R8A77850AADBGV Renesas Electronics America, R8A77850AADBGV Datasheet - Page 571
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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Figure 12.16 shows a case in which, after a write request, access occurs requiring that bank B be
closed. After the issue of a WRITE command, it is necessary to wait for time tWR or longer after
output of the write data before issuing a PRE command.
Example of CL = 3
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]
SDRAM
command
WRITE
bank A
Valid
Valid
Valid
Invalid
Invalid
Write data
High level
Invalid
Invalid
Figure 12.16 tWR
Invalid
tWR
= 3 cycles
bank A
PRE
Valid
Rev.1.00 Jan. 10, 2008 Page 539 of 1658
Invalid
Invalid
12. DDR2-SDRAM Interface (DBSC2)
Invalid
Invalid
bank A
ACT
Valid
Valid
Valid
Invalid
Invalid
Invalid
REJ09B0261-0100
WRITE
bank A
Valid
Valid
Valid
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