NEC 421000-80 help please, Google useless!

Fingerlickin_B · 21 July 2008, 13:44

Hi all,

I have been searching with Google for about 2 hours now and all I find are REALLY SUSPICIOUS websites trying to sell me this stuff, but no specs...specs is what I need though!

After a client at work gave me some old PCs I came across this SIMM stick populated with 32 of the above-mentioned chips.

I want to figure out what capacity they are (to determine the memory capacity of the entire stick) so I can figure out if it's worth ordering a vertical SIMM slot for my soon-to-arrive Blizzard!

Soooo.........any chance one of you knows anything at all about these chips?

PZ.

RedskullDC · 21 July 2008, 13:49

Hi Fingerlickin,

Quote:

Originally Posted by Fingerlickin_B

Hi all,

Soooo.........any chance one of you knows anything at all about these chips?

PZ.

Here u go:

http://www.alldatasheet.com/datashee...421000-80.html

Cheers,
Red

Fingerlickin_B · 21 July 2008, 13:54

Thanks Red, I really do appreciate the help...BUT...I've tried loading the page 3 times now and it keeps making my browser (Safari) close "unexpectedly"

PZ.

RedskullDC · 21 July 2008, 14:01

Quote:

Originally Posted by Fingerlickin_B

Thanks Red, I really do appreciate the help...BUT...I've tried loading the page 3 times now and it keeps making my browser (Safari) close "unexpectedly"

PZ.

No probs,

Copy of the datasheet in the zone for you.

Red

Jope · 21 July 2008, 14:04

1M x 1(1M) according to http://jope.fi/conversionchart.htm

Fingerlickin_B · 21 July 2008, 14:04

Quote:

Originally Posted by RedskullDC

No probs,

Copy of the datasheet in the zone for you.

Red

How cool is that?!?!

Thanks heaps man!

PZ.

Fingerlickin_B · 21 July 2008, 14:09

Thanks to you too Jope!

Thanks to both of you...now I know it's a 32mb stick...not bad for free

PZ.

alexh · 21 July 2008, 14:24

Using NEC 421000-80 chips (1Mx1) you would require 256 chips to make 32 Megabytes.

Your SIMM has 32 so it is 4 Megabytes.

(32 * 1 Megabit / 8-bits per byte = 4 Megabytes)

A 4 MiB SIMM with 32-chips?!?

Bin it!

Fingerlickin_B · 21 July 2008, 15:18

Quote:

Originally Posted by alexh

Using NEC 421000-80 chips (1Mx1) you would require 256 chips to make 32 Megabytes.

Your SIMM has 32 so it is 4 Megabytes.

(32 * 1 Megabit / 8-bits per byte = 4 Megabytes)

A 4 MiB SIMM with 32-chips?!?

Bin it!

Guess I missed something there (megabits vs megabytes? not sure, I'm a techo retard

).

If working I'll still keep it though...no working SIMM stick will ever see the bin at my place!

PZ.

Jope · 21 July 2008, 16:09

1 byte = 8 bits.

Memory chip sizes are always reported in bits. So 1Mx1 means 1Mbit of RAM.

21 July 2008, 13:44	#1
Fingerlickin_B Amiga Nut Join Date: Oct 2006 Location: Belco, Australia Posts: 2,242	NEC 421000-80 help please, Google useless! Hi all, I have been searching with Google for about 2 hours now and all I find are REALLY SUSPICIOUS websites trying to sell me this stuff, but no specs...specs is what I need though! After a client at work gave me some old PCs I came across this SIMM stick populated with 32 of the above-mentioned chips. I want to figure out what capacity they are (to determine the memory capacity of the entire stick) so I can figure out if it's worth ordering a vertical SIMM slot for my soon-to-arrive Blizzard! Soooo.........any chance one of you knows anything at all about these chips? PZ.

21 July 2008, 14:24	#8
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,461	Using NEC 421000-80 chips (1Mx1) you would require 256 chips to make 32 Megabytes. Your SIMM has 32 so it is 4 Megabytes. (32 * 1 Megabit / 8-bits per byte = 4 Megabytes) A 4 MiB SIMM with 32-chips?!? Bin it! Last edited by alexh; 21 July 2008 at 14:33.

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21 July 2008, 13:54	#3
Fingerlickin_B Amiga Nut Join Date: Oct 2006 Location: Belco, Australia Posts: 2,242	Thanks Red, I really do appreciate the help...BUT...I've tried loading the page 3 times now and it keeps making my browser (Safari) close "unexpectedly" PZ.

21 July 2008, 14:04	#5
Jope - Join Date: Jul 2003 Location: Helsinki / Finland Age: 43 Posts: 9,910	1M x 1(1M) according to http://jope.fi/conversionchart.htm

21 July 2008, 14:09	#7
Fingerlickin_B Amiga Nut Join Date: Oct 2006 Location: Belco, Australia Posts: 2,242	Thanks to you too Jope! Thanks to both of you...now I know it's a 32mb stick...not bad for free PZ.

21 July 2008, 16:09	#10
Jope - Join Date: Jul 2003 Location: Helsinki / Finland Age: 43 Posts: 9,910	1 byte = 8 bits. Memory chip sizes are always reported in bits. So 1Mx1 means 1Mbit of RAM.

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