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ISL88716 PDF Datasheet ( 特性, スペック, ピン接続図 )

部品番号 ISL88716
部品説明 (ISL88705 - ISL88813) uP Supervisor
メーカ Intersil Corporation
ロゴ Intersil Corporation ロゴ 



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ISL88716 Datasheet, ISL88716 PDF,ピン配置, 機能
®
Data Sheet
ISL88705, ISL88706, ISL88707,
ISL88708, ISL88716, ISL88813
December 6, 2006
FN8092.3
µP Supervisor with Watchdog Timer,
Power-Fail Comparator, Manual Reset and
Adjustable Power-On Reset
Designed with high reset threshold accuracy and low power
consumption, the ISL88705, ISL88706, ISL88707,
ISL88708, ISL88716 and ISL88813 devices are
microprocessor supervisors that are designed to monitor
power-supply and battery functions in microprocessor
systems. They can help to lower system cost, reduce board
space requirements and increase the reliability of systems.
These devices provide essential functions such as supply
voltage supervision by asserting a reset output during
power-up and power-down as well as during brownout
conditions. An auxiliary voltage monitor is provided for
detecting power failures warning the system of low battery
conditions or presence detection. In addition, an
independent watchdog timer helps to monitor
microprocessor activity every 1.6s (typical). An active-low
manual reset is offered and reset signals remain asserted
until VDD returns to proper operating levels.
Users can increase the nominal 200ms power-on reset time-
out
www.DataSheet4U.com
delay
by
adding
an
external
capacitor
to
the
CPOR
pin
on
the ISL88707 and ISL88708.
Features
• Fixed-Voltage Options Allow Precise Monitoring of +3.0V,
+3.3V, and +5.0V Power Supplies
• Additional Voltage Monitor for Power-Fail Detection or
Low-Battery Warning
- Monitors Voltages Down to 1.25V
- Adjustable Power-Fail Input Threshold
• Watchdog Timer Capability With 1.6s Time-out
• Both RST and RST Outputs Available
• 140ms Minimum Reset Pulse Width with Option to
Customize Using an External Capacitor
• Manual Reset Input On All Devices
• Reset Signal Valid Down to VDD = 1V
• Accurate ±1.8% Voltage Threshold
• Immune to Power-Supply Transients
• Ultra Low 10µA Maximum Supply Current at 3V
• Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
• Portable/Battery Powered Equipment
• Notebook/Desktop Computer Systems
• Designs Using DSPs, Microcontrollers or Microprocessors
• Controllers
• Intelligent Instruments
• Communications Systems
• Industrial Equipment
Pinouts
ISL88705, ISL88706
(8 LD PDIP/SOIC)
TOP VIEW
MR 1
VDD 2
GND 3
PFI 4
8 WDO
7 RST
6 WDI
5 PFO
ISL88716, ISL88813
(8 LD PDIP/SOIC)
TOP VIEW
MR 1
VDD 2
GND 3
PFI 4
8 WDO
7 RST
6 WDI
5 PFO
ISL88707, ISL88708
(8 LD PDIP/SOIC)
TOP VIEW
MR 1
VDD 2
GND 3
PFI 4
8 RST
7 RST
6 CPOR
5 PFO
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2005-2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.

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