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| Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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74HB139 - any info?
Does 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? --- ************************************************** **************** * KSI@home KOI8 Net The impossible we do immediately. * * Las Vegas NV, USA Miracles require 24-hour notice. * ************************************************** **************** ** Posted from http://www.teranews.com ** |
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#2
Posted to sci.electronics.repair
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74HB139 - any info?
On Tue, 09 Dec 2008 01:03:53 -0500, Sergey Kubushin put
finger to keyboard and composed: Does 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? SN54AHCT139, SN74AHCT139 Dual 2-line to 4-line Decoders/Demultiplexers: http://www.datasheetarchive.com/data...SA00144064.pdf 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 -- Please remove one 'i' from my address when replying by email. |
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#3
Posted to sci.electronics.repair
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74HB139 - any info?
Franc Zabkar wrote:
On Tue, 09 Dec 2008 01:03:53 -0500, Sergey Kubushin put finger to keyboard and composed: Does 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? SN54AHCT139, SN74AHCT139 Dual 2-line to 4-line Decoders/Demultiplexers: http://www.datasheetarchive.com/data...SA00144064.pdf 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 Ah, I should've noticed!... Thank you for the info. --- ************************************************** **************** * KSI@home KOI8 Net The impossible we do immediately. * * Las Vegas NV, USA Miracles require 24-hour notice. * ************************************************** **************** ** Posted from http://www.teranews.com ** |
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