R4F24268NVRFQV Renesas Electronics America, R4F24268NVRFQV Datasheet - Page 217
R4F24268NVRFQV
Manufacturer Part Number
R4F24268NVRFQV
Description
MCU 256KB FLASH 48K 144-LQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2400r
Datasheet
1.R4F24268NVZFQV.pdf
(1406 pages)
Specifications of R4F24268NVRFQV
Core Processor
H8S/2600
Core Size
16/32-Bit
Speed
33MHz
Connectivity
EBI/EMI, I²C, IrDA, SCI, SSU, UART/USART
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
96
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
48K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 10x10b, D/A 2x8b
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
144-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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H8S/2426, H8S/2426R, H8S/2424 Group
6.4.2
The external address space bus specifications consist of five elements: bus width, number of
access states, number of program wait states, read strobe timing, and chip select (CS) assertion
period extension states. The bus width and number of access states for on-chip memory and
internal I/O registers are fixed, and are not affected by the bus controller.
(1)
A bus width of 8 or 16 bits can be selected with ABWCR. An area for which an 8-bit bus is
selected functions as an 8-bit access space, and an area for which a 16-bit bus is selected functions
as a 16-bit access space. If all areas are designated as 8-bit access space, 8-bit bus mode is set; if
any area is designated as 16-bit access space, 16-bit bus mode is set.
(2)
Two or three access states can be selected with ASTCR. An area for which 2-state access is
selected functions as a 2-state access space, and an area for which 3-state access is selected
functions as a 3-state access space. With the DRAM or synchronous DRAM interface and burst
ROM interface, the number of access states may be determined without regard to the setting of
ASTCR.
When 2-state access space is designated, wait insertion is disabled. When 3-state access space is
designated, it is possible to insert program waits by means of the WTCRA and WTCRB, and
external waits by means of the WAIT pin.
Note: The synchronous DRAM interface is not supported by the H8S/2426 Group and H8S/2424
(3)
When 3-state access space is designated by ASTCR, the number of program wait states to be
inserted automatically is selected with WTCRA and WTCRB. From 0 to 7 program wait states can
be selected. Table 6.2 shows the bus specifications (bus width, and number of access states and
program wait states) for each basic bus interface area.
REJ09B0466-0350 Rev. 3.50
Jul 09, 2010
Bus Width
Number of Access States
Number of Program Wait States
Group. The DRAM interface is not supported by the 5-V version.
Bus Specifications
Section 6 Bus Controller (BSC)
Page 187 of 1372
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