#garfield Logs
Jan 21 2015
#garfield Calendar
00:00 rue_shop3 oh, or in that case, wont chip to canada
00:01 katsmeow-afk cani ship themt o Canadia cheap if it looks like a regular letter envelope?
00:02 rue_shop3 yea, but it might be a funny envelope with 50-100 dips in it :)
00:02 rue_shop3 http://www.aliexpress.com/item/Free-Shipping-74hc165n-hc165-dip/1867394504.html
00:03 rue_shop3 that description is all out of wack, what do I believe?
00:03 katsmeow-afk i used mideval iron and egg ink
00:03 katsmeow-afk one, it's HC and you want LS
00:04 rue_shop3 hc is ok, I just need its brain
00:04 katsmeow-afk err,, ok
00:04 katsmeow-afk i didn't look for HC
00:04 rue_shop3 I have 24 inputs I need to feed a 16 pin microcontroller
00:04 rue_shop3 any family is ok
00:04 rue_shop3 its just a few khz scan bursts
00:04 rue_shop3 for an alarm monitor
00:05 katsmeow-afk well,, crap, i also cannot search for "not in usa"
00:05 rue_shop3 sure you can, "lowest price + shipping"
00:05 rue_shop3 :)
00:06 rue_shop3 did NXP make logic chips?
00:06 katsmeow-afk but i fall over free shipping in usa
00:06 katsmeow-afk yeas
00:06 katsmeow-afk NXP was Phillips
00:06 rue_shop3 ok
00:06 e_shop3 gets d
00:06 rue_shop3 so, $12/50 might be a good price?
00:07 rue_shop3 oh its $12/100
00:07 rue_shop3 http://www.aliexpress.com/item/Free-Shipping-100pcs-lot-DIP-74HC165N-74HC165-DIP-16-8-bit-Parallel-Load-Shift-Register-Logic/1696595856.html
00:07 rue_shop3 I dont trust that one, looks like they took an empty dip and lasered a generic number into it
00:09 rue_shop3 http://www.aliexpress.com/item/100-PCS-SN74HC165N-DIP-16-SN74HC165-74HC165N-74HC165-8-BIT-PARALLEL-LOAD-SHIFT-REGISTERS/724751751.html
00:09 rue_shop3 $30/100
00:10 rue_shop3 and their TI (supposedly)
00:10 katsmeow-afk yeas, that's the catch (supposedly)
00:10 rue_shop3 so far, I'v not recieved any fake semiconductors
00:10 rue_shop3 we have yet to see how the SSR's hold up, but they aren't fake and so far they work
00:11 katsmeow-afk i found a wonderful deal in Norway the otehr day, butif anything was wrong, like them being fakes, getting it set right would have been impossib;e
00:11 rue_shop3 well, the idea is that I pay an amount that makes it not matter
00:11 rue_shop3 the sellers dont want bad feedback
00:12 rue_shop3 uh, hmm, some of these sellers are pretty green, 5 feedbacks?
00:12 tsmeow-afk ponders using 8k srams as ad
00:12 rue_shop3 sure, flip an address line for the multiplication table
00:12 katsmeow-afk 12 input = 4 tripple inputs (2 for operands, one for carry)
00:13 katsmeow-afk so each is a 4bit adder with carry in on each bit
00:13 rue_shop3 how about a prediction ram
00:13 katsmeow-afk i wantes simple
00:13 katsmeow-afk arggg, brb
00:16 e_shop3 places a 74LS181 on kats keyb
00:17 rue_shop3 http://www.aliexpress.com/item/100-PCS-SN74HC165N-DIP-16-SN74HC165-74HC165N-74HC165-8-BIT-PARALLEL-LOAD-SHIFT-REGISTERS/724751751.html
00:19 katsmeow-afk bak
00:19 katsmeow-afk a string of 181 and 182 eats up time
00:20 katsmeow-afk besides, i have way more 8k 25ns rams than i can possibly ever use
00:21 katsmeow-afk for your shifter, why not use your old 374 trick?
00:21 katsmeow-afk use a 574, make it easier
00:23 rue_house too many jumpers
00:23 rue_house wait
00:23 rue_house its parallel to serial
00:24 rue_house play with OE?
00:24 rue_house no that wouldn't work
00:24 rue_house I got what must be 100 '164 for serial to parallel
00:25 rue_house when I realized I could use them to serially operate hd44780 lcds
00:25 katsmeow-afk tie outputs to inputs, tri state it, clock in data, trisatte the cpu, untristate the latch, clock out the data
00:25 katsmeow-afk i have no 181
00:25 rue_house the inputs might get offended as other inputs states go by
00:25 rue_house I have 1
00:26 rue_house I plan to play with it one day
00:26 katsmeow-afk i have 5000 8kx8 rams ,, i think i paid $25 for them
00:26 rue_house lots of better things to do in the meantime
00:26 rue_house hey, do you have an static ram with seperate io lines?
00:26 rue_house 1 bit?
00:26 rue_house I dont know if they did that with static
00:26 katsmeow-afk i think i have a dram with separate lines
00:27 rue_house I'm sure there were some 1 bit static ram chips
00:27 katsmeow-afk i don't recall having one
00:27 rue_house hmm
00:27 rue_house make a nice sample storage thing
00:28 rue_house hah, I destroyed my todo list for tonight
00:28 rue_house I got half of one thing done
00:28 katsmeow-afk oh, i have some 2Ghz(?) serial-to-parallel i wann amake a sampler with
00:28 rue_house eek
00:28 rue_house wow
00:29 katsmeow-afk well, i can clock it bloody fast and get accurate as heck timing
00:30 katsmeow-afk basicaly, "did it transition within 1/2 nanosec of when it should?"
00:35 rue_house what kinda slew rates is that at!?
00:35 rue_house or is it differential?
00:35 katsmeow-afk diff in, single-ended out, iirc
00:37 katsmeow-afk i have some ecl version of the 74f269 , 8bits, counts at 2.2Ghz
00:37 e_house mentally queries 269 and gets back 'multiple
00:37 katsmeow-afk which reminds me, i do have 100 pcs of 74F283
00:38 katsmeow-afk 269 is a 120/145Mhz 8-bit counter
00:38 rue_house oh
00:38 rue_house synchronous?
00:39 tsmeow-afk
00:39 katsmeow-afk if you cannot find 165, look for 299
00:40 rue_house did the two warner brother chipmunks have names?
00:40 katsmeow-afk prety sure they did, but don't remember them
00:40 rue_house http://hackaday.com/2015/01/20/a-portable-kim-1/
00:43 katsmeow-afk The MC10/100EP445 is an integrated 8–bit differential serial to
00:43 katsmeow-afk parallel data converter with asynchronous data synchronization. The
00:43 katsmeow-afk device has two modes of operation. CKSEL HIGH mode is designed
00:43 katsmeow-afk to operate NRZ data rates of up to 3.3 Gb/s,
00:43 katsmeow-afk 300 ps Propagation Delay
00:43 katsmeow-afk • 5.0 Gb/s Typical Data Rate for CLKSEL LOW Mode
00:43 katsmeow-afk • Differential Clock and Serial Inputs
00:44 rue_house wow
00:44 rue_house imagine the 8 pixel scope you could make with that
00:44 katsmeow-afk and the paralle to serial..........
00:44 katsmeow-afk The MC10/100EP446 is an integrated 8-bit parallel to serial data
00:44 katsmeow-afk converter. The device is designed with unique circuit topology to
00:44 katsmeow-afk operate for NRZ data rates up to 3.2 Gb/s.
00:44 rue_house 8x2
00:44 rue_house heh, trigger level would be easy to work out :0
00:45 rue_house :)
00:49 katsmeow-afk i figuredif i ran two serial-parallel converters per bit line, one set to upper threshold and one to lower threshold (for ttl, or cmos, or whatever), then the two could tell me if the logic was in between, or met legal thresholds for 0 or 1
00:50 katsmeow-afk and for practical purposes, the sample resoluton is set by how fast the ram is i store the parallel outputs in
00:51 katsmeow-afk 15 ns ram is 67Mhz, so you see there's hoops tobe jumped thruto push it to the Ghz range
00:52 katsmeow-afk if i use 10 damnedfast latches latched serially, and use them to hold the data for 15ns rams, i can clock the convertors at 670 Mhz
00:54 katsmeow-afk that's 1.5ns resolution
01:00 katsmeow-afk no F290 and poele want money for the 75ls290
01:03 katsmeow-afk i am a lil surprised how much chip prices have gone up in the last yr
01:06 rue_house hmm
01:08 tsmeow-afk looks t
01:12 katsmeow-afk 300pcs 74ACT373,make them be your shifter , $20
01:12 rue_house http://www.thingiverse.com/thing:645138
01:12 rue_house I made a thing
01:13 rue_house I put a link in for e_goto's thermometer, even tho they screwed up the title
01:14 katsmeow-afk ah, you made a box
01:14 rue_house I did! I did!
01:15 rue_house it friction fits those thermometers tho
01:18 katsmeow-afk MBRS340T3G 100pcs $4
01:18 rue_house whats that?
01:18 rue_house regualtor?
01:19 rue_house 3V?
01:19 rue_house +
01:19 katsmeow-afk programmable + regulator
01:19 rue_house :) they are all programmable
01:19 rue_house some just lower than others
01:20 rue_house some down to 1.25V, some down to 24
01:20 tsmeow-afk
01:20 katsmeow-afk i don;t have enough brain sells awace too proceccit now
01:20 rue_house http://www.thingiverse.com/rue_mohr/designs
01:21 rue_house people really liked my pcb clamp
01:22 katsmeow-afk wait, the MBRS340T3 is a schottky diode 40v 3amp
01:22 rue_house oh
01:22 rue_house that would explain the MBRS
01:23 rue_house and the 3 :)
01:23 katsmeow-afk and the 40
01:23 rue_house LM340T I could see
01:24 katsmeow-afk MMBTis like 2N tho, but usually smd
01:24 katsmeow-afk ditto KST
01:24 rue_house gnight kat!
01:24 katsmeow-afk gnites rue
01:24 e_house collapses ont eh keyb
01:25 rue_house zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
21:16 katsmeow-afk i wonder if Floyd considered any color other than pink
21:17 Tom_itx it would have ruined a legend
21:18 tsmeow-afk
21:18 Tom_itx bright side of the moon isn't very mysterious either
21:19 katsmeow-afk what about the dark side?
21:20 Tom_itx ask darth vader
21:20 katsmeow-afk he was their drummer?
21:43 tsmeow-afk is listening to one of their albums
21:54 katsmeow-afk it's already 9:30pm, i wonder who is stealing all the time
21:54 Tom_itx mr sandman
22:06 katsmeow-afk 3 Toms, 4 rues, and one kat
22:10 Tom_L 3?
22:10 katsmeow-afk zlog is your's?
22:11 katsmeow-afk did you know <that color> Floyd released a new album in Nov 2014?
22:12 Tom_itx no
22:13 katsmeow-afk want me to let you know?
22:13 katsmeow-afk https://en.wikipedia.org/wiki/The_Endless_River
22:14 katsmeow-afk The Endless River became the most pre-ordered album of all time on Amazon UK, and debuted at number one in several countries. The vinyl edition was the fastest-selling UK vinyl release of 2014 and the fastest-selling since 1997.
22:16 Tom_L huh
22:50 katsmeow-afk http://www.linear.com/product/LT4320