D12321VF25V Renesas Electronics America, D12321VF25V Datasheet - Page 776
D12321VF25V
Manufacturer Part Number
D12321VF25V
Description
IC H8S/2300 MCU ROMLESS 128QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Datasheets
1.HEWH8E10A.pdf
(19 pages)
2.D12312SVTE25V.pdf
(341 pages)
3.D12322RVF25V.pdf
(1304 pages)
Specifications of D12321VF25V
Core Processor
H8S/2000
Core Size
16-Bit
Speed
25MHz
Connectivity
SCI, SmartCard
Peripherals
POR, PWM, WDT
Number Of I /o
86
Program Memory Type
ROMless
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
128-QFP
For Use With
EDK2329 - DEV EVALUATION KIT H8S/2329
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
D12321VF25V
Manufacturer:
Renesas Electronics America
Quantity:
135
Company:
Part Number:
D12321VF25V
Manufacturer:
Renesas
Quantity:
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Part Number:
D12321VF25V
Manufacturer:
Renesas Electronics America
Quantity:
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Section 19 ROM
• User program mode
Rev.6.00 Sep. 27, 2007 Page 744 of 1268
REJ09B0220-0600
1. Initial state
3. Flash memory initialization
(1) The program that will transfer the
programming/erase control program to on-chip
RAM should be written into the flash memory by
the user beforehand. (2) The programming/erase
control program should be prepared in the host
or in the flash memory.
The programming/erase program in RAM is
executed, and the flash memory is initialized (to
H'FF). Erasing can be performed in block units,
but not in byte units.
Chip
Chip
Application program
Transfer program
Transfer program
Flash memory
Flash memory
Flash memory
Boot program
Boot program
(old version)
erase
erase control program
New application
New application
Programming/
program
program
Host
Host
Figure 19.5 User Program Mode (Example)
erase control program
Programming/
RAM
RAM
SCI
SCI
2. Programming/erase control program transfer
4. Writing new application program
Chip
Chip
Executes the transfer program in the flash
memory, and transfers the programming/erase
control program to RAM.
Next, the new application program in the host is
written into the erased flash memory blocks. Do
not write to unerased blocks.
Application program
Transfer program
Transfer program
New application
Flash memory
Flash memory
Boot program
Boot program
(old version)
program
New application
program
Host
Host
erase control program
erase control program
Programming/
Programming/
Program execution state
RAM
RAM
SCI
SCI
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