FUNCTIONAL OVERVIEW

The GL600USB is a 8-bits RISC-like high performance microcontroller with a built -in 1.5Mbps SIE and transceiver. The microcontroller features 33 instructions optimized for USB applications. There are 64 bytes on-chip RAM and 1.75Kx 14 program ROM incorporated into the microcontroller.The GL600USB accepts a 6MHz ceramic resonator or a crystal as its clock source.

FEATURES

· Low -cost solution forlow -speed USB mouse

· 8-bit micro -controller

- Operation Speed: DC to 6MHzclock input

- Performance: 3 MIPS @ 6MHz

- Single cycle instruction execution

- RISC-like architecture

- USB optimized instruction set

· USB Specification Compliance

- Conforms to USB 1.5Mbps Specification, Version 1.1

- Conforms to USB HID Class Specification, Version 1.1

- Supports 1 device address and 2 endpoints (include endpoint 0)

· I/O ports

- Up to 13(GL600USB)/11(GL600USB-A)/9(GL600USB-B) general purpose I/O pins (OTP type is less a GPIO pin thanmask type)

- Internal RC clock to wakeup periodically (about 500ms) when suspend

- Up to 8(GL600USB)/6(GL600USB-A)/4(GL600USB-B) special purpose I/O pins optimized for photo-sensor (Internal build in 4 bits ADC)

- Up to 2 I/O pins with large current drive capability to drive LED (Sink current up to 16 mA)

· Internal memory

- 64 bytes of RAM (special purpose register is not included)

- 1.75K x 14 of program ROM

· Integrated USB transceiver

· Patentedfull-range detection for photo-sensor

- Removes the expensive process of ma tching LED and photo-sensor

· On-chip 3.3v output

- No external regulator required

· Improved output drivers with slew -rate control to reduce EMI

· 6 MHz external clock

· Internal power -on reset(POR)

· Internal power -fail detector

· Supports suspend/normal mode power ma nagement

- Suspend current lower than 400mA for whole mouse system (mask type)

· 8-bits free-running timer

· Available in cost saving 20-pin(GL600USB) PDIP, 18-pin(GL600USB-A) PDIP and 16-pin(GL600USB-B) PDIP