Product Summary

The MAX3243 is a 1μA Supply-Current, True +3V to +5.5V RS-232 Transceiver with AutoShutdown. The MAX3243 achieves 1μA supply current with Maxim revolutionary AutoShutdown feature. When the MAX3243 does not sense a valid signal level on its receiver inputs, the on-board power supply and drivers shut down. This occurs if the RS-232 cable is disconnected or if the transmitters of the connected peripheral are turned off. The applications of the MAX3243 include Notebook, Subnotebook, and Palmtop Computers, Battery-Powered Equipment, Hand-Held Equipment, Peripherals and Printers.

Parametrics

MAX3243 absolute maximum ratings: (1)VCC: -0.3V to +6V; (2)V+: -0.3V to +7V; (3)V-: +0.3V to -7V; (4)V+ + |V-|: +13V; (5)Input Voltages, R_IN: ±25V; (6)Output Voltages, T_OUT: ±13.2V; (7)R_OUT, INVALID: .-0.3V to (VCC + 0.3V); (8)Short-Circuit Duration, T_OUT: Continuous; (9)Continuous Power Dissipation: 571mW; (10)Operating Temperature Ranges: 0 to +70℃; (11)Storage Temperature Range: -65 to +150℃; (12)Lead Temperature (soldering, 10s): +300℃.

Features

MAX3243 features: (1)For Space-Constrained Applications: +2.5V to +5.5V RS-232 Transceivers in UCSP; (2)For Integrated ESD Protection: ±15kV ESD-Protected, Down to 10nA, 3.0V to 5.5V, Up to 1Mbps, True RS-232; (3)Transceivers; (4)For Low-Voltage or Data Cable Applications: +2.5V to +5.5V, 1μA, 2 Tx/2 Rx RS-232 Transceivers with ±15kV ESD-Protected I/O and Logic Pi.

Diagrams

MAX3243 diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
MAX3243CAI
MAX3243CAI

Maxim Integrated Products

RS-232 Interface IC

Data Sheet

Negotiable 
MAX3243CAI+
MAX3243CAI+

Maxim Integrated Products

RS-232 Interface IC 3-5.5V 250kbps Transceiver

Data Sheet

0-1: $5.27
1-25: $3.51
25-50: $2.55
50-100: $2.51
MAX3243CAI+T
MAX3243CAI+T

Maxim Integrated Products

RS-232 Interface IC 3-5.5V 250kbps Transceiver

Data Sheet

0-1665: $2.17
1665-2000: $2.17
MAX3243CAI-C78088
MAX3243CAI-C78088

Maxim Integrated Products

RS-232 Interface IC

Data Sheet

Negotiable 
MAX3243CAI-T
MAX3243CAI-T

Maxim Integrated Products

RS-232 Interface IC

Data Sheet

Negotiable 
MAX3243CDB
MAX3243CDB

Texas Instruments

RS-232 Interface IC 3-5.5V MultiCh Line Driver/Receiver

Data Sheet

0-1: $1.36
1-25: $1.20
25-100: $0.95
100-250: $0.90
MAX3243CDBE4
MAX3243CDBE4

Texas Instruments

RS-232 Interface IC 3-5.5V MultiCh Line Driver/Receiver

Data Sheet

0-1: $1.26
1-25: $1.01
25-100: $0.92
100-250: $0.83
MAX3243CDBR
MAX3243CDBR

Texas Instruments

RS-232 Interface IC RS232

Data Sheet

0-1: $0.97
1-25: $0.74
25-100: $0.67
100-250: $0.60