逻辑ic 74hc245n

  wide operating voltage range of 2 v to 6 v
high-current 3-state outputs drive bus
lines directly or up to 15 lsttl loads
low power consumption, 80-μa max icc
typical tpd = 12 ns
±6-ma output drive at 5 v
low input current of 1 μa max
sn54hc245 . . . j or w package
sn74hc245 . . . db, dw, n, ns, or pw package
(top view)
description/ordering information
these octal bus transceivers are designed for asynchronous two-way communication between data buses. the
control-function implementation minimizes external timing requirements.
the devices allow data transmission from the a bus to the b bus or from the b bus to the a bus, depending on
the logic level at the direction-control (dir) input. the output-enable (oe) input can be used to disable the
device so that the buses are effectively isolated.
ordering information
ta package† orderable
part number
top-side
marking
pdip – n tube of 20 sn74hc245n sn74hc245n
–40 c to 85 c
soic – dw
tube of 25 sn74hc245dw
hc245
reel of 2000 sn74hc245dwr
40°85°sop – ns reel of 2000 sn74hc245nsr hc245
ssop – db reel of 2000 sn74hc245dbr hc245
tube of 70 sn74hc245pw
tssop – pw
reel of 2000 sn74hc245pwr hc245
reel of 250 sn74hc245pwt
–55 c to 125 c
cdip – j tube of 20 snj54hc245j snj54hc245j
55°125°cfp – w tube of 85 snj54hc245w snj54hc245w
lccc – fk tube of 55 snj54hc245fk snj54hc245fk
† package drawings, standard packing quantities, thermal data, symbolization, and pcb design guidelines are