Full Duplex MAX3232CD RS-232 Interface IC Transceiver

1 Features

• RS-232 Bus-terminal esd protection exceeds ±15 kV using human-body model (HBM)
• Meets or exceeds the requirements of TIA/ EIA-232-F and ITU V.28 standards
• Operates with 3-V to 5.5-V VCC supply
• Operates up to 250 kbit/s
• Two drivers and two receivers • Low supply current: 300 μA Typical
• External capacitors: 4 × 0.1 μF
• Accepts 5-V logic input with 3.3-V supply
• Alternative high-speed terminal-compatible devices (1 Mbit/s) – SN65C3232 (–40°C to 85°C) – SN75C3232 (0°C to 70°C)

2 Applications

• Industrial PCs
• Wired networking
• Data center and enterprise networking
• Battery-powered systems
• PDAs
• Notebooks
• Laptops
• Palmtop PCs
• Hand-held equipment

3 Description

The MAX3232 device consists of two line drivers, two line receivers, and a dual charge-pump circuit with ±15-kV ESD protection terminal to terminal (serial-port connection terminals, including GND). 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 devices operate at data signaling rates up to 250 kbit/s and a maximum of 30-V/μs driver output slew rate.
Feature Description Power The power block increases, inverts, and regulates voltage at V+ and V- pins using a charge pump that requires four external capacitors. RS232 Driver Two drivers interface standard logic level to RS232 levels. Both DIN inputs must be valid high or low. RS232 Receiver Two receivers interface RS232 levels to standard logic levels. An open input will result in a high output on ROUT. Each RIN input includes an internal standard RS232 load.
Application Information For proper operation, add capacitors as shown in Typical Operating Circuit and Capacitor Values. Standard Application ROUT and DIN connect to UART or general purpose logic lines. RIN and DOUT lines connect to a RS232 connector or cable.
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Product name:MAX3232CD
Manufacturer: Texas Instruments	Product Category: RS-232 Interface IC
Installation style: SMD/SMT	Package / Case: SOIC-Narrow-16
Series: MAX3232	Function: Transceiver
Data rate: 250 kb/s	Number of Exciters: 2 Driver
Number of receivers: 2 Receiver	Duplex: Full Duplex
Operating supply voltage: 3.3 V, 5 V
Operating supply current: 1 mA	Minimum operating temperature: - 40 C
Maximum operating temperature: + 85 C	ESD Protection: 15kV
Package: Tube	Product Type: RS-232 Interface IC
Factory Packing Quantity: 320	Power Type: Single Supply
Supply Voltage - Maximum: 5.5 V	Supply Voltage - Min: 3 V