Enhanced/Dual Powered
Willem EPROM Programmer
User Guide Â
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Main Board / Cables
Main Board PCB3.5

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Main Board PCB4E

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Main Board PCB5.0

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Main Board PCB5.5C

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Parallel Data Cable (Printer extension cable, with male-female 25 pin connector, and pin to pin through) |
A-A type USB cable(for power) |
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Optional Items:
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ATMELÂ 89 Adapter |
ATMEL PLCC 44 Adapter |
TSOP 48 Adapter |
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FWH/HUB PLCC32Adapter |
PLCC32 Adapter |
SOIC Adapter(Simplified) |
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On-Board |
On-Board |
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AC or DC Power Adapter (9V or 12V, 200mA) |
SOIC Adapter(Professional) |
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If you're looking for higher-end specifications or a specific niche brand like , specialty shops and online warehouses are often superior.
: Their installation bundles frequently include furniture moving and old floor disposal at no extra cost during seasonal sales. best place to buy laminate flooring
: Reports from 2026 indicate that laminate at Lowe's can be found for as low as $1.44 per square foot , often beating Home Depot's entry-level pricing. If you're looking for higher-end specifications or a
: They offer a professional measurement service for a small fee (typically around $35), which is often credited back toward your final purchase. 2. Floor & Decor : Best for Specialty Selection : They offer a professional measurement service for
The "best" place to buy laminate flooring depends on whether you prioritize , professional design assistance , or direct-from-warehouse pricing . For most homeowners in 2026, the top contenders are The Home Depot for its sheer inventory and exclusive brands, Floor & Decor for its specialty focus and in-stock volume, and Lowe’s for competitive pricing and bundled installation services. 1. The Home Depot: Best for Variety and DIY Support
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Hardware Installation & Configuration
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Installation Steps
         (Note: the LPT port of PC MUST set to ECP or ECP+EPP during BIOS setup. To enter the BIOS setting mode, you need press "Del" key or "F1" key during the computer selftest, which is the moment of computer just power up.)  Software Version To Use | |||
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         The software interface:  | |||
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 Hardware
Check  | |||
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 PCB3.5/PCB4E
 PCB5.0
 PCB5.5C Â
Note: the Vcc setting jumper only has effect when you are using AC adaptor as power source. For the USB power only 5V Vcc is available. For the PCB5.5C, set DIP steps: 1. press DIP Set button twice to check current DIP bit position. Then set it again for ON or OFF. 2. press DIP Bit shift button to shift the DIP bit position to where need to set. And then press DIP Set button twice to check current DIP bit position. Then set it again for ON or OFF. 3. Repeat those steps till all DIP bit ae set same as software indicated. For PCB5.5C voltage and Special chip selection: 1. Put back the safety jumper. 2. Press the voltage button and hold for 1 second, the voltage LED should move to next. Repeat till desired voltage LED light up. 3. Press the chip selection button and hold for 1 second, the chip LED should move to next. Repeat till desired LED light up. 4. Remove the safety jumper to lock the selected voltage and chip selection  DIP Switch (PCB3.5, PCB5.0)
When programming one chip, follow the program prompt to set DIP switch .  |
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If you're looking for higher-end specifications or a specific niche brand like , specialty shops and online warehouses are often superior.
: Their installation bundles frequently include furniture moving and old floor disposal at no extra cost during seasonal sales.
: Reports from 2026 indicate that laminate at Lowe's can be found for as low as $1.44 per square foot , often beating Home Depot's entry-level pricing.
: They offer a professional measurement service for a small fee (typically around $35), which is often credited back toward your final purchase. 2. Floor & Decor : Best for Specialty Selection
The "best" place to buy laminate flooring depends on whether you prioritize , professional design assistance , or direct-from-warehouse pricing . For most homeowners in 2026, the top contenders are The Home Depot for its sheer inventory and exclusive brands, Floor & Decor for its specialty focus and in-stock volume, and Lowe’s for competitive pricing and bundled installation services. 1. The Home Depot: Best for Variety and DIY Support