Global PB-501 Portable Logic Design Trainer Specification

Logic Switches/Input Ports

Dual function: 8 switches buffered by two 4 bit tri-state buffers with separate enables

Logic "1" output current 2.6 mA max @ 2.4 V min

Logic "0" output current 24 mA max @ 0.5 V max

Logic "1" enables input current: 400 µA @ 5 VDC

Logic "0" enables input current: 20 µA @ 0.2 V

Logic Indicators

Dual function: 8 LEDs driven by two 4-bit latches with separate enables

Output Ports Logic "1" input current: 50 µA @ 5 VDC

Logic "0" input current: None required

Connectors: All functions are permanently connected to a solderless tie-point connector. Each tie-point has 5 solderless connection points. Power and ground have 15 connection points each. All tie-points are labeled

Breadboarding: One UBS-100 solderless breadboarding socket is permanently attached to the unit. The UBS-100 can accomodate up to eight 14-pin DIP ICs with 4 tie-points per pin, plus eight power rails with 25 tie-points each, total 840 tie-points

Overall Dimensions: 2.56 in H x 7.5 in W x 10 in D

Power: 4 "C" batteries (not included). Optional 9 VDC battery adapter (LD-1-PB-501)

Weight: 1 lb 6 oz (less batteries and adapter)