STM818L/M STMicroelectronics, STM818L/M Datasheet - Page 18

• Manufacturer Part Number: STM818L/M
• Description: 5V Supervisor
• Manufacturer: STMicroelectronics

Specifications of STM818L/M

• Operating Temperature: –40 °C to +85 °C (industrial grade)

Operation
2.11
18/43
Negative-going V
The STM690A/692A/703/704/802/805/817/818/819 Supervisors are relatively immune to
negative-going V
reset comparator overdrive (for which the STM690A/692A/703/704/802/805/817/818/819
will NOT generate a reset pulse). The graph was generated using a negative pulse applied
to V
indicated (comparator overdrive). The graph indicates the maximum pulse width a negative
V
increases (further below the threshold), the maximum allowable pulse width decreases. Any
combination of duration and overdrive which lies under the curve will NOT generate a reset
signal. Typically, a V
or less will not cause a reset pulse. A 0.1 µF bypass capacitor mounted as close as possible
to the V
CC
CC
transient can have without causing a reset pulse. As the magnitude of the transient
, starting at V
CC
pin provides additional transient immunity.
CC
CC
RST
transients (glitches).
transient that goes 100 mV below the reset threshold and lasts 40 µs
+ 0.3 V and ending below the reset threshold by the magnitude
CC
Doc ID 10522 Rev 10
transients
Figure 37
STM690A/692A/703/704/802/805/817/818/819
shows typical transient duration versus