HD64F3684FP Renesas Electronics America, HD64F3684FP Datasheet - Page 405

IC H8 MCU FLASH 32K 64LQFP

HD64F3684FP

Manufacturer Part Number
HD64F3684FP
Description
IC H8 MCU FLASH 32K 64LQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300H Tinyr
Datasheet

Specifications of HD64F3684FP

Core Processor
H8/300H
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, SCI
Peripherals
PWM, WDT
Number Of I /o
45
Program Memory Size
32KB (32K 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
-20°C ~ 75°C
Package / Case
64-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-

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This LSI incorporates an internal power supply step-down circuit. Use of this circuit enables the
internal power supply to be fixed at a constant level of approximately 3.0 V, independently of the
voltage of the power supply connected to the external V
when an external power supply is used at 3.0 V or above can be held down to virtually the same
low level as when used at approximately 3.0 V. If the external power supply is 3.0 V or below, the
internal voltage will be practically the same as the external voltage. It is, of course, also possible to
use the same level of external power supply voltage and internal power supply voltage without
using the internal power supply step-down circuit.
21.1
Connect the external power supply to the V
µF between V
simply by adding this external circuit. In the external circuit interface, the external power supply
voltage connected to V
example, for port input/output levels, the V
level is that for the low level. The A/D converter analog power supply is not affected by the
internal step-down circuit.
PSCKT00A_000020020200
Figure 21.1 Power Supply Connection when Internal Step-Down Circuit is Used
When Using Internal Power Supply Step-Down Circuit
CL
and V
SS
Section 21 Power Supply Circuit
, as shown in figure 21.1. The internal step-down circuit is made effective
CC
and the GND potential connected to V
Internal
logic
Step-down circuit
Internal
power
supply
CC
CC
level is the reference for the high level, and the V
V
pin, and connect a capacitance of approximately 0.1
CC
V
V
SS
CL
Stabilization
capacitance
(approx. 0.1 µF)
CC
pin. As a result, the current consumed
V
CC
Rev.5.00 Nov. 02, 2005 Page 371 of 500
= 3.0 to 5.5 V
SS
are the reference levels. For
Section 21 Power Supply Circuit
REJ09B0027-0500
SS

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