Waltop is one of the very few companies that has obtained patents for battery free pen technology. Our controller offers great integration for EM technology and has been approved to support all of the main small/middle sized panels in the market. We have successful design-in for many worldwide brands based on this controller.
| Programmable Electromagnetic detection circuit | 81 Electromagnetic sensor inputs Automatic conversion sequencer |
| Powerful Hardware Computer Architecture | 8-bit RISC 8051 CPU operate maximum at 24Mhz clock 8x8 Multiplier and 16/8 bits Divider hardware accelerators Internal power-on reset circuit and watch-dog counter Programmable UART function |
| Flexible Electromagnetic pen point detection | Support Passive Type Electromagnetic pen pointer detection |
| Flexible On-Chip Memory | 512x8 bits SRAM for data storage 4Kx8 bits ROM for fundamental program 32Kx8 bits embedded-flash for extra program update and calibrated data |
| Support maximum of 14 general purpose input/output (GPIO) | |
| I2C compatible interface | Compliant to I2C specification v2.1 Support slave device only Supports standard and fast mode 7-bit device addressing modes Supports programmable device address selection |
| SPI compatible interface | Support SPI slave mode only, working frequency @ 3MHz 4-wire interface SPI mode 0 |
| Operation Power | One power source 3.3 V Provide one internal power regulator for core power generation |
| Low power consumption | Active mode : 20 mA Power Down mode : 50 uA |
| Temperature Range | -10 ℃ ~ 85 ℃ |
| Package | 144-pin LQFP (81ch, 14 GPIO) 128-pin LQFP (75ch, 9 GPIO) 128-pin BGA (75ch, 9 GPIO) |
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