MC100ES6254/D

TIMING SOLUTIONS

3

a.

Absolute maximum continuous ratings are those maximum values beyond which damage to the device may occur. Exposure to these conditions

or conditions beyond those indicated may adversely affect device reliability. Functional operation at absolute-maximum-rated conditions is not

implied.

Table 1. PIN CONFIGURATION

Pin

I/O

Type

Function

CLK0, CLK0

Input

LVPECL

Differential reference clock signal input 0

CLK1, CLK1

Input

LVPECL

Differential reference clock signal input 1

OEA, OEB

Input

LVCMOS

Output enable

SEL0, SEL1

Input

LVCMOS

Clock switch select

QA[0-2], QA[0-2]

QB[0-2], QB[0-2]

Output

LVPECL

Differential clock outputs (banks A and B)

GND

Supply

GND

Negative power supply

Supply

VCC

DC and AC operation

Table 2. FUNCTION TABLE

Control

Default

0

1

OEA

0

QA[0-2], Qx[0-2] are active. Deassertion of OE can be

asynchronous to the reference clock without generation

of output runt pulses

QA[0-2] = L, QA[0-2] = H (outputs disabled). Assertion

of OE can be asynchronous to the reference clock

without generation of output runt pulses

OEB

0

QA[0-2], Qx[0-2] are active. Deassertion of OE can be

asynchronous to the reference clock without generation

of output runt pulses

QA[0-2] = L, QA[0-2] = H (outputs disabled). Assertion

of OE can be asynchronous to the reference clock

without generation of output runt pulses

SEL0, SEL1

00

Refer to Table 3

Table 3. CLOCK SELECT CONTROL

SEL0

SEL1

CLK0 routed to

CLK1 routed to

Application Mode

0

0

QA[0:2] and QB[0:2]

---

1:6 fanout of CLK0

0

1

---

QA[0:2] and QB[0:2]

1:6 fanout of CLK1

1

0

QA[0:2]

QB[0:2]

Dual 1:3 buffer

1

1

QB[0:2]

QA[0:2]

Dual 1:3 buffer (crossed)

Symbol

Characteristics

Min

Max

Unit

Condition

Supply Voltage

-0.3

3.6

V

DC Input Voltage

-0.3

V

DC Output Voltage

-0.3

V

DC Input Current

±20

mA

DC Output Current

±50

mA

Storage temperature

-65

125

°C

Freescale Semiconductor, Inc.

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