參數(shù)資料
型號(hào)： S1C6P466D0A0A00
元件分類： 微控制器/微處理器
英文描述： MICROCONTROLLER, UUC140
封裝： DIE-140
文件頁數(shù)： 80/174頁
文件大小： 1582K
代理商： S1C6P466D0A0A00
160
EPSON
S1C6P466 TECHNICAL MANUAL
APPENDIX B S5U1C63000P MANUAL (PERIPHERAL CIRCUIT BOARD FOR S1C63404/454/455/458/466/P466)
B.3 Usage Precautions
To ensure correct use of this board (S5U1C63000P), please observe the following precautions.
B.3.1 Operational precautions
(1) Before inserting or removing cables, turn off power to all pieces of connected equipment.
(2) Do not turn on power or load mask option data if all of the input ports (K00–K03) are held low. Doing
so may activate the multiple key entry reset function.
(3) Before debugging, always be sure to load mask option data.
B.3.2 Differences with the actual IC
(1) Differences in I/O
<Interface power supply>
This board and target system interface voltage is set to +3.3 V. To obtain the same interface voltage as
in the actual IC, attach a level shifter circuit, etc. on the target system side to accommodate the
required interface voltage.
<Each output port’s drive capability>
The drive capability of each output port on this board is higher than that of the actual IC. When
designing application system and software, refer to the technical manual for the S1C63404/454/455/
458/466/P466 to confirm each output port’s drive capability.
<Each port’s protective diode>
All I/O ports incorporate a protective diode for VDD and VSS, and the interface signals between this
board and the target system are set to +3.3 V. Therefore, this board and the target system cannot be
interfaced with voltages exceeding VDD by setting the output ports for open-drain mode.
<Pull-up resistance value>
The pull-up resistance values on this board are set to 220 k
which differ from those for the actual IC.
For the resistance values on the actual IC, refer to the technical manual for the S1C63404/454/455/
458/466/P466.
Note that when using pull-up resistors to pull the input pins high, the input pins may require a
certain period to reach a valid high level. Exercise caution if a key matrix circuit is configured using a
combination of output and input ports, since rise delay times on these input ports differ from those of
the actual IC.
(2) Differences in current consumption
The amount of current consumed by this board differs significantly from that of the actual IC. Inspect-
ing the LEDs on this board may help you keep track of approximate current consumption. The
following factors/components greatly affect device current consumption:
<Those which can be verified by LEDs and monitor pins>
a) Run and Halt execution ratio (verified by LEDs and monitor pins on the ICE)
b) CPU operating voltage select circuit (VDC)
c) OSC3 oscillation on/off circuit (OSCC)
d) CPU clock change circuit (CLKCHG)
e) SVD circuit on/off circuit (SVDON) Available only for the S1C63404/458/466/P466.
f) LCD power supply on/off circuit (LPWR)
g) LCD constant-voltage change circuit (VCCHG)
<Those that can only be counteracted by system or software>
h) Current consumed by the internal pull-up resistors
i) Input ports in a floating state
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