HD64F2638F20J Renesas Electronics America, HD64F2638F20J Datasheet - Page 834

IC H8S MCU FLASH 256K 128-QFP

HD64F2638F20J

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

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
-

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
HD64F2638F20J
Manufacturer:
PENESAS
Quantity:
252
H8S/2639, H8S/2638, H8S/2636,
Section 21A ROM
H8S/2630, H8S/2635 Group
(H8S/2636 Group)
21A.11 Flash Memory Emulation in RAM
Making a setting in the RAM emulation register (RAMER) enables part of RAM to be overlapped
onto the flash memory area so that data to be written to flash memory can be emulated in RAM in
real time. After the RAMER setting has been made, accesses cannot be made from the flash
memory area or the RAM area overlapping flash memory. Emulation can be performed in user
mode and user program mode. Figure 21A-15 shows an example of emulation of real-time flash
memory programming.
Start of emulation program
Set RAMER
Write tuning data to overlap
RAM
Execute application program
No
Tuning OK?
Yes
Clear RAMER
Write to flash memory emulation
block
End of emulation program
Figure 21A-15 Flowchart for Flash Memory Emulation in RAM
Page 784 of 1458
REJ09B0103-0800 Rev. 8.00
May 28, 2010

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