STM708(2005) 查看數據表（PDF） - STMicroelectronics

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STM708
(Rev.:2005)

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STMicroelectronics 

STM705/706/707/708/813L

DC AND AC PARAMETERS

This section summarizes the operating measure-

ment conditions, and the DC and AC characteris-

tics of the device. The parameters in the DC and

AC characteristics Tables that follow, are derived

from tests performed under the Measurement

Conditions summarized in Table 5, Operating and

AC Measurement Conditions. Designers should

check that the operating conditions in their circuit

match the operating conditions when relying on

the quoted parameters.

Table 5. Operating and AC Measurement Conditions

Parameter

STM705/706/707/708;

STM813L

Unit

VCC Supply Voltage

1.0 to 5.5

V

Ambient Operating Temperature (TA)

–40 to 85

°C

Input Rise and Fall Times

≤5

ns

Input Pulse Voltages

0.2 to 0.8VCC

V

Input and Output Timing Ref. Voltages

0.3 to 0.7VCC

V

Figure 29. AC Testing Input/Output Waveforms

0.8VCC

0.2VCC

0.7VCC

0.3VCC

AI02568

Figure 30. Power-fail Comparator Waveform

VCC

VRST

trec

PFO

RST

AI08834b

20/27

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