DESCRIPTION
The µPD780016Y and 780018Y are members of the µPD780018Y subseries of the 78K/0 series microcontrollers. Besides a high-speed, high-performance CPU, these microcontrollers have on-chip ROM, RAM, I/O ports, timer, serial interface, real-time output port, interrupt control, and various other peripheral hardware. The µPD78P0018Y devices including a one-time PROM version and an EPROM version, both of which can operate in the same power supply voltage range as a mask ROM version, and various development tools are available.

FEATURES
• Internal high capacity ROM and RAM
• External memory expansion space: 64K bytes
• Instruction execution time can be changed from high-speed (0.4 µs) to ultra-low-speed (122 µs)
• I/O ports: 88
• 8-bit resolution A/D converter: 8 channels
• Timer: 7 channels
• Serial interface: 3 channels
  • 3-wire serial I/O mode(with automatic data transmit/receive function): 1 channel
  • 3-wire serial I/O mode (with time division transfer function): 1 channel
  • I2C bus mode (supporting multi-task): 1 channel
• Supply voltage : VDD = 2.7 to 5.5 V