Texas Instruments  -  CD74HCT193E datasheet: pdf 
logic, sync 4bit up/dn cntr, 16dip; no. of pins:16;...
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Philips  -  74HCT193N datasheet: pdf 
74hct cmos, 74hct193, dip16, 5v; logic ic...
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Philips  -  74HCT193D datasheet: pdf 
logic, 74hct, counter, so16; logic ic function:binary...
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