Welcome, Guest. Please login or register.

Author Topic: is this ZIP RAM?  (Read 2032 times)

Description:

0 Members and 1 Guest are viewing this topic.

Offline rkauer

  • Hero Member
  • *****
  • Join Date: May 2006
  • Posts: 3263
    • Show all replies
Re: is this ZIP RAM?
« on: May 05, 2008, 08:54:08 PM »
 What exactly is the ZIP chips name? With the "name" (code) we can dig the chip type.
Goodbye people.

I\'ll pop on from time to time, RL is acting up.
 

Offline rkauer

  • Hero Member
  • *****
  • Join Date: May 2006
  • Posts: 3263
    • Show all replies
Re: is this ZIP RAM?
« Reply #1 on: May 05, 2008, 10:26:40 PM »
Quote

Zac67 wrote:
I'm not entirely sure this is DRAM - the lengthy package looks strange.
Can't find any decent details on the GD5422 though, only it's 32 bit memory interface and 1 MB max - 4x256K chips for sure.


 To achieve 1Mb you need 8 chips! 4bits x 256kb = 128kb.
Goodbye people.

I\'ll pop on from time to time, RL is acting up.
 

Offline rkauer

  • Hero Member
  • *****
  • Join Date: May 2006
  • Posts: 3263
    • Show all replies
Re: is this ZIP RAM?
« Reply #2 on: May 06, 2008, 08:32:01 PM »
Quote

Zac67 wrote:
8x 4x256K = 32x256K == 8x1M  ;-)


 Nope.

 8x 1/2byte (4bit) x 256k (1/4 Mb) == 1Mb
Goodbye people.

I\'ll pop on from time to time, RL is acting up.