Level Shifter Board

TP240610

The Level Shifter Board provides embedded systems engineers with an easy and cost-effective method for interfacing Total Phase’s products with lower logic level devices. The Level Shifter Board is capable of down-shifting to all standard logic levels from 1.2 V to 3.3 V for the Aardvark™ I2C/SPI Host Adapter, the Beagle™ I2C/SPI Protocol Analyzer, and the Cheetah™ SPI Host Adapter. Engineers can also choose to power downstream devices.

  • Level shifting for I2C, SPI, MDIO, and GPIO signals
  • Supports voltage levels of 1.2V, 1.5V, 1.8V, 2.5V, 3.0V, and 3.3V
  • Supply power to downstream devices
  • I2C speeds of 800 kHz
  • SPI and MDIO speeds of 20 MHz
Beginners Guide to the I2C/SPI Level Shifter Board

I2C/SPI Product Guide

Image Image Image Image
Part Number TP240141 TP280121 TP500110 TP320121
User Manual HTML HTML HTML HTML
Datasheet PDF PDF PDF PDF
RoHS Compliant RoHS Compliant RoHS Compliant RoHS Compliant RoHS Compliant
I2C Master Image
Up to 800 kHz 1
Image
Up to 3.4 MHz
I2C Slave Image
Up to 800 kHz 1
Image
Up to 3.4 MHz
SPI Master Image
Up to 8 MHz 2
Image
up to 40 MHz+ 3
Image
Up to 80 MHz
SPI Slave Image
Up to 4 MHz 2
Image
Up to 20 MHz
GPIO Image Image
Up to 16
I2C Monitor Image
up to 4 MHz
SPI Monitor Image
up to 24 MHz
Windows, Linux & Mac OS X Image Image Image Image
USB Bus Powered Device Image
Full-Speed
Image
High-Speed
Image
High-Speed
Image
High-Speed
Software GUI Image Image Image Image
Development API / DLL Image Image Image Image
LabVIEW Driver Image Image Image Image
Dimensions L: 3.5″ (8.9 cm)
W: 1.6″ (4.1 cm)
D: 0.9″ (2.2 cm)
L: 3.5″ (8.9 cm)
W: 1.6″ (4.1 cm)
D: 0.9″ (2.2 cm)
L: 4.55″ 11.6 cm)
W: 3.05″ (7.7 cm)
D: 1.15″ (2.9 cm)
L: 4.6″ (11.7 cm)
W: 2.75″ (7.0 cm)
D: 1.1″ (2.8 cm)

1Actual system bus speed may vary as a function of capacitance.

2The quoted values are intra-byte speeds. Please refer to the datasheet for timing restrictions.

3Customers have successfully over-clocked the Cheetah SPI adapter to 50MHz.

Total Phase also has a number of accessories that can be used in conjunction with the products above.

Tech Specs

Power Consumption
  • Will draw approximately 6 mA from the Adapter/Analyzer side when configured to power the target device
  • Will draw approximately 4 mA when the target is supplying its own power
  • Will draw approximately 1 mA on the Target side of the target device is supplying power to the board
Speed
  • I2C communication up to 800 kHz
  • SPI/MDIO communication up to 18 MHz when shifting to 1.2 V and up to 20 MHz when shifting to 3.3 V*
    *This is dependent on specific configurations and the timing specification of the target device
Hardware
  • Level Shifter Board
  • 1 6″ 10-pin ribbon cable
  • 1 1.5″ 10-pin ribbon cable
  • 3 jumpers for configuration
Dimensions and Weight
  • 3″ x 2.9″ (76.2 mm x 73.7 mm)
  • Mounting holes are 0.187 inches diameter
Quality
  • RoHS
  • Manufacturing
    • ISO 9001
    • ISO 13485
    • AS9100C
    • ITAR