(China (Mainland))
Product Summary
The max3221cdbr is a line driver. The device meets the requirements of TIA/EIA-232-F and provides the electrical interface between an asynchronous communication controller and the serial-port connector. The charge pump and four small external capacitors allow operation from a single 3-V to 5.5-V supply. The max3221cdbr operates at data signaling rates up to 250 kbit/s and a maximum of 30V/µs driver output slew rate.
Parametrics
max3221cdbr absolute maximum ratings: (1)Supply voltage range, VCC (see Note 1): -0.3 V to 6 V; (2)Positive output supply voltage range, V+ (see Note 1) -0.3 V to 7 V; (3)Negative output supply voltage range, V-(see Note 1) 0.3 V to -7 V; (4)Supply voltage difference, V+-V- (see Note 1):13 V; (5)Input voltage range, V:Driver (FORCEOFF, FORCEON, EN) -0.3 V to 6 V;Receiver ?25 V to 25 V; (6)Output voltage range, VO: Driver -13.2 V to 13.2 V;Receiver (INVALID): -0.3 V to VCC + 0.3 V; (7)Package thermal impedance, θJA (see Notes 2 and 3): DB package 82℃/W; (8)PW package:108℃/W; (9)Operating virtual junction temperature, TJ; 150℃; (10)Storage temperature range, Tstg :-65℃ to 150℃.
Features
max3221cdbr features:(1) RS-232 Bus-Pin ESD Protection Exceeds ±15 kV Using Human-Body Model (HBM); (2)Meets or Exceeds the Requirements of TIA/EIA-232-F and ITU v.28 Standards; (3)Operates With 3-V to 5.5-V VCC Supply; (4)Operates Up To 250 kbit/s; (5)One Driver and One Receiver; (6)Low Standby Current: 1 μA Typical; (7)External Capacitors: 4 × 0.1 μF; (8)Accepts 5-V Logic Input With 3.3-V Supply; (9)Alternative High-Speed Pin-Compatible Device (1 Mbit/s) -SNx5C3221; (10)Auto-Powerdown Feature Automatically Disables Drivers for Power Saving.
Diagrams
| Image | Part No | Mfg | Description |  |
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 MAX3221CDBR |
Texas Instruments |
Buffers & Line Drivers 1-Channel RS-232 |
Data Sheet |
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MAX3221CDBRG4 |
Texas Instruments |
Buffers & Line Drivers 3-5.5V Single-Ch Line Drvr/Rcvr |
Data Sheet |
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