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6 PRECAUTIONS
Take the following precautions when using the S5U1C60N15E:
6.1 Precautions for Operation
• Turn the power of all equipment off before connecting or disconnecting cables.
• To turn the POWER switch of the S5U1C60N15E off, then on again, wait for at least 10 seconds after
turning off before turning on.
• When ROMs are inserted into the ROM sockets, lock the lever securely by positioning it horizontally.
After the ROMs have been removed from the sockets, lock the lever at the same position above. If the
lever is left upright, poor contact may result.
• Confirm that the following ROMs have been installed correctly, then operate the S5U1C60N15E.
(Top panel)
(Under top cover)
(Under top cover)
6.2 Differences from Actual IC
There are some differences in functions between the S5U1C60N15E and the actual IC.
I/O
• The response time has been changed by the differences in logic level, output drive capability, and
pull-down resistance. The minimum operating voltage is also different from the actual IC.
• The K ports and the P ports of the S5U1C60N15E have a 100 kΩ pull-down resistor which are different
from those of the actual IC.
• When the segment terminals are set to DC output, the output signals are delivered with 0 V and +5 V.
LCD
• The LCD contrast is adjusted by the VADJ control. However, the contrast level of each actual IC is
fixed, so it cannot be adjusted.
• The output drive capability is different.
• If the internal voltage regulator is disabled by mask option, short-circuit the LCD power supply
terminals and supply external voltage as shown in Table 6.2.1.
Pins to be
short-circuited
Power-on sequence differences
The S5U1C60N15E performs configuration and determines the internal state when the power is
turned on. Then, it works as the actual IC does. Therefore, the I/O state of the S5U1C60N15E is
unstable until configuration is completed. This affects the power-on reset time.
Difference in current consumption
It is impossible to evaluate current consumption using the S5U1C60N15E.
S5U1C60N15E MANUAL
(EVALUATION BOARD FOR S1C60N15)
Program ROM
Function option ROM
Segment option ROM
Table 6.2.1 LCD drive voltage supplied externally
1/2 bias
Voltage to be
supplied
V
–V
V
(Typ. 3.0 V)
0
3
C2
V
–V
V
(Typ. 1.5 V)
1
4
C1
V
–V
V
(0 V)
2
5
SS
—
—
2
L.HEX, H.HEX
1
F.HEX
1
S.HEX
1/3 bias
Pins to be
short-circuited
V
V
0
V
–V
V
1
3
V
–V
V
2
4
V
5
EPSON
6 PRECAUTIONS
Voltage to be
supplied
(Typ. 3.0 V)
C3
(Typ. 2.0 V)
C2
(Typ. 1.0 V)
C1
V
(0 V)
SS
11
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