M5295AL/AP/AFP

REJ03D0780-0200 Rev.2.00 Jun 15, 2007

Page 4 of 12

Operating Description

(2)(3)

(4) (5)

(6)

(7) (8)

(9)(10)(11)

(1)

0V

charge of C1 begins.

The voltage at TC pin is 2 V, then

RST2 generates high, when 4 V, C1 is discharged and RST1

generates low.

The voltage at TC pin falls to 2 V, then

RST1 generates high unless normal clock signal is entered

to WD pin,

RST1 repeats this operation.

Before the voltage at TC pin reaches 4 V, if normal clock signal is entered to WD pin, low

RST1 is

canceled.

In the case of entrance of abnormal signal input, as the waveform of TC pin repeats charge and

discharge of

RST1 alternatively from 2 V to 4 V, the RST1 repeats high and low output operation.

0V

0V

Terminology

:

0V

0V

(1):

(2):

(3), (4):

(5):

(6), (7):

(8), (9):

(10):

(11):

TC

RST1

RST2

Figure 1 Operating Waveform