TSC TTP 243 Plus - Reset Circuit; Memory System

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TTP-243 Plus/ 243E Plus/
342 Plus Bar Code Printer
3.3 Reset Circuit
Fig. 3.3 Reset Circuit
This is the reset circuit .The TS809CXA IC outputs the system reset signal of “LOW”
when the driving voltage is lower than 4.63V (Typical),U31 NO use.
3.4 Memory System
Fig. 3.4 FLASH ROMS and DRAM Diagram
This is the memory circuit. The U8 & U9 are 2M Byte FLASH ROM and U10 is 2M Byte
DRAM .