MK74CB218R IDT, Integrated Device Technology Inc, MK74CB218R Datasheet - Page 3

• Manufacturer Part Number: MK74CB218R
• Description: IC CLK DVR DUAL 1-8 BUFF 28-SSOP
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: 74CB, Buffalo™r
• Type: Fanout Buffer (Distribution)r

Specifications of MK74CB218R

• Number Of Circuits: 2
• Ratio - Input:output: 1:8
• Differential - Input:output: No/No
• Input: LVCMOS
• Output: LVCMOS
• Frequency - Max: 200MHz
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 28-SSOP
• Frequency-max: 200MHz
• Number Of Outputs: 16
• Operating Supply Voltage (max): 3.6V
• Operating Temp Range: 0C to 70C
• Propagation Delay Time: 20ns
• Operating Supply Voltage (min): 3V
• Mounting: Surface Mount
• Pin Count: 28
• Operating Supply Voltage (typ): 3.3V
• Package Type: QSOP
• Input Frequency: 200MHz
• Duty Cycle: 60%
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Maximum Speed
IDT™ / ICS™ DUAL 1 TO 8 BUFFALO™ CLOCK DRIVER
MK74CB218
DUAL 1 TO 8 BUFFALO™ CLOCK DRIVER
The maximum speed at which the chip can operate is limited by the power dissipation in the package. Graph 1
shows the operating frequency plotted against load capacitance per pin for a die temperature of 125°C. This is at
VDD = VDDA = VDDB = 3.3 V, 70°C and with 33 series termination resistors.The termination resistors are
essential because they allow a large proportion of the total power dissipated outside the package. Reducing or
eliminating the series termination will cause an increase in die temperature. It is not recommended to operate the
chip at die temperatures greater than 125°C. Also note that the load capacitance per pin must include PC board
parasitics such as trace capacitance.
If not all outputs of the chip are used, it is possible to operate the chip faster with larger loads. Consult IDT for your
specific requirement.
3
MK74CB218
FAN OUT BUFFER
REV K 051310