STM6321YWY6F(2008) Просмотр технического описания (PDF) - STMicroelectronics

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производитель

STM6321YWY6F
(Rev.:2008)

5-pin supervisor with watchdog timer and push-button reset

STMicroelectronics 

STM6321/6322STM6821/6822/6823/6824/6825

5

DC and AC parameters

DC and AC parameters

This section summarizes the operating measurement conditions, and the DC and AC

characteristics 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. 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

STM6xxx

Unit

VCC supply voltage

Ambient operating temperature (TA)

Input rise and fall times

Input pulse voltages

Input and output timing ref. voltages

1.0 to 5.5

V

–40 to 85

°C

≤5

ns

0.2 to 0.8VCC

V

0.3 to 0.7VCC

V

Figure 24. AC testing input/output waveforms

0.8VCC

0.2VCC

0.7VCC

0.3VCC

AI02568

Figure 25. MR timing waveform

MR

RST (1)

tMLRL

tMLMH

trec

1. RST for STM6322/6821/6825.

Figure 26. Watchdog timing

VCC

RST

trec

WDI

tWD

AI07837a

AI09136

19/28

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