DF3048X16V Renesas Electronics America, DF3048X16V Datasheet - Page 200

• Manufacturer Part Number: DF3048X16V
• Description: MCU 5V 128K,PB-FREE 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of DF3048X16V

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 7 Refresh Controller
Refresh Cycle Priority Order: When there are simultaneous bus requests, the priority order is:
For details see section 6.3.7, Bus Arbiter Operation.
Wait State Insertion: When bit AST3 is set to 1 in ASTCR, bus controller settings can cause wait
states to be inserted into bus cycles and refresh cycles. For details see section 6.3.5, Wait Modes.
Rev. 7.00 Sep 21, 2005 page 174 of 878
REJ09B0259-0700
Address
bus
Note:
HWR
(UCAS)
HWR
(UW)
LWR
(LW)
RFSH
AS
CS
(RAS)
3
*
(High)
16-bit access
Figure 7.5(2) DRAM Control Signal Output Timing (2CAS
Row
External bus master > refresh controller > DMA controller > CPU
Read cycle
Column
Row
Write cycle
Column
*
Area 3 top address
Refresh cycle
CAS Mode)
CAS
CAS
(Low)