ICS8535-11 データシートの表示（PDF） - Integrated Circuit Systems

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ICS8535-11

LOW SKEW, 1-TO-4, CRYSTAL OSCILLATOR/LVCMOS-TO-3.3V LVPECL FANOUT BUFFER

Integrated Circuit Systems 

Integrated

Circuit

Systems, Inc.

ICS8535-11

LOW SKEW, 1-TO-4, CRYSTAL OSCILLATOR/

LVCMOS-TO-3.3V LVPECL FANOUT BUFFER

TABLE 3A. CONTROL INPUT FUNCTION TABLE

Inputs

Outputs

CLK_EN

CLK_SEL

Selected Source

Q0 thru Q3

nQ0 thru nQ3

0

0

CLK

Disabled; LOW

Disabled; HIGH

0

1

XTAL1, XTAL2

Disabled; LOW

Disabled; HIGH

1

0

CLK

Enabled

Enabled

1

1

XTAL1, XTAL2

Enabled

Enabled

After CLK_EN switches, the clock outputs are disabled or enabled following a rising and falling

input clock or crystal oscillator edge as shown in Figure 1.

In the active mode, the state of the outputs are a function of the CLK input as described in Table 3B.

CLK

Disabled

Enabled

CLK_EN

nQ0 - nQ3

Q0 - Q3

FIGURE 1 - CLK_EN TIMING DIAGRAM

TABLE 3B. CLOCK INPUT FUNCTION TABLE

Inputs

CLK

0

1

Q0 thru Q3

LOW

HIGH

Outputs

nQ0 thru nQ3

HIGH

LOW

8535AG-11

www.icst.com/products/hiperclocks.html

3

REV. B JULY 27, 2001

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