HD64F3026X25 Renesas Electronics America, HD64F3026X25 Datasheet - Page 539

• Manufacturer Part Number: HD64F3026X25
• Description: MCU 3V 256K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of HD64F3026X25

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 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: -

Notes: 1. Mode pin and FWE pin input must satisfy the mode programming setup time (t
17.5.2
When set to user program mode, the H8/3026F-ZTAT version can program and erase its flash
memory by executing a user program/erase control program. Therefore, on-board reprogramming
of the on-chip flash memory can be carried out by providing on-board means of FWE control and
supply of programming data, and storing a program/erase control program in part of the program
area as necessary.
To select user program mode, select a mode that enables the on-chip ROM (mode 5 or 7), and
apply a high level to the FWE pin. In this mode, on-chip supporting modules other than flash
memory operate as they normally would in modes 5 and 7.
Flash memory programming/erasing should not be carried out in mode 6. When mode 6 is set, the
FWE pin must be driven low.
The flash memory itself cannot be read while being programmed or erased, so the program that
performs programming should be placed in external memory or transferred to RAM and executed
there.
Figure 17.8 shows the execution procedure when user program mode is entered during program
execution in RAM. It is also possible to start from user program mode in a reset-start.
2. For further information on FWE application and disconnection, see section 17.11,
3. See section 4.2.2, Reset Sequence, and section 17.11, Flash Memory Programming and
User Program Mode
with respect to the reset release timing.
Flash Memory Programming and Erasing Precautions.
Erasing Precautions. The H8/3026F-ZTAT version requires a minimum of 20 system
clock cycles for a reset during operation.
Section 17 Flash Memory [H8/3026F-ZTAT Version]
Rev. 2.00 Sep 20, 2005 page 499 of 800
REJ09B0260-0200
MDS
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