WP-2 128K RAM IC-Card
bkw777·WP-2_IC-Card·attic/small_pcb_in_3d_printed_carrier/PCB/WP-2_IC_Card_ROM_carried.kicad_pcb
About the WP-2 128K RAM IC-Card PCB
WP-2 128K RAM IC-Card is an open source PCB design by bkw777, published on GitHub under the Custom license license. It is a 2-layer board measuring 14.5 × 48.5 mm, with 4 components from 4 distinct parts.
Other key parts include the FLASH 256Kx8 5v Parallel. By type, the board carries 1 IC, 1 connector, 1 jumper and 1 resistor.
From the project
IC Cards for TANDY WP-2
The TANDY WP-2 has an expansion slot that accepts "IC Cards" that may be either RAM or ROM, up to 128K RAM, up to 256K ROM. Here are a few different types of cards to fit that slot. So far, one RAM and one ROM in the form of a small pcb that snaps into a 3d-printed carrier, and one RAM and one ROM in the form of a large pcb with no carrier. The large RAM card includes a battery backup.

Main components on the WP-2 128K RAM IC-Card
WP-2 128K RAM IC-Card bill of materials (BOM)
4 components, 4 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | FLASH 256Kx8 5v Parallel | TSOP32-14mm | U2 |
| 1 | SMS-138-01-G-S Conn_01x38_Female | PinSocket_1x38x1.27_edge_s | J1 |
| 1 | Write-Enable | JP2 | JP1 |
| 1 | RC0805FR-07100KL 47K | R_0805 | R1 |
WP-2 128K RAM IC-Card design files
The KiCad project lives in the bkw777/WP-2_IC-Card repository on GitHub; these links point at the commit this page was built from.
WP-2 128K RAM IC-Card: common questions
How big is the WP-2 128K RAM IC-Card PCB?
The WP-2 128K RAM IC-Card measures 14.5 × 48.5 mm, has 2 copper layers and is 0.8 mm thick.
How many components are on the WP-2 128K RAM IC-Card?
4 components, from 4 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the WP-2 128K RAM IC-Card design files?
From the bkw777/WP-2_IC-Card repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the WP-2 128K RAM IC-Card design in my own project?
It is published under Custom license, which limits how it may be reused; read the license before building on it.
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