HD64F2638F20J Renesas Electronics America, HD64F2638F20J Datasheet - Page 793

• 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
21A.1 Overview
The H8S/2636 has 128 kbytes of on-chip flash memory, or 128 kbytes of on-chip mask ROM. The
ROM is connected to the bus master via a 16-bit data bus, enabling both byte and word data to be
accessed in one state. Instruction fetching is thus speeded up, and processing speed increased.
The on-chip ROM is enabled and disabled by setting the mode pins (MD2 to MD0).
The flash memory version can be erased and programmed on-board, as well as with a special-
purpose PROM programmer.
21A.1.1 Block Diagram
Figure 21A-1 shows a block diagram of 128-kbyte ROM.
21A.1.2 Register Configuration
The H8S/2636 operating mode is controlled by the mode pins and the MDCR register. The register
configuration is shown in table 21A-1.
REJ09B0103-0800 Rev. 8.00
May 28, 2010
Figure 21A-1 Block Diagram of ROM (128 kbytes)
Section 21A ROM
H'01FFFE
H'000000
H'000002
(H8S/2636 Group)
Internal data bus (upper 8 bits)
Internal data bus (lower 8 bits)
H'01FFFF
H'000001
H'000003
Section 21A ROM
(H8S/2636 Group)
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