DF2552BR26DV Renesas Electronics America, DF2552BR26DV Datasheet - Page 831
DF2552BR26DV
Manufacturer Part Number
DF2552BR26DV
Description
IC H8S/2552 MCU FLASH 176-LFBGA
Manufacturer
Renesas Electronics America
Series
H8® H8S/2500r
Specifications of DF2552BR26DV
Core Processor
H8S/2000
Core Size
16-Bit
Speed
26MHz
Connectivity
I²C, SCI
Peripherals
POR, PWM, WDT
Number Of I /o
104
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 16x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
176-LFBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF2552BR26DV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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21.2.3
When two or more external clocks (e.g.: 10 MHz and 20 MHz) are used as the system clock, input
clock should be switched in software standby mode.
An example of external clock switching circuit is shown in figure 21.6. An example of external
clock switching timing is shown in figure 21.7.
Notes on Switching External Clock
Figure 21.6 External Clock Switching Circuit (Examples)
External clock 1
External clock 2
Control
circuit
External clock switch request
External interrupt signal
External clock switch signal
Rev. 6.00 Sep. 24, 2009 Page 783 of 928
This LSI
Port output
External
interrupt
EXTAL
Section 21 Clock Pulse Generator
REJ09B0099-0600
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