Product Summary

The CX81801-84 is a full-featured, worldwide, controller-based modem that integrates modem controller (MCU), modem data pump (MDP), 256 KB ROM, 32 KB RAM, and SmartDAA system side device (SSD) functions onto a single die. The CX81801-84 consists of a CX81801 modem device in a 128-pin TQFP and a CX20493 SmartDAA Line Side Device (LSD) in a 28-pin QFN. The applications of the CX81801-84 include Set top boxes, Gaming devices, Point of sale terminals, Remote monitoring and data collections systems, Handheld computers and Other embedded systems.

Parametrics

CX81801-84 absolute maximum ratings: (1)Supply Voltage, VDD: -0.5 to +4.0 VDC; (2)Input Voltage, VIN: -0.5 to + (VGG + 0.5) VDC; (3)Storage Temperature Range, TSTG: -55 to +125℃; (4)Analog Inputs, VIN: -0.3 to (VAA + 0.5) VDC; (5)Voltage Applied to Outputs in High Impedance (Off) State, VHZ: -0.5 to + (VGG + 0.5) VDC; (6)DC Input Clamp Current, IIK: ±20 mA; (7)DC Output Clamp Current, IOK: ±20 mA; (8)Static Discharge Voltage (25℃), VESD: ±2500 VDC; (9)Latch-up Current (25℃), ITRIG: ±400 mA.

Features

CX81801-84 features: (1)V.80 synchronous access mode supports host-controlled communication protocols with H.324 interface support; (2)Interfaces to optional external ROM/flash ROM, RAM, and/or optional serial EEPROM; (3)Data/Fax/Voice call discrimination; (4)Hardware-based modem controller; (5)Hardware-based digital signal processor (DSP); (6)Worldwide operation; (7)Distinctive ring detect; (8)Modem customization available through patch code that can be stored in optional serial EEPROM or internal SRAM; (9)Telephony/TAM.

Diagrams

CX81801-84 simplified interface diagram

CX81801
CX81801

Other


Data Sheet

Negotiable