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PCS812SIUKF Datasheet(PDF) 1 Page - PulseCore Semiconductor

Part # PCS812SIUKF
Description  5-Pin 關P Voltage Supervisor with Manual Reset
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Manufacturer  PULSECORE [PulseCore Semiconductor]
Direct Link  http://www.onsemi.com/
Logo PULSECORE - PulseCore Semiconductor

PCS812SIUKF Datasheet(HTML) 1 Page - PulseCore Semiconductor

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January 2007
PCS811/PCS812
rev 0.1
Notice: The information in this document is subject to change without notice.
PulseCore Semiconductor Corporation
1715 S. Bascom Ave Suite 200 Campbell, CA 95008
• Tel: 408-879-9077 • Fax: 408-879-9018
www.pulsecoresemi.com
5-Pin µP Voltage Supervisor with Manual Reset
FEATURES
Ultra Low Supply Current 1µA(typ.)
Guaranteed Reset Valid to VCC=0.9V
Available in two Output Types: Push-Pull
Active Low (PCS811), Push-Pull Active High
(PCS812)
140ms Min. Power-On Reset Pulse Width
Internally Fixed Threshold 2.3V, 2.6V, 2.7V,
2.9V, 3.1V, 4.0V, 4.4V, and 4.6V
Tight Voltage Threshold Tolerance: 1.5%
Low profile Package: SOT-23-5
APPLICATIONS
Notebook Computers
Digital Still Cameras
PDAs
Critical Microprocessor Monitoring
RESET THRESHOLD
Suffix
Voltage(V)
L
4.6
M
4.4
J
4.0
T
3.1
S
2.9
Q
2.7
R
2.6
P
2.3
DESCRIPTION
PCS811/PCS812 are low-power microprocessor (µP)
supervisory circuits used to monitor power supplies in µP
and digital systems. They provide applications with
benefits of circuit reliability and low cost by eliminating
external components. PCS811/PCS812 also offer a
manual reset input.
These devices perform as valid singles in applications with
VCC ranging from 6.0V down to 0.9V. The reset signal
lasts for a minimum period of 140ms whenever VCC
supply voltage falls below preset threshold. Both PCS811
and PCS812 were designed with a reset comparator to
help identify invalid signals, which last less than 140ms.
The only difference between them is that they have an
active-low RESET output and active-high RESET output,
respectively.
Low supply current (1µA) makes PCS811/PCS812 ideal
for portable equipment. The devices are available in 5-
SOT-23 package
Typical Operating Circuit
VCC
GND
GND
VCC
VCC
RESET
(RESET)
RESET
INPUT
MR
PCS811
(PCS812)
Pushbutton
Switch
µP


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