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1 SN54LS390 DUAL DECADE COUNTER; DUAL 4-STAGE BINARY COUNTER 198K MOTOROLA 4189799
2 SN54LS390 DUAL 4-BIT DECADE AND BINARY COUNTERS 914K TI 4189798
3 SN54LS390 DUAL 4-BIT DECADE AND BINARY COUNTERS 1180K TI 2139052
4 SN54LS390FK DUAL 4-BIT DECADE AND BINARY COUNTERS 914K TI 4189797
5 SN54LS390J DUAL 4-BIT DECADE AND BINARY COUNTERS 914K TI 4189796
6 SN54LS390J DUAL DECADE COUNTER; DUAL 4-STAGE BINARY COUNTER 198K MOTOROLA 4189795
7 SN54LS390J DUAL DECADE COUNTER; DUAL 4-STAGE BINARY COUNTER 73K ON 4189794
8 SN54LS390J DUAL 4-BIT DECADE AND BINARY COUNTERS 1180K TI 2139051
9 SN54LS390W DUAL 4-BIT DECADE AND BINARY COUNTERS 914K TI 4189793