H8SX/1658R group and H8SX/1658M group are a 32-bit CISC microcomputerwith a maximum operating frequency of 50 MHz. It is upward pin-to-pincompatible with H8SX/1653 group and supports ROM size from 384K to 1MB. Theon-chip peripheral functions have been enhanced with 2 units of TPU, PPG andADC. And On-chip EXDMAC allows for parallel data transfer on the internal busand external bus. The H8SX/1658M Group newly added to H8SX/1658R Group thistime boasts the addition of LVD/POR functions.


Main Solutions

Key Features:

  • CPU
    • 32-bit bus
    • Power supply voltage: 3.0-3.6 V
    • Maximum operating frequency: 50 MHz
    • Executes basic instructions in 1 state
    • 32bit Internal multiplier/ divider
  • Internal memory
    • H8SX/1653RF, H8SX/1653M
      (Flash 384 KB, RAM 40 KB)
    • H8SX/1654RF, H8SX/1654M
      (Flash 512 KB, RAM 40 KB)
    • H8SX/1658RF, H8SX/1658M
      (Flash 1024KB, RAM 56KB)
  • Program high speed fetch (32-bit 1 clock access)
  • Bus controller (BSC)
  • DMA controller (DMAC) : 4 ch
  • EXDMAC: 2ch
  • Data transfer controller (DTC)
  • I/O ports: 75 input/output ports, 9 input ports
  • 16-bit timer pulse unit (TPU) : 12 ch
  • Programmable pulse generator (PPG)
  • 8-Bit timers (TMR) : 8 ch
  • Watchdog timer (WDT)
  • I2C bus: 2 ch
  • LVD/POR* *H8SX/1658M group only.
  • A/D converters (High-speed A/D converters 4 ch x 2 units): 8 ch
  • D/A converters: 2 ch
  • Operating modes: 7 Operating modes
  • Built-in USB2.0 (Full speed)
    • Control, bulk, and interrupt mode supported
  • Serial communication interface(SCI) : 6 ch
    • Asynchronous/ clocked synchronous: 4 ch (SCI_0, 1, 2, and 4), asynchronous:2 ch (SCI_5 and 6)
    • Smart Card I/F: 6 ch
    • Hi-speed SCI : 2 ch
  • Package
    • LQFP-120BV(FP-120BV)
  • Development environment
    • Full Emulator (E6000H)*
    • On-chip emulator (E10A-USB)
      *H8SX/1658 group only.
      H8SX/1658M group does not support Full Emulator. However, Full Emulator ofH8SX/1658R group
      can be used for functional evaluation except LVD/POR.

Below you will find information to support the development of your application.


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Hardware Design Support

Title Description
IBIS/BSDL IBIS standard simulation data is required for high-speed board design and can be used to run simulations to examine and troubleshoot issues such as waveform reflection, ringing, and so on, before producing the actual board. BSDL is a data input format supported by most IEEE 1149.1 (JTAG)-compliant tools. The automatic test pattern generation (ATPG) and automatic test equipment functions of these tools facilitate testing.
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