CX81801-33 Overview
PCBs can be mounted on Surface Mount.Low package costs are a common feature of the 128-QFP.Normal operation requires 3.3V Supply Voltage.The Supplier Device Package is 128-LFQFP.
CX81801-33 Features
128-QFP package

CX81801-33 Applications
There are a lot of Rochester Electronics, LLC
CX81801-33 Modems ICs & Modules applications.

Cell phones
Wireless modems
Remote controls
Wireless network systems
Satellite communications networks
Ethernet circuitry
Wired telephone
Cordless telephone
Desktop PC
Notebook

Mounting Type	Surface Mount
Package / Case	128-QFP
Supplier Device Package	128-LFQFP
Part Status	Obsolete
Voltage - Supply	3.3V
Data Format	V.21, V.22, V.22B, V.23, V.32, V.32B, V.34, V.90, Bell 103, Bell 212
RoHS Status	ROHS3 Compliant