DS1232LPS-2+ Dallas Semiconductor, DS1232LPS-2+ Datasheet

no-image

DS1232LPS-2+

Manufacturer Part Number
DS1232LPS-2+
Description
uP Supervisor, 4.75 or 4.5 V Monitor, Watchdog Timer, 8-Pin SOIC
Manufacturer
Dallas Semiconductor
Type
Monitor Chipr
Datasheet

Specifications of DS1232LPS-2+

Current, Output
-10 mA (High), +10 mA (Low)
Current, Supply
50 μA (CMOS), 500 μA (TTL)
Package Type
SOIC
Temperature, Operating, Range
0 to +70 °C
Time, Fall
300 μs
Voltage, Input
5.3 V (High), 0.8 V (Low)
Voltage, Output, High
4.9 V
Voltage, Output, Low
0.4 V
Voltage, Supply
5 V
Lead Free Status / Rohs Status
RoHS Compliant part Electrostatic Device
Maxim
Description
The DS1232LP/LPS Low-Power MicroMonitor Chip monitors three vital conditions for a microprocessor: power supply, software execution, and external
override. First, a precision temperature-compensated reference and comparator circuit monitors the status of V
occurs, an internal power-fail signal is generated, which forces reset to the active state. When V
kept in the active state for a minimum of 250ms to allow the power supply and processor to stabilize.
Key Features
Key Specifications: Supervisors (1 Monitored Voltage)
Part Number
DS1232LP
Super-low power version of DS1232
50µA quiescent current
Halts and restarts an out-of-control microprocessor
Automatically restarts microprocessor after power failure
Monitors pushbutton for external override
Accurate 5% or 10% microprocessor power supply monitoring
8-pin DIP, 8-pin SO, or space saving µSOP package available
Optional 16-pin SO package available
Industrial temperature -40°C to +85°C available, designated N
>
Products
Reset Threshold
>
Range (V)
3.3 to 5.5
[Supervisors, Voltage Monitors,
Low Reset
Open Drain
Active-
Output
High Reset
Push-Pull
Active-
Output
Sequencers]
Min. Reset
Timeout
85ms to
Range
300ms
Low-Power MicroMonitor Chip
DS1232LP
Watchdog
Input (WDI)
Feature
Nom. Watchdog
Timeout Range
1s to 2s
<1s
CC
returns to an in-tolerance condition, the reset signals are
Manual Reset
Supervisor
Features
CC
. When an out-of-tolerance condition
Thresh. Acc.
(% @+25°C)
Reset
2.5
Max. I
(µA)
50
CC

Related parts for DS1232LPS-2+

DS1232LPS-2+ Summary of contents

Page 1

Maxim > Products > [Supervisors, Voltage Monitors, Description The DS1232LP/LPS Low-Power MicroMonitor Chip monitors three vital conditions for a microprocessor: power supply, software execution, and external override. First, a precision temperature-compensated reference and comparator circuit monitors the status of V ...

Page 2

... For volume-specific prices and delivery, please see the price and availability page Application Notes Application Note 3316: Dallas Semiconductor Microprocessor Supervisor Selection Guide DS1232LP Evaluation Kits none ...

Page 3

... DS1232LP Notes DS1232LP DS1232LP+ DS1232LPN DS1232LPN+ DS1232LPS-2/TR+C01 DS1232LPS-2/T&R/C01 DS1232LPSN+T&R DS1232LPS+T&R T&R Qty 1000/Reel DS1232LPS+ DS1232LPS/T&R T&R Qty 1000/Reel DS1232LPS DS1232LPSN/T&R T&R Qty 1000/Reel Free Buy TYPE PINS Package: Sample FOOTPRINT DRAWING CODE/VAR * PDIP;8 pin; Dwg: 21-0043 (PDF) Use pkgcode/variation: P8-1* PDIP;8 pin; ...

Page 4

... DS1232LPSN+ DS1232LPSN DS1232LPS-2+ Lead-Free DS1232LPS-2+T&R T&R Qty 2500/Reel DS1232LPS-2 DS1232LPS-2/T&R T&R Qty 2500/Reel DS1232LPSN-2+T&R T&R Qty 2500/Reel DS1232LPSN-2+ DS1232LPSN-2 DS1232LPSN-2/T&R T&R Qty 2500/Reel DS1232LPU+ DS1232LPU DS1232LPU/T&R T&R Qty 3000/Reel SOIC;16 pin; -40°C to +85° Dwg: 21-0042 (PDF) C Use pkgcode/variation: W16 +11* SOIC ...

Page 5

... RST drain) - Strobe Input Volt Power CC . When an out-of-tolerance VCC TOL 6 11 RST GND 8 9 RST DS1232LPS 16-Pin SOIC (300-mil) See Mech. Drawings Section 1 8 PBRST VCC TOL RST 4 5 GND RST DS1232LPS-2 8-Pin SOIC (150-mil) See Mech. Drawings Section Detect CC 111899 ...

Page 6

The second function the DS1232LP/LPS performs is pushbutton reset control. The DS1232LP/LPS debounces the pushbutton input and guarantees an active reset pulse width of 250 ms minimum. The third function is a watchdog timer. The DS1232LP/LPS has an internal timer ...

Page 7

ABSOLUTE MAXIMUM RATINGS* Voltage on V Pin Relative to Ground CC Voltage on I/O Relative to Ground Operating Temperature Operating Temperature (Industrial Version) Storage Temperature Soldering Temperature * This is a stress rating only and functional operation of the device ...

Page 8

AC ELECTRICAL CHARACTERISTICS PARAMETER = V PBRST IL RESET Active Time Pulse Width ST V Fail Detect to RST and RST CC V Slew Rate 4.75V to 4.25V CC V Detect to RST and RST CC V Slew Rate 4.25V ...

Page 9

TOP VIEW FRONT VIEW INCHES DIM MIN A 0.053 A1 0.004 B 0.014 C 0.007 e 0.050 BSC E 0.150 H 0.228 L 0.016 VARIATIONS: DIM MIN D 0.189 D 0.337 ...

Page 10

TOP VIEW FRONT VIEW H C 0° -8° L SIDE VIEW INCHES MILLIMETERS DIM MIN MAX MIN MAX A 0.093 0.104 2.35 2.65 A1 0.004 0.012 0.10 0.30 B 0.014 0.019 0.35 ...

Related keywords