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MAX3243ECAI

Name: MAX3243ECAI
Rating: 4.7 (12 reviews)

IC TRANSCEIVER FULL 3/5 28SSOP

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製造商。部分 #MAX3243ECAI
包 SSOP-28
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規格

Package	Tube,Tube
ProductStatus	Obsolete
Type	Transceiver
Protocol	RS232
NumberofDrivers/Receivers	3/5
Duplex	Full
ReceiverHysteresis	500 mV
DataRate	250kbps
Voltage-Supply	3V ~ 5.5V
OperatingTemperature	0°C ~ 70°C
MountingType	Surface Mount
Package/Case	28-SSOP (0.209, 5.30mm Width)

概述

Description

MAX3243ECAI is Maxim’s quad RS-232 transceiver. It provides two RS-232 drivers and two RS-232 receivers, letting two UARTs talk to RS-232 devices. The device translates TTL/CMOS logic levels to RS-232 voltage levels (and back) from a single supply (typically 3.0–5.5 V) and uses an external charge-pump capacitor network to generate the RS-232 voltages (about ±6 V). It supports UART data rates up to roughly 1 Mbps per channel and is designed for low power operation. External capacitors (often 0.1 μF) are required for the charge pump. Applications include microcontroller UART interfaces to PCs, modems, and serial peripherals. The “ECAI” suffix denotes the device’s packaging and temperature grade (industrial/commercial variants) in the available package options.

Features

MAX3243ECAI is a quad RS-232 transceiver. Key features:
- 4 drivers + 4 receivers (quad RS-232 transceiver)
- Single-supply operation: 3.0V to 5.5V
- External charge-pump capacitors (typical four 0.1 µF) for RS-232 voltage generation
- TTL/CMOS-compatible input thresholds; RS-232-level outputs
- Supports standard RS-232 data rates (up to about 1 Mbps range, depending on conditions)
- ESD and short-circuit protection on I/O lines
- Suitable for commercial/industrial temperature ranges (as packaged in CAI)
Note: exact voltage swing, current, and speed specs depend on the specific device revision and conditions; consult the datasheet for precise values.

Package

16-pin TSSOP (SSOP) package.

Pinout

- Pin count: 28 pins (28-pin package, e.g., TQFP/SSOP)
- Function: Quad RS-232 transceiver (four drivers and four receivers) that interfaces between TTL/CMOS logic (TIN/RIN/ROUT/TOUT) and RS-232 signals. Uses an internal charge pump with external capacitors to generate the ± voltages; operates from 3.0–5.5 V.

Manufacturer

Manufacturer: Maxim Integrated Products (now part of Analog Devices, Inc.).
What kind of company: A fabless semiconductor company that designs and markets analog and mixed-signal integrated circuits (now under Analog Devices).

Application

MAX3243ECAI is a triple-driver, quadruple-receiver RS-232 transceiver. Applications include:
- Embedded systems needing RS-232 to PC/modem/printer/PLC connections
- Multi-port serial interfaces in industrial control and data-logging/telemetry systems
- Point-of-sale terminals and other industrial controllers
- Console/diagnostic ports in networking gear
- USB-to-RS-232 adapters and other serial communication interfaces
Concise, field-ready RS-232 level shifting for microcontroller to RS-232 devices.

Equivalent

Equivalent products (quad RS-232 transceivers) to MAX3243ECAI include:
- Analog Devices: ADM3243 (ADM324x family)
- STMicroelectronics: ST3232 / ST232 family
- Texas Instruments: SN75C324x / SN65C324x family
- Exar: SP3232 / SP324x (quad RS-232)
Notes: ensure pinout compatibility and same supply range (roughly 3.0–5.5 V) and packaging.