The V850E/MA3 is a 32-bit single-chip microcontroller that incorporates ROM, RAM, and various  peripheral functions such as memory controllers, a DMA controller, timers/counters, serial interfaces, an A/D converter, a D/A converter, ROM correction, and on-chip debugging for realizing high-capacity data processing and sophisticated real-time control.


Main Solutions

Key Features:

  • Power supply voltage:
    • Internal: 2.3 to 2.7 V
    • External: 3.0 to 3.6 V


  • Max. frequency: 80 MHz
  • ROM capacities: 256 KB to 512 KB mask ROM and 512 KB flash memory
  • RAM capacities: 8/16/32 KB
  • Package: 144-pin plastic LQFP and 161-pin plastic FBGA
  • Number of instructions: 80
  • Minimum instruction execution time: 12.5 ns (at internal 80 MHz operation)
  • General-purpose registers: 32 bits x 32
  • CPU features:
    • Multiplication instruction (16 bits x 16 bits -> 32 bits): 1 to 2 clocks
    • Multiplication instruction (32 bits x 32 bits -> 64 bits): 1 to 2 clocks
    • Saturated operation instructions (with overflow/underflow detection function)
    • 32-bit shift instructions: 1 clock
    • Bit manipulation instructions
    • Load/store instructions with long/short format
    • Signed load instructions


  • Memory space:
    • 256 MB of linear address space (common program/data use)
    • Chip select output function: 8 spaces
    • Memory block division function: 2, 64 MB/block


  • External bus interface:
    • Separate bus/multiplexed bus output selectable
    • 8-/16-bit data bus sizing function
    • External bus division function: Divided by 1, 2, 3, 4 (50 MHz max.)
    • Wait function
      * Programmable wait function
      * External wait function
    • Idle state function
    • Bus hold function
    • Address setup wait function
    • Endian control function


  • Memory access controller
    • DRAM controller (compatible with SDRAM)
    • Page ROM controller


  • Interrupts and exceptions:
    • Non-maskable interrupts: 2 sources (external: 1 source, internal: 1 source)
    • Maskable interrupts: 74/75 sources (external: 25 sources, internal: 49/50 sources)
    • Software exceptions: 32 sources
    • Exception trap: 2 sources


  • DMA controller: 4 channels
    • Transfer unit: 8 bits/16 bits
    • Maximum transfer count: 65,536
    • Transfer type: Flyby (1-cycle)/2-cycle
    • Transfer mode: Single/Single step/Block
    • Transfer target: Memory <-> memory, memory <-> I/O
    • Transfer request: External request/On-chip peripheral I/O/Software
    • DMA transfer terminate (terminal count) output signal
    • Next address setting function


  • I/O lines: Total: 112


  • Timer/counter function:
    • Up/down counter/general-purpose timer (TMENC) for 16-bit 2-phase encoder input: 1 channel
    • 16-bit interval timer D (TMD): 4 channels
    • 16-bit timer/event counter Q (TMQ): 1 channel
    • 16-bit timer/event counter P (TMP): 3 channels
    • Motor control function (Timers used: TMQ: 1 channel (TMQ0), TMP: 1 channel (TMP2)
    • 16-bit accuracy 6-phase PWM function with dead time: 1 channel
    • High-impedance output control function
    • Timer tuning operation function
    • Arbitrary cycle setting function
    • Arbitrary dead-time setting function
    • Watchdog timer: 1 channel


  • Serial interfaces:
    • Asynchronous serial interface A (UARTA)
    • Clocked serial interface B (CSIB)
    • I2C bus interface (I2C) (I2C bus versions (Y products) only)
    • CSIB/UARTA: 3 channels
    • UARTA/I2C: 1 channel


  • 10-bit resolution A/D converter: 8 channels
  • D/A converter: 8-bit resolution: 2 channels
  • ROM correction: 4 places can be corrected.
  • On-chip debug function
  • Clock generator:
    • x1.25, 2.5, 5, 10 function via a PLL clock synthesizer (input clock: 4 to 8 MHz)
    • External clock input function (input clock: 5 to 25 MHz)


  • Power-save function: HALT/IDLE/software STOP mode
  • CMOS technology: Fully static circuits


Pin count – Memory size Lineup:

Program Flash

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Software Design Support

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CS+ An integrated development environment that can be used for coding, assembling/compiling, and simulation. (Also included with Renesas Starter Kits.)
E1 A standard Renesas on-chip debugging emulator that enables users to carry out ample debugging for real development at low cost. (Also included with starter kits.)
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