SRAM Board
About the SRAM Board
SRAM Board is an open source PCB design by Asnivor, published on GitHub under the GPL-2.0 license. It is a 2-layer board measuring 105.4 × 50.8 mm, with 15 components from 5 distinct parts.
Other key parts include the SN74ABT821ADW, 74HC00, CY62157ESL-45ZSXI and 44256_DRAM. By type, the board carries 11 ICs and 4 capacitors.
From the project
Replace the old 44256 DRAM chips on your A500 with newer SRAM memory
Remember to grab the A500 Parts Library so that you have the correct footprints.
Main components on the SRAM Board
SRAM Board bill of materials (BOM)
15 components, 5 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SN74ABT821ADW | SOIC-24W_7.5x15.4mm_P1.27mm | U1 |
| 1 | 74HC00 | SOIC-14_3.9x8.7mm_P1.27mm | U2 |
| 1 | CY62157ESL-45ZSXI | TSOP-II-44_10.16x18.41mm_P0.8mm_copy | U3 |
| 8 | 44256_DRAM | DIP-20_W7.62mm_Socket | U16, U17, U18, U19, U20, U21, U22, U23 |
| 4 | 0.1uF | C_1206_3216Metric_Pad1.42x1.75mm_HandSolder | C1, C2, C3, C4 |
SRAM Board design files
The KiCad project lives in the Asnivor/A500-SRAM-Board repository on GitHub; these links point at the commit this page was built from.
SRAM Board: common questions
How big is the SRAM Board?
The SRAM Board measures 105.4 × 50.8 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the SRAM Board?
15 components, from 5 distinct parts. The full bill of materials is listed on this page.
Where can I download the SRAM Board design files?
From the Asnivor/A500-SRAM-Board repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the SRAM Board design in my own project?
Yes, under the terms of its GPL-2.0 license, which Asnivor chose for the repository.
