Bixolon SRP-270 User Manual

Page of 85
 
Rev. 3.02 
- 32 -
SRP-270
4-3-2 RESET Circuit 
 
Reset signal is a signal in order to start-up CPU under Power-on. Reset circuit uses a reset ICTL7705ACD 
(U5). When +5Vdc is fallen under 4.3Vdc by Power-off, reset signal prohibits the system from misoperating 
by lowering down to 0V. 
 
 
 
[Figure 4-4 Reset Block Diagram] 
 
 
[Figure 4-5 Reset Waveform] 
5ms