R8A77850BDBGV#RD0Z Renesas Electronics America, R8A77850BDBGV#RD0Z Datasheet - Page 577
R8A77850BDBGV#RD0Z
Manufacturer Part Number
R8A77850BDBGV#RD0Z
Description
IC SUPERH MPU ROMLESS 436BGA
Manufacturer
Renesas Electronics America
Series
SuperH® SH7780r
Datasheet
1.R8A77850AADBGV.pdf
(1694 pages)
Specifications of R8A77850BDBGV#RD0Z
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
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MCK
MCKE
Command
Data
Terminating
resistor
in SDRAM
MODT
As shown in the above figure, when CL is 4, the effective ODT control signal
(MODT) to the SDRAM can be asserted at the same timing as the issue of the
WRITE command. If CL is 5 or greater, MODT is asserted after the issue of the
WRITE command. However, if CL is 3 or less, MODT needs to be asserted
before the issue of the WRITE command, which is not supported by this LSI.
Figure 12.21 ODT Control Signal when CL = 4
write
tAOND
= 2 cycles
High level
3 cycles
for product
with CL = 4
Resistor ON
tAOFD
= 2.5 cycles
Rev.1.00 Jan. 10, 2008 Page 545 of 1658
12. DDR2-SDRAM Interface (DBSC2)
REJ09B0261-0100
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