Description

The RC223DP is an electronic component belonging to the IC chips category. It is a new Conexant RC224ATL device that utilizes a new integrated data pump/controller to allow the device to directly connect to host processors that are 3.3 V I/O capable. This device is identical in form, fit, and function to the existing RC224ATL with the exception of 3.3 V digital I/O buffers, which require a 3.3 V digital supply instead of a 5 V digital supply.

Specifications and features

The RC223DP has the following features:

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

Application Scenarios

The RC223DP can be used in electronic devices that require compatible IC chips, specifically those that can be connected to host processors that are 3.3 V I/O capable.

Comparison

• 3.3 V I/O capable part incorporates 3.3 V compatible digital I/O buffers.
• No hardware and software differences between the existing and the new part, except for the 3.3 V digital supply requirement.
• Low power consumption.

• None mentioned in the content.