This CPU is End of Life (EOL). The CPU chip on this product is EOL. Existing customers will be supported via last time buy. See Product Life Cycle Guarantee.



WiFi Enabled Embedded Computer

Lifecycle: De-emphasized | Released: December 2009 | RoHS Compliant Badge RoHS Compliant

The TS-7552 is a Single Board Computer based on a 250MHz ARM9 CPU from Cavium Networks.

  • Reliable RAID-like XNAND storage
  • Low power consumption as low as 1.7 W
  • MiniPCI WiFi 802.11g radio optional
$179 (Qty. 100) $216 (Qty. 1)
No minimum order quantity on standard products.

The TS-7552 features a 250MHz Cavium ARM9 CPU and a 5000 LUT Lattice FPGA. With 64MB RAM and a bootable 256MB on-board flash drive with our new XNAND technology, the TS-7552 is a powerful and extremely reliable embedded solution. External devices can connect to the TS-7552 via Ethernet, 802.11g WiFi, USB host, USB device, or I2C ports as well as DIO, UARTs, CAN Bus, DMX, and SPI which are implemented in the standard FPGA load.

Does your application require custom real-time logic such as non-standard bus interfaces, PWM outputs, quadrature decoding, pulse timing, or digital counters? embeddedTS can integrate that functionality into a custom TS-7552 FPGA configuration for an elegant and affordable solution.

The standard TS-7552 configuration implements the following features:

  • 3 XUARTS* (2 RS-232 and 1 RS-485)
  • 1 CAN Bus
  • SPI Support
  • I2C Support
  • DMX Support
  • Watchdog Timer
  • Up to 10 DIO Lines
  • Battery Backed RTC
  • Optional MiniPCI Express 802.11g WiFi Radio
  • Temperature Sensor (Rev. B Only)

TS-7552 Power Consumption

Under normal operation, the TS-7552 consumes about 3W of power and about 2.4W when powered via USB port (no USB devices plugged in and no WiFi radio option). Power consumption can be reduced to 1.70W by disabling the USB ports and even further by downclocking the CPU.

The TS-7552 requires about 400mA for normal operation and will require more if connecting USB devices, a larger microSD card, or WiFi option. For this reason, it is recommended to power the device at 8-28V input via barrel connector or 2 pin terminal connector.

Differences between TS-7550 and TS-7552

The TS-7552 is based on the same core as the TS-7550 and adds features such as additional storage via microSD card, additional USB ports, a MiniPCI Express WiFi 802.11g Radio option, a DB9 COM port, and a barrel-type connector or 2 position screw terminal for 8-28VDC power in. The TS-7552 dimensions are 159.5mm x 74mm, as compared to 74.3mm by 66.0mm for the TS-7550.

XNAND Technology

embeddedTS XNAND technology is an ultra reliable and industrial grade user-space device driver that uses Reed-Solomon codes, extra checksums, and a RAID based technique to allow any Linux filesystem to be used with confidence on SLC NAND flash. Our TS-BOOTROM can also boot from XNAND for an ultra-reliable bootup. Please refer to the XNAND whitepaper for more information.

* embeddedTS XUART core is an extended UART core supporting 7, 8, 9, or 10 bits per character, Tx and Rx FIFOs 256+ characters deep, and accurate measurement of idle and busy times. These ports support advanced protocols such as DMX/RDM.


The TS-7552 SBC boots to Linux 2.6.24 from either a microSD card or on-board XNAND drive. The 256MB on-board XNAND Drive is enough to store a bootable kernel image, initial ramdisk image, and a minimal version of Debian "Lenny" Linux. Storage memory can be expanded through the microSD card socket. A bootable microSD card must contain a Linux kernel image, a initial ramdisk image, and a valid Linux root filesystem. The fast Linux bootup solution was optimized for speed and includes kernel, initrd, and filesystem (Busybox) tweaks. Since this board boots to an initrd (initial ram disk) with a read-only mounted filesystem, it is possible to have something other than a shell prompt running after bootup by editing the /linuxrc shell script on the initrd. Additional TS-7552 software features include:

  • Boots Linux 2.6.24 out-of-the-box in less than 3 seconds (to a shell prompt).
  • MicroSD card pre-installed with minimal Debian "Lenny" Linux distribution.
  • Un-brickable design ensures 100% recoverability from microSD card in case of on-board XNAND drive erasure.
  • Startup Linux mini-root scripts allow flexible root and backup filesystem selection (microSD, NFS, USB flash) as well as software field upgrade support.

Linux OS and Debian Support

embeddedTS' TS-7552 ARM Single Board Computers (SBC) are compatible with a wide range of Operating Systems (OS's). The Linux choice is highly recommended and our products are totally integrated with the open-source vision. The boards ship with Linux 2.6.24 kernel running out-of-the-box. There is no proprietary source code in the kernel since all the hardware specific functionalities are handled by user-space utilities. The Linux kernel includes driver support for on-board hardware, enabling quick time to market of end-users applications. Examples and source codes are also available for downloading.

The compact initial ramdisk filesystem is based on Busybox and uClibc and is improved for performance and flexibility. Specific Linux scripts and utilities that handle the TS-7552 functions are included. In addition, the full Debian binaries and services are available from the initial ramdisk after mounting the microSD card.

The TS-7552 SBCs are configured to load Debian "Lenny" Linux from the on-board XNAND drive or microSD card during boot up time. The on-board XNAND drive uses a minimal Debian "Lenny" Linux distribution that has been compacted to fit in the 256MB space and leave about 70MB free for the user and includes utilities such as apt-get for installing and removing programs. The microSD card uses a full featured Debian "Lenny" Linux distribution which includes a complete GNU C/C++ embedded development environment. In addition, Apache Web Server, FTP, SSH, Telnet and Samba network services are available with C/PHP/Perl for embedded CGI development.

CAN Bus Support in User Space

The TS-7552 utilizes an SJA1000C-compatible FPGA core out of the box complete with documentation and sample code. The sample code provides a simple utility to send/receive CAN packets and perform useful and common functions with the CAN bus from userspace. Additionally, this sample code includes network CAN service and can be automatically started on TS-7552 bootup which makes the writing of CAN enabled applications even simpler and furthermore allows for the possibility of development in languages other than C (Java, Python, etc..) and on systems other than the local Linux SBC (Linux/x86, Windows, etc..)

Please contact embeddedTS for further information regarding Operating System and software support for this product.

embeddedTS provides complete documentation for our mature products, including manuals, schematics, mechanical drawings, etc. The most recent documentation files are always made available through our website. If you don't find the documentation you are looking for, contact support for more information. Also, please make sure to visit our Embedded Systems Support webpage, our official documentation, and join our official Developers Forum.

Software Download
From the Blog:
Product Notices:
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Architecture ARM
Part Number CNS2132
Vendor Cavium
CPU Speed 250 MHz
Core Specs
Base Memory Capacity 64 MB
Watchdog Timer 1x
Base Flash Capacity 256 MB
Flash Type NAND
microSD Card Socket 1x
Battery-Backed Real Time Clock 1x
Temperature Sensor 1x
General I/O
General-Purpose Input/Output (GPIO) Pins 10x
Serial Interfaces
RS-232 Ports 3x
RS-485 Ports 1x
SPI Ports 1x
I2C Ports 1x
Peripheral Interfaces
USB Host Ports 4x
USB Device Ports 1x
mini PCI Express Bus 1x
Industrial Protocols
CAN Ports 1x
10/100 Ethernet Ports 1x
Operating Supply Voltage 8 VDC to 28 VDC
Maximum Power Consumption 1.70 W
Fanless Temperature Range 0 °C to 70 °C
Width 74.0 mm
Length 160.0 mm
User Programmable FPGA Yes
Linux Kernel Version 2.6.24
Debian Linux Yes
XNAND Storage Yes
Busybox Small Distribution Yes
Linux Fastboot w/ TS-Bootrom™ 3.93 s
Product Configurations 1 10 50 100
TS-7552-64-256XF $216 $204 $192 $179
TS-9448-RC-DB9 Thumbnail
In Board Specific Peripherals

Console Mini-Peripheral Board w/ 1 RC-DB9 cable

TS-ENC755 Thumbnail
In Enclosures

TS-7552 metal enclosure

More information
TS-9449-USB Thumbnail
In Board Specific Peripherals

Console Mini-Peripheral Board w/ 1 CB-USB-AMBM USB cable

Product Configuration
Part Description Price
TS-7552-64-256XF TS-7552 250MHz ARM9 SBC with 64MB RAM and 256MB XNAND flash Pricing
Board Specific Peripherals
Part Description Price
TS-9449-USB Console Mini-Peripheral Board w/ 1 CB-USB-AMBM USB cable $72
TS-9448-RC-DB9 Console Mini-Peripheral Board w/ 1 RC-DB9 cable $72
Flash Media
Part Description Price
MSD-4GB-7500 TS-7500 bootable 4GB microSD card pre-loaded with Debian $14
MSD-4GB-USB-7500 TS-7500 bootable 4GB microSD card pre-loaded with Debian, includes USB reader $45
MSD-4GB-BLANK SanDisk microSD card, Size 4GB $14
Accessories and Extras
Part Description Price
CB-JUMPER-10-F-F-6 Quantity 10 female-to-female 6-inch red jumper wires for use with 0.1” headers $6
CB-USB-AMBM USB Cable w/ connectors USB-A Male to USB-B Male $8
CB7-05 Null modem cable with a DB9F at each end $9
Power Supplies
Part Description Price
PS-12VDC-REG-BC International regulated 12VDC wall mounted power supply with barrel connector $19
Part Description Price
TS-ENC755 TS-7552 metal enclosure $42

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