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The MAX213ECAI belongs to the MAX213E.It is designed for RS-232 and V.28 communications in harsh environments.The MAX213E is available in 28-pin SO packages, as well as a 28-pin SSOP that uses 60% less board space.
Here are some information about its features.(1)4 RS-232 drivers;(2)5 RS-232 receivers;(3)2 receivers active in shutdown;(4)4 external capacitors;(5)low-power shutdown;(6)TTL tri-state.
Next is about absolute maximum ratings.(1):VCC is from -0.3 to 6 V;(2):input voltages is from -0.3V to 0.3 V for T_IN and ±30 V for R_IN;(3):output voltages is from -0.3 to 0.3 V for both T_OUT and R_OUT;(4):storage temperature ranges from -65 to +165;(5):short-circuit duration for T_OUT continuous;(6):the typical supply current is 14 mA and the maximum is 20 mA at the condition of no load, TA is 25;(7):the typical shutdown supply current is 15 A and the maximum is 50 A when TA is 25;(8):output voltage low is 0.4 V at IOUT is 1.6mA;(9):input threshold low (VIL) is 0.8 V;(10):input threshold high (VIH) is 2.4 V;(11):output-voltage low(VOL) is 0.4 V;(12):output-voltage high(VOH) is 3.5*VCC-0.4.