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.
