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MAX3225EEAP

Name: MAX3225EEAP
Rating: 4.7 (12 reviews)

RS-232 TRANSCEIVERS

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製造商。部分 #MAX3225EEAP
包 SSOP20
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規格

Package	Bulk
ProductStatus	Obsolete

概述

Description

- The MAX3225EEAP is a Maxim/Analog Devices RS-232 transceiver (part of the MAX3225 family).
- It provides two RS-232 drivers and two RS-232 receivers, enabling a microcontroller or logic IC to talk to RS-232 devices (e.g., PCs, modems).
- It converts TTL/CMOS logic levels to RS-232 voltage levels (and back) using an on-board charge pump.
- Operates from a single supply (typically 3.0–5.5 V) and requires external charge-pump capacitors (often 0.1 µF per cap).
- Supports standard RS-232 signaling, suitable for typical serial data rates and embedded applications.
- The EEAP suffix indicates a specific packaging/temperature variant in Maxim’s catalog; check the datasheet for exact pinout, voltage, speed, and package details.
- Common uses: MCU-to-PC serial ports, embedded systems, telecom/diagnostic interfaces.
Note: For exact electrical specs, pinout, package, and cap values, consult the MAX3225EEAP datasheet.

Features

Concise features of MAX3225EEAP:
- Dual RS-232 transceiver: two drivers and two receivers for full-duplex links
- Operation from 3.3V to 5.5V supply (logic-compatible with TTL/CMOS)
- Uses charge-pump with four 0.1µF external capacitors to generate RS-232 levels
- RS-232 output levels typically ±6V to ±9V; TTL/CMOS input thresholds
- Data rates up to about 1 Mbps
- Low quiescent current and power-saving operation
- 8-pin package (EEAP) with robust ESD protection on RS-232 lines
Note: Always refer to the official datasheet for exact electrical specs and package details.

Package

MAX3225EEAP is in a 20-pin TSSOP package (TSSOP-20, typically with an exposed pad).

Pinout

Pin count: 16-pin package (SSOP/TSSOP commonly).
Function: Dual RS-232 transceiver (two drivers and two receivers). Converts TTL/CMOS inputs to RS-232 levels and RS-232 inputs to TTL/CMOS outputs. Uses a charge-pump to generate RS-232 voltages and requires four external capacitors (C1+, C1-, C2+, C2-). Operating supply typically 3.0–5.5 V.

Manufacturer

- Manufacturer: Analog Devices, Inc. (the company that now includes the former Maxim Integrated brand).
- Company type: A global semiconductor company specializing in analog, mixed-signal, and high-performance interface ICs (e.g., RS-232 transceivers).

Application

MAX3225EEAP is a quad RS-232 transceiver (UART to RS-232 level conversion). Applications include:
- Embedded systems and microcontroller boards interfacing to PCs, modems, routers, and serial printers
- Industrial controllers and PLCs, automation equipment
- Point-of-sale terminals
- Data acquisition, telemetry, and instrumentation
- Any low-power RS-232 interface in 2.7–5.5V systems
Concise: TTL/CMOS to RS-232 conversion for serial communication in embedded and industrial environments.

Equivalent

MAX3225EEAP is a 2-driver/2-receiver RS-232 transceiver with a charge pump. Equivalent devices from other vendors include:
- Exar SP3232 (SP3232E)
- STMicroelectronics ST3232 (ST232)
- Analog Devices ADM232 / ADM3232
Note: verify pinout, supply voltage (5V vs 3.3V), and drive/baud specs for true cross-compatibility.