HD64F3048VTF8 Renesas Electronics America, HD64F3048VTF8 Datasheet - Page 687

• Manufacturer Part Number: HD64F3048VTF8
• Description: IC H8 MCU FLASH 128K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of HD64F3048VTF8

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 8MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F3048VX8

Bits 1 and 0—Divide (DIV1 and DIV0): These bits select the frequency division ratio, as
follows.
20.5.3
The DIVCR setting changes the frequency, so note the following points.
Table 20.5 Comparison with the Clock Frequency Ranges in the H8/3048 Group
ROM type
Product type
Guaranteed
clock
frequency
range
Crystal oscillation range
Bit 1: DIV1
0
1
Select a frequency division ratio that stays within the assured operation range specified for the
clock cycle time t
limit of the clock frequency range. Avoid settings that give system clock frequencies less than
the lower limit.
Table 20.5 shows the comparison with the clock frequency range for each version.
All on-chip module operations are based on . Note that the timing of timer operations, serial
communication, and other time-dependent processing differs before and after any change in
the division ratio. The waiting time for exit from software standby mode also changes when
the division ratio is changed. For details, see section 21.4.3, Selection of Waiting Time for Exit
from Software Standby Mode.
Usage Notes
4.5–5.5 V
3.15–5.5 V
2.7–5.5 V
Bit 0: DIV0
0
1
0
1
cyc
in the AC electrical characteristics. Note that
1–16 MHz
2–16 MHz
H8/3048F
1–8 MHz
F-ZTAT
—
1–18 MHz
1–13 MHz
2–18 MHz
1–8 MHz
H8/3048
Frequency Division Ratio
1/1
1/2
1/4
1/8
ZTAT
Mask ROM
H8/3048
Version
Rev. 7.00 Sep 21, 2005 page 661 of 878
Mask ROM
Section 20 Clock Pulse Generator
H8/3047
Version
Mask ROM
1–18 MHz
1–13 MHz
2–18 MHz
1–8 MHz
MIN
must be in the lower
Mask ROM
H8/3045
Version
REJ09B0259-0700
(Initial value)
Mask ROM
H8/3044
Version