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Jobmatch Systems / Janatek Logic-3P 

16 Channel Logic Analyzer

  • 200 MHz sampling rate

  • 16 channels

  • 128 Ksamples/channel buffer

  • Flexible trigger options

  • Variable input threshold

  • Variable pre-/post- trigger buffer

  • External clock input

  • Digital logger

  • Connects to PC printer port

  • Small physical size

  • Runs on Windows 95/98/NT/ME/2000/XP

  • CE compliant


The Logic-3p is small enough to fit into your shirt pocket, yet it is a sophisticated logic analyzer, capable of capturing data at 200 MHz on its sixteen channels simultaneously. It plugs to the PC parallel port and is ideal for carrying around, moving from PC to PC.  


Now a high-performance logic analyzer is within reach of every electronics professional and enthusiast.  You can leave that big expensive analyzer in the store... the Logic-3p will match the job.

Flexible Trigger Options

A trigger may be set to occur on a rising edge, falling edge, or change-of-state on any channel. It may also be set for a level (pattern) condition by specifying a '1' of '0' or 'x' (don't care) condition on all channels. Combinations such as Edge OR Pattern, Edge AND Pattern, Edge THEN Pattern, Pattern THEN Edge, etc. may be set. Triggering may also be set to occur should the pattern be valid shorter (glitch capture), or longer than a set duration.

During continuous capture the screen may be updated at regular intervals or when a set trigger condition is met. This is extremely useful for viewing continuously changing data, e.g. data on a serial line. By setting a condition you can monitor continuous screen updates, with the data nicely placed in the middle of the screen, where you can watch the data bits flipping.


The comprehensive software provides for a friendly and easily manageable environment for the wide spectrum of features. You can start meaningful measurements almost immediately after installing the software for the first time. Setting a trigger condition, capturing and navigating through the data, is a pleasure. The data may be viewed, saved and printed in various useful formats. If the Unit Under Test (UUT) is controlled by a PC, you do not require a second PC to run the logic analyzer software. Simply run your Logic-3p and UUT software in different windows.

Download Version 4.13 Zip File


Internal Sampling Clock 200MHz, 100MHz, 50MHz, 25 MHz, 10MHz, 5MHz, 2.5MHz, 1MHz, 500kHz, 250 kHz, 100kHz, 50kHz, 25kHz, 10kHz, 5kHz, 2.5kHz, 1.25kHz
Stability 100 PPM
Digital Logger Clock
Rates   Log rate: 5 seconds to 1 hour in 1 second steps
Stability   Logger timing obtained from PC

External clock input

Clock on rising/falling edge, 25 MHz max.
Digital channels 16 Inputs, 0 to 7V, 100 kOhm / 8 pF input impedance, 40 MHz input bandwidth

Data buffer  

Size   130000 (decimal) samples per channel
Pre/post-trigger buffer   Data buffer is divided in a Pre- and post trigger section, which sizes can be set in 1000 bytes steps

Threshold voltage  

1V, 1.3V, 1.5V, 1.7V, 2.0V, 2.2V, 2.4V 3%

Extended capture time

Varies depending on the sampling rate; 200MHz: 10 ms max ... 1.25kHz: 1677s max

Trigger conditions


"1", "0" and "dont care" conditions selectable on all channels
Edge    On any one channel. Rising edge, falling edge, or change-of-state
Edge/Pattern combinations   edge up, edge down, edge up OR edge down (change-of-state)
pattern OR edge up/edge down/change-of-state
pattern AND edge up/edge down/change-of-state
pattern THEN edge up/edge down/change-of-state
edge up/edge down/change-of-state THEN pattern
pattern < duration (glitch capture). Duration 20ns tolerance, 1 ms max.
pattern > duration. Duration 20ns tolerance, 1 ms max.


Unconditionally: Screen updates at regular intervals
Conditionally: Display updates on set Edge/Word trigger condition


A trigger may be forced
Display digital, 2 levels
No. of channels   Any number may be displayed at a time
Channel Names User specified
Display Order User specified
Zooming Zoom from single samples to all. Zoom in, out, previous, all, between cursors
Continuous data display Screen updates conditionally or unconditionally


X, Y, Z-cursors and T-trigger line, signal values at X and Y intersects shown

Time measurements  

Between any two cursor lines or cursor line and trigger line

Edge snapping  

Cursors snap to exact edges in data, measurements are taken to/from. Indicated on screen

Word search  

"1", "0", and "dont care" conditions specified, also repeated search

Text display  

Hexadecimal and binary formats
Trigger indicator   Trigger LED on the unit is mirrored on the main screen
Beep on trigger On/Off

Debugging PC controlled units

Run the Logic-3p and the Unit Under Test software (if the UUT is PC base) from the same PC.
No second PC is required.
The UUT software may be launched from within the Logic-3p software

Printed output

Timings print, bitmap, Text: Hexadecimal and binary formats. Portrait or landscape


Signal files: contains captured data, date stamp, time stamp, user information (e.g. heading,
comments, etc.), channel name, cursor positions, software configuration, etc.
When a signal file is reloaded the machine and software and data is set as when the file was saved.  Bitmap files: Bitmap of the main screen/ Bitmap similar to print presentation.
Text files: Hexadecimal format
Configuration files: Software configuration. Autosave configuration option

LED indicators

Power, trigger

Port settings

$278 (LPT2), $378 (LPT1), $3BC (LPT3)

Power requirements

Regulated 5V 3% supply:
4.5 W Active Capturing
1 W Power On But Not Capturing
Power (+5V) supplied by regulated supply


height 26 mm
length 150 mm 
width 86 mm 
weight 200 gram
Cable lengths Signal, Power 1.5 - 1.8m
Operating temperature 10C - 40C (50F-105F)

PC Hardware Requirements

RAM 4 Mbytes
Free Hard Drive Space For Install 3 Mbytes
Operating System  Windows 9x 
Processor 486 PC Or Better/Equivalent 
Pointing Device Mouse or Equivalent
Display VGA or Compatible 

Ordering information


16 Channel Logic Analyzer

The Logic-3P is delivered with Windows based software, user manual, 16 signal probe clips and a ground probe clip, parallel interface cable and a power supply.

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