RS-232

MAX3232ESE Datasheet – RS-232 Transceiver Interface IC

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Part Number: MAX3232ESE

Function: 3.0V to 5.5V, Low-Power, up to 1Mbps, True RS-232 Transceiver

Package: 16 Narrow SO

Manufacturer: Maxim Integrated

Images:

MAX3232ESE datasheet

 

Description

The MAX3222 / MAX3232 / MAX3237 / MAX3241 transceivers have a proprietary low-dropout transmitter output stage enabling true RS-232 performance from a 3.0V to 5.5V supply with a dual charge pump. The devices require only four small 0.1μF external charge-pump capacitors. The MAX3222, MAX3232, and MAX3241 are guaranteed to run at data rates of 120kbps while maintaining RS-232 output levels. The MAX3237 is guaranteed to run at data rates of 250kbps in normal operating mode and 1Mbps in the MegaBaud™ operating mode.

Pinout

MAX3232ESE pinout

Applications

1. Battery-Powered Equipment
2. Hand-Held Equipment
3. Peripherals
4. Datacom Equipment

Other data sheets are available within the file:

MAX3222C/D, MAX3222EAP, MAX3222EPN ,MAX3222EUP ,MAX3222EWN

MAX3232ESE Datasheet PDF Download


MAX3232ESE pdf

 

ADM232AAN Datasheet – CMOS RS-232 Drivers/Receivers – AD

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Part Number: ADM232AAN

Function: High-Speed, 5 V, 0.1 uF CMOS RS-232 Drivers/Receivers

Package : 16Pin DIP type

Manufacturer: Analog Devices

Image :

ADM232AAN-RS-232-Driver-Receiver

Description

The ADM222/ADM232A/ADM242 are high-speed RS-232 drivers/receivers requiring a single digital 5 V supply. The RS-232 standard requires transmitters that will deliver ±5 V minimum on the transmission channel and receivers that can accept signal levels down to ±3 V. The parts achieve this by integrating stepup voltage converters and level-shifting transmitters and receivers onto the same chip. CMOS technology is used to keep the power dissipation to an absolute minimum. All devices contain an internal charge pump voltage doubler and a voltage inverter that generates ± 10 V from the 5 V input. Four external 0.1 μF capacitors are required for the internal charge pump voltage converter.

Pinout
ADM232AAN-datasheet-pinout

Charge Pump DC-DC Voltage Converter

The Charge Pump Voltage converter consists of an oscillator and a switching matrix. The converter generates a ±10 V supply from the input 5 V level. This is done in two stages using a switched capacitor technique. The 5 V input supply is doubled to 10 V using capacitor C1 as the charge storage element. The –10 V level is also generated from the input 5 V supply using C1 and C2 as the storage elements.

Features

1. 200 kB/s Transmission Rate
2. Small (0.1 F) Charge Pump Capacitors
3. Single 5 V Power Supply
4. Meets All EIA-232-E and V.28 Specifications
5. Two Drivers and Two Receivers
6. On-Board DC-DC Converters

Applications

1. Computers
2. Peripherals
3. Modems
4. Printers
5. Instruments

 

ADM232AAN PDF Datasheet Download