NEO-DOCTOR v1.0 for GQ-4X

2 months ago

Profile:16Mbit adaptor with option to read TC533204AD and TC536405AD Toshiba maskroms

Open source license: CC-BY-NC-SA 3.0

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Description

16bit adapter for GQ-4X  (& Willem, GQ-2X, GQ-3X) with more option to read Toshiba TC533204AP (32Mo, 8bit) and TC5364205AP (64Mo, 16bit) maskroms:

- Jumpers J2 & J4 allows to read TC5364205AP in a 2-step process (first and second halves of the rom). Rom can be reconstructe by concatenation of both parts.

- Jumpers J3 & J4 allows to read TC533204AP in a 2-step process (even or odd bits only). Rom can be reconstruted by alternating even and odd bits with romwak64 for example.

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NEO-Doctor

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BOM

ID Name Designator Footprint Quantity
1 4.7k R2,R4 AXIAL-0.3 2
2 2.2k R1 AXIAL-0.3 1
3 10k R3 AXIAL-0.3 1
4 8x10K ARRAY RP1,RP2 8 RESISTOR ARRAY COPY 2
5 HEADER 20PX1 J5,J6 H20-2.54 2
6 27CXXX/27C322 J1 PIN HEADER 3P 1
7 Vcc/GND J4 PIN HEADER 3P 1
8 TC536405AD J2 PIN HEADER 3P 1
9 TC533204AD J3 PIN HEADER 3P 1
10 27C160-DIP42 U2 DIP-42_W15.24MM 1
11 27C4096 U1 DIP40-2.54-52.3X15.24MM 1
12 74HC245 U3,U4 DIP20 2
13 BC547A Q1 TO92-INLINE 1
14 10uF C1 CAPACITOR 1
15 5V1 D1 DIODE-1N4148 1
16 100nF C3,C2 100NF-CCD2.5-SLS 2

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