HD64F36912GFH Renesas Electronics America, HD64F36912GFH Datasheet - Page 327
![IC H8 MCU FLASH 8K 32-QFP](/photos/28/60/286098/32-lqfp_sml.jpg)
HD64F36912GFH
Manufacturer Part Number
HD64F36912GFH
Description
IC H8 MCU FLASH 8K 32-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300H Tinyr
Datasheet
1.DF36912GFHV.pdf
(442 pages)
Specifications of HD64F36912GFH
Core Processor
H8/300H
Core Size
16-Bit
Speed
12MHz
Connectivity
I²C, SCI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
18
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
32-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD64F36912GFH
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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The low-voltage detection circuit is enabled after reset. To enable or disable the low-voltage
detection circuit correctly, follow the procedure described below. Figure 17.7 shows the timing for
the operation and release of the low-voltage detection circuit.
1. To disable the low-voltage detection circuit, clear all of the LVDRE, LVDDE, and LVDUE
2. To enable the low-voltage detection circuit, set the LVDE and BGRE bits in LVDCR to 1.
3. Wait for 50 s (t
bits to 0. Then, clear the LVDE and BGRE bits to 0. Set the VDDII bit in LVDCR if
necessary. The LVDE and BGRE bits must not be cleared to 0 at the same timing as the
LVDRE, LVDDE, and LVDUE bits because incorrect operation may occur.
When the voltages input on the ExtU and ExtD pins are used as the compared voltage, clear
the LVDDII bit to 0.
voltage-detection power supply have settled. Then, clear the LVDDF and LVDUF bits in
LVDSR to 0 and set the LVDRE, LVDDE, and LVDUE bits in LVDCR to 1, if necessary.
Operating Procedures for Enabling/Disabling LVDR and LVDI Circuits
Figure 17.7 Timing for Enabling/Disabling of Low-Voltage Detection Circuit
LVDE
BGRE
VDDII
LVDRE
LVDDE
LVDUE
Longer than one instruction operation time
LVDON
Section 17 Band-Gap Circuit, Power-On Reset, and Low-Voltage Detection Circuits
) given by a software timer until the reference voltage and the low-
Rev. 3.00 Sep. 14, 2006 Page 297 of 408
t
LVDON
REJ09B0105-0300
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