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WT6522UF

【 General Description 】

The WT6522UF is a single chip Micro-controller for Universal Serial Bus (USB) low speed HID applications, it includes an 8-bit 65C02 CPU core, 256 bytes SRAM, 8K Bytes Flash memory, 36 Programmable I/Os with built-in pull up resistors and interrupt capability (P2 only), P3 and P5 output with high drive/sink capability up to 20mA. WT6522UF can support pure carbon membrane applications as well.

【 Features 】
●	8-bit 65C02 CPU with 3 MHz operating frequency
●	Clock source:
	-Internal 12 MHz RC oscillator (default), factory calibrated to within ±4%
●	256 bytes SRAM
●	8K bytes Flash ROM memory
●	USB Interface (USB Spec. Version 2.0 Low-Speed compliance)
●	Embedded USB function with three endpoints (one control endpoint and two Interrupt IN endpoints)
●	36 programmable I/O pins (P00~P07, P10~P17, P20~P27, P30~P37 and P50~P53), and they can be programmed to big, small resistance or no pull-up resistor
●	8 with interrupt capability in input mode (P20~P27).
●	12 high drive/sink capability pins: P30~P37 and P50~P53
●	Built-in fixed 240 Hz PWM and 7-bit duty controller in P30~P37 and P50~P53
●	Watchdog Timer
●	One 8-bit programmable Timer
●	Low Voltage Reset (LVR)
●	Power On Reset (POR)

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