DF2148ATE20 Renesas Electronics America, DF2148ATE20 Datasheet - Page 210

• Manufacturer Part Number: DF2148ATE20
• Description: IC H8S MCU FLASH 128K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2148ATE20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: Host Interface, I²C, IrDA, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 74
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4 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: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2148ATE20; HD64F2148ATE20

Section 6 Bus Controller
8-Bit 3-State Access Space
Figure 6.6 shows the bus timing for an 8-bit 3-state access space. When an 8-bit access space is
accessed, the upper half (D15 to D8) of the data bus is used.
Wait states can be inserted.
Rev. 4.00 Sep 27, 2006 page 164 of 1130
REJ09B0327-0400
Read
Write
AS/IOS (IOSE = 1)
AS/IOS (IOSE = 0)
Address bus
D15 to D8
D15 to D8
D7 to D0
HWR
RD
Figure 6.6 Bus Timing for 8-Bit 3-State Access Space
T
1
Bus cycle
T
2
Valid
T
3
Invalid
Valid