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74F640/74F645 pdf datasheet
消耗积分:2 |
格式:rar |
大小:444 |
2008-08-29
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74F640 • 74F645 Octal Bus Transceiver with 3-STATE Outputs
General Description
These devices are octal bus transceivers designed for
asynchronous two-way data flow between the A and B busses.
Both busses are capable of sinking 64 mA, have 3-
STATE outputs, and a common output enable pin. The
direction of data flow is determined by the transmit/receive
(T/R) input. The 74F645 is a high speed/low power version
of the 74F245. The 74F640 is an inverting option of the
74F645.
Features
n Designed for asynchronous two-way data flow between
busses
n Outputs sink 64 mA
n Transmit/receive (T/R) input controls the direction of
data flow
n 74F645 is a lower power, faster version of the 74F245
n 74F640 is an inverting option of the 74F645
General Description
These devices are octal bus transceivers designed for
asynchronous two-way data flow between the A and B busses.
Both busses are capable of sinking 64 mA, have 3-
STATE outputs, and a common output enable pin. The
direction of data flow is determined by the transmit/receive
(T/R) input. The 74F645 is a high speed/low power version
of the 74F245. The 74F640 is an inverting option of the
74F645.
Features
n Designed for asynchronous two-way data flow between
busses
n Outputs sink 64 mA
n Transmit/receive (T/R) input controls the direction of
data flow
n 74F645 is a lower power, faster version of the 74F245
n 74F640 is an inverting option of the 74F645
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