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MEGAWIN Products
USB Product
USB 8051 OTP MCU
*
74 SERIES
MG74PG1B08
  • * 1-T 80C51 Central Processing Unit
  • * MG74PG1B08 with 8K Bytes OTP ROM
    • *Code protection for OTP memory access
    • *OTP data retention: 10 years at 85℃
  • * On-chip 256 bytes scratch-pad RAM
  • * Interrupt controller
    • *6 sources, two-level-priority interrupt capability
    • *Two external interrupt inputs, nINT0, nINT1
    • *All external interrupts support High/Low level or Rising/Falling edge trigger
  • * Two 16-bit timer/counters, Timer 0, Timer 1
    • *T0CKO on P14, T1CKO on P15
    • *X12 mode enabled for T0/T1
  • * Programmable 16-bit counter/timer Array (PCA) with one compare/capture module
    • *Capture mode, 16-bit software timer mode and High speed output mode
    • *8-bit PWM mode, 16-bit PWM, double channel 8-bit PWM
  • * Keypad Interrupt function on all GPIO
  • * Enhanced UART0 (S0)
    • *Framing Error Detection
    • *Speed improvement mechanism (X2 mode)
    • *SPI master/Slave support in mode 4/6
  • * Two wire interface Start/Stop detection (STWI, IIC compatible)
  • * USB Device Controller
    • *USB Full speed (12Mbps) operation and USB specification 2.0 compliant
    • *Intel 8X931 like USB control flow
    • *Built-in USB transceiver and 3.3V regulator
    • *Integrated clock recovery, no external crystal required
    • *8-bytes FIFO for EP0 control In/Out
    • *8-bytes FIFO for EP1 INT/BULK In
    • *16-bytes FIFO for EP2 INT/BULK In/Out (default: In)
    • *32-bytes FIFO for EP3 INT/BULK/ISO In
    • *Software-controlled USB connection/disconnection mechanism
  • * Programmable Watchdog Timer, clock sourced from ILRCO (64KHz)
    • *One time enabled by CPU or power-on
    • *Interrupt CPU or Reset CPU on WDT overflow
    • *Support WDT function in power down mode (watch mode)
  • * Maximum 11 GPIOs in SOP16 package
    • *P3 can be configured to quasi-bidirectional, push-pull output, open-drain output and analog-input-only
    • *P1 can be configured to open-drain with pull-up resistor, push-pull output, open-drain and analog-input-olny
  • * Multiple power control modes: idle mode, power-down mode, slow mode, sub-clock mode, watch mode and monitor mode.
    • *All interrupts can wake up IDLE mode
    • *8 sources to wake up Power-Down mode
    • *Slow mode and sub-clock mode support low speed MCU operation
    • *Watch mode supports WDT to resume CPU in power down
  • * One POR & Two Brown-Out Detectors
    • *POR: detect 1.95V (2.3V Select by SFR)
    • *BOD0: detect 2.1V (2.6V Select by SFR)
    • *BOD1: detect 3.6V
    • *Interrupt CPU or reset CPU
  • * Operating voltage range: 2.0V – 5.5V
  • * Operating frequency range: 12MHz(max)
    • *0 – 6MHz @ 2.0V – 5.5V, 0 - 12MHz @ 2.4V - 5.5V, 0 - 24MHz @ 2.7V – 5.5V.
    • *CPU up to 3MHz @ 2.0V – 5.5V, up to 6MHz @ 2.4V – 5.5V and up to 12MHz @ 2.7V – 5.5V
  • * Clock Sources
    • *Internal 12MHz oscillator (IHRCO) with USB clock recovery enabled: ±0.25% accuracy
    • *Internal 12MHz oscillator (IHRCO): without USB clock recovery: factory calibrated to 1%, typical
    • *Internal Low frequency RC Oscillator (ILRCO) support: about 64KHz
    • *External clock input (ECKI) on P1.7
    • *Internal Oscillator output (ICKO) on P1.7
    • *On-chip Clock Multiplier (CKM) to provide high speed clock source
  • * Operating Temperature:
    • *Industrial (-40℃ to +85℃)*
  • * Package Types:
    • *DICE:  MG74PG1B08AH
    • *SOP16: MG74PG1B08AS16
    • *SOP10: MG74PG1B08AS10

Note*: Tested by sampling.

  • * Data Sheet *
  • * Package Dimension *

  • Tools
  • * Megawin 6502 U3 Programmer *
  • Reference
  • * Developement Kit *