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NE56632-XX Datasheet(PDF) 2 Page - NXP Semiconductors

Part No. NE56632-XX
Description  Active-LOW system reset with adjustable delay time
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

NE56632-XX Datasheet(HTML) 2 Page - NXP Semiconductors

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Product data
NE56632-XX
Active-LOW system reset with adjustable delay time
2
2002 Mar 25
853–2329 27919
DESCRIPTION
The NE56632-XX is a family of Active-LOW, power-on reset that
offers precision threshold voltage detection within
±1.5% and super
low operating supply current of typically 3.0
µA. It includes a reset
delay that is user adjustable with an external capacitor.
Several detection threshold voltages are available at 1.9V , 2.0 V,
2.7 V, 2.8 V, 2.9 V, 3.0 V, 3.1 V, 4.2 V, 4.3 V, 4.4 V, 4.5 V, and 4.6 V.
Other thresholds are offered upon request at 100 mV steps from
1.9 V to 4.6 V.
With its ultra low supply current and high precision voltage threshold
detection capability, the NE56632-XX is well suited for various
battery powered applications such as reset circuits for logic and
microprocessors, voltage check, and level detecting. It is available in
the SOT23-5 package.
FEATURES
High precision threshold detection voltage: V
S ±1.5%
Super low operating supply current: 3 µA typ.
Built-in hysteresis voltage: 50 mV typ.
Detection threshold voltage: 1.9 V, 2.0 V, 2.7 V, 2.8 V, 2.9 V,
3.0 V, 3.1 V, 4.2 V, 4.3 V, 4.4 V, 4.5 V, and 4.6 V.
Reset Output: Active-LOW, open collector
Other detection threshold voltages available upon request at
100 mV steps from 1.9 V to 4.6 V.
Large low reset output current: 30 mA typ.
Power-on reset delay time adjustable with external capacitor:
200
µs to 200 ms
Reset assertion with V
CC down to 0.65 V
APPLICATIONS
Reset for microprocessor and logic circuits
Voltage level detection circuit
Battery voltage check circuit
Detection circuit for battery back-up
SIMPLIFIED SYSTEM DIAGRAM
12
3
4
5
NE56632-XX
RPU
TO RESET
TERMINAL
OF CPU
SL01605
CD
TO VCC
Figure 1. Simplified system diagram.


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