SP813LEP datasheet(13/18 Pages) SIPEX

13 / 18 page

OCT 17-06 RevB

SP705 Low Power Microprocessor Supervisory Circuits

Applications

The SP705-708/813L/813M series offers

unmatched performance and the lowest power

consumption for these industry standard devices.

Refer to Figures 20 and 21 for supply current

performance characteristics rated against

temperature and supply voltages.

Table 2 shows how the SP705-708/813L/813M

series can be used instead of the Dallas

Semiconductor DS1232LP/LPS.

Table 2

illustrates to a designer the advantages and trade-

offs of the SP705-708/813L/813M series

compared to the Dallas Semiconductor device.

While the names of the pin descriptions may

differ, the functions are the same or very similar.

Figure 20. Supply Current vs. Temperature

Figure 21. Supply Current vs. Supply Voltage

Unlike the DS1232, the SP705-708/813L/813M

series has a separate watchdog output pin WDO

which can be simply connected to the MR input

to generate a Reset signal. The DS1232 has pin

selectable features, while the SP705-708/813L/

813M series has more fixed functions of reset

threshold and watchdog time-out delay. For

most applications, the fixed functions will be

preferred, with the benefit of reduced cost due to

a less complex part. In addition, the SP705-708/

813L/813M series has a power fail input and

output function not available with the DS1232

that is useful for monitoring systems with

unregulated supply voltages. The SP705-708/

813L/813M series is available in one of the

industry's smallest space-saving package sizes,

the

µSOIC.

-40C

25C

+85C

4.75V

5.0V

5.5V

Centigrade Temperature

4.75V

5.0V

5.5V

-40C

25C

+85C

VCC

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