NE56605-42 Просмотр технического описания (PDF) - Philips Electronics
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NE56605-42 Datasheet PDF : 16 Pages
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Philips Semiconductors
System reset with built-in watchdog timer
Product data
NE56605-42
DC ELECTRICAL CHARACTERISTICS
Characteristics measured with VCC = 5.0 V, and Tamb = 25 °C, unless otherwise specified.
See Figure 23 (Test circuit 1) for test configuration used for DC parameters.
SYMBOL
PARAMETER
CONDITIONS
ICC
Supply current during watchdog timer
operation
VSL
VSH
∆VS/∆Tamb
Vhys
VTH
IIH
IIL
VOH1
VOH2
VOL1
VOL2
VOL3
VOL4
IOL1
IOL2
ICT1
Reset detection threshold
Reset detection threshold
Temperature coefficient of reset threshold
Reset threshold hysteresis
CLK input threshold
CLK input current, HIGH-level
CLK input current, LOW-level
Output voltage, HIGH-level
Output voltage, LOW-level
Output sink current
CT charge current
VS = open; VCC = falling
VS = open; VCC = rising
–20 °C ≤ Tamb ≤ 70 °C
VHYS = VSH (rising VCC) – VSL
(falling VCC)
VCLK = 5.0 V
VCLK = 0 V
IRESET = –5.0 µA; VS = open
IRESET current = –5.0 mA; VS = 0 V
IRESET = 3.0 mA; VS = 0 V
IRESET = 10 mA; VS = 0 V
IRESET = 0.5 mA; VS = open
IRESET = 1.0 mA; VS = open
VRESET = 1.0 V; VS = 0 V
VRESET = 1.0 V; VS = open
VCT = 1.0 V; WDC = open during
watchdog operation
ICT2
VCT = 1.0 V;
during power-on reset operation
VCCL1
Supply voltage to assert reset operation
VRESET = 0.4 V;
RESET current = 0.2 mA
VCCL2
VRESET = VCC – 0.1 V;
1 MΩ resistor (pin 2 to GND)
MIN.
–
4.05
4.15
–
50
0.8
–
–20
4.5
4.5
–
–
–
–
10
1.0
–8
–0.8
–
–
TYP.
0.7
4.20
4.30
±0.01
100
1.2
0
–10
4.8
4.8
0.2
0.3
0.2
0.3
16
2.0
–12
–1.2
0.8
0.8
MAX.
1.0
4.35
4.45
–
150
2.0
1.0
–3.0
–
–
0.4
0.5
0.4
0.5
–
–
–24
–2.4
1.0
1.0
UNIT
mA
V
V
%/°C
mV
V
µA
µA
V
V
V
V
V
V
mA
mA
µA
µA
V
V
2001 Aug 22
4
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