WP-2: Difference between revisions

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==Expansion Card==
==Expansion Card==
http://randomvariations.com/wp-content/uploads/2014/09/IMG_8920_wp2_zork1.jpg<br>
http://randomvariations.com/wp-content/uploads/2014/09/IMG_8920_wp2_zork1.jpg<br>
Toshiba Memory Card
Toshiba Memory Card / IC Card<br>
32K, 64K, or 128K RAM card<br>
32K, 64K, or 128K RAM card<br>
32K, 64K, 128K, or 256K ROM card<br>
32K, 64K, 128K, or 256K ROM card<br>


Connector that fits the Expansion port:
Connector that fits the Expansion port:<br>
:38 pins, single row, 1.27mm spacing
:Similar to PC-Card/Cardbus/PCMCIA, but thinner with a single row of pins instead of two rows of pins.
:38 pins, single row, 1.27mm pitch
:Card main body 2.5mm thick x 53mm wide not including polarity ridge on one side
:Card main body 2.5mm thick x 53mm wide not including polarity ridge on one side
:[[File:JC20-B38S-F1.pdf]]
:[[File:JC20-B38S-F1.pdf]]




:JAE JC20-B38S-F1-A1  0.29mm-0.45mm pcb, center,  https://www.asapaog.com/rfq/japan-aviation-electronics/jc20-b38s-f1-a1/
:JAE JC20-B38S-F1-A1  0.29mm-0.45mm pcb, centered,  https://www.asapaog.com/rfq/japan-aviation-electronics/jc20-b38s-f1-a1/
:JAE JC20-B38S-F2-A1  0.5mm pcb, offset
:JAE JC20-B38S-F2-A1  0.5mm pcb, offset
:JAE JC20-B38S-F3-A1  0.2mm pcb, offset
:JAE JC20-B38S-F3-A1  0.2mm pcb, offset

Revision as of 12:39, 21 September 2020

Manuals

https://archive.org/search.php?query=Tandy%20WP-2

RAM

Internal ram upgrade socket can take either a 32K or a 128K chip.

  • 32Kx8 parallel SRAM, 5v, low power, DIP-28
  • 128Kx8 parallel SRAM, 5v, low power, DIP-32
Hitachi HM628128LP
ISSI IS62C1024L
Alliance AS6C1008

Chips that would work with a simple SOIC-DIP or TSOP-DIP adapter pcb:

Cypress CY62128E

If you want to get real crazy, this probably works, although may not fit

https://www.digikey.com/product-detail/en/DS1245AB-85/DS1245AB-85-ND/

Expansion Card

http://randomvariations.com/wp-content/uploads/2014/09/IMG_8920_wp2_zork1.jpg
Toshiba Memory Card / IC Card
32K, 64K, or 128K RAM card
32K, 64K, 128K, or 256K ROM card

Connector that fits the Expansion port:

Similar to PC-Card/Cardbus/PCMCIA, but thinner with a single row of pins instead of two rows of pins.
38 pins, single row, 1.27mm pitch
Card main body 2.5mm thick x 53mm wide not including polarity ridge on one side
File:JC20-B38S-F1.pdf


JAE JC20-B38S-F1-A1 0.29mm-0.45mm pcb, centered, https://www.asapaog.com/rfq/japan-aviation-electronics/jc20-b38s-f1-a1/
JAE JC20-B38S-F2-A1 0.5mm pcb, offset
JAE JC20-B38S-F3-A1 0.2mm pcb, offset

0.4mm pcbs would fit the F1 version of the connector.
The pcb fits in the center of the thickness on the F1 connector, which leaves 1mm of height for components on both top & bottom of the pcb.
TSOP parts are 1mm tall and should fit with no special tricks.
SOIC parts could be mounted upside down in a hole.

Memory Battery

CR2430

Binary Apps

CamelForth FORTH Interpreter ZXZVM Infocom Z-Machine Interpreter