parity – DeviceLog.com https://www.devicelog.com/mrj/ device, part, spec Sat, 04 Jun 2016 16:22:33 +0000 mrj hourly 1 https://wordpress.org/?v=6.6.2 Samsung 1MB DRAM 30pin SIMM https://www.devicelog.com/mrj/memory/dram/original-dram/samsung-30pin-1mb-dram-simm/ https://www.devicelog.com/mrj/memory/dram/original-dram/samsung-30pin-1mb-dram-simm/#comments Fri, 18 May 2012 11:01:28 +0000 https://www.devicelog.com/?p=326-mrj
Samsung 1MB DRAM SIMM backside (KMM591000AN-7, KMM591000BN-7) (KM44C1000AJ-7, KM44C1000BJ-7)

Samsung 1MB DRAM SIMM backside (KMM591000AN-7, KMM591000BN-7) (KM44C1000AJ-7, KM44C1000BJ-7)

KMM591000AN-7 is composed two KM44C1000AJ-7 chips and one KM44C1000CJ-7 chip. KMM591000BN-7 is composed with two KM44C1000BJ-7 chips and one KM44C1000CJ-7 chip. They are 1MB DRAM SIMMs produced by Samsung Electronics.

  • Manufacturing Company : Samsung Electronics
  • Manufactured Year : 1992 / 1993
  • Country of manufacture : South Korea
  • Module Features : 30pin, SIMM, Parity RAM
  • Memory Capacity : 1MB
  • BandWidth : 8bit
  • Speed Feature : 70ns(tRAC)
  • Chip Composition :
    KMM591000AN-7 = KM44C1000AJ-7 × 2 + KM44C1000CJ-7
    KMM591000BN-7 = KM44C1000BJ-7 × 2 + KM44C1000CJ-7
]]> https://www.devicelog.com/memory/dram/original-dram/samsung-30pin-1mb-dram-simm/feed/ 1 Goldstar 1MB DRAM 30pin SIMM (GM71C4400B + GMC71C1000B) https://www.devicelog.com/mrj/memory/dram/original-dram/goldstar-30pin-1mb-dram-simm-gm71c4400b-gmc71c1000b/ https://www.devicelog.com/mrj/memory/dram/original-dram/goldstar-30pin-1mb-dram-simm-gm71c4400b-gmc71c1000b/#respond Tue, 02 Aug 2011 09:45:54 +0000 https://www.devicelog.com/?p=46-mrj This SIMM plated with golden color. The plating color and the board form of this SIMM is different from the SIMM with GM71C4400A.

GM71C4400B is 1M × 4bit. And GM71C1000B is 1M × 4bit. The memory capacity and the function of this SIMM is not different from the SIMM with GM71C4400A and GM71C1000.

Goldstar 30pin 1MB DRAM SIMM (GM71C4400B + GMC71C1000B) (frontside)

Goldstar 30핀 1MB DRAM SIMM (GM71C4400B + GMC71C1000B) (backside)

  • Manufacturing Company : Goldstar Electon
  • Manufactured Year : 1994
  • Country of manufacture : South Korea
  • Module Features : 30pin, SIMM, Parity RAM
  • Memory Capacity : 1MB
  • BandWidth : 8bit
  • Speed Feature : 70ns(tRAC)
  • Chip Composition : GM71C4400B × 2 + GM71C1000B

Goldstar 30pin 1MB DRAM SIMM (GM71C4400B + GMC71C1000B)

]]> https://www.devicelog.com/memory/dram/original-dram/goldstar-30pin-1mb-dram-simm-gm71c4400b-gmc71c1000b/feed/ 0 Goldstar 1MB DRAM 30pin SIMM (GM71C4400A + GMC71C1000) https://www.devicelog.com/mrj/memory/dram/original-dram/goldstar-30pin-1mb-dram-simm-gm71c4400a-gmc71c1000/ https://www.devicelog.com/mrj/memory/dram/original-dram/goldstar-30pin-1mb-dram-simm-gm71c4400a-gmc71c1000/#comments Tue, 02 Aug 2011 05:39:00 +0000 https://www.devicelog.com/?p=23-mrj Goldstar is the trademark of Goldstar Electron Co., Ltd. It changed its name into LG Semiconductor (LG Semicon) at 1995, and it was merged into Hyundai Electronics industry (Hynix of now) at 1999.

Goldstar 30pin 1MB DRAM SIMM (GM71C4400A+GMC71C1000) (frontside)Goldstar 30pin 1MB DRAM SIMM (GM71C4400A+GMC71C1000) (backside)

  • Manufacturing Company : Goldstar Electron
  • Manufactured year: 1993
  • Country of manufacture : South Korea
  • Module Features : 30pin, DRAM, SIMM, Parity RAM
  • Memory Capacity : 1MB
  • BandWidth : 8bit
  • Speed Feature : 70ns(tRAC)
  • Chip Composition : GM71C4400A × 2 + GM71C1000
]]> https://www.devicelog.com/memory/dram/original-dram/goldstar-30pin-1mb-dram-simm-gm71c4400a-gmc71c1000/feed/ 2 Hyundai 1MB DRAM 30pin SIMM https://www.devicelog.com/mrj/memory/dram/original-dram/hyundai-30pin-1mb-dram-simm/ https://www.devicelog.com/mrj/memory/dram/original-dram/hyundai-30pin-1mb-dram-simm/#comments Mon, 01 Aug 2011 16:12:29 +0000 https://www.devicelog.com/?p=5-mrj This RAM is 30-pin 1MB SIMM produced by Hyundai Electronics industry(Hynix of now). 30-pin SIMMs were used universally from 80286 to 80486. If the number of chips is odd number, one of the chips perform parity check.

This RAM is composed of two HY514400A(1M x 4bit) and one HY531000A(1M x 1bit). The memory capacity of the RAM is 1MB. HY531000A is data chip, and HY531000A is parity chip.

Hyundai 30-pin 1MB SIMM (HY514400A × 2 + HT531000A)

  • Manufacturer : Hyundai Electronics Industries Co., Ltd.
  • Manufactured Year : 1993
  • Product Features : 30-pin, DRAM SIMM, Parity RAM
  • Memory Capacity : 1MB
  • Bandwidth : 8bit
  • Speed Feature : 70ns(tRAC)
  • Chip Composition : HY514400A × 2 + HY531000A (4×2 + 1 bits)
]]> https://www.devicelog.com/memory/dram/original-dram/hyundai-30pin-1mb-dram-simm/feed/ 1