StackableUSBTM I/O Device Carrier for the Tower System CRR-TOWER/HUB-TOWER Features The CRR-TOWER and the HUB-TOWER provide design engineers additional expansion for the Freescale Tower System. With easy access to the rugged StackableUSB connector, users can effortlessly evaluate plug-and-play 1/4-size (1.85" x 1.74") StackableUSB I/O devices. From wireless to GPS to serial conversion, OEMs are able to cost-effectively explore a wealth of peripheral functions for their embedded system. Software/Driver Support Utilizes standard USB drivers 9 Accommodates up to four (4) StackableUSB boards 9 Maximize system access to USB, SPI, and I2C ports 9 USB root or hub versions 9 No special software needed By offering OEMs the flexibility to build on the number of USB, SPI, and I2C ports, the CRRTOWER and the HUB-TOWER open the door for R&D engineers to evaluate a potential design in its entirety rather than one board/chip at a time. For garnering more I/O flexibility and capacity on a variety of form factors, Nano-ITX, PicoITX, 104 Form FactorTM, SUMIT-ISM, and COM Express versions are available as well (see ordering information). Compatible Hardware Tower System CPU motherboard PC Host desktops and laptops StackableUSB Client boards Mounting/Packaging Tower System and 1/4-size 104 Form Factor Standoffs, STDOFFUSB StackableUSB StackableUSB 2 Specifications: Mechanical: Freescale Tower form factor 3.543" x 3.197" 1/4-size 104 Form Factor mounting holes Power Requirements: +5v 5% supplied by power header 200 mA (min) (Current requirements dependent on USB devices plugged into HUB-TWR) Environmental: -40 to +85C operating -40 to +85C storage 5%-95% relative humidity, non-condensing Interface: StackableUSB 2 I C SPI Connections: Tower card-edge connectors for USB, 2 I C, and SPI Two (2) 1/4-size 104 Form Factor StackableUSB 1 Ordering Information: CRR-TOWER HUB-TOWER Carrier Board for two- four top-mounting 1/4-size 104 Form Factor boards for the Tower System Hub Carrier Board for two- four top-mounting 1/4-size 104 Form Factor boards for the Tower System Related Tower System Offerings: TWR1650-Linux* i.MX515 ARM Cortex-A8 Computer Module for the Tower System, Linux-ready TWR1650-WinCE* i.MX515 ARM Cortex-A8 Computer Module for the Tower System, WinCEready Related OEM Offerings: CRR-PICO/ StackableUSB I/O Device HUB-PICO Hub Carrier for Pico-ITX Form Factor CRR-NANO/ StackableUSB I/O Device HUB-NANO Carrier for Nano-ITX Form Factor CRR-104/ StackableUSB I/O Device HUB-104 Carrier for 104 Form Factor CRR-SUMIT/ StackableUSB I/O Device HUB-SUMIT Carrier for SUMIT-ISM CRR-COM/ StackableUSB I/O Device HUB-COM Carrier for COM Express StackableUSB trademark Micro/sys, Inc.