HD64F3644H Renesas Electronics America, HD64F3644H Datasheet - Page 103

• Manufacturer Part Number: HD64F3644H
• Description: IC H8 MCU FLASH 32K 64-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Lr

Specifications of HD64F3644H

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI
• Peripherals: PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 64-QFP
• Package: 64PQFP
• Family Name: H8
• Maximum Speed: 8 MHz
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 45
• Interface Type: SCI
• On-chip Adc: 8-chx8-bit
• Number Of Timers: 4
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

4.1
Clock oscillator circuitry (CPG: clock pulse generator) is provided on-chip, including both a
system clock pulse generator and a subclock pulse generator. The system clock pulse generator
consists of a system clock oscillator and system clock dividers. The subclock pulse generator
consists of a subclock oscillator circuit and a subclock divider.
4.1.1
Figure 4.1 shows a block diagram of the clock pulse generators.
4.1.2
The basic clock signals that drive the CPU and on-chip peripheral modules are and
the clock signals have names: is the system clock,
clock, and
The clock signals available for use by peripheral modules are /2, /4, /8, /16, /32, /64,
OSC
OSC
/128, /256, /512, /1024, /2048, /4096, /8192,
W
/128. The clock requirements differ from one module to another.
X
X
1
2
1
2
Overview
Block Diagram
System Clock and Subclock
System clock pulse generator
Subclock pulse generator
System clock
Subclock
W
oscillator
oscillator
is the watch clock.
Figure 4.1 Block Diagram of Clock Pulse Generators
Section 4 Clock Pulse Generators
(f
(f )
OSC
OSC
W
W
)
System clock
(1/2, 1/4, 1/8)
divider (1/2)
Subclock
divider
OSC
W
W
W
System clock
(1/64, 1/32,
/2
/4
/8
1/16, 1/8)
/2
divider
SUB
W
/2,
is the subclock,
Rev. 6.00 Sep 12, 2006 page 81 of 526
OSC
OSC
OSC
OSC
W
/4,
Section 4 Clock Pulse Generators
/128
/64
/32
/16
W
/8,
W
OSC
/16,
Prescaler W
Prescaler S
(13 bits)
(5 bits)
is the oscillator
SUB
REJ09B0326-0600
W
/32,
SUB
W
. Four of
/64, and
to
to
/2
/8192
W
W
W
W
/2
/4
/8
/128