R8A77850AADBGV Renesas Electronics America, R8A77850AADBGV Datasheet - Page 568
R8A77850AADBGV
Manufacturer Part Number
R8A77850AADBGV
Description
IC SUPERH MCU 436-BGA
Manufacturer
Renesas Electronics America
Series
SuperH® SH7780r
Datasheet
1.R8A77850AADBGV.pdf
(1694 pages)
Specifications of R8A77850AADBGV
Core Processor
SH-4A
Core Size
32-Bit
Speed
600MHz
Connectivity
Audio Codec, MMC, Serial Sound, SCI, SIO, SPI, SSI
Peripherals
DMA, POR, WDT
Number Of I /o
108
Program Memory Type
ROMless
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
1 V ~ 1.2 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
436-BGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
R8A77850AADBGV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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12. DDR2-SDRAM Interface (DBSC2)
example is shown in section 12.5.11, Method for Securing Time Required for Initialization, Self-
Refresh Cancellation, etc.
(2)
Figure 12.14 shows the relation between the settings of CL, tRAS, tRCD, and tRP, and the issuing
of commands. Figure 12.15 shows the relation to tRRD and tRTP, figure 12.16 shows the relation
to tWR, figure 12.17 shows the relation to tRC, figure 12.18 shows the relation to READ-WRITE,
figure 12.19 shows the relation to WRITE-READ, and figure 12.20 shows the relation to tRFC.
Figure 12.14 corresponds to operation in a case in which, with bank A open, there is read access of
bank A and a page miss occurs. The constraint tRP between the PRE command and ACT
Rev.1.00 Jan. 10, 2008 Page 536 of 1658
REJ09B0261-0100
MCK0,
MCK1
MCKE
MCS
MRAS
MCAS
MWE
MA[14:11]
MA[9:0]
MA[10]
MBA[2:0]
MDQS[3:0]
MDM[3:0]
MDQ[31:0]
Regarding Timing Constraints
SDRAM
command
Invalid
PALL
Figure 12.13 Self-Refresh Operation
REF
SLFRSH
Invalid
Invalid
Invalid
Invalid
Invalid
Self-refresh in progress
RSHX
SLF
tXSNR
REF
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