54F161A Synchronous Presettable Binary Counter(??????????????????)
54F161A/B2A Synchronous Up Counter
54F161A/BEA Synchronous Up Counter
54F161A/BFA Synchronous Up Counter
54F161ADC COUNTER|UP|4-BIT BINARY|F-TTL|DIP|16PIN|CERAMIC
54F161ADM Synchronous Presettable Binary Counter
54F161ADMQB Synchronous Up Counter
54F161AFM Synchronous Presettable Binary Counter
54F161ALM Synchronous Presettable Binary Counter
54F161ALMQB Synchronous Up Counter