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NEC 78234 Microcomputers

 
Processor Type Advanced, 8-Bit Real-Time Control Microcomputer With A/D and D/A Convertors.
CPU
  • 8-bit ALU
  • 16K ROM
  • 640 Bytes RAM
  • Both 1-bit and 8-bit logic
  • Instruction Prefetch Queue
  • Hardware Multiply and Divide
  • Memory Expansion
  • 8085 Bus-Compatible
  • 64K Program Address Space
  • 1M Data Address Space
  • I/O Up to 64 I/O Port Lines
    A/D & D/A
  • Eight-Input 8-bit A/D Convertors
  • Two-output 8-bit D/A convertors
  • PWM
  • Two 12-bit PWM Outputs
  • Four Timer Controlled PWM Channels
  • Timer/Counter Extensive Timer/Counter Functions
  • One 16-bit Timer/Counter/Event Counters
  • Three 8-bit Timer/Counter/Event Counters
  • Output Ports Two 4-bit Real Time Output Ports
    Interrupts Extensive Interrupt Controller
  • Vectored Interrupt Handling
  • Programmable Priority
  • Macroservice Mode
  • Serial Ports Two Independant Serial Ports
    Clock Generator On-chip Clock Generator
  • 12-MHz Maximum CPU Frequency
  • 0.33µs Instruction Time
  • Other Features
  • Software Pullup Options
  • Refresh Output For Pseudostatic RAM
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    D78234GJ

    Vcc
    Package
    5V
    96-pin PQFP
    Core Speed 12MHz
    D78234GJ-501