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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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 Posted: Fri Jun 06, 2014 1:13 am Post subject: CPU Shack: Some interesting MCUs all $2 |
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45x Conexant RL56CSM/3 R7177-24 ARM 40MHz MCM
These are 4 die communications MCMs. Looking at the back you see 4 squares of connections.
Those are thermal vias for each die. There are 3 DDP (Digital Data Pumps) and one for the ARM processor.
The DDPs can handle Fax, modem, ISDN, or Voice
45x Rockwell L39/U L3903-57 20.5MHz Enhanced 65C02
These are based on the Rockwell 6500, itself a 6502 derivative. They add 43 new instructions (mainly bit manip and arithmetic). They were commonly used to be the brain of modems and other comms gear.
45x National Semi. NS405-C12N 12MHz 8048 SoC with video controller
These are an early SoC designed to take care of all functions of a terminal (old school thin client). They even handle the CRT/graphics controlling duties.
45x National Semi. INS8049L11UGR/N 11MHz XMOS 8049 (Nat Semi's enhanced NMOS process)
These are all $2 each , $1 off for every 4 ya buy
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Qwerty
Joined: 20 May 2005
Posts: 3141
Location: Germany
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| Posted: Fri Jun 06, 2014 1:28 am Post subject: |
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One of each for me. Thanks!
P.S.: First!  |
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tunder10
Joined: 08 Nov 2006
Posts: 5001
Location: italy
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| Posted: Fri Jun 06, 2014 1:32 am Post subject: |
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| 1 x Rockwell L39/U L3903-57 20.5MHz Enhanced 65C02 , thanks |
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aberco
Joined: 05 Sep 2013
Posts: 2655
Location: Paris France
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| Posted: Fri Jun 06, 2014 4:37 am Post subject: |
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4x Conexant RL56CSM/3 R7177-24 ARM 40MHz MCM
2x Rockwell L39/U L3903-57 20.5MHz Enhanced 65C02
2x National Semi. NS405-C12N 12MHz 8048 SoC with video controller |
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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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aberco
Joined: 05 Sep 2013
Posts: 2655
Location: Paris France
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| Posted: Fri Jun 06, 2014 3:24 pm Post subject: |
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This is cooler than i4004
I will add that most rockwell (and further conexant) chips are MCM. In the rockwell PLCC you can have anything between 2 and 3 dies.
John I will check what rockwell chips I have unpacked, I may retract if I have these already.
[edit]yeah I have unpacked L39/U, but the die overheated and it does not look nice, so I will need them. L39 are single die. |
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mavroxur
Joined: 06 Jul 2005
Posts: 1192
Location: Wichita Falls, TX
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| Posted: Fri Jun 06, 2014 10:43 pm Post subject: |
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I'll take
1x Conexant RL56CSM/3 R7177-24 ARM 40MHz MCM
1x Rockwell L39/U L3903-57 20.5MHz Enhanced 65C02 |
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Tegranphos
Joined: 04 Oct 2009
Posts: 806
Location: Navarra - Spain
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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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adumont
Joined: 19 Feb 2022
Posts: 2
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| Posted: Sat Feb 19, 2022 6:59 pm Post subject: |
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Sorry to be late to the party, do you still have some "L39/U L3903-57 20.5MHz Enhanced 65C02" ? I'd happily buy you a couple of them.
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