Internal Power-On Reset - Samsung S3F80P5X User Manual

S3F80P5_UM_ REV1.00 RESET

INTERNAL POWER-ON RESET

The power-on reset circuit is built on the S3F80P5 product. When power is initially applied to the MCU, or when
V drops below the V , the POR circuit holds the MCU in reset until V has risen above the V level.
DD POR DD LVD
t
WAIT
Normal Operating Mode
V
DD
V
LVD
V
POR
Reset
Pulse
Internal
RESET
Release
Figure 8-4. Timing Diagram for Internal Power-On Reset Circuit
8-5