R5F61668RN50FPV Renesas Electronics America, R5F61668RN50FPV Datasheet - Page 377

• Manufacturer Part Number: R5F61668RN50FPV
• Description: IC H8SX/1668 MCU FLASH 144LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8SX/1600r

Specifications of R5F61668RN50FPV

• 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
• For Use With: R0K561668S000BE - KIT STARTER FOR H8SX/1668R0K561664S001BE - KIT STARTER FOR H8SX/1651HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

(5)
With DKC = 1 or EDKC = 1, the DACK and EDACK signals are asserted a half cycle earlier
compared to the case when DKC = 0 or EDKC = 0.
In fast-page access, the DACK signal continues to be low. In this case, bus cycles can be
distinguished by the BS output timing.
Figure 9.89 shows an output timing example of the DACK and EDACK signals when DKC = 1 or
EDKC = 1, and DDS = 1 or EDDS = 1. Figure 9.90 shows an output timing example of the DACK
and EDACK signals when DKC = 1 or EDKC = 1, and DDS = 0 or EDDS = 0.
Figure 9.89 Output Timing Example of DACK and EDACK when DKC = 1 or EDKC = 1
When DKC = 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
and DDS = 1 or EDDS = 1 (Write)
PALL
T
Row address
p
ACTV
address
Row
T
r
Column address 1
NOP
T
c1
High
WRIT
T
c2
Rev. 2.00 Sep. 24, 2008 Page 343 of 1468
Column address 2
NOP
T
c1
Section 9 Bus Controller (BSC)
WRIT
T
c2
REJ09B0412-0200