StackableUSB™I/O Device Carrier
for the Tower System
CRR-TOWER/HUB-TOWER
Features
9 Accommodates up to four (4)
StackableUSB board s
9 Maximize syst em ac cess to USB,
SPI, and I2C ports
9 USB root or hub versions
9 No special software needed
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 ¼-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.
By offering OEMs the flexibility to build on the
number of USB, SPI, and I2C ports, the CRR-
TOWER and the HUB-TOWER open the
door for R&D engineers to evaluate a
potential design in its entiret y rather than one
board/chip at a time.
For garnering more I/O flexibility and capacity
on a variety of form factors, Nano-ITX, Pico-
ITX, 104 Form Factor™, SUMIT-ISM, and
COM Express versions are available as well
(see ordering information).
Software/Driver Support Compatible Hardware Mounting/Packaging
Utilizes standard USB drivers Tower System CPU motherboard
PC Host desktops and laptops
StackableUSB Client boards
Tower System and ¼-size 104
Form Factor
Standoffs, STDOFFUSB
Specifications:
Mechanical:
Freescale Tower form factor
3.543” x 3.197”
¼-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 +85°C operating
-40° to +85°C storage
5%-95% rela tive humidity, non-condensing
Interface:
StackableUSB
I2C
SPI
Connections:
Tower card-edge connectors for USB,
I2C, and SPI
Two (2) ¼-size 104 Form Factor
StackableUSB
Ordering Information:
CRR-TOWER Carrier Board for two–
four top-mounting ¼-size
104 Form Factor boards
for the Tower System
HUB-TOWER Hub Carrier Board for two–
four top-mounting ¼-size
104 Form Factor boards for
the Tower System
Related Tower System Offerings:
TWR 16 5 0 -L in ux * 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, WinCE-
ready
Related OEM Offerings:
CRR-PICO/
HUB-PICO StackableUSB I/O Device
Hub Carrier for Pico-ITX
Form Factor
CRR-NANO/
HUB-NANO StackableUSB I/O Device
Carrier for Nano-ITX Fo rm
Factor
CRR-104/
HUB-104 StackableUSB I/O Device
Carrier for 104 Form Fac tor
CRR-SUMIT/
HUB-SUMIT StackableUSB I/O Device
Carrier for SUMIT-ISM
CRR-COM/
HUB-COM StackableUSB I/O Device
Carrier for COM Express
StackableUSB trademark Micro/sy s, Inc.
StackableUSB
StackableUSB
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