need a 3.3V <-> 5V signal level translator in DIP package

[sr]

I'm looking for a data level translator chip to connect a 5V mcu to a
3.3V radio modem. The ideal chip should provide full 4 way level
translation for rxd,txd,rts and cts signals with no external parts (sort
of a 4x MAX3370). A double 2 way arrangement using two chips would be
still ok though.
Speed and price are not a problem: the data rate will never exceed 38.4
kbps and I'll need only a dozen of these beasts for now; my only
requirement is the DIP package: being still not skilled/equipped for SMD
soldering I'm forced to go for a stone age old DIP part, which makes it
harder to find.
Could anyone suggest some chips with these features? Thanks!

 

[Hal Murray]

I'm looking for a data level translator chip to connect a 5V mcu to a
3.3V radio modem. The ideal chip should provide full 4 way level
translation for rxd,txd,rts and cts signals with no external parts (sort
of a 4x MAX3370). A double 2 way arrangement using two chips would be
still ok though.

5V to 3.3V is easy. It just takes 2 resistors. Sometimes you can
get away with only one if the 3.3V input has good protection diodes.

3.3V to 5V may just work. Read the fine print on the data sheets.
The typical 3.3V outputs are CMOS driving very close to 3.3V.
The typical old TTL input (still emulated by a lot of 5V logic)
was 2.8V min to guarantee a high.

 

[Ecnerwal]

my only
requirement is the DIP package: being still not skilled/equipped for SMD
soldering I'm forced to go for a stone age old DIP part, which makes it
harder to find.

Hand soldering SOIC surface mount parts is really quite easy, using
normal solder and normal irons (well, normal electronics irons, not your
old Weller 100-watt pistol-grip).

 

[Jamie]

Hand soldering SOIC surface mount parts is really quite easy, using
normal solder and normal irons (well, normal electronics irons, not your
old Weller 100-watt pistol-grip).

reminds me of the story of some one I know attempted
to unsolder the display lights from his car stereo unit because
the lights burnt out in the LCD display unit. They only wanted
to charge him $20.00 in labor to change the lights for him.

He used a torch.

needless to say, the final bill for his repair was much more than
$20 bucks.