Datasheet

STM6315 Summary description
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1 Summary description
The STM6315 Microprocessor Reset Circuit is a low power supervisory device used to
monitor power supplies. It performs a single function: asserting a reset signal whenever the
V
CC
supply voltage drops below a preset value and keeping it asserted until V
CC
has risen
above the preset threshold for a minimum period of time (t
rec
). It also provides a manual
reset input (MR
). The open drain RST output can be pulled up to a voltage higher than V
CC
,
but less than 6V.
The STM6315 comes with standard factory-trimmed reset thresholds of 2.63V, 2.93V,
3.08V, 4.38V, and 4.63V. The STM6315 is available in the SOT143-4 package.
Figure 1. Logic diagram
Figure 2. SOT143-4 connections (top view)
Table 1. Signal names
Symbol Description
V
CC
Supply voltage
MR
Manual reset input
RST
Active-low open drain reset output
V
SS
Ground
AI11162
V
CC
STM6315
V
SS
RST
MR
1
RST
V
CC
V
SS
AI11163
2
3
4
MR