D6417709SF167BV Renesas Electronics America, D6417709SF167BV Datasheet - Page 347
D6417709SF167BV
Manufacturer Part Number
D6417709SF167BV
Description
IC SUPER H MPU ROMLESS 208LQFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7700r
Datasheet
1.D6417709SBP167BV.pdf
(809 pages)
Specifications of D6417709SF167BV
Core Processor
SH-3
Core Size
32-Bit
Speed
167MHz
Connectivity
EBI/EMI, FIFO, IrDA, SCI, SmartCard
Peripherals
DMA, POR, WDT
Number Of I /o
96
Program Memory Type
ROMless
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.75 V ~ 2.05 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
208-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Available stocks
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Price
Company:
Part Number:
D6417709SF167BV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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RAS3U, RAS3L
CASU, CASL
Relationship between Refresh Requests and Bus Cycle Requests
If a refresh request is generated during execution of a bus cycle, execution of the refresh is
deferred until the bus cycle is completed. If a refresh request occurs when the bus has been
released by the bus arbiter, refresh execution is deferred until the bus is acquired. If a match
between RTCNT and RTCOR occurs while a refresh is waiting to be executed, so that a new
refresh request is generated, the previous refresh request is eliminated. In order for refreshing
to be performed normally, care must be taken to ensure that no bus cycle or bus right occurs
that is longer than the refresh interval. When a refresh request is generated, the IRQOUT pin is
asserted (driven low). Therefore, normal refreshing can be performed by having the IRQOUT
pin monitored by a bus master other than the SH7709S requesting the bus, or the bus arbiter,
and returning the bus to the SH7709S. When refreshing is started, and if no other interrupt
request has been generated, the IRQOUT pin is negated (driven high).
RD/WR
CKIO
CKE
CSn
Figure 10.27 Synchronous DRAM Self-Refresh Timing
Tp
TRs1
(TRs2)
(TRs2)
Rev. 5.00, 09/03, page 301 of 760
TRs3
(Tpc)
(Tpc)
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