D75108CW NEC, D75108CW Datasheet - Page 13

• Manufacturer Part Number: D75108CW
• Description: Search -----> UPD75108CW
• Manufacturer: NEC

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3.5
in which the internal fuctions of the PD75108 are tested (solely used for IC tests), is provided to the P00/INT4
and RESET pins.
even when the PD75108 is in normal operation, if noise exceeding the V
and the above montioned problem may occur.
be avoided, suppress the noise using a capacitor or diode as shown in the figure below.
PD75108 will enter the test mode, and this will cause problems for normal operation.
In addition to the functions described in Sections 3.1 and 3.2, an exclusive function for setting the test mode,
If a voltage exceeding V
As an example, if the wiring to the P00/INT4 pin or the RESET pin is long, stray noise may be picked up
Therefore, all wiring to these pins must be made short enough to not pick up stray noise. If noise cannot
NOTES ON USING THE P00/INT4, AND RESET PINS
Connect a diode across P00/INT4 and
RESET , and V
P00/INT4, RESET
DD
DD
.
is applied to either of these pins, the PD75108 is put into test mode. Therefore,
V
DD
V
DD
Connect a capacitor across P00/INT4 and
RESET , and V
P00/INT4, RESET
DD
is input into any of these pins, the
DD
PD75104, 75106, 75108
.
V
DD
V
DD
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