SN54AHCT139, SN74AHCT139 Dual 2-line to 4-line Decoders/Demultiplexers: Page 2 of the datasheet has a list of top-side marking codes: SSOP ? DB Tape and reel SN74AHCT139DBR HB139 TSSOP ? PW Tape and reel SN74AHCT139PWR HB139 TVSOP ? DGV Tape and reel SN74AHCT139DGVR HB139…
Read the full replyDoes anybody know what 74HB139 is?
It might be SN74HB139, 54HB139 or something like this. 16 pin TSSOP, made by Texas Instruments, marked as follows:
HB139 (TI Logo)97K KDT6
I'm 100% sure it is good old 74xx139 but what the heck is "HB" ? Google brings only a bunch of good chinese guys that have everything in stock, whatever it's called, but not even a single piece of information...
It _IS_ "HB", not "HC". There are several of those and all are exactly the same.
Any info on HB logic family?
On Tue, 09 Dec 2008 01:03:53 -0500, Sergey Kubushin put finger to keyboard and composed:
SN54AHCT139, SN74AHCT139 Dual 2-line to 4-line Decoders/Demultiplexers:
Page 2 of the datasheet has a list of top-side marking codes:
SSOP ? DB Tape and reel SN74AHCT139DBR HB139 TSSOP ? PW Tape and reel SN74AHCT139PWR HB139 TVSOP ? DGV Tape and reel SN74AHCT139DGVR HB139
- Franc Zabkar
Ah, I should've noticed!...
Thank you for the info.
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