FEATURES

• Internal ROM and RAM

• External memory expansion space: 64 Kbytes

• Minimum instruction execution time: 0.24 ms (at fX = 8.38-MHz operation)

• I/O ports: 51 (N-ch open-drain 5-V withstand voltage: 4)

• 8-bit resolution A/D converter: 8 channels (AVDD = 2.7 to 5.5 V)

• Serial interface: 3 channels

• Timer: 5 channels

• Power supply voltage: VDD = 1.8 to 5.5 V