WP-2 128K RAM IC-Card

bkw777·WP-2_IC-Card·attic/small_pcb_in_3d_printed_carrier/PCB/WP-2_IC_Card_RAM_cap_carried.kicad_pcb

WP-2 128K RAM IC-Card PCB layout, top view — open source board by bkw777

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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 7 components from 7 distinct parts.

Other key parts include the AS6C4008-55STIN and SRAM 128Kx8 5v Parallel. By type, the board carries 2 ICs, 2 resistors, 1 connector, 1 diode and 1 capacitor.

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.

WP-2 128K RAM IC-Card, from the project README — From the project README

Main components on the WP-2 128K RAM IC-Card

AS6C4008-55STIN SRAM 128Kx8 5v Parallel

WP-2 128K RAM IC-Card bill of materials (BOM)

7 components, 7 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	AS6C4008-55STIN SRAM 128Kx8 5v Parallel	TSOP32-20mm	U1
1	SRAM 128Kx8 5v Parallel	TSOP32-14mm	U2
1	SMS-138-01-G-S Conn_01x38_Female	PinSocket_1x38x1.27_edge_s	J1
1	1SS389	D_SOD-523_bridgeable	D1/SB1
1	CL21A105KBCLNNC 220uf	CP_Tantalum_Case-B_EIA-3528-21_Reflow	C1
1	RC0805FR-07100KL 4.7K	R_0805	R1
1	RC0805FR-07100KL 47K	R_0805	R2

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?

7 components, from 7 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.

More boards in WP-2_IC-Card