R4F24268NVFQV Renesas Electronics America, R4F24268NVFQV Datasheet - Page 302
R4F24268NVFQV
Manufacturer Part Number
R4F24268NVFQV
Description
MCU 256K FLASH 48K 144-LQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2400r
Datasheet
1.R4F24268NVZFQV.pdf
(1406 pages)
Specifications of R4F24268NVFQV
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
-
Available stocks
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Quantity
Price
Company:
Part Number:
R4F24268NVFQV
Manufacturer:
Renesas Electronics America
Quantity:
135
Company:
Part Number:
R4F24268NVFQV
Manufacturer:
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H8S/2426, H8S/2426R, H8S/2424 Group
Section 6 Bus Controller (BSC)
T
T
T
T
T
Rp
Rr
Rr1
Rcw
Rc2
φ
SDRAMφ
Address bus
Precharge-sel
RAS
CAS
WE
CKE
High
NOP
PALL
REF
Figure 6.68 Auto Refresh Timing
(TPC = 0, TPC0 = 0, RLW1 = 0, RLW0 = 1)
Self-Refreshing
(2)
A self-refresh mode (battery backup mode) is provided for synchronous DRAM as a kind of
standby mode. In this mode, refresh timing and refresh addresses are generated within the
synchronous DRAM.
To select self-refreshing, set the RFSHE bit to 1 in REFCR. When a SLEEP instruction is
executed to enter software standby mode, the SELF command is issued, as shown in figure 6.69.
When software standby mode is exited, the SLFRF bit in REFCR is cleared to 0 and self-refresh
mode is exited automatically. If an auto refresh request occurs when making a transition to
software standby mode, auto refreshing is executed, and then self-refresh mode is entered.
When using self-refresh mode, the OPE bit must not be cleared to 0 in SBYCR.
Page 272 of 1372
REJ09B0466-0350 Rev. 3.50
Jul 09, 2010
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