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Products - GPM8F3732B


Flash2.4~5.54832K2.5K/2568 channel 12-bit resolution16Two 16-bit Timer/Counter (Timer0/1) Three Powerful timers 16-bit Compare/Capture (TimerA/B/C)16Mhz16Mhz 11145LQFP 44/LQFP 48-

General Description

GPM8F3732B, a highly integrated microcontroller, integrates a pipelined 1T 8051 CPU, 2.5K-byte XRAM, 256-byte IDM SRAM and 32K-byte programming FLASH memory. It features maximum of 43 programmable multi-functional I/Os, Timer0/1/A/B/C, UART0, SPI (master/slaver), I2C (master/slaver), 4X31 LCD driver, up to 60-second RTC, 48MHz PLL, 16-bit X 16-bit multiplier, 32-bit / 16-bit divider, 16-channel capacitive touch sensor and one 7-channle SAR ADC with 12-bit resolution for general-purpose application. The GPM8F3732B operates over a wide voltage range of 2.4V - 5.5V with variety of clock sources. Three modes are designed in power management unit to extend battery life and there is one on-chip debug circuit with two-pin interface for in-system debug on GPM8F3732B.


  • CPU
    • High speed & high performance 1T 8051
  • 100% software compatible with industry standard 8051
  • Pipeline RISC architecture is ten times faster than standard 8051 in executing instructions.
  • Up to 48MHz operating speed
  • Memories
    • 5K bytes XRAM
    • 256 bytes internal Data Memory (IDM) SRAM
    • 32K bytes Flash memory with high endurance
  • Minimum 200,000 program/erase cycles
  • Minimum 20 years of data retention
  • 1KB page size
    • Programming read-only level for software security
  • Clock Management
    • Internal oscillator: 16MHz±2% @ 4V~5.5V
    • Internal oscillator with PLL : 48MHz
  • Power Management
    • One Sleep mode for power saving
    • One Halt mode for power saving
  • Interrupt Management
    • 15 interrupt sources
    • Up to 6 external interrupt sources
  • Reset Management
    • Power On Reset (POR)
    • Low Voltage Reset (LVR)
    • Pad Reset (PAD_RST)
    • Watchdog Reset (WDT_RST)
    • Software Reset (S/W_RST)
    • Flash Access Error Reset (ADDR_ERR_RST)
  • Programmable Watchdog Timer
    • A time-base generator
    • An event timer
    • System supervisor
  • I/O Ports
    • of 43 multifunction bi-directional I/Os
    • Each incorporate with pull-up resistor, pull-down resistor, output high, output low , output driving capability and floating input which depending on programmer’s settings on the corresponding registers
    • I/O ports with 12mA or 6mA current sink
    • I/O ports with 12mA or 6mA current drive
  • Two 16-bit Timer/Counter (Timer 0/1)
    • Timer mode with selectable clock source
    • Auto reload 8-bit timers
  • Three Powerful Timers: TimerA/TimerB/TimerC with 16-bit Compare/Capture Unit
    • Timer mode with selectable clock source
    • Auto-reloadable 16-bit timers
    • Event capture
  • UART0
    • One synchronous mode
    • Three asynchronous modes
  • SPI (master / slaver mode)
    • Programmable phase and polarity of master clock
    • Programmable master SPI clock frequency
    • Max SPI clock: 24MHz (Fpll /2) @48MHz
  • I2C (master / slaver mode)
    • Programmable master I2C clock frequency
    • I2C clock: 375KHz (Fpll /128) @48MHz
  • A/D Converter
    • One 8-channel 12-bit resolution ADC
  • Built-in Low Voltage Reset
    • Trigger level: 1.9V, 2.4V, 3.2V, 4.2V
  • Built-in Low Voltage Detect
    • Programmable level: 2.1V, 2.6V, 3.4V, 4.4V
  • LCD driver
    • Up to 4X31 pixels
  • MDU
    • Built-in 16-bit X 16-bit signed multiplier
    • Built-in 32-bit / 16-bit signed divider
  • Real Time Counter
    • Up to 60-second real time counter
  • On-chip Debug Unit
    • C-language compatible development tools
  • Capacitive Touch sensor (CTS)
    • One 16-bit Timer (Timer C) to compute user-specified number of CTS cycle
    • One 16-bit Timer (Timer B) to measure the time duration for user-specified number of CTS cycle occurrence.
    • One 16-channel Capacitive Touch sensor

Data Sheet

GPM8F3732BV04_ds.pdf   Copy Link.
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