DS1834A Maxim Integrated Products, DS1834A Datasheet
DS1834A
Specifications of DS1834A
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DS1834A Summary of contents
Page 1
FEATURES 5V power-on reset 3.3V power-on reset Internal power is drawn from higher of either the 5V input or the 3. Excellent for systems designed to operate with dual power supplies Asserts resets during power transients Pushbutton ...
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... This allows the power supply and system power to stabilize before RST is released. All internal operating current for the DS1834 will be drawn from the input with the highest voltage level. The outputs will draw current only from the controlling input ( 3.3V IN). DS1834 BLOCK DIAGRAM Figure 1 DS1834A BLOCK DIAGRAM OUTPUT Figure DS1834/A/D ...
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Tolerance Select The DS1834 provides two TOL inputs for individual customization of the DS1834 to specific application requirements. If the TOL for the 5-volt supply is tied to the 5-volt input a 10% tolerance is selected for the 5 volt ...
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... During both power-up and power-down this arrangement will draw current when state. A value of about 100 k =should be adequate to maintain a valid condition. The DS1834A requires pull-up resistors on the outputs to maintain a valid output. The value of the resistors is not critical in most cases but must be set low enough to pull the output to a high state. A common value used (see Figure 6 and Figure 7) ...
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TIMING DIAGRAM: POWER-DOWN Figure 8 TIMING DIAGRAM: POWER-UP Figure DS1834/A/D ...
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... Voltage on V Pin Relative to Ground IN Voltage on RST (5V) Pin Relative to Ground Voltage on RST (3.3V) Pin Relative to Ground Voltage on & RST (DS1834A) Pin PBRST Relative to Ground Operating Temperature Storage Temperature Soldering Temperature * This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operation sections of this specification is not implied ...
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... IN(MAX) =2.7V (valid for DS1834 and DS1834D only [=5.5V. and [=3.6V. and minimum will not generate a reset. CCTP DS1834 DS1834A DS1834 DS1834A DS1834 DS1834A 834 834A =1.2V to 5.5V) CC TYP MAX UNITS 350 500 ms µs 2 µs ns 350 500 ...