ICS542
CLOCK DIVIDER CLOCK DIVIDER
IDT™ / ICS™
CLOCK DIVIDER 4
ICS542 REV J 051310
DC Electrical Characteristics
Unless stated otherwise, VDD = 3.3 V ±5%, Ambient Temp. 0 to +70° C (commercial), -40 to +85° C (industrial)
AC Electrical Characteristics
Unless stated otherwise, VDD = 3.3 V ±5%, Ambient Temp. 0 to +70° C (commercial), -40 to +85° C (industrial)
Thermal Characteristics
Parameter Symbol Conditions Min. Typ. Max. Units
Operating Voltage VDD 3.0 5.5 V
Input High Voltage, V
IH
ICLK (pin 1) VDD/2+1 VDD/2 V
Input Low Voltage V
IL
ICLK (pin 1) VDD/2 VDD/2-1 V
Input High Voltage V
IH
S0, S1, OE 2 V
Input Low Voltage V
IL
S0, S1, OE 0.8 V
Output High Voltage V
OH
I
OH
= -25 mA 2.4 V
Output Low Voltage V
OL
I
OL
= 25 mA 0.4 V
Operating Supply Current I
DD
No Load, 5.0 V,
11 sel
11 mA
Operating Supply Current I
DD
No Load, 3.3 V,
11 sel
7mA
Short Circuit Current I
OS
±40 mA
Input Capacitance C
IN
S0, S1, OE 4 pF
Nominal Output Impedance Z
O
at VDD/2 20 Ω
Parameter Symbol Conditions Min. Typ. Max. Units
Input Frequency, clock input VDD = 5 V 0 156 MHz
Input Frequency, clock input VDD = 3.3 V 0 156 MHz
Output Rise Time t
OR
0.8 to 2.0 V 1 ns
Output Fall Time t
OF
2.0 to 0.8 V 1 ns
Duty Cycle at VDD/2 45 49 to 51 55 %
Skew of Output Clocks rising edges at VDD/2 500 ps
Propagation Delay ICLK to CLK 15 ns
Parameter Symbol Conditions Min. Typ. Max. Units
Thermal Resistance Junction to
Ambient
θ
JA
Still air 150 ° C/W
θ
JA
1 m/s air flow 140 ° C/W
θ
JA
3 m/s air flow 120 ° C/W
Thermal Resistance Junction to Case θ
JC
40 ° C/W
