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Section 1 Overview

Rev. 7.00 Mar 10, 2005 page 3 of 652

REJ09B0042-0700

Item Specification

Clock pulse

generators

Two on-chip clock pulse generators

• System clock pulse generator:

1.0 to 16 MHz: H8/38024 Group

1.0 to 10 MHz: HD64F38024, HD64F38024R, and H8/38024S Group

2.0 to 20 MHz: H8/38124 Group

• Subclock pulse generator:

32.768 kHz, 38.4 kHz* (* does not apply to H8/38124 Group)

H8/38124 Group equipped with on-chip oscillator

Power-down

modes

Seven power-down modes

• Sleep (high-speed) mode

• Sleep (medium-speed) mode

• Standby mode

• Watch mode

• Subsleep mode

• Subactive mode

• Active (medium-speed) mode

Memory Large on-chip memory

• H8/38024, H8/38024S, and H8/38124: 32-Kbyte ROM, 1-Kbyte RAM

• H8/38023, H8/38023S, and H8/38123: 24-Kbyte ROM, 1-Kbyte RAM

• H8/38022, H8/38022S, and H8/38122: 16-Kbyte ROM, 1-Kbyte RAM

• H8/38021, H8/38021S, and H8/38121: 12-Kbyte ROM, 512 byte RAM

• H8/38020, H8/38020S, and H8/38120: 8-Kbyte ROM, 512 byte RAM

I/O ports 66 pins

• 51 I/O pins (50 pins on H8/38124 Group)

• 9 input pins

• 6 output pins

Renesas H8 Series Hardware Manual

Other manuals for Renesas H8 Series