HD6417751RF240V Renesas Electronics America, HD6417751RF240V Datasheet - Page 51

• Manufacturer Part Number: HD6417751RF240V
• Description: MPU 1.5/3.3V 0K PB-FREE 256-QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7750r

Specifications of HD6417751RF240V

• Core Processor: SH-4
• Core Size: 32-Bit
• Speed: 240MHz
• Connectivity: EBI/EMI, FIFO, SCI, SmartCard
• Peripherals: DMA, POR, WDT
• Number Of I /o: 39
• Program Memory Type: ROMless
• Ram Size: 48K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 256-QFP Exposed Pad, 256-eQFP, 256-HQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

Item
23.3.3 Bus Timing
Figure 23.23
Synchronous DRAM
Normal Read Bus Cycle:
ACT + READ
Commands, Burst
(RASD = 1, RCD [1:0] =
01, CAS Latency = 3)
Figure 23.24
Synchronous DRAM
Normal Read Bus Cycle:
PRE + ACT + READ
Commands, Burst
(RASD = 1, RCD [1:0] =
01, TPC [2:0] = 001,
CAS Latency = 3)
Figure 23.25
Synchronous DRAM
Normal Read Bus Cycle:
READ Command, Burst
(RASD = 1, CAS
Latency = 3)
Figure 23.28
Synchronous DRAM
Normal Write Bus Cycle:
ACT + WRITE
Commands, Burst
(RASD=1, RCD [1:0] =
01, TRWL [2:0] = 010)
Figure 23.29
Synchronous DRAM
Normal Write Bus Cycle:
PRE + ACT + WRITE
Commands, Burst
(RASD = 1, RCD [1:0] =
01, TPC [2:0] = 001,
TRWL [2:0] = 010)
Figure 23.30
Synchronous DRAM
Normal Write Bus Cycle:
WRITE Command,
Burst (RASD = 1, TRWL
[2:0] = 010)
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Revision (See Manual for Details)
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Rev.4.00 Oct. 10, 2008 Page xlix of xcviii
REJ09B0370-0400