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AP1702 Datasheet Preview

AP1702 Datasheet

3-Pin Microprocessor Reset Circuits

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AP1702 pdf
3-Pin Microprocessor Reset Circuits
AP1701/2/3/4
„ Features
- Precision Monitoring of +3V, +3.3V, and +5V
Power-Supply Voltages
- Fully Specified Over Temperature
- Available in Three Output Configurations
- Push-Pull RESET Low Output (AP1701/3)
- Push-Pull RESET High Output (AP1702/4)
- 140ms min Power-On Reset Pulse Width
- 12µA Supply Current
- Guaranteed Reset Valid to VCC = +1V
- Power Supply Transient Immunity
- No External Components
- 3-pin SOT23 package
„ Applications
- Computers
- Controllers
- Intelligent Instruments
- Critical µP and µC Power Monitoring
- Portable/Battery Powered Equipment
- Automotive
„ General Description
The AP1701/2/3/4 are used for microprocessor (µP)
supervisory circuits to monitor the power supplies in
µP and digital systems. They provide excellent
circuit reliability and low cost by eliminating external
components and adjustments when used with +5V,
+3.3V, +3.0V powered circuits.
These circuits perform a single function: they assert
a reset signal whenever the VCC supply voltage
declines below a preset threshold, keeping it
asserted for at least 140ms after VCC has risen
above the reset threshold. Reset thresholds
suitable for operation with a variety of supply
voltages are available. The AP1701/2/3/4 have
push pull outputs. The AP1701/3 have an active low
RESET output, while the AP1702/4 has an active
high RESET output. The reset comparator is
designed to ignore fast transients on VCC, and the
outputs are guaranteed to be in the correct logic
state for VCC down to 1V. Low supply current
makes the AP1701/2/3/4 ideal for use in portable
equipment. The AP1701/2/3/4 is available in a 3-pin
SOT23 package.
„ Pin Assignments
(Top View)
GND 1
RESET (RESET) 2
AP1701
AP1702
3 VCC
SOT-23
(Top View)
RESET (RESET) 1
GND 2
AP1703
AP1704
3 VCC
SOT-23
„ Pin Descriptions
Name
GND
RESET
(RESET)
VCC
Description
Ground
Reset output pin
L: for AP1701/3
H: for AP1702/4
Operating voltage input
This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of
this product. No rights under any patent accompany the sale of the product.
Rev.1.0 May. 7, 2004
1/8



Anachip
Anachip

AP1702 Datasheet Preview

AP1702 Datasheet

3-Pin Microprocessor Reset Circuits

No Preview Available !

AP1702 pdf
3-Pin Microprocessor Reset Circuits
AP1701/2/3/4
„ Ordering Information
AP170X X X X
Enable
1: Active-Low
2: Active-High
3: Active-Low
4: Active-High
Voltage
A: 4.63
B: 4.38
C: 4.00
D: 3.08
E: 2.93
F: 2.63
Package
W:SOT23
Lead Free
Blank : Normal
L : Lead Free Package
„ Absolute Maximum Ratings
Symbol
VCC
VRESET
ICC
IO
VR
PD
TOP
TST
TLEAD
Parameter
Terminal Voltage (with respect to GND)
RESET, RESET (push-pull)
Input Current, VCC
Output Current, RESET, RESET
Rate of Rise, VCC
Continuous Power Dissipation (TA = +70°C),
de-rate 4mW/°C above +70°C
Operating Temperature Range
Storage Temperature Range
Lead Temperature (soldering, 10s)
Rating
-0.3 to +6.0
-0.3 to (VCC + 0.3)
20
20
100
320
-40 to +105
-65 to +150
+300
Unit
V
V
mA
mA
V/µS
mW
°C
°C
°C
Anachip Corp.
www.anachip.com.tw
Rev.1.0 May.7, 2004
2/8


Part Number AP1702
Description 3-Pin Microprocessor Reset Circuits
Maker Anachip
Total Page 8 Pages
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