IC monitor

Digital probes come in many shapes and versions. All of these, however, suffer from a single disadvantage: they can monitor the logic level at only one IC pin at a time. To overcome this limitation, we propose a 16-way IC monltor with a probe that can be clipped on to virtually any commonly used logic dual-in-line integrated circuit wlth up to 16 pins. Ideal for getting to grips with digital circuits, this IC monitor gives an instant indication of all input and output levels simultaneously. Interestingly, it automatically finds the power pins of the IC under test and works wlth most TTL and CMOS circuits.