DF38122HWV Renesas Electronics America, DF38122HWV Datasheet - Page 469
DF38122HWV
Manufacturer Part Number
DF38122HWV
Description
IC H8/38122 MCU FLASH 80QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300L SLPr
Datasheet
1.US38024-BAG1.pdf
(684 pages)
Specifications of DF38122HWV
Core Processor
H8/300L
Core Size
8-Bit
Speed
10MHz
Connectivity
SCI
Peripherals
LCD, POR, PWM, WDT
Number Of I /o
50
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
80-QFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
- Current page: 469 of 684
- Download datasheet (5Mb)
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.
15.1
Connect the external power supply to the V
µF between CV
effective simply by adding this external circuit. In the external circuit interface, the external power
supply voltage connected to V
For example, for port input/output levels, the V
V
internal step-down circuit.
PSCKT00A_000020020200
SS
level is that for the low level. The A/D converter analog power supply is not affected by the
Figure 15.1 Power Supply Connection when Internal Step-Down Circuit is Used
When Using Internal Power Supply Step-Down Circuit
CC
and V
Section 15 Power Supply Circuit
SS
, as shown in figure 15.1. The internal step-down circuit is made
Internal
logic
(H8/38124 Group Only)
CC
Step-down circuit
and the GND potential connected to V
Internal
power
supply
Section 15 Power Supply Circuit (H8/38124 Group Only)
CC
V
pin, and connect a capacitance of approximately 0.1
CC
CC
V
CV
SS
level is the reference for the high level, and the
CC
Stabilization
capacitance
(approx. 0.1 µF)
CC
Rev. 8.00 Mar. 09, 2010 Page 447 of 658
pin. As a result, the current consumed
V
CC
= 2.7 to 5.5 V
SS
are the reference levels.
REJ09B0042-0800
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