P2000t ram expansion board-128kb smd
ifilot·p2000t-ram-expansion-board·pcb/p2000t-ram-expansion-board-128kb-smd/p2000t-ram-expansion-board-128kb-smd.kicad_pcb
About the P2000t ram expansion board-128kb smd
P2000t ram expansion board-128kb smd is an open source PCB design by ifilot, published on GitHub. It is a 2-layer board measuring 110 × 45.5 mm, with 23 components from 14 distinct parts.
Other key parts include the 74HC138, 62128, 74HC00, 74HC283 and 74HC173. By type, the board carries 10 capacitors, 9 ICs, 3 connectors and 1 diode.
From the project
RAM expansion board for the P2000T
Purpose Memory lay-out Installation Testing the expansion board Schematic Bill of materials Testing bank switching in BASIC Files Alternative RAM expansions SMD-128KiB version SMD-CPLD-128KiB version SMD-CPLD-512KiB version THT-1056 KiB expansion THT-2080 KiB expansion * License
This repository provides several RAM expansion boards for the Philips P2000T, ranging from 64 KiB to over 2 MiB. Options vary in complexity (THT, SMD, CPLD), so choose a board that fits your soldering skills and tools. A RAM tester utility is included to verify proper installation and functionality after assembly.

Main components on the P2000t ram expansion board-128kb smd
P2000t ram expansion board-128kb smd bill of materials (BOM)
23 components, 14 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 74HC138 | SOIC-16_3.9x9.9mm_P1.27mm | U1, U5 |
| 1 | 62128 | SSOP-32_11.305x20.495mm_P1.27mm | U2 |
| 1 | 74HC00 | SOIC-14_3.9x8.7mm_P1.27mm | U3 |
| 1 | 74HC283 | SOIC-16_3.9x9.9mm_P1.27mm | U4 |
| 1 | 74HC173 | SOIC-16_3.9x9.9mm_P1.27mm | U7 |
| 1 | 74HC245 | SOIC-20W_7.5x12.8mm_P1.27mm | U8 |
| 1 | 74HC157 | SOIC-16_3.9x9.9mm_P1.27mm | U9 |
| 1 | 74HC02 | SOIC-14_3.9x8.7mm_P1.27mm | U10 |
| 1 | EXPANSION BOARD | PinHeader_2x20_P2.54mm_Vertical | J1 |
| 1 | POWER | PinSocket_1x02_P2.54mm_Vertical | J2 |
| 1 | TERMINAL | TerminalBlock_bornier-2_P5.08mm | J3 |
| 1 | 1N4148 | D_DO-35_SOD27_P7.62mm_Horizontal | D1 |
| 9 | 0.1uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2, C4, C5, C6, C7, C8, C9 +1 |
| 1 | 220uF | CP_Radial_D6.3mm_P2.50mm | C3 |
P2000t ram expansion board-128kb smd design files
The KiCad project lives in the ifilot/p2000t-ram-expansion-board repository on GitHub; these links point at the commit this page was built from.
P2000t ram expansion board-128kb smd: common questions
How big is the P2000t ram expansion board-128kb smd?
The P2000t ram expansion board-128kb smd measures 110 × 45.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the P2000t ram expansion board-128kb smd?
23 components, from 14 distinct parts. The full bill of materials is listed on this page.
Where can I download the P2000t ram expansion board-128kb smd design files?
From the ifilot/p2000t-ram-expansion-board repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the P2000t ram expansion board-128kb smd design in my own project?
The repository has no license, so all rights stay with ifilot. Use it as a reference, and ask the author before reusing the design.
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