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74ALVC163245 Fiches technique(PDF) 3 Page - Fairchild Semiconductor

No de pièce 74ALVC163245
Description  Low Voltage 16-Bit Dual Supply Translating Transceiver with 3-STATE Outputs
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Fabricant  FAIRCHILD [Fairchild Semiconductor]
Site Internet  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

74ALVC163245 Fiches technique(HTML) 3 Page - Fairchild Semiconductor

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74ALVC163245 Translator Power Up Sequence Recommendations
To guard against power up problems, some simple guide-
lines need to be adhered to. The 74ALVC163245 is
designed so that the control pins (T/Rn, OEn) are supplied
by VCCB. Therefore the first recommendation is to begin by
powering up the control side of the device, VCCB. The OEn
control pins should be ramped with or ahead of VCCB, this
will guard against bus contentions and oscillations as all
A Port and B Port outputs will be disabled. To ensure the
high impedance state during power up or power down, OEn
should be tied to VCCB through a pull up resistor. The mini-
mum value of the resistor is determined by the current
sourcing capability of the driver. Second, the T/Rn control
pins should be placed at logic LOW (0V) level, this will
ensure that the B-side bus pins are configured as inputs to
help guard against bus contention and oscillations. B-side
Data Inputs should be driven to a valid logic level (0V or
VCCB), this will prevent excessive current draw and oscilla-
tions. VCCA can then be powered up after VCCB, however
VCCA must be greater than or equal to VCCB to ensure
proper device operation. Upon completion of these steps
the device can then be configured for the users desired
operation. Following these steps will help to prevent possi-
ble damage to the translator device as well as other system
components.
Logic Diagrams
Please note that these diagrams are provided only for the understanding of logic operations and should not be used to estimate propagation delays.


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Numéro de composants électroniques

No de pièceDescriptionHtml ViewFabricant
74VCX163245 Low Voltage 16-Bit Dual Supply Translating Transceiver with 3-STATE Outputs 1  2  3  4  5  More Fairchild Semiconductor
74VCX164245 Low Voltage 16-Bit Dual Supply Translating Transceiver with 3-STATE Outputs 1  2  3  4  5  More Fairchild Semiconductor
74LVXC3245 8-Bit Dual Supply Configurable Voltage Interface Transceiver with 3-STATE Outputs 1  2  3  4  5  More Fairchild Semiconductor
74LVT162245 Low Voltage 16-Bit Transceiver with 3-STATE Outputs and 25ohm Series Resistors in A Port Outputs 1  2  3  4  5  More Fairchild Semiconductor
FXL2T245 Low Voltage Dual Supply 2-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels and 3-STATE Outputs 1  2  3  4  5  More Fairchild Semiconductor
74LVT16245 Low Voltage 16-Bit Transceiver with 3-STATE Outputs 1  2  3  4  5  More Fairchild Semiconductor
74LVXC164245 16-Bit Dual Supply Configurable Voltage Interface Transceiver with TRI-STATE-R Outputs 1  2  3  4  National Semiconductor (TI)
74LVX3245 8-Bit Dual Supply Translating Transceiver with 3-STATE Outputs 1  2  3  4  5  More Fairchild Semiconductor
SN74LVC2T45 DUAL BIT DUAL SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS 1  2  3  4  5  More Texas Instruments
FXL4245 Low Voltage Dual Supply 8-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels and 3-STATE Outputs 1  2  3  4  5  More Fairchild Semiconductor

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