HD6473834HV Renesas Electronics America, HD6473834HV Datasheet - Page 102

• Manufacturer Part Number: HD6473834HV
• Description: MCU 5V 32K PB-FREE 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Lr

Specifications of HD6473834HV

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 5MHz
• Connectivity: SCI
• Peripherals: LCD, PWM
• Number Of I /o: 71
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: OTP
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 12x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS 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,
and
OSC
OSC
/128, /256, /512, /1024, /2048, /4096, /8192,
X
X
1
2
1
2
W
/128. The clock requirements differ from one module to another.
Overview
Block Diagram
System Clock and Subclock
System clock pulse generator
Subclock pulse generator
System clock
W
Subclock
oscillator
oscillator
is the watch clock.
Figure 4.1 Block Diagram of Clock Pulse Generators
Section 4 Clock Pulse Generators
(f
(f )
W
OSC
OSC
W
)
System clock
(1/2, 1/4, 1/8)
divider (1/2)
Subclock
divider
OSC
W
W
W
System clock
divider (1/8)
/2
/4
/8
/2
SUB
W
,
is the subclock,
W
/2,
OSC
/16
W
/4,
W
/8,
OSC
Prescaler W
Prescaler S
W
(13 bits)
is the oscillator
(5 bits)
/16,
SUB
W
/32,
SUB
. Four of
W
to
to
/2
/8192
W
W
W
W
/64,
W
/2
/4
/8
/128
85