R5F61668MZN50FPV Renesas Electronics America, R5F61668MZN50FPV Datasheet - Page 363

• Manufacturer Part Number: R5F61668MZN50FPV
• Description: MCU FLASH 1024K ROM 144-LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8SX/1600r

Specifications of R5F61668MZN50FPV

• 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: 1MB (1M x 8)
• Program Memory Type: FLASH
• Ram Size: 56K 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: -

(3)
When the SDRAM interface is written to, one Trwl cycle is inserted after the Tc2 cycle. The
DACK and EDACK signals stay asserted until the end of the Trwl cycle. The hold time of data
output from an external device can be extended by one cycle.
Figure 9.87 shows an output timing example of the DACK and EDACK signals when TRWL = 1
with DDS = 1, EDDS = 1, DKC = 0 and EDKC = 0.
Figure 9.87 Output Timing Example of DACK and EDACK when TRWL = 1 (Write)
When TRWL = 1
DACK or EDACK
Precharge-sel
Address bus
D15 to D8
SDRAMφ
D7 to D0
DQMLU
DQMLL
RD/WR
RAS
CAS
CKE
WE
CS
BS
Row address
PALL ACTV NOP
T
p
address
Row
T
r
T
Column address 1
c1
WRIT
T
c2
High
T
rwl
Rev. 1.00 Jan. 29, 2010 Page 331 of 1380
NOP
T
Column address 2
c1
WRIT
T
Section 9 Bus Controller (BSC)
c2
T
NOP
rwl
REJ09B0596-0100