R5S77631Y266BGV Renesas Electronics America, R5S77631Y266BGV Datasheet - Page 497
R5S77631Y266BGV
Manufacturer Part Number
R5S77631Y266BGV
Description
IC SUPERH MPU ROMLESS 499BGA
Manufacturer
Renesas Electronics America
Series
SuperH® SH7780r
Datasheet
1.R5S77631Y266BGV.pdf
(2056 pages)
Specifications of R5S77631Y266BGV
Core Processor
SH-4A
Core Size
32-Bit
Speed
266MHz
Connectivity
Audio Codec, I²C, MMC, SCI, SIM, SIO, SSI, USB
Peripherals
DMA, LCD, POR, WDT
Number Of I /o
107
Program Memory Type
ROMless
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.15 V ~ 1.35 V
Data Converters
A/D 4x10b; D/A 2x8b
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
499-BGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
R5S77631Y266BGV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Bit
10 to 8
7 to 5
4 to 2
Bit Name
SRAS
SRC
SCL
Initial
Value
000
000
000
R/W
R/W
R/W
R/W
Description
Minimum Number of Cycles between ACT and PRE
Commands
These bits specify the minimum number of cycles from
ACT command issuance to PRE command issuance in
the same bank (Tras).
000: 6 cycles
001: 7 cycles
010: 8 cycles
011: 9 cycles
Other than above: Setting prohibited
Auto-Refresh/ACT Command Issuance Cycle
These bits specify the number of cycles in the same
bank for the following access times (Trc).
(1) From ACT command issuance to auto refresh
(2) From ACT command issuance to ACT command
issuance
000: 6 cycles
001: 7 cycles
010: 8 cycles
011: 9 cycles
100: 10 cycles
101: 11 cycles
110: 12 cycles
111: 13 cycles
Other than above: Setting prohibited
CAS Latency
These bits specify the CAS latency (CL) in data read.
000: 2.5 cycles
The write value should always be 0.
Section 12 DDR-SDRAM Interface (DDRIF)
Rev. 2.00 May 22, 2009 Page 427 of 1982
REJ09B0256-0200
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