HD64F2638F20J Renesas Electronics America, HD64F2638F20J Datasheet - Page 899

• 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
21C.1 Overview
The H8S/2635 Group has 192 kbytes of on-chip flash memory, or 192 kbytes 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.
21C.1.1 Block Diagram
Figure 21C-1 shows a block diagram of 192-kbyte and 128-kbyte ROM.
REJ09B0103-0800 Rev. 8.00
May 28, 2010
Note: * ROM addresses for the H8S/2635 extend from H'000000 to H'02FFFF (192 kbytes),
Figure 21C-1 Block Diagram of ROM 192 kbytes (128 kbytes) *
and for the H8S/2634 from H'000000 to H'01FFFF (128 kbytes).
(H'01FFFE)*
H'02FFFE
Section 21C ROM
H'000000
H'000002
(H8S/2635 Group)
Internal data bus (upper 8 bits)
Internal data bus (lower 8 bits)
(H'01FFFF)*
H'02FFFF
H'000001
H'000003
Section 21C ROM
(H8S/2635 Group)
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