Holtek USA Online Purchasing
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To develop Holtek’s 8bit MCU firmware is easy and inexpensive. For our latest generation MCUs, you simply need to purchase two hardware, e-Link and OCDS Chip, to do it. Holtek offers free and highly Integrated development Environment software, IDE-3000, for all series of Holtek 8-bit MCUs. This IDE supports both C and Assembly language. Click Quick Start tab to see how easy it is for the whole design process.

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e-Link is an online debug adapter for Holtek's new generation of OCDS architecture 8-bit Flash MCUs. Together with the HT-IDE3000 software it allows users to program and debug programs on their target boards. * e-Link also provides an ICP function for 8-bit Flash MCUs. When connected to a PC and when used together with the HOPE3000 software the e-Link can also be used as a low volume engineering programmer for HT8 Flash MCUs. * e-Link is not able to support offline programming and is not recommended for volume device programming.

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OCDS chip is equivalent to its Flash MCU including debug circuits for debug purpose. The part number usually has a "V" instead of "F" which represents Flash in Hotek's 8-bt MCUs. Ex: HT66V0185 28SSOP is the OCDS chip of HT66F0185 28SSOP.

DEV
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Holtek Easy DEV development board series make design easier before building your own target board. It has an onboard OCDS chip and a connecting header to e-Link for code debugging and MCU programming. * DEV28SSOP195 (HT66F0195) * DEV28SSOP185 (HT66F0185) * DEV20NSOP019 (HT66F019) * DEV16NSOP002 (HT66F002)

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e-WriterPro is a programming tool designed for all of Holtek's 8-bit OTP and Flash devices. It can be used not only as a programming tool during the development stage but can also be used for small to medium volume production purpose.

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Optional purchase: e-FPCB If your target device is an 8-pin or 10-pin MCU, the OCDS only comes at 16pin minimum so it is recommended using this flexible PCB to transform a 16pin package type into an 8-pin or 10-pin package type.

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