The Saleae Logic is an 8-channel USB Logic Analyzer that records and displays digital waveforms and decodes common protocols, like Async Serial, SPI, I2C, and UNI/O(R). It can record up to 200M samples at up to 24MHz, providing extensive debugging insight into a board level design. Logic works with 3.3V and 5V logic levels and comes complete with carrying case, E-Z-Hook probes, wire harness, and USB cable. Software - which operates in a fully-featured demo mode when no Logic is attached - can be downloaded free of charge at http://www.saleae.com/
Logic samples each channel at up to 24M times per second. A large fraction of practical, real world applications run at less than 10MHz, and Logic is ideal for these.
Logic has 8 inputs -- it can monitor 8 different digital signals at once. For many modern microcontroller-based designs, this is plenty.
10 billion samples
Logic can save as many as 10B samples, letting you to capture even the most elusive events. No more dealing with frustratingly small sample buffers.
Logic accepts voltages from -.5V to 5.25V, and has standard CMOS thresholds of .8V for logic low, 2.0V for logic high. Input impedance is approximately 1MΩ paralleled by 10pF
Start debugging within 5 minutes of opening your new Logic; everything is included: An ultra-flexible 22AWG 64/40 wire harness, 9 high-quality micro-hook probes, a USB cable (2 meter mini-B to A), and a nice carrying case. Download the software from our site
We love well made tools. That’s why we make Logic’s case out of custom CNC machined aluminum and make sure its anodized surface is finished to perfection
Logic’s inputs are protected against overvoltage conditions via current-limiting resistors and ultra-low-capacitance diode clamps. A resettable fuse protects the USB ground return line to augment the USB host’s existing protection.
Geometry and Weight
- Length & Width: 1.7 in (43.2mm)
- Thickness: .365 in (9.3mm)
- Volume: 1 in3 (16.4 cm3)
- Weight: .9 oz (25.5 gm)
- Input voltage range: -0.5V to 5.25V
- Input Low Voltage: -0.5V to 0.8V
- Input High Voltage: 2.0V to 5.25V
- Works with 5V, 3.3V, 2.5V, 2.0V systems. May work with 1.8V but not recommended.
- ESD protected per CE requirements
- Over-voltage protection to +/- 15V. Not meant for continuous operation outside -0.5V to 5.25V.
- Input Impedance: 1Mohm || 10pF (typical, approximate)
- Crystal: +/-20ppm, 24MHz
- Error/Accuracy: pulse-width measurement: +/- 42ns (at 24MHz).
Sample Rate & Depth
- 24MHz. 16MHz, 12MHz, 8MHz, 4MHz, 2MHz, 1MHz, 500KHz, 250KHz, 200KHz, 100KHz, 50KHz, 25KHz; Note that achieving the highest sample rates requires low USB latency; this may not be achievable on all computers. Performance may improve with the removal of other USB devices, using a different USB host controller, or increasing the software's process priority.
- 10B samples. Absolute max depends on data compressibility, available RAM and operating system. 10B samples assumes reasonably high compressibility.
- Windows XP (32-bit)
- Windows Vista (32-bit or 64-bit)
- Windows 7 (32-bit or 64-bit)
- Mac OS X 10.4 Tiger or higher
- Linux: recent Ubuntu, Fedora, or openSUSE. Other distributions are likely to work but not specifically supported.
- USB 2.0
What's in the Box
- Logic (fully tested)
- 1x9 Ultra-Flexible Test Lead Set
- x9 Micro Hook Clips
- USB Cable (2M length, A to mini-B)
- Custom Carrying Case
- Software not included
- Custom CNC machined aluminum enclosure
- 2-part elastomer injection molded bottom cover
- 4-layer PCB, professionally designed, laid out, and design reviewed
- 1x9 male IDE .1 in pitch (aperture size: .110 in x .940 in; .030in radiused corners)
- USB Mini-B
- 50 mA Idle (from USB, typical)
- 75 mA Sampling (from USB, typical)
- RoHS Compliant
- CE Certified
- Extra 1x9 wire bundles
- Extra x9 pack of test clips
- 1x9 to 1x9 IDE cable
- 1x9 IDE to individual wires cable
Safely & Equipment Protection
- Logic may not be used with DUTs (devices under test) which are not electrically isolated from MAINS (i.e. wall power).
- DUTs which are battery powered, or USB powered (from the same computer as Logic) are acceptable.
- DUTs powered by AC adapters which have only 2 prongs, and do not have an earth ground connection (such as most "wall warts") usually provide MAINS isolated power and are acceptable.
- For other DUTs, isolation can typically be achieved through the use of a dedicated isolation transformer.
- When using USB powered DUTs, special care should be taken to avoid connecting USB sourced power to Logic's ground, as this provides a short-circuit return path. While both Logic and USB ports are designed to survive a short circuit event, care should be taken to minimize its likelihood