DF2238RTF6 Renesas Electronics America, DF2238RTF6 Datasheet - Page 242

• Manufacturer Part Number: DF2238RTF6
• Description: MCU 2.2/3V 256K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2200r

Specifications of DF2238RTF6

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 6MHz
• Connectivity: I²C, SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 72
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 3.6 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: HD64F2238RTF6; HD64F2238RTF6

Section 7 Bus Controller
7.5.2
The on-chip peripheral modules are accessed in two states. The data bus is either 8 bits or 16 bits
wide, depending on the particular internal I/O register being accessed. Figure 7.6 shows the access
timing for the on-chip peripheral modules. Figure 7.7 shows the pin states.
Rev. 6.00 Mar. 18, 2010 Page 180 of 982
REJ09B0054-0600
On-Chip Peripheral Module Access Timing
Figure 7.7 Pin States during On-Chip Peripheral Module Access
Internal address bus
Read
access
Write
access
φ
Figure 7.6 On-Chip Peripheral Module Access Cycle
φ
Address bus
AS
RD
HWR, LWR
Data bus
Internal read signal
Internal data bus
Internal write signal
Internal data bus
T
High-impedance state
1
T
1
High
High
High
Bus cycle
Unchanged
Bus cycle
Address
Write data
T
2
Read data
T
2