STM809/810/811/812
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 4., 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 4. Operating and AC Measurement Conditions
Parameter
STM809/810/811/812
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 14. AC Testing Input/Output Waveforms
0.8VCC
0.2VCC
0.7VCC
0.3VCC
AI02568
Figure 15. MR Timing Waveform
MR
RST (1)
tMLRL
tMLMH
trec
Note: 1. RST for STM810/812
AI07837a
11/18