HD64F2638F20J Renesas Electronics America, HD64F2638F20J Datasheet - Page 129

• Manufacturer Part Number: HD64F2638F20J
• Description: IC H8S MCU FLASH 256K 128-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2600r

Specifications of HD64F2638F20J

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: CAN, SCI, SmartCard
• Peripherals: Motor Control PWM, 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): 4.5 V ~ 5.5 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 128-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
3.1
3.1.1
The chip has four operating modes (modes 4 to 7). These modes enable selection of the CPU
operating mode, enabling/disabling of on-chip ROM, and the initial bus width setting, by setting
the mode pins (MD2 to MD0).
Table 3-1 lists the MCU operating modes.
Table 3-1
0 *
1 *
2 *
3 *
6
7
Note: * Not available in the chip.
The CPU’s architecture allows for 4 Gbytes of address space, but the chip actually accesses a
maximum of 16 Mbytes.
Modes 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.
REJ09B0103-0800 Rev. 8.00
May 28, 2010
MCU
Operating
Mode
4
5
Overview
Operating Mode Selection
MD2 MD1 MD0
0
1
MCU Operating Mode Selection
0
1
1
0
Section 3 MCU Operating Modes
0
1
0
1
0
1
0
1
—
CPU
Operating
Mode
—
Advanced
—
Description
On-chip ROM
disabled, expanded
mode
On-chip ROM
enabled, expanded
mode
Single-chip mode
—
Enabled 8 bits
On-Chip
ROM
Disabled 16 bits
Section 3 MCU Operating Modes
—
—
Initial
Width
8 bits
External Data Bus
Page 79 of 1458
—
16 bits
—
Max.
Width
16 bits
16 bits