Product Summary

The MAX3232I is a multichannel RS-232 line driver/receiver with -15-kV ESD protection. The MAX3232I consists of two line drivers, two line receivers, and a dual charge-pump circuit with ±15-kV ESD protection pin to pin (serial-port connection pins, including GND). The MAX3232I 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 MAX3232I operates at data signaling rates up to 250 kbit/s and a maximum of 30-V/μs driver output slew rate.

Parametrics

MAX3232I absolute maximum ratings: (1)Supply voltage range, VCC: -0.3 V to 6 V; (2)Positive output supply voltage range, V+: -0.3 V to 7 V; (3)Negative output supply voltage range, V-: -0.3 V to -7 V; (4)Supply voltage difference, V+ - V-: 13 V; (5)Input voltage range, VI: Drivers: -0.3 V to 6 V; (6)Receivers: -25 V to 25 V; (7)Output voltage range, VO: Drivers: -2 V to 13.2 V; (8)Receivers: -0.3 V to VCC + 0.3 V; (9)Package thermal impedance, θJA: D package 73℃/W, DB package 82℃/W, DW package 57℃/W, PW package 108℃/W; (10)Operating virtual junction temperature, TJ: -150℃; (11)Storage temperature range, Tstg: -65℃ to 150℃.

Features

MAX3232I 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)Two Drivers and Two Receivers; (6)Low Supply Current . 300 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).

Diagrams

MAX3232I pin connection

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
MAX3232ICAE-T
MAX3232ICAE-T

Maxim Integrated Products

RS-232 Interface IC

Data Sheet

Negotiable 
MAX3232IDB
MAX3232IDB

Texas Instruments

Buffers & Line Drivers 3-5.5V Multichannel Line Drvr/Rcvr

Data Sheet

0-1: $1.66
1-25: $1.28
25-100: $1.16
100-250: $0.84
MAX3232IDBE4
MAX3232IDBE4

Texas Instruments

RS-232 Interface IC 3-5.5V Multichannel Line Drvr/Rcvr

Data Sheet

0-1: $1.66
1-25: $1.28
25-100: $1.16
100-250: $0.84
MAX3232IDBR
MAX3232IDBR

Texas Instruments

Buffers & Line Drivers 3-5.5V Mult-Ch RS232

Data Sheet

0-1: $1.18
1-25: $0.91
25-100: $0.82
100-250: $0.74
MAX3232IDBRE4
MAX3232IDBRE4

Texas Instruments

Buffers & Line Drivers 3-5.5V Multichannel Line Drvr/Rcvr

Data Sheet

0-1430: $0.59
1430-2000: $0.56
2000-5000: $0.54
5000-10000: $0.52
MAX3232IDBRG4
MAX3232IDBRG4

Texas Instruments

RS-232 Interface IC 3-5.5V Multich RS- 232 Line Drvr/Rcvr

Data Sheet

0-1430: $0.59
1430-2000: $0.56
2000-5000: $0.54
5000-10000: $0.52
MAX3232IDE4
MAX3232IDE4

Texas Instruments

RS-232 Interface IC 3-5.5V Multichannel Line Drvr/Rcvr

Data Sheet

0-1: $1.66
1-25: $1.28
25-100: $1.16
100-250: $0.96
MAX3232IDG4
MAX3232IDG4

Texas Instruments

RS-232 Interface IC 3-5.5V Multich RS- 232 Line Drvr/Rcvr

Data Sheet

0-1: $1.34
1-25: $1.08
25-100: $0.98
100-250: $0.89