DS1077LU-40 Просмотр технического описания (PDF) - Dallas Semiconductor -> Maxim Integrated

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DS1077LU-40

3V EconOscillator/Divider

Dallas Semiconductor -> Maxim Integrated 

TABLE 1

DS1077L

EN0

(BIT)

0

SEL0

(BIT)

0

PDN0

(BIT)

0

CTRL0

(PIN)

1

0

OUT0

(PIN)

Hi-Z

(OUT1 and OUT2)

Hi-Z

CTRL0

FUNCTION

Power-Down*

DEVICE

MODE

Power-Down

Active

1

Master Clk/M

0

1

0

MUX Select

Active

0

Master Clk

1

Hi-Z

1

0

0

Output Enable

Active

0

Master Clk

1

Hi-Z

1

1

0

Output Enable

Active**

0

Master Clk/M

X

0

1

1

Hi-Z

(OUT1 and OUT2) Power-Down

Power-Down

0

Master Clk

Active

1

Hi-Z

Power-Down

X

1

1

Power-Down

0

Master Clk/M

Active

*This mode is for applications where OUT0 is not used, but CTRL0 is used as a device shutdown.

**Default Condition

CONTROL PIN 1 (CTRL1) – A multifunctional input pin that can be selected as an output enable

and/or a power-down. Its function is determined by the user-programmable control register value of

PDN1. (See Table 2.)

TABLE 2

PDN1 CTRL1

(BIT) (PIN)

0

0

CTRL1

FUNCTION

Output Enable

OUT 1

Out Clk

DEVICE MODE

Active*

0

1

Output Enable

Hi-Z

Active*

1

0

1

1

*Default Condition

Power-Down

Power-Down

Out Clk

Hi-Z

(OUT1 and OUT2)

Active

Power-Down

NOTE:

Both CTRL0 and CTRL1 can be configured as power-downs, they are internally “OR” connected so that

either of the control pins may be used to provide a power-down function for the whole device, subject to

appropriate settings of the PDN0 and PDN1 register bits. (See Table 3.)

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