DS1232LP Maxim Integrated Products, DS1232LP Datasheet
DS1232LP
Specifications of DS1232LP
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DS1232LP Summary of contents
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... Industrial temperature -40°C to +85°C available, designated N DESCRIPTION The DS1232LP/LPS Low Power MicroMonitor Chip monitors three vital conditions for a microprocessor: power supply, software execution, and external over-ride. First, a precision temperature- compensated reference and comparator circuit monitors the status of V condition occurs, an internal power-fail signal is generated which forces reset to the active state. When ...
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... The third function is a watchdog timer. The DS1232LP/LPS has an internal timer that forces the reset signals to the active state if the strobe input is not driven low prior to timeout. The watchdog timer function can be set to operate on timeout settings of approximately 150 ms, 600 ms, and 1 ...
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... MICROMONITOR BLOCK DIAGRAM PUSHBUTTON RESET Figure 1 WATCHDOG TIMER Figure DS1232LP/LPS ...
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... TIMING DIAGRAM: PUSHBUTTON RESET Figure 3 TIMING DIAGRAM: STROBE INPUT Figure 4 WATCHDOG TIME-OUTS Table 1 TD GND Float V CC TIME-OUT MIN TYP 62.5 ms 150 ms 250 ms 600 ms 500 ms 1200 DS1232LP/LPS MAX 250 ms 1000 ms 2000 ms ...
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... TIMING DIAGRAM: POWER-DOWN Figure 5 TIMING DIAGRAM: POWER-UP Figure DS1232LP/LPS ...
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... SYMBOL MIN TYP V 4 SYMBOL MIN TYP -0.5V -0.1V I CC1 I 200 CC2 V 4.50 4.62 CCTP V 4.25 4.37 CCTP SYMBOL MIN TYP OUT DS1232LP/LPS + 0. MAX UNITS NOTES =4.5 to 5.5V) CC MAX UNITS NOTES +1 0 500 MAX UNITS NOTES ...
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... Inactive RPU PDLY and within 0.5V of supply rails. ST PBRST with an internal impedance of 40k typical power-down until V CC drops below 2.0V. CC and at TTL levels. ST PBRST DS1232LP/LPS ( =5V CC TYP MAX UNITS ms 610 1000 175 s s 610 1000 drops below 2.0V. remains within ...