Inside

• Optoislated feedback amplifier with 1.24 V precision voltage reference
• EVM available for TLC320AD50 DSP analog interface
• 300 DPI linear sensor array with hold
• Precision Hi-Speed Light-to-Voltage Converters
• Low-power rail-to-rail op amps in SOT-23
• High output drive rail-to-rail op amp consumes only 50 µA per channel
• New CD-based "Designer's Guide and Data Book" allows for powerful searches
• 2.5 V Power management for DSP systems
• EVM available for TLC320AD75C ADA converter
• Programmable gain select is added to TI's combo family
• Single chip interface solution for the 9-pin GeoPort™ host
• 400 Mbps, high-speed data transmission
• PCI1220/1250A: Industry-leading CardBus soltions for tomorrow's applications
• Universal Serial Bus (USB) hub solutions

Universal Serial Bus (USB) hub solutions

Product Features

• Full Compliance to USB standard
• Integrated USB transceivers
• 3.3 V Operation
• Supports self-powered and bus powered mode
• Power dissipation of 33 mW
• Suspend mode power is 3.3 mW
• Characterized for operation from 0°C to 70°C

Introducing two new hub devices, TUSB2040 and TUSB2070, that offer the full advantage of flexibility, expandability and ease of use of Universal Serial Bus (USB). The TUSB2070 is the industry’s first seven port hub device and is ideal for home and small office computers that typically have a high peripheral count. The TUSB2070 supports two power modes, including a self-powered 7-port mode and a bus-powered 4-port mode. The low-power, 3.3 V device is an easy-to-use, integrated solution that incorporates all of the circuitry necessary to interface to a PC with USB capability. The TUSB2040 is a 4-port hub device designed to offer maximum cost efficiency to USB users with lower peripheral requirements. Like the 2070, this 3.3 V device enables maximum power savings with self-powered and bus-powered modes. It also integrates the same circuitry for easy interface to next-generation USB-based PCs.

Designing with USB devices such as the TUSB2040 and TUSB2070 makes PC expansion simple. One example of this is the reduction of cables needed to connect peripherals to the PC. Today, standard PCs allow only four or five peripherals, each with its own separate type of cable and connector. The USB standard enables up to 127 different peripherals to be simultaneously connected to a single PC. Another example is the simplicity of adding peripherals using USB’s plug and play capability. With Plug and Play's hot insertion ability, users can add or remove any peripheral while the system is running, making expansion cards and complicated installation procedures a thing of the past.

Both these devices offer power saving features. For instance, all downstream ports have autodetect capability for full-speed and low-speed operations. Also, support for power switching and overcurrent reporting to downstream ports is provided per port or ganged.

Both the TUSB2070 and TUSB2040 are available in a 48-pin TQFP package. The TUSB2040 is also available in a 28-pin DIP.

• TUSB2040N
• TUSB2040PT
• TUSB2070PT
• TLC8144CPT