RT1540 ic equivalent, cmos can calcined inner code learning code encoding ic.
Vcc
GND
TXD
K0
K1
K2
K3
OSC1
Pin 1 2 3 4 5 6 7 8
I/O
O I I I I I
：
Parameter
Conditions
Symbol Min. Typ.
Operating Voltage
Vcc 1.8 12
Stand by Current
Vcc=12V,OSC stop K1-K3=LOW Output Unloaded
Isb
1.0
Operating Curren.
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