HD6417708SF60V Renesas Electronics America, HD6417708SF60V Datasheet - Page 274

• Manufacturer Part Number: HD6417708SF60V
• Description: IC SUPERH MPU ROMLESS 208LQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of HD6417708SF60V

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 60MHz
• Connectivity: EBI/EMI, SCI, SmartCard
• Peripherals: POR, WDT
• Number Of I /o: 8
• Program Memory Type: ROMless
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 208-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Ram Size: -
• Program Memory Size: -
• Data Converters: -

Power-On Sequence: For DRAM after powering on, a minimum wait time of 100 µs or 200 µs,
or more during which no access can be performed, should be provided, followed by the prescribed
number (usually 8 or more) of dummy CAS-before-RAS refresh cycles. As the bus state controller
does not perform any special operations for a power-on reset, the power-on sequence must be
carried out by the initialization program executed after a power-on reset.
254
CKIO
RAS
CASxx
RD/WR
CS2 or CS3
(High)
TRc
Figure 10.22 DRAM Self-Refresh Cycle Timing
TRr1
TRrw
TSR1
TSR1
TSR2
(Tpc)
(Tpc)