D12321VF25V Renesas Electronics America, D12321VF25V Datasheet - Page 627
![IC H8S/2300 MCU ROMLESS 128QFP](/photos/12/19/121977/d12321vf25v_sml.jpg)
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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D12321VF25V
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D12321VF25V
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13.5.2
If bits CKS2 to CKS0 in TCSR are written to while the WDT is operating, errors may occur in the
incrementation. Software must stop the watchdog timer (by clearing the TME bit to 0) before
changing the value of bits CKS2 to CKS0.
13.5.3
If the mode is switched from watchdog timer to interval timer, or vice versa, while the WDT is
operating, errors may occur in the incrementation. Software must stop the watchdog timer (by
clearing the TME bit to 0) before switching the mode.
13.5.4
If the WDTOVF output signal * is input to the RES pin of the chip, the chip will not be initialized
correctly. Make sure that the WDTOVF signal * is not input logically to the RES pin. To reset the
entire system by means of the WDTOVF signal * , use the circuit shown in figure 13.9.
Note: * The WDTOVF pin function cannot be used in the F-ZTAT versions.
Note: * The WDTOVF pin function cannot be used in the F-ZTAT versions.
Changing Value of CKS2 to CKS0
Switching between Watchdog Timer Mode and Interval Timer Mode
System Reset by WDTOVF Signal *
Figure 13.9 Circuit for System Reset by WDTOVF Signal (Example)
Reset signal to entire system
Reset input
Rev.6.00 Sep. 27, 2007 Page 595 of 1268
Section 13 Watchdog Timer
Chip
WDTOVF *
REJ09B0220-0600
RES
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