RC224ATL

Product Summary

The RC224ATL is a combination V.22 bis data and Group 3 fax CMOS modem in a single VLSI package. The RC224ATL integrated data/fax modem is available in either a 68-pin plastic leaded chip carrier (PLCC) or a 100-pin plastic quad flat pack (PQFP). The RC224ATL has a selectable parallel or serial interface to the host data terminal equipment (DTE). When parallel mode is selected, a 16C450-compatible interface allows direct connection to a notebook, laptop, or PC-compatible bus without an external universal asynchronous receive/transmit (UART).

Parametrics

RC224ATL absolute maximum ratings: (1)Supply Voltage:-0.5V to + 7.0V; (2)Input Voltage:-0.5V to VCC + 0.5V; (3)Analog Inputs:-0.3V to + 5 VAA+0.3V; (4)Voltage Applied to Outputs in High Z State:-0.5 to + 5 VDD+0.5V; (5)DC Input Clamp Current:20mA; (6)DC Output Clamp Current:20mA; (7)Static Discharge Voltage (@ 25℃):3000V; (8)Latch-Up Current (@ 25℃):200mA; (9)Operating Temperature Range:0℃ to + 70℃; (10)Storage Temperature Range:-40℃ to + 80℃.

Features

RC224ATL features: (1)EIA-578 Service Class 1 commands; (2)V.42/MNP2-4 and V.42 bis/MNP 5 can be supported through host software without additional hardware; (3)Data/fax discriminator and auto answering; (4)Communications software compatible; (5)Integrated call progress and dialing; (6)No external microcomputer or memory required; (7)Parallel or serial asynchronous DTE interface; (8)A/A1 relay control; (9)NVRAM interface allows storage of two user configurations and four 36-digit dial strings; (10)Automatic adaptive/fixed compromise equalization; (11)Programmable sleep mode and wake-up; (12)Full-duplex data mode test capabilities: Analog loop, local digital loop, and remote digital loop; (13)Half-duplex fax mode test capabilities; (14)Automatic format/speed sensing; (15)Low power consumption (typical):Operating: 100 mW,Sleep-Idle: 25 mW,Sleep-Stop: 5 mW; (16)Single +5 V power supply or Dual + 3.3 VDD and + 5 VAA power supplies; (17)Package options:68-pin plastic leaded chip carrier(PLCC),100-pin plastic quad flat pack (PQFP); (18)Data modes:CCITT V.22 bis (2400 bps), V.22 (1200 bps),Bell 212A(1200 bps) and 103 (300 bps),Enhanced AT commands; (19)Group 3 fax modes:V.29 (9600/7200 bps) transmit,V.27 ter(4800/2400 bps) transmit and receive,V.21 Channel 2 (300 bps)transmit and receive.

Diagrams