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MAX253CUA+

Name: MAX253CUA+
Rating: 4.7 (12 reviews)

IC XFRMR DRIVER RS485 8-UMAX

製造商
製造商。部分 #MAX253CUA+
包 8-TSSOP
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規格

Package	Tube
ProductStatus	Active
Applications	Transformer Driver
Current-Supply	450µA
Voltage-Supply	3.3V, 5V
OperatingTemperature	0°C ~ 70°C
MountingType	Surface Mount
Package/Case	8-TSSOP, 8-MSOP (0.118, 3.00mm Width)

概述

Description

MAX253CUA+ is a Maxim Integrated dual RS-232 transceiver. It provides two drivers and two receivers to connect a microcontroller’s UART to RS-232 devices (PCs, modems, GPS, etc.).
Key points
- Single-supply operation from about 3.0 to 5.5 V.
- Uses a charge-pump to generate RS-232 voltage levels from the logic supply.
- TTL/CMOS-compatible logic inputs and RS-232-level outputs; supports two independent TX/RX channels.
- Features typically include enable/shutdown control and standard UART data-rate support (high enough for common serial speeds; check datasheet for exact limits).
- Available in small packaging (e.g., 8-pin small-outline variants) and RoHS-compliant options.
Usage
- Ideal for MCU-to-RS-232 bridging in embedded systems and serial peripherals.
Note
- For exact electrical specs, capacitor needs for the charge pump, pinout, and maximum data rate, consult the current MAX253CUA+ datasheet and package variant.

Package

MAX253CUA+ is available in an 8-pin SOIC (Small-Outline) package; it’s the RoHS lead-free variant.

Pinout

- Pin count: 16 pins (16-pin package such as SOIC/TSSOP).
- Function: Dual RS-232 transceiver (two drivers and two receivers) with an onboard charge-pump voltage converter; interfaces TTL/CMOS logic to RS-232 levels and requires external capacitors to generate ± voltages; single-supply operation (typically 3V–5.5V).

Manufacturer

MAX253CUA+ is made by Maxim Integrated Products, Inc., a semiconductor company that designs and sells analog and mixed-signal integrated circuits (Maxim is now part of Analog Devices).

Application

RS-232 transceiver for MCU-to-RS-232 serial interfaces. Applications include:
- PC/modem/serial printer connections
- Data acquisition systems
- Industrial controllers/PLCs
- Instrumentation and test equipment
- Point-of-sale terminals
- Telecom peripherals

Equivalent

MAX253CUA+ is a dual RS-232 transceiver with charge-pump. Common equivalents:
- Analog Devices: ADM232 / ADM232A
- Renesas/Intersil: ISL232x
- Exar: SP3232E (pin-compatible RS-232 transceiver)
- STMicroelectronics: ST232 / ST3232
- Maxim: MAX3222 / MAX3232 (drop-in style with similar specs)
Note: verify pinout and voltage range for your design.