NE56625-20 查看數據表（PDF） - Philips Electronics
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NE56625-20 Datasheet PDF : 15 Pages
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Philips Semiconductors
System reset with Watchdog timer
Product data
NE56625-20
ORDERING INFORMATION
TYPE NUMBER
PACKAGE
NAME
DESCRIPTION
NE56625-20D
SO8
plastic small outline package; 8 leads; body width 3.9 mm
VERSION
SOP005
TEMPERATURE
RANGE
–20 to +75 °C
PIN CONFIGURATION
CT 1
BC 2
CLK 3
GND 4
TOP VIEW
8 RESET
7 VS
6 RCT
5 VCC
SL01586
Figure 2. Pin configuration.
PIN DESCRIPTION
PIN
SYMBOL
1
CT
2
BC
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 17 (Timing
Diagram) for definition of tWDM, tWDR, tPR times.
Battery check Active-LOW output.
Clock input pin from logic system for Watchdog timer.
Circuit ground.
Positive supply voltage.
Watchdog timer control pin.
The Watchdog timer is enabled when this pin is pulled-up to VCC with a resistor, and disabled when this pin
is connected to ground.
Detection threshold adjustment pin.
The detection threshold can be decreased by connecting this pin to VCC with a pull-up resistor. The
detection threshold can be increased by connecting this pin to ground with a pull-down resistor.
Reset Active-LOW output.
MAXIMUM RATINGS
SYMBOL
PARAMETER
VCC
VVS
VCLK
VOH
Toper
Tstg
P
Power supply voltage
VS pin voltage
CLK pin voltage
RESET and BC pin voltage
Operating temperature
Storage temperature
Power dissipation
MIN.
–0.3
–0.3
–0.3
–0.3
–20
–40
–
MAX.
7
7
7
7
+75
+125
300
UNIT
V
V
V
V
°C
°C
mW
2003 Oct 15
3
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