NE56604-42D 查看數據表（PDF） - Philips Electronics

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NE56604-42D

System reset with built-in Watchdog timer

Philips Electronics 

Philips Semiconductors

System reset with built-in Watchdog timer

Product data

NE56604-42

ORDERING INFORMATION

TYPE NUMBER

PACKAGE

NAME

DESCRIPTION

TEMPERATURE

VERSION RANGE

NE56604-42D

SO8

plastic small outline package; 8 leads; body width 3.9 mm

SOP005 –20 to +70 °C

Part number marking

The package is marked with a four letter code in the first line to the

right of the logo. The first three letters designate the product. The

fourth letter, represented by ‘x’, is a date tracking code. The

remaining two or three lines of characters are internal manufacturing

codes.

PIN CONFIGURATION

CT 1

RESET 2

CLK 3

TOP VIEW

SO8

8 RESET

7 VS

6 RCT

GND 4

5 VCC

SL01280

Figure 2. Pin configuration.

Part number

NE56604-42

Marking

AAD x

PIN DESCRIPTION

PIN

SYMBOL

1

CT

2

RESET

3

CLK

4

GND

5

VCC

6

RCT

7

VS

8

RESET

DESCRIPTION

tWDM, tWDR, tPR adjustment pin.

tWDM, tWDR, tPR times are dependent on the value of external CT capacitor used. See Figure 20 (Timing

Diagram) for definition of tWDM, tWDR, tPR times.

Reset HIGH output pin.

Clock input pin from logic system for Watchdog timer.

Circuit ground.

Power supply pin for circuit.

Watchdog timer control and program pin.

Serves to ENABLE the Watchdog function when connected to pull-up resistor (RCT) to VCC, and DISABLE

the Watchdog when connected to ground. Used in conjunction with CT pin to program tWDM time.

Detection threshold adjustment pin.

The detection threshold can be increased by connecting this pin to VCC with a pull-up resistor. The detection

threshold can be decreased by connecting this pin to ground with a pull-down resistor.

Reset LOW output pin.

2003 Oct 15

3

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