ADM3222ARU

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ADM3222ARU

IC TRANSCEIVER FULL 2/2 20TSSOP

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規格

Supplier Analog Devices Inc.,Rochester Electronics, LLC
Package Tube,Tube
ProductStatus Obsolete
Type Transceiver
Protocol RS232
NumberofDrivers/Receivers 2/2
Duplex Full
ReceiverHysteresis 400 mV
DataRate 460Kbps
Voltage-Supply 3V ~ 5.5V
OperatingTemperature -40°C ~ 85°C
MountingType Surface Mount
Package/Case 20-TSSOP (0.173, 4.40mm Width)

概述

Description

ADM3222ARU is Analog Devices’ dual RS-232 transceiver. It provides two RS-232 drivers and two receivers, enabling reliable, low-power serial communication between a microcontroller (TTL/CMOS logic) and RS-232 devices. It runs from a single supply (typ. 3.0–5.5 V) and uses an on-chip charge pump to generate RS-232 levels from that supply. Input thresholds are TTL/CMOS compatible; includes ESD protection. External charge-pump capacitors are required. Typical applications include UART serial interfaces for PCs/modems, embedded controllers, and data acquisition systems. The ARU suffix denotes packaging/tape‑and‑reel variant. For exact specs (data rate, voltages, pinout, capacitor values) see the ADM3222ARU datasheet.

Features

ADM3222ARU features (concise):
- Dual RS-232 transceiver: two drivers and two receivers (2-channel)
- Single-supply operation from 3.0 V to 5.5 V
- On-chip charge pump to generate RS-232 voltages; external capacitors required (typ. 0.1 µF)
- Up to ~1 Mbps data rate per channel; full-duplex capability
- TTL/CMOS-compatible inputs; RS-232 outputs
- Low quiescent current with shutdown mode for power saving
- ESD protection on RS-232 lines
- 8-pin package; RoHS-compliant; ARU indicates tape-and-reel packaging option

Package

ADM3222ARU comes in an 8-pin plastic SOIC package (8-SOIC).

Pinout

- Pin count: 16 pins (16-pin package).
- Function: Dual RS-232 transceiver (two drivers and two receivers). Converts TTL/CMOS logic levels to RS-232 voltage levels and RS-232 levels back to logic, using an on-chip charge pump to generate RS-232 ± voltages.

Manufacturer

Manufacturer: Analog Devices, Inc. (ADI).
What kind of company: A global semiconductor company that designs and manufactures analog, mixed-signal, and signal-processing integrated circuits (ICs), including data converters, amplifiers, interfaces, and sensors.

Application

- Dual-channel RS-232 transceiver (two drivers, two receivers)
- Interfaces microcontrollers/embedded systems to PCs, modems, and terminals
- Embedded systems, data acquisition, instrumentation
- Industrial automation and process-control equipment
- Networking/telecom gear with RS-232 console ports
- Point-of-sale, test, and medical equipment requiring reliable RS-232 signaling

Equivalent

Equivalent products to ADM3222ARU (2-channel RS-232 transceiver) include:
- MAX3222 / MAX3232 (Maxim) – dual RS-232 transceivers with charge pumps; 3.0–5.5 V operation
- SP3232 / SP3232E (Exar/Sipex) – dual RS-232 transceivers; 3.0–5.5 V
- ST3232 (STMicroelectronics) – dual RS-232 transceiver; 3.3/5 V variants
Note: pinouts/footprints differ; verify package and voltage for your board.

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