FEATURES

• Internal high-capacity ROM and RAM

• External memory expansion space: 64 Kbytes

• Minimum instruction execution time can be changed

from high-speed (0.4 ms) to ultra-low-speed (122 ms)

• I/O ports: 88 (N-ch open-drain: 8)

• 8-bit resolution A/D converter: 8 channels

• 8-bit resolution D/A converter: 2 channels

• Serial interface: 3 channels

• 3-wire serial I/O, 2-wire serial I/O, and I2C

bus mode: 1 channel

• 3-wire serial I/O mode: 1 channel

• 3-wire serial I/O and UART mode: 1 channel

• Timer: 7 channels

• Supply voltage: VDD = 1.8 to 5.5 V