Datasheet MAX220-MAX249 (Maxim) - 6

MAX220–MAX249 +5V-Powered, Multichannel RS-232 Drivers/Receivers
Electrical Characteristics—MAX223/MAX230–MAX241 (continued)
(MAX223/230/232/234/236/237/238/240/241, VCC = +5V ±10%; MAX233/MAX235, VCC = +5V ±5%‚ C1–C4 = 1.0µF; MAX231/MAX239, VCC = +5V ±10%; V+ = +7.5V to +13.2V; TA = TMIN to TMAX; unless otherwise noted.) (Note 5)
PARAMETER CONDITIONS MIN TYP MAX UNITS
Normal operation VSHDN = +5V (MAX223) 0.8 1.2 T VSHDN = 0V (MAX235/236/240/241) RS-232 Input Logic-Low Voltage A = +25°C, V VCC = +5V Shutdown (MAX223) VSHDN = 0V, 0.6 1.5 VEN = +5V (R4IN, R5IN) Normal operation VSHDN = 5V (MAX223) 1.7 2.4 VSHDN = 0V (MAX235/236/240/241) T RS-232 Input Logic-High Voltage A = +25°C, V VCC = +5V Shutdown (MAX223) VSHDN = 0V, 1.5 2.4 VEN = +5V (R4IN‚ R5IN) RS-232 Input Hysteresis VCC = +5V, no hysteresis in shutdown 0.2 0.5 1.0 V RS-232 Input Resistance TA = +25°C, VCC = +5V 3 5 7 kΩ TTL/CMOS Output Voltage Low IOUT = 1.6mA (MAX231/232/233, IOUT = 3.2mA) 0.4 V TTL/CMOS Output Voltage High IOUT = -1mA 3.5 VCC - 0.4 V 0V ≤ R TTL/CMOS Output Leakage Current OUT ≤ VCC; VEN = 0V (MAX223); ±0.05 ±10 µA VEN = VCC (MAX235–241) MAX223 600 Normal Receiver Output Enable Time ns operation MAX235/236/239/240/241 400 MAX223 900 Normal Receiver Output Disable Time ns operation MAX235/236/239/240/241 250 Normal operation 0.5 10 RS-232 IN to Propagation Delay TTL/CMOS OUT, tPHLS 4 40 µs VSHDN = 0V CL = 150pF (MAX223) tPLHS 6 40 MAX223/MAX230/MAX234–241, TA = +25°C, VCC = +5V, RL = 3kΩ to 7kΩ‚ CL = 50pF to 2500pF, measured from 3 5.1 30 +3V to -3V or -3V to +3V Transition Region Slew Rate V/µs MAX231/MAX232/MAX233, TA = +25°C, VCC = +5V, RL = 3kΩ to 7kΩ, CL = 50pF to 2500pF, measured from 4 30 +3V to -3V or -3V to +3V Transmitter Output Resistance VCC = V+ = V- = 0V, VOUT = ±2V 300 Ω Transmitter Output Short-Circuit ±10 mA Current mA
Note 5:
All units are production tested at hot except for the MAX240, which is production tested at TA = +25°C. Specifications over temperature are guaranteed by design. www.maximintegrated.com Maxim Integrated | 6