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Product Specifications

Item Specification
CPU:
  • General-register machine
    • Sixteen 16-bit general registers (also usable as sixteen 8-bit registers or eight 32-bit registers)
  • High-speed operation suitable for realtime control
    • Maximum clock rate: 20 MHz
    • High-speed arithmetic operations
      • 8/16/32-bit register-register add/subtract : 50 ns
      • 16 × 16-bit register-register multiply : 1000 ns
      • 32 ÷ 16-bit register-register divide : 1000 ns
  • Instruction set suitable for high-speed operation
    • Sixty-five basic instructions
    • 8/16/32-bit move/arithmetic and logic instructions
    • Unsigned/signed multiply and divide instructions
    • Powerful bit-manipulation instructions
  • Two CPU operating modes
    • Normal mode : 64-kbyte address space
    • Advanced mode : 16-Mbyte address space
Interrupt Controller:
  • Nine external interrupt pins (NMI, IRQ0 to IRQ7)
  • 47 internal interrupt sources
  • Eight priority levels settable
Bus controller:
  • Address space divided into 8 areas, with bus specifications settable independently for each area
  • Chip select output possible for each area
  • Choice of 8-bit or 16-bit access space for each area
  • 2-state or 3-state access space can be designated for each area
  • Number of program wait states can be set for each area
  • Burst ROM directly connectable
  • External bus release function
Data transfer controller(DTC):
  • Can be activated by internal interrupt or software
  • Multiple transfers or multiple types of transfer possible for one activation source
  • Transfer possible in repeat mode, block transfer mode, etc.
  • Request can be sent to CPU for interrupt that activated DTC
I/O Ports:
  • 87 I/O pins, 8 input-only pins
16bit Timer Puls Unit (TPU):
  • 6-channel 16-bit timer on-chip
  • Pulse I/O processing capability for up to 16 pins'
  • Automatic 2-phase encoder count capability
8-bit timer,2 channels:
  • 8-bit up-counter (external event count capability)
  • Two time constant registers
  • Two-channel connection possible
Watchdog Timer:
  • Watchdog timer or interval timer selectable
Serial communication interface (SCI),3 channels:
  • Asynchronous mode or synchronous mode selectable
  • Multiprocessor communication function
  • Smart card interface function
Smart Card Interface:
  • The SCI supports an IC card (smart card) interface conforming to ISO/IEC 7816-3 (identification card) as a serial communication interface extension function.
  • Switching between the normal serial communication interface and the smart card interface is carried out by means of a register setting.
A/D Converter:
  • Resolution: 10 bits
  • Input: 8 channels
  • High-speed conversion: 6.7 µs minimum conversion time (at 20 MHz operation)
  • Single or scan mode selectable
  • Sample and hold circuit
  • A/D conversion can be activated by external trigger or timer trigger
D/A converter:
  • Resolution: 8 bits
  • Output: 2 channels
Memory:
  • PROM or mask ROM
  • High-speed static RAM
    Product Name ROM RAM
    H8S/2355 128 kbytes 4 kbytes
    H8S/2353 64 kbytes 2 kbytes
    H8S/2393 32 kbytes 4 kbytes
Clock Pulse Generator:
  • Built-in duty correction circuit
Power-down state:
  • Medium-speed mode
  • Sleep mode
  • Module stop mode
  • Software standby mode
  • Hardware standby mode
Operating modes:
  • Seven MCU operating modes
    Mode CPU
    Operating Mode     		Description On-Chip ROM External Data Bus
    Initial Value Maximum Value
    1 Normal On-chip ROM disabled expansion mode Disabled 8 bits 16 bits
    2 On-chip ROM enabled expansion mode Enabled 8 bits 16 bits
    3 Single-chip mode Enabled -
    4 Advanced On-chip ROM disabled expansion mode Disabled 16 bits 16 bits
    5 On-chip ROM disabled expansion mode Disabled 8 bits 16 bits
    6 On-chip ROM enabled expansion mode Enabled 8 bits 16 bits
    7 Single-chip mode Enabled -
Package:
  • 120pin TQFP(TFP-120)
  • 128pin QFP(FP-128)

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