CX81801-32

$3.93

Description：MODEM, CMOS, PQFP128
Series：-

SKU:7079e3b9740d Category: Modems - ICs and Modules Brand: Conexant

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Product introduction

Product Detailed Parameters

Description：MODEM, CMOS, PQFP128
Series：-
Mfr：Conexant
Package：Bulk
Data Format：V.21, V.22, V.22B, V.23, V.32, V.32B, V.34, V.90, Bell 103, Bell 212
Baud Rates：56k
Voltage - Supply：3V ~ 3.6V
Mounting Type：Surface Mount
Package / Case：28-VFCLGA
Supplier Device Package：28-CTLGA (11x6.4)

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CX81801-32

Overview

The Conexant CX81801-32 is a CMOS-based SmartV.XX modem integrated circuit designed for worldwide telecommunications applications. It features a full-featured, controller-based architecture that combines a modem controller (MCU) and a modem data pump (MDP). The device supports baud rates of 56k and operates on a supply voltage range of 3V to 3.6V. It is housed in a 128-pin TQFP package with surface mount mounting type. The component has a typical moisture sensitivity level of 3.

Feature Summary

Integrates a dedicated modem controller and data pump within a single CMOS chip
Supports global voiceband modem standards for worldwide compatibility
Allows optional connection to external serial EEPROM via a dedicated interface

Applications

Integrated modems for desktop computers
Modem solutions for laptop computers
Communication modules for network equipment

Procurement Notes

Verify the specific suffix against official datasheets to confirm package type and moisture sensitivity level. Ensure the source document explicitly identifies the part as the 128-pin TQFP variant. Cross-reference manufacturer part numbers with distributor listings to confirm availability and authenticity before procurement.

Selection Notes

Select this component when a complete, controller-based modem solution is required for voiceband communication. Consider the 128-pin TQFP package constraints for PCB layout. Verify power supply requirements align with the 3V to 3.6V operating range. Evaluate integration needs for external memory if configuration storage is necessary.

Part Context

This part belongs to the Conexant SmartV.XX family of modems. These devices are designed to replace discrete modem components by integrating control logic and signal processing. The family includes various package options and suffixes tailored for different form factors and manufacturing requirements.

Replacement Considerations

Consult official substitution lists for equivalent modem ICs. Verify pinout compatibility and electrical specifications before replacing. Check for updated versions within the same product family.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.