ICS8536I-33 Datasheet, PDF (3/19 Pages) Integrated Device Technology – LOW SKEW, 1-TO-6, CRYSTAL OSCILLATOR/LVCMOSTO-3.3V, 2.5V LVPECL/LVCMOS FANOUT BUFFER

ICS8536I-33
LOW SKEW, 1-TO-6, CRYSTAL OSCILLATOR/LVCMOS-TO-3.3V, 2.5V LVPECL/LVCMOS FANOUT BUFFER
TABLE 3A. CONTROL INPUT FUNCTION TABLE
Inputs
Outputs
CLK_EN
CLK_SEL
Selected Source
Q0:Q2
nQ0:nQ2
Q3:Q5
0
0
CLK
Disabled; LOW
Disabled; HIGH
Disabled; LOW
0
1
XTAL_IN, XTAL_OUT Disabled; LOW
Disabled; HIGH
Disabled; LOW
1
0
CLK
Enabled
Enabled
Enabled
1
1
XTAL_IN, XTAL_OUT
Enabled
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
CLK_EN
Disabled
Enabled
nQ0:nQ2
Q0:Q5
FIGURE 1. CLK_EN TIMING DIAGRAM
TABLE 3B. CLOCK INPUT FUNCTION TABLE
Inputs
CLK
0
1
Q0:Q2
LOW
HIGH
Outputs
nQ0:nQ2
HIGH
LOW
Q3:Q5
LOW
HIGH
IDT^™ / ICS^™ 3.3V, 2.5V LVPECL/ LVCMOS FANOUT BUFFER
3
ICS8536CGI-33 REV. B OCTOBER 27, 2008