DF2345TE20 Renesas Electronics America, DF2345TE20 Datasheet - Page 95

• Manufacturer Part Number: DF2345TE20
• Description: MCU 5V 128K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2345TE20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 71
• 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: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2345TE20; HD64F2345TE20

Table 3.2
Note:
The CPU's architecture allows for 4 Gbytes of address space, but the H8S/2345 Group actually
accesses a maximum of 16 Mbytes.
Modes 1, 2, and 4 to 6 are externally expanded modes that allow access to external memory and
peripheral devices.
The external expansion modes allow switching between 8-bit and 16-bit bus modes. After program
execution starts, an 8-bit or 16-bit address space can be set for each area, depending on the bus
controller setting. If 16-bit access is selected for any one area, 16-bit bus mode is set; if 8-bit
access is selected for all areas, 8-bit bus mode is set.
Note that the functions of each pin depend on the operating mode.
The H8S/2345 Group can be used only in modes 1 to 7. This means that the mode pins must be
set to select one of these modes. Do not change the inputs at the mode pins during operation.
3.1.3
The H8S/2345 Group has a mode control register (MDCR) that indicates the inputs at the mode
pins (MD
(SYSCR2) *
registers.
MCU
Operating
Mode
0
1
2 *
3 *
4
5
6 *
7 *
* Not used on ROMless version.
2
Register Configuration
to MD
MD
0
1
2
that control the operation of the H8S/2345 Group. Table 3.3 summarizes these
MCU Operating Mode Selection
2
0
MD
0
1
0
1
), and a system control register (SYSCR) and a system control register 2
1
MD
0
1
0
1
0
1
0
1
0
CPU
Operating
Mode
—
Normal
Advanced
Description
—
On-chip ROM disabled,
expanded mode
On-chip ROM enabled,
expanded mode
Single-chip mode
On-chip ROM disabled,
expanded mode
On-chip ROM enabled,
expanded mode
Single-chip mode
Rev. 4.00 Feb 15, 2006 page 69 of 900
Section 3 MCU Operating Modes
On-Chip
ROM
—
Disabled
Enabled
Disabled
Enabled
External Data Bus
Initial
Width
—
8 bits
8 bits
—
16 bits
8 bits
8 bits
—
REJ09B0291-0400
Max.
Width
16 bits
16 bits
16 bits
16 bits
16 bits