MDS 650-40A B

3

Revision 121004

ICS650-40A

External Components

A minimum number of external components are required for proper operation. Decoupling capacitors of

0.01

µF should be connected between VDD and GND pairs. The capacitors should be placed between pins

VDD and GND, VDDOA and GND, and VDDOB and GND as close to the device as possible. A 33

Ω series

terminating resistor should be used on each clock output if the trace is longer than 1 inch. A 25 MHz

On chip capacitors. On Chip capacitors are used for a 18 pF load crystal. Small, 2-3 pF trimming

capacitors are used from pins X1 to ground and X2 to ground to optimize the initial accuracy.

Absolute Maximum Ratings

Stresses above the ratings listed below can cause permanent damage to the ICS650-40A. These ratings,

which are standard values for ICS commercially rated parts, are stress ratings only. Functional operation of

the device at these or any other conditions above those indicated in the operational sections of the

specifications is not implied. Exposure to absolute maximum rating conditions for extended periods can

affect product reliability. Electrical parameters are guaranteed only over the recommended operating

temperature range.

Recommended Operation Conditions

Item

Rating

Supply Voltage, VDD

7 V

All Inputs and Outputs

-0.5 V to VDD+0.5 V

Ambient Operating Temperature

0 to +70

°C

Storage Temperature

-65 to +150

°C

Junction Temperature

125

°C

Soldering Temperature

260

°C

Parameter

Min.

Typ.

Max.

Units

Ambient Operating Temperature

0

+70

°C

Power Supply Voltage (measured in respect to GND)

+3.15

+3.45

V