DF2552BR26DV Renesas Electronics America, DF2552BR26DV Datasheet - Page 797

• 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: -

• SUM (one byte): Checksum
(f) Operating Clock Frequency Inquiry
The boot program will return the number of operating clock frequencies, and the maximum and
minimum values.
• Command, H'23, (one byte): Inquiry regarding operating clock frequencies
• Response, H'33, (one byte): Response to operating clock frequency inquiry
• Size (one byte): The number of bytes that represents the minimum values, maximum values,
• Number of operating clock frequencies (one byte): The number of supported operating clock
• Minimum value of operating clock frequency (two bytes): The minimum value of the
• Maximum value (two bytes): Maximum value of the multiplied or divided clock frequency.
• SUM (one byte): Checksum
Command
Response
Division ratio: The inverse of the division ratio, i.e. a negative number (e.g. when the clock is
divided by two, the value of division ratio will be H'FE. H'FE = D'-2)
The number of multiplication ratios returned is the same as the number of multiplication ratios
and as many groups of data are returned as there are types.
and the number of frequencies.
frequency types
(e.g. when there are two operating clock frequency types, which are the main and peripheral
clocks, the number of types will be H'02.)
multiplied or divided clock frequency.
The minimum and maximum values represent the values in MHz, valid to the hundredths place
of MHz, and multiplied by 100. (e.g. when the value is 20.00 MHz, it will be D'2000 and
H'07D0.)
There are as many pairs of minimum and maximum values as there are operating clock
frequencies.
H'23
H'33
Minimum value of operating
clock frequency
···
SUM
Size
Number of operating clock
frequencies
Maximum value of operating clock
frequency
Rev. 6.00 Sep. 24, 2009 Page 749 of 928
Section 20 Flash Memory
REJ09B0099-0600