GENERAL DESCRIPTION
The ML674001, ML67Q4002, and ML67Q4003 microcontrollers (MCUs) are the members of an extensive and growing family of 32-bit ARM®-based standard products for general-purpose applications that require 32-bit CPU performance and low cost afforded by MCU integrated features.

FEATURES
• CPU
    32-bit RISC CPU (ARM7TDMI)
        32-bit instructions (ARM Instructions) and 16-bit instructions (Thumb Instructions) mixed
        General purpose registers : 31 x 32 bits
        Built-in Barrel shifter and multiplier (32 bit x 8 bit, Modified Booth’s Algorithm)
        Little endian
        Built-in debug function
• Internal memory
    RAM 32KB (32-bit access)
    FLASH (16-bit access)
        ML674001 : ROM-less version
        ML67Q4002 : 256Kbytes
        ML67Q4003 : 512Kbytes
• External memory controller
    ROM (FLASH): 16 Mbytes
    SRAM: 16 Mbytes
    DRAM: 64 Mbytes (SDRAM and EDO-DRAM support)
    External IO devices: 16 Mbytes x 2 banks, 4 Chip select pins
                                      Wait control input signal for each bank
                                      Independent programmable wait settings for each bank
• Interrupt controller
    28 sources: 23 internals and 5 externals (IRQ: 4, FIQ: 1)
• DMA controller
    2 channels: Dual address mode, cycle steal and burst tranfer mode
• Timer
    1 channel: 16-bit auto reload for operating system
    6 channels: 16-bit auto reload for application
    1 channel: 16 bit watchdog timer
• Serial interface
    1 channel: UART
    1 channel: UART with 16-byte FIFO
    1 channel: synchronous
    1 channel: I2C (single master)
• Parallel I/O Port
    4 ports x 8 bits (bitwise input/output settings)
    1 port x 10 bit (bitwise input/output settings)
• PWM
    2 channels x 16 bits
• Analog-to-Digital Converter
    4 channels x 10 bits
• Power down mechanism
    Standby (all clock stop) and Halt (clock stop by each function block)
    Clock gear (selectable 1/1, 1/2, 1/4, 1/8, 1/16 input clock frequency)
• JTAG interface
    Connectable to JTAG ICE
• Power supply voltage
    Core section: 2.25 V to 2.75 V
    IO section: 3.0 V to 3.6 V
    Analog section: 3.0 V to 3.6 V
• Operating frequency
    1-33 MHz
• Operating temperature (ambient temperature)
    –40°C to +85°C
• Package
    144-pin plastic LQFP (LQFP144-P-2020-0.50)
    144-pin plastic LFBGA (P-LFBGA144-1111-0.80)