R5F61665N50FPV Renesas Electronics America, R5F61665N50FPV Datasheet - Page 393

• Manufacturer Part Number: R5F61665N50FPV
• Description: MCU FLASH 512K ROM 144-LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8SX/1600r

Specifications of R5F61665N50FPV

• Core Processor: H8SX
• Core Size: 16/32-Bit
• Speed: 50MHz
• Connectivity: EBI/EMI, I²C, IrDA, SCI, SmartCard, USB
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 92
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 40K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

DQMLU, DQMLL
[1] A low level of the BREQ signal is sampled at the rising edge of the Bφ signal.
[2] The PALL command is issued.
[3] The bus control signals are driven high at the end of the external access cycle. It takes two cycles or
[4] The BACK signal is driven low, releasing bus to the external bus master.
[5] The BREQ signal state sampling is continued in the external bus released state.
[6] A high level of the BREQ signal is sampled.
[7] The BACK signal is driven high, ending external bus release cycle after one cycle.
[8] When the external space is accessed by an internal bus master or a refresh cycle is requested during external
[9] Normally the BREQO signal goes high at the rising edge of the BACK signal.
Precharge-sel
Figure 9.103 Bus Released State Transition Timing (SRAM Interface is Used)
more after the low level of the BREQ signal is sampled.
bus released while the BREQOE bit is set to 1, the BREQO signal goes low.
Address bus
SDRAMφ
Data bus
BREQO
BREQ
BACK
CKE
RAS
CAS
CS2
WE
[1]
access cycle
NOP
T
External
1
T
2
[2]
PALL NOP
[3]
[4]
External bus released state
[5]
[8]
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
[6]
Rev. 2.00 Oct. 21, 2009 Page 359 of 1454
[9]
NOP
Section 9 Bus Controller (BSC)
[7]
CPU cycle
REJ09B0498-0200