HD64F3048VTF8 Renesas Electronics America, HD64F3048VTF8 Datasheet - Page 674

• 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

Section 19 Flash Memory (H8/3048F: Dual Power Supply (V
(8) Notes concerning mounting board development—handling of V
1. The standard 12 V high voltage is applied to the V
2. 12 V is applied to the V
Rev. 7.00 Sep 21, 2005 page 648 of 878
REJ09B0259-0700
programming flash memory. The voltage at these pins also includes overshoot and noise, and
the following points should be noted to ensure that the 13 V maximum rated voltage is not
exceeded.
a. Bypass capacitors should be inserted to eliminate overshoot and noise. These should be
b. The V
c. The maximum rated voltage is based on the potential of the V
Note: When the user system’s 12 V power supply is connected, attention must be paid to the
When these pins are pulled up to the V
prevent reverse current from flowing to the V
Note: In normal operation, if the mode MD2 pin to which 12 V is applied is to be set to 0, it
positioned as close as possible to the chip’s V
1.0 µF:
0.01 µF: Bypasses high-frequency components such as induction noise.
induction noise. When designing a new board, in particular, noise may be increased by
jumper wires, etc. In this case too, the power supply waveform should be monitored and
measures taken to prevent the maximum rating from being exceeded.
pin oscillates due to current fluctuations, etc., the voltage of the V
may reciprocally exceed the maximum rated voltage. Careful attention must therefore be
paid to stabilizing the reference potential.
should be pulled down with a resistor.
current capacity. A power supply with a small current capacity will not be able to
handle fluctuations in the chip’s operating voltage, resulting in voltage drops and rises
or oscillation that may make it impossible to obtain the rated operating voltage. If the
power supply has a large current capacity, or if the 12 V voltage is turned on abruptly
by means of a switch, etc., caution is required since a voltage exceeding the maximum
rating may be generated due to the inductance component of the power supply wiring
or the power supply characteristics.
Before using the power supply, check the power supply waveform to ensure that the
above problems will not arise.
PP
and mode MD2 pin wiring should be kept as short as possible to suppress
Stabilizes fluctuations in the low-frequency components, such as power supply
ripple.
PP
and mode MD2 pins when programming or erasing flash memory.
CC
line in normal operation, diodes should be inserted to
CC
line when 12 V is applied.
PP
PP
and mode MD2 pins.
and mode MD2 pins when erasing or
PP
= 12 V))
SS
pin. If the potential of this
PP
PP
and mode MD2 pins
and mode MD2 pins