PT7M823/824/825
μP Supervisor Circuits
Description
Pin Assignments
NEW PRODUCT
The PT7M823/824/825 family micro-processor (µP) supervisory
circuits are targeted to improve reliability and accuracy of powersupply circuitry in µP’s systems. These devices reduce the complexity
and number of components required to monitor power-supply and
battery functions.
The main functions are:
1. Asserting reset output during power-up, power-down and
brownout conditions for µP system.
2. Watchdog functions
3. Manual reset
(Top View)
RESET
1
GND
2
MR
3
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
WDI
RESET
1
GND
2
RESET
3
5
VCC
4
WDI
SOT25/SOT353 (PT7M824)
(Top View)
RESET
1
GND
2
RESET
3
5
VCC
4
MR
SOT25/SOT353 (PT7M825)
Applications
4
(Top View)
Precision Supply-Voltage Monitor
4.63V (PT7M82xL)
4.38V (PT7M82xM)
3.08V (PT7M82xT)
2.93V (PT7M82xS)
2.63V (PT7M82xR)
2.32V (PT7M82xZ)
2.19V (PT7M82xY)
200ms Reset Pulse Width
Debounced CMOS-Compatible Manual-Reset Input
(PT7M823/825)
Reset Output Signal for Watchdog and Power Abnormal, Manual
Reset
Reset Push-Pull Output
Voltage Monitor for Power-Fail or Low Battery Warning
Guaranteed RESET /RESET Valid at VCC = 1V
VCC
SOT25/SOT353 (PT7M823)
Features
5
Power-Supply Circuitry in µP Systems
Networking
Security System
Server/Storage
Embedded System
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.
2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and
Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain
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