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MEGAWIN Products
USB Product
Low Speed MCU
*
MG64x2xx series
MG64F237

General Description

The MG64F237 is a 65C02 MCU with an USB 2.0 low-speed interface.  A PS/2 connection can be established on USB DP & DM pins by user firmware.  It will be very suitable for low-cost keyboard and products like hand-held game, data bank, and I-toy, which need to download/upload data from the PC host.

  • * 8-bit 65C02 micro-controller
  • * 8K Bytes MTP ROM
    • *Flash write/erase cycle: 100
    • *Flash data retention: 100 years at 25℃
  • * 256 bytes Data SRAM
    • *Data RAM (0100H to 01BFH) and stacks RAM (01C0H to 01FFH).
    • *Address 0100h~01BFH and 0000h~00BFH share the same memory block.
  • * 34+2 Programmable GPIO
    • *Port 0 shared 1 pin with FOSC output (6MHz / 3MHz / 1.5MHz)
    • *Port 1 shared 2 pins with T0CKO/PWM0 and T1CKO/PWM1.
    • *Port 2 shared with SPI interface (3 pins) and ICP interface (3 pins)
    • *Port 3 shared with external crystal and external interrupt.
    • *Port 0/1/2/3 support Wakeup Function.
    • *Port 0/1/2/3/4 LED direct sink pins.
    • *Support VDDO pin to setup output voltage.
  • * Master Mode SPI Interface
    • *Clock Rate : 1.5MHz, 750KHz
    • *MSB / LSB of the data byte is transmitted first.
  • * Timer / PWM
    • *8-bit auto-reload timer (Timer0) support T0CKO/PWM0 to P1.1
    • *8-bit auto-reload timer (Timer1) support T1CKO/PWM1 to P1.2
  • * Programmable Watch-dog Timer (WDT)
  • * Programmable system clock (6MHz / 3MHz)
  • * USB 2.0 low speed device controller
    • *Built-in USB low-speed (1.5Mbps) transceiver
    • *8-bytes FIFO for endpoint 0 Control IN/OUT.
    • *8-bytes FIFO for endpoint 1 Interrupt IN.
    • *8-bytes FIFO for endpoint 2 Interrupt IN/OUT, default is IN.
    • *Supports USB suspend/resume and remote wake-up event.
    • *Software-controlled USB disconnection mechanism.
    • *DP/DM combine with PS/2 Mode (PS2_CLK and PS2_Data)
  • * Built-in 5v to 3.3v regulator for USB interface.
  • *  Built-in 6Mhz±1.5% IHRCO with temperature -20℃ ~ 85℃.
  • *   Low-Voltage detect: LVDF (Low Voltage detect Flag): 3.6V±5%
  • * Power saving modes
    • *Halt(Idle) mode
    • *Stop(Power-down) mode
  • * Operating condition:
    • *Operating voltage: 2.7V ~ 5.5V with USB off-line application
    • *Operating voltage: 4.0V ~ 5.5V with USB on-line application
    • *Operating speed range: DC to 6MHz @VDD>2.7V
    • *Operating ambient temperature: -20℃ ~ 85℃ for internal oscillator mode
    • *Operating ambient temperature: -20℃ ~ 85℃ for external crystal mode
  • * Package Type
    • *DICE : MG64F237H
    • *LQFP-48 : MG64F237AD48
    • *SSOP-16 : MG64F237AL16


  • * Data Sheet *


  • * Developement Kit *