MM1075 查看數據表（PDF） - Mitsumi

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MM1075

System Reset (with built-in watchdog timer)

Mitsumi 

MITSUMI

System Reset (with built-in watchdog timer) MM1075

(mS)

100

80

TWD 60

40

20

0

50k 100k

1M

10M

100M ∞ (Ω)

RCT

Graph 1 RCT & Monitoring Time

Note : The above graph shows data for when CT=0.1µF.

TWD is proportionate to CT. Refer to the calculation formula for TWD above.

Block Diagram

Note 1 : CP=0.1µF approx.

Note 2 : C- ~1000pF

Note 3 : The watchdog timer can be stopped by connecting the RCT pin to

GND. (Then it functions as a voltage detection circuit.)

Note 4 : TPR and TWD can be varied by pulling up the RCT pin to VCC with a

resistor. The recommended range for RCT is 100kΩ~RCT pin OPEN.

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