R8A77850AADBGV Renesas Electronics America, R8A77850AADBGV Datasheet - Page 521
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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- Download datasheet (9Mb)
Bit
23 to 20 ⎯
19 to 16 TRAS3 to
15
Bit Name
TRAS0
⎯
Initial
Value
All 0
0011
0
R/W
R
R/W
R
Description
Reserved
These bits are always read as 0. The write value should
always be 0.
Operation when a value other than 0 is written is not
guaranteed.
These bits set the ACT-PRE minimum period constraint
for the same bank. These bits should be set according
to the DDR2-SDRAM specifications. The number of
cycles is the number of DDR clock cycles.
0000: Setting prohibit (If specified, correct operation
0010: Setting prohibit (If specified, correct operation
0011: 4 cycles
0100: 5 cycles
1110: 15 cycles
1111: Setting prohibit (If specified, correct operation
This bit is always read as 0. The write value should
always be 0.
Operation when a value other than 0 is written is not
guaranteed.
tRAS (ACT-PRE period) Setting Bits
Reserved
:
:
cannot be guaranteed.)
cannot be guaranteed.)
cannot be guaranteed.)
Rev.1.00 Jan. 10, 2008 Page 489 of 1658
12. DDR2-SDRAM Interface (DBSC2)
REJ09B0261-0100
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