Acer Liquid Ram...

[Guest Charlton22]

Well,

After some research I figured this! I know that some won't believe!

But this is what I found.. Maybe the is a mistake.. Or it's impossible to access..

But this is what I found!

According to this A1 motherboard... Our Ram Part Number is JW258

According to this data sheet, our Ram which is JW258 -- Which Product Marketing Part Number is MT29C4G48MAPLCJA-6 IT

Now.... MT29C4G48MAPLCJA-6 IT in other words...

Which means...

Mt -- Micro Technology

29c -- Product Family 29C = NAND + LP-DRAM MCP

4G -- Nand Density == 4Gb

48M -- LP-DRAM Density == 2,048Mb

A -- Operation Voltage == 1.8V (1.70–1.95V)

P -- NAND Flash Configuration == (Width = x16) (Density = 4Gb) (Generation = First)

L -- LP-DRAM Configuration == (Type = SDR) (Width = x16) (Density = 512Mb) (Generation = Second)

C -- Chip Count == (CE#,CS# = 1,2 ) (Chip Count = 1 NAND, 2 LP-DRAM)

JA -- Package Codes == (JA = 137-ball TFBGA)

-6 -- LP-DRAM Access Time == (-6 == 166 MHz CL3)

IT -- Operating Temperature Range --(IT = Industrial (–40° to +85°C))

& Yes.. I don't give up so quickly :lol:

So What do you think?

Like to Data Sheet which info was taken from...

Edited July 1, 2010 by Charlton22

[Guest bjalle]

This is interesting indeed, a friend of mine recently bought a Samasung Galaxy S with a suposed 512 MB of ram but due to some kernel issues only 256MB is avaiable (They are fixing this with an update). Given the unusual stuff with the kernel we have might this also be the case for our Liquids?

[Guest Charlton22]

This is interesting indeed, a friend of mine recently bought a Samasung Galaxy S with a suposed 512 MB of ram but due to some kernel issues only 256MB is avaiable (They are fixing this with an update). Given the unusual stuff with the kernel we have might this also be the case for our Liquids?

Yes it seems to be interesting...

Phh where are you? Can Acer limit the ROM from Karnel?

[Guest chingy1788]

L -- LP-DRAM Configuration == (Type = SDR) (Width = x16) (Density = 512Mb) (Generation = Second)

L is actually L -- LP-DRAM Configuration == (Type = DDR) (Width = x32) (Density = 1Gb) (Generation = Second)

so...

P -- NAND Flash Configuration == (Width = x16) (Density = 4Gb) (Generation = First)

L -- LP-DRAM Configuration == (Type = DDR) (Width = x32) (Density = 1Gb) (Generation = First)

C -- Chip Count == (CE#,CS# = 1,2 ) (Chip Count = 1 NAND, 2 LP-DRAM)

hmm

1x 4Gb = 512MB NAND

2x 1Gb = 2x 128MB = 256MB LP-DRAM

NAND is the ROM

LP-DRAM is... of course RAM

oh well 256MB RAM chip

Edited July 1, 2010 by chingy1788

[Guest Charlton22]

L is actually L -- LP-DRAM Configuration == (Type = DDR) (Width = x32) (Density = 1Gb) (Generation = Second)

so...

P -- NAND Flash Configuration == (Width = x16) (Density = 4Gb) (Generation = First)

L -- LP-DRAM Configuration == (Type = DDR) (Width = x32) (Density = 1Gb) (Generation = Second)

C -- Chip Count == (CE#,CS# = 1,2 ) (Chip Count = 1 NAND, 2 LP-DRAM)

hmm

1x 4Gb = 512MB NAND

2x 1Gb = 2x 128MB = 256MB LP-DRAM

NAND is the ROM

LP-DRAM is... of course RAM

oh well 256MB RAM chip

LOL sry i'm lost... Cannot understand...

[Guest chingy1788]

LOL sry i'm lost... Cannot understand...

P -- NAND Flash Configuration == (Width = x16) (Density = 4Gb) (Generation = First)

L -- LP-DRAM Configuration == (Type = DDR) (Width = x32) (Density = 1Gb) (Generation = Second)

C -- Chip Count == (CE#,CS# = 1,2 ) (Chip Count = 1 NAND, 2 LP-DRAM)

Here P is telling us the specs of the ROM

NAND is essentially Flash memory, used for ROM. This is where the kernel, android OS, data, user data, cache partitions are stored. The chip Density of this NAND is 4Gb (convert to Bytes, and we get 512MB)

L is describing the actual RAM (it does say LP-DRAM, its some kind of DRAM (RAM), not sure what LP means). Here it says a RAM chip is 1Gb, convert to Bytes, we get 128MB.

C Describes the chip configurations. according to the table in the spec sheet, C means we have 1 NAND and 2 RAM chips

1 NAND chip = 512MB ROM

2 RAM chips = 2x 128MB = 256MB RAM

[Guest gengaro86]

The L field is actually L, looking at the table field you posted you will retrieve this infos:

L -- LP-DRAM Configuration == (Type = DDR) (Width = x32) (Density = 1Gb) (Generation = First)

The filed after the L is the Chip Field count, which actually is corresponding to letter C in the table you posted:

C -- Chip Count == (CE#,CS# = 1,2 ) (Chip Count = 1 NAND, 2 LP-DRAM)

So, doing some basics calculation you'll convert

1Gb (Gigabits) in Bytes and have that 1Gb is actually 128MB, but we have Chip Counts for LP-DRAM to 2, so:

128MB x 2 = 256MB

We have 256MB of RAM.

[Guest chingy1788]

Just some interesting stats...

This is stuff about our RAM

-6 -- LP-DRAM Access Time == (-6 == 166 MHz CL3)

L -- LP-DRAM Configuration == (Type = DDR) (Width = x32) (Density = 1Gb) (Generation = Second)

From this I read, the RAM is DDR and runs at 166MHz. The Bus width is 32bits

so our RAM throughput is 166MHz * 2(DDR) * 32bits = 10624Mbits/s = 1328MBytes/s = ~1.3GB/s

not bad, it has the RAM throughput of an old PC from 2000 - 2002

[Guest honghong]

SO..WE CAN'T USE 3.0? T^T

[Guest Charlton22]

SO..WE CAN'T USE 3.0? T^T

And........ what should be that?

[Guest rithchen]

I think you misunderstanding the spec,

As the datasheet says:

NAND Flash Configuration => P x16 4Gb First,

LP-DRAM Configuration => L DDR x32 1Gb First,

Count => C 1, 2 1 NAND, 2 LP-DRAM

So we can get the nand flash is 4Gb X 1 / 8 = 512 MB (must div 8 to byte)

and lp-dram is 1Gb X 2 / 8 = 256 MB (i know it's sad, but just face it)

Althougt i feel it's a pitty too,

but we still have the greatest dev team!!

thanks all the devs hard work for our device, i am pround of you guys! :lol:

sorry for the op, my typing speed is very slow

Edited July 1, 2010 by rithchen

[Guest HustlinDaily]

I hate the way Acer handled this. All announcements about the E was that it was the same phone with 2.1. Had I known that it had twice the ram, I would have waited 2 months to purchase it. It would probably last an extra year as Gingerbread would be ported and worth the extra $100. Now I have to get a new phone next year.

[Guest Vailo]

I don't get it guys. Why can't you just be content with what you have? Why do you want gingerbread so much, is it faster, does it give you more features, is it something you really need?

[Guest HustlinDaily]

Me personally like to have up to date stuff. I think newer features can only enhance the user experience.

I bought my Liquid (about two months ago) expecting FroYo to be the highest version which will run on the phone (and the way things are going, that appears correct). My original plan was to buy it, use it for a year and buy another phone next year (after Gingerbread comes out).

Just saying I wish Acer announced the specs of the Liquid E when they announced the Liquid E. Almost every site was saying it would be the exact same phone with Eclair instead of Donut. It turned out to have twice the ram.

Edited July 2, 2010 by HustlinDaily