DUNE SYSTEMS 2603 Willa Drive St. Joseph MI 49085 (616) 983-2352 CHIP CHECKER 64/128 $159.00 + 3.50 S&H PC Version $259.00 +3.50 S&H Software Updates will be offered for $12 as new chip tests become available. Turn your Commodore C64 or C128 into a digital IC tester using Dune System's CHIP CHECKER. Simply place a chip in the CHIP CHECKER and press a single key to run tests. Weed out bad chips from your stock before they can cause trouble. Check new chips as they arrive while still under warranty. Dune System's CHIP CHECKER tests over 500 ICs including 74/75 TTI, 14/4 CMOS, and 74/75 CMOS chips with up to 24 pins. Unlabelled or mislabelled chips can be idenified using a TESTALL procedure which automatically runs all available tests on the IC in question. No reference chip is ever required to run any test. All 74/75 series are handled. On instruction from the computer the CHIP CHECKER sets the correct vcc and ground pins; no switches must be set for different chips. The user need only enter the chip number desired or press a key to run the TESTALL procedure. Using pull-up and pull-down resisitors the CHIP CHECKER performs both sink and source tests on chip outputs. This feature also enables the tester to distinguish between chips that have the same logic but have different output structures. The CHIP CHECKER has two 24 pin Zero Insertion Force sockets, one socket for .3" wide chips and the other for .6" wide chips. Chips with 8 to 24 pins can be handled. Software for CHIP CHECKER is available only on disk and is easily copied for backup. Updated versions will be offered as new chip tests are developed. The program (all machine code) is easy to load and run. After loading, the user may select the series he wishes to check by pressing one of the function keys. When testing a specific chip number, CHIP PASSED or CHIP FAILED is displayed. If TESTALL is chosen, the chip number is displayed. The CHIP CHECKER only turns on the chip while the test is being run. The power is turned off as soon as the chip passes or at its first failure of any part of any test. This protects the chip if the wrong test is run and also makes the TESTALL procedure faster. The CHIP CHECKER is connected with the C64 or C128 through the user port. The data is transmitted in parallel (8 wide) and expanded to 24 lines in the checker. Two additional lines are used to control the tester. CHIP CHECKER has its own power supply. No power is drawn from the host computer. The CHIP CHECKER measures 7.5" x 4.5" x 2.25". The cable connecting the checker to the computer is approximately 2' long. The 5' power cord is detachable. The CHIP CHECKER is covered by a one year warranty. Gayle R. Sims [TIGLON.G]