DRAM 64k x 4: Difference between revisions

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{| style="float: right;" border="1" cellpadding="4" cellspacing="0"
{| style="float: right;" border="1" cellpadding="4" cellspacing="0" class="sortable"
|+ style="background:silver" | Cross-Reference
|+ style="background:silver" | Cross-Reference
!BRAND
!BRAND
!TAG
!TAG
!NUMBER
!NUMBER
!PIN COUNT
!OUTPUT
!MARKINGS
!MARKINGS
|-
|-
|Fujitsu || MB || 81464 || MB81464 MB81466
|Fujitsu || MB || 81464 || DIP18 LCC18 ZIP20 || || MB81464
|-
|-
|Hitachi || HM || 50464 || HM50464
|Fujitsu || MB || 81466 || DIP18 || || MB81466
|-
|-
|Matsushita || MN || 41464 || MN41464
|Hitachi || HM || 50464 || DIP18 || || HM50464
|-
|-
|Mitsubishi || M5M || 4464 || M5M4464
|Matsushita || MN || 41464 || DIP18 || || MN41464
|-
|-
|NEC || uPD || 41464 || uPD41464
|Mitsubishi || M5M || 4464 || DIP18 || || M5M4464
|-
|-
|OKI || MSM || 41464 || MSM41464
|NEC || uPD || 41464 || DIP18 || || uPD41464
|-
|-
|Samsung || KM || 41464 || KM41C464 KM41C466
|OKI || MSM || 41464 || DIP18 || || MSM41464
|-
|-
|Sharp || LH || 2464 || LH2464
|Samsung || KM || 41464 || DIP18 || || KM41C464
|-
|-
|Texas Instruments || TMS || 4464 || TMS4464
|Samsung || KM || 41466 || DIP18 || || KM41C466
|-
|-
|Toshiba || TC || 51464 || TC51464 TC51466
|Sharp || LH || 2464 || DIP18 || || LH2464
|-
|Texas Instruments || TMS || 4464 || DIP18 || || TMS4464
|-
|Toshiba || TC || 51464 || DIP18 || || TC51464
|-
|Toshiba || TC || 51466 || DIP18 || || TC51466
|-
|-
|Note:
|Note:
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=Files=
=Files=
<gallery widths="150px">
<gallery widths="150px">
File:81464.pdf|81464 Datasheet
File:mb81464.pdf|MB81464 Datasheet
</gallery>
</gallery>


Revision as of 14:57, 18 January 2017

Cross-Reference
BRAND TAG NUMBER PIN COUNT OUTPUT MARKINGS
Fujitsu MB 81464 DIP18 LCC18 ZIP20 MB81464
Fujitsu MB 81466 DIP18 MB81466
Hitachi HM 50464 DIP18 HM50464
Matsushita MN 41464 DIP18 MN41464
Mitsubishi M5M 4464 DIP18 M5M4464
NEC uPD 41464 DIP18 uPD41464
OKI MSM 41464 DIP18 MSM41464
Samsung KM 41464 DIP18 KM41C464
Samsung KM 41466 DIP18 KM41C466
Sharp LH 2464 DIP18 LH2464
Texas Instruments TMS 4464 DIP18 TMS4464
Toshiba TC 51464 DIP18 TC51464
Toshiba TC 51466 DIP18 TC51466
Note:
  • 464= Page mode
  • 466= Static column mode

Dynamic Random-Access Memory 64K x 4 (DIP18, 300mil)(LCC18, 330mil)(ZIP20, 100mil)

Size

bit Byte (padded 0000xxxx) Byte (unpadded) Hex
256Kb 64KB 32KB 40000hex

Pinout

DIP18
         +---\/---+
     *OE | 1    18| Vss
     DO1 | 2    17| D04
     DO2 | 3    16| *CAS
     *WE | 4    15| DO3
    *RAS | 5    14| A0
      A6 | 6    13| A1
      A5 | 7    12| A2
      A4 | 8    11| A3
     Vcc | 9    10| A7
         +--------+

LCC18
+---------------------------------------------------------------+
|  3 DO2        |  8 A4         | 12 A2         | 17 D04        |
|  4 *WE        |  9 Vcc        | 13 A1         | 18 Vss        |
|  5 *RAS       | 10 A7         | 14 A0         |  1 *OE        |
|  6 A6         | 11 A3         | 15 DO3        |  2 DO1        |
|  7 A5         |               | 16 *CAS       |               |
+---------------------------------------------------------------+


ZIP20
          ^
   DO3  1 |
          |  2 *CAS
   DO4  3 |
          |  4 Vss
   *OE  5 |
          |  6 DO1
   DO2  7 |
          |  8 *WE
  *RAS  9 |
          | 10 NC
    NC 11 |
          | 12 A6
    A5 13 |
          | 14 A4
   Vcc 15 |
          | 16 A7
    A3 17 |
          | 18 A2
    A1 19 |
          | 20 A0
          -

External links

DRAM page on wikipedia

Files

  • MB81464 Datasheet
    MB81464 Datasheet
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