CLOCK

DATA INPUT/

OUTPUT

COMMAND BYTE

TIMING DIAGRAM: WRITE DATA TRANSFER Figure 6

RESET

CLOCK

DATA INPUT/

OUTPUT

CWH

CCH

CDH

COMMAND BYTE

NOTES:

1. All voltages are referenced to ground.

2. Logic one voltages are specified at a source current of 1 mA at V

=5V and 0.4 mA at V

=2V, V

for

capacitive loads.

3. Logic zero voltages are specified at a sink current of 4 mA at V

=5V and 1.5 mA at V

=2V.

4. I

CC1

is specified with I/O open, RST set to a logic 0, and clock halt flag=0 (oscillator enabled).

5. I

is specified with the I/O pin open, RST high, SCLK=2 MHz at V

=5V; SCLK=500 KHz, V

=2V and clock

halt flag=0 (oscillator enabled).

6. RST

, SCLK, and I/O all have 40KΩ pull–down resistors to ground.

7. Measured at V

=2.0V or V

=0.8V and 10 ms maximum rise and fall time.

8. Measured at V

=2.4V or V

=0.4V.

9. Load capacitance = 50 pF.

1 2 3 4 5 6 7 8 9 10 11

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Rainbow-electronics DS1202S Manual de usuario Pagina 8

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