UPD4990AG Renesas Electronics America, UPD4990AG Datasheet - Page 11

• Manufacturer Part Number: UPD4990AG
• Manufacturer: Renesas Electronics America

Specifications of UPD4990AG

• Lead Free Status / RoHS Status: Supplier Unconfirmed

PD4990A
Interval output function
An interrupt signal can be output by selecting an output from TP.
Interrupt signals are output repeatedly at specified intervals until their output is suppressed by a command.
Only output flags can be reset to operate the timer continuously.
0.5 s
1 s
1 s
1 s
Interval Output
Interval Timer
Flag Reset
Clock Stop
Interval of 1 second
The interval signal waveform is rectangular (50 % duty) if not reset.
The interval timer is independent of the Timer Counter, so it is not affected by the resetting of the current
time timer.
30 s
60 s
Interval Output
Flag Reset
The interval timer accuracy is 15.625 ms.
* The interval timer counter is reset by [1, 0, 0, 0] through [1, 0, 1, 1].
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