HD64F3642AHV Datasheet, PDF (25/551 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Item
Power-down
modes
Memory
I/O ports
Timers
Section 1 Overview
Description
Seven power-down modes
• Sleep (high-speed) mode
• Sleep (medium-speed) mode
• Standby mode
• Watch mode
• Subsleep mode
• Subactive mode
• Active (medium-speed) mode
Large on-chip memory
• H8/3644: 32-kbyte ROM, 1-kbyte RAM
• H8/3643: 24-kbyte ROM, 1-kbyte RAM
• H8/3642: 16-kbyte ROM, 512 byte RAM (1-kbyte RAM F-ZTAT version)
• H8/3641: 12-kbyte ROM, 512 byte RAM
• H8/3640: 8-kbyte ROM, 512 byte RAM
53 pins
• 45 I/O pins
• 8 input pins
Five on-chip timers
• Timer A: 8-bit timer
Count-up timer with selection of eight internal clock signals divided from the
system clock (φ)^*2 and four clock signals divided from the watch clock
(φ w)^*2
• Timer B1: 8-bit timer
 Count-up timer with selection of seven internal clock signals or event
input from external pin
 Auto-reloading
• Timer V: 8-bit timer
 Count-up timer with selection of six internal clock signals or event input
from external pin
 Compare-match waveform output
 Externally triggerable
Rev. 6.00 Sep 12, 2006 page 3 of 526
REJ09B0326-0600