ICS580-01

GLITCH-FREE CLOCK MULITPLEXER

CLOCK MULTIPLEXER

IDT™ / ICS™ GLITCH-FREE CLOCK MULITPLEXER

3

ICS580-01

REV L 051310

Pin Descriptions

Pin

Number

Pin

Name

Pin

Type

Pin Description

1

SELB

Input

Mux select. Selects INB when high. Internal pull-up.

2

DIV

Input

Time out select. See table above. Internal pull-up.

3

VDDI

Power

Supply for input clocks only. Can be higher than VDDC.

4

INA

Input

Input Clock A.

5

INB

Input

Input Clock B.

6

GND

Power

Connect to ground.

7

OE4

Input

Output enable. Tri-states NO_INB when low. Internal pull-up.

8

OE3

Input

Output enable. Tri-states NO_INA when low. Internal pull-up.

9

OE2

Input

Output enable. Tri-states CLK2 when low. Internal pull-up.

10

GND

Power

Connect to ground.

11

NO_INB

Output

Goes high when clock on INB stops.

12

NO_INA

Output

Goes high when clock on INA stops.

13

CLK2

Output

Clock 2 output. Low skew compared to CLK1.

14

CLK1

Output

Clock 1 output. Low skew compared to CLK2.

15

VDDC

Power

Main chip supply. Output clocks amplitude will match this VDD.

16

OE1

Input

Output enable. Tri-states CLK1 when low. Internal pull-up.