The µPD78F9189 is NEW Subseries (small, general-purpose) in the 78K/0S Series. The µPD78F9189 replaces the internal ROM of the µPD789188 with flash memory. Because flash memory allows the program to be written and erased electrically with the device mounted on the board, this product is ideal for the evolution stages of system development, small-scale production and rapid development of new products.
Detailed function descriptions are provided in the following user’s manuals. Be sure to read them before
designing.
µPD789167, 789177, 789167Y, 789177Y Subseries User’s Manual: U14186E 78K/0S Series User's Manual Instruction: U11047E

FEATURES
• Pin compatible with mask ROM version (except VPP pin)
• Flash memory: 24 Kbytes ,Masked Version:16 Kbytes
• High-speed RAM: 512 bytes
• High-speed (0.4 µs: @5.0-MHz operation with main system clock)
• 8-bit resolution A/D converter: 4 channels
• I/O ports: 22
• Serial interface: 1 channel
• 3-wire serial I/O mode / UART mode: 1 channel
• Timers: 6 channels
• 16-bit timer: 1 channel
• 8-bit timer/event counter: 2 channels
• 8-bit timer: 1 channel
• Watch timer: 1 channel
• Watchdog timer: 1 channel
• On-chip 16-bit multiplier
• Power supply voltage: VDD = 4.5 to 5.5 V