HD64F3664FY Renesas Electronics America, HD64F3664FY Datasheet - Page 329
HD64F3664FY
Manufacturer Part Number
HD64F3664FY
Description
IC H8 MCU FLASH 32K 48QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300H Tinyr
Datasheet
1.US3664-BAG1.pdf
(446 pages)
Specifications of HD64F3664FY
Core Processor
H8/300H
Core Size
16-Bit
Speed
16MHz
Connectivity
I²C, SCI
Peripherals
PWM, WDT
Number Of I /o
29
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
48-QFP
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.
18.1
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.
Figure 18.1 Power Supply Connection when Internal Step-Down Circuit is Used
When Using Internal Power Supply Step-Down Circuit
CL
and V
SS
Section 18 Power Supply Circuit
, as shown in figure 18.1. 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. 6.00 Mar. 24, 2006 Page 299 of 412
= 3.0 to 5.5 V
SS
are the reference levels. For
Section 18 Power Supply Circuit
REJ09B0142-0600
SS
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