2. ELECTRONICS SPECIFICATIONS EO18-33025
2.3 Description of the Main PC Board
2-4
DC/DC Converter (U22, 23): Type: TS34063
It generates the voltages (+5V, +3.3V) from the power supply voltage
(AC adapter).
+5V and +3.3V are used as the operating voltage for each circuit.
Eternet Transceiver (U8): Type: DM9161
This IC is used for controlling the Ethernet (10BASET/10BASETX).
Regulator (U24, U33): Type: TS68N28CX5, TS9007DCX
It generates the voltages (+1.8) from the DC/DC converter voltage
(+3.3V).
Stepping Motor Driver (U18, U19): Type: PBL3717
This IC is used for controlling the Stepping Motor.
Serial Interface Controller (U12): Type: SP3232ECY
This IC is used for controlling the Serial Interface (RS-232C).
Reset detect circuit (U25): Type: TS358
This IC is single supply dual operation amplifiers.
It detects the voltage depression from +24V and +3.3V and outputs the
Power Down signal to the CPU.
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