DF2398F20V Renesas Electronics America, DF2398F20V Datasheet - Page 82

• Manufacturer Part Number: DF2398F20V
• Description: IC H8S/2300 MCU FLASH 128QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2398F20V

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 87
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K 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: 128-QFP
• For Use With: YR0K42378FC000BA - KIT EVAL FOR H8S/2378
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

2.9.3
The on-chip supporting 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 2-16 shows the access timing for the on-chip supporting modules.
Figure 2-17 shows the pin states.
Rev.6.00 Oct.28.2004 page 52 of 1016
REJ09B0138-0600H
On-Chip Supporting Module Access Timing
ø
Internal address bus
Read
access
Write
access
Internal read signal
Internal data bus
Internal write signal
Internal data bus
Figure 2-15 Pin States during On-Chip Memory Access
ø
Address bus
AS
RD
HWR, LWR
Data bus
Figure 2-16 On-Chip Supporting Module Access Cycle
High-impedance state
Unchanged
Bus cycle
High
High
High
T
1
T
1
Bus cycle
Address
Write data
Read data
T
2