Clock Distribution Buffer Banks Mobile SDRAM PRODUCT DESCRIPTION

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Clock Distribution Buffer Banks Mobile SDRAM PRODUCT DESCRIPTION

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CB664
Clock Distribution Buffer Banks Mobile SDRAM
PRODUCT DESCRIPTION
device high fanout system clock buffer. primary application distribute clocks needed support wide range applications such SDRAM clocks. This device provides Skew distribution clock heavily loaded. important application this component where long traces used transport clocks from their generating devices their loads. creation degradation waveform rise fall times greatly reduced running single reference clock trace this device then using regenerate clock that drives shorter traces. When using these devices therefore minimized board real estate saved.
output buffer high clock fanout applications Output individually disabled with VDD=3.3 volts Ouput frequency range 250ps skew between output clocks. 16-pin SSOP TSSOP package
BLOCK DIAGRAM
Control SDATA SCLK SDR[0,1]
SDR0 SDR1 CLKIN SDR2 SDATA SDR6 SDR5 SDR4 SDR3 SCLK
REFIN
SDR2
SDR[3,4]
SDR[5,6]
DESCRIPTION
2,3,6,11,12,15,16 10,14 Name CLKIN SDR(0:6) SDATA SCLK TYPE BUF1 Description This connected input reference clock. This clock must range 10.0 100.0 Mhz. skew output clock serial data 2-wire control interface. internal pull-up resistor. Serial clock 2-wire control interface. internal pull-up resistor. COMMON Ground. Power output clock buffers core logic.
MAXIMUM RATINGS
Voltage Relative VSS: Voltage Relative VDD: Storage Temperature: Operating Temperature: Maximum Power Supply: -0.3V 0.3V This device contains circuitry protect inputs against damage high static voltages electric field; however, precautions should taken avoid application voltage higher than maximum rated voltages this circuit. proper operation, Vout should constrained range: VSS<(Vin Vout)<VDD
INTERNATIONAL MICROCIRCUITS, INC. COCHES MILPITAS, 95035. TEL: 408-263-6300. 408-263-6571
Rev.1.5
5/6/1999 Page

Clock Distribution Buffer Banks Mobile SDRAM PRODUCT DESCRIPTION

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