HD64F3687FPIV Renesas Electronics America, HD64F3687FPIV Datasheet - Page 403

• Manufacturer Part Number: HD64F3687FPIV
• Description: MCU 3/5V 56K I-TEMP PB-FREE 64-L
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300H Tinyr

Specifications of HD64F3687FPIV

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SCI
• Peripherals: PWM, WDT
• Number Of I /o: 45
• Program Memory Size: 56KB (56K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-LQFP
• For Use With: R0K436079S000BE - KIT DEV FOR H8/36079 W/COMPILER
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Procedures for Clearing Settings when Using LVDR and LVDI:
To operate or release the low-voltage detection circuit normally, follow the procedure described
below. Figure 20.5 shows the timing for the operation and release of the low-voltage detection
circuit.
1. To operate the low-voltage detection circuit, set the LVDE bit in LVDCR to 1.
2. Wait for 50 s (t
3. To release the low-voltage detection circuit, start by clearing all of the LVDRE, LVDDE, and
have stabilized by a software timer, etc. Then, clear the LVDDF and LVDUF bits in LVDSR
to 0 and set the LVDRE, LVDDE, and LVDUE bits in LVDCR to 1, as required.
LVDUE bits to 0. Then clear the LVDE bit to 0. The LVDE bit must not be cleared to 0 at the
same timing as the LVDRE, LVDDE, and LVDUE bits because incorrect operation may occur.
Figure 20.5 Timing for Operation/Release of Low-Voltage Detection Circuit
LVDE
LVDRE
LVDDE
LVDUE
LVDON
) until the reference voltage and the low-voltage-detection power supply
Section 20 Power-On Reset and Low-Voltage Detection Circuits (Optional)
t
LVDON
Rev.5.00 Nov. 02, 2005 Page 369 of 500
REJ09B0027-0500