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HT82M99E/HT82M99A -- USB Mouse Encoder 8-Bit
MCU
General Description
The USB MCU OTP body is suitable for USB
mouse devices. It consists of a Holtek high performance 8-bit MCU
core for control unit, built-in USB SIE, 2Kx14 ROM and 96 bytes data
RAM.
The mask version HT82M99A is fully pin and
functionally compatible with the OTP version HT82M99E device
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Features
- Flexible total solution for applications that
combine PS/2 and low-speed USB interface, such as mice,
joysticks, and many others
- USB Specification Compliance
- Conforms to USB specification V1.1
- Conforms to USB HID specification V1.1
- Supports 1 Low-speed USB control endpoint and 1
interrupt endpoint
- Each endpoint has 8×8 bytes FIFO
- Integrated USB transceiver
- 3.3V regulator output
- External 6MHz or 12MHz ceramic resonator or crystal
- 8-bit RISC microcontroller, with 2K×14 EPROM
(000H~7FFH)
- 96 bytes RAM (20H~7FH)
- 6MHz/12MHz internal CPU clock
- 4-level stacks
- Two 7-bit indirect addressing registers
- One 16-bit programmable timer counter with overflow
interrupt (shared with PA7, vector 0CH)
- One USB interrupt input (vector 04H)
- HALT function and wake-up feature reduce power
consumption
- PA0~PA7, PB4 and PB7 support wake-up function
- Internal Power-On reset (POR)
- Watchdog Timer (WDT)
- 12 I/O ports
- 18/20-pin DIP, 18/20-pin SOP package
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