MM54C90
4-Bit Decade / Binary Counter (National)
MM54C901
Hex Inverting TTL / Non-Inverting TTL / Inverting CMOS / Non-Inverting CMOS Buffer (National)
MM54C902
Hex Inverting TTL / Non-Inverting TTL / Inverting CMOS / Non-Inverting CMOS Buffer (National)
MM54C903
Hex Inverting TTL / Non-Inverting TTL / Inverting CMOS / Non-Inverting CMOS Buffer (National)
MM54C904
Hex Inverting TTL / Non-Inverting TTL / Inverting CMOS / Non-Inverting CMOS Buffer (National)
MM54C905
12-Bit Successive Approximation Register (National Semiconductor)
MM54C906
Hex Open Drain N / P-Channel Buffers (National)
MM54C909
Quad Comparator (National Semiconductor)
MM54C910
Random Access Read/Write Memory (National Semiconductor)
MM54C914
Hex Schmitt Trigger (National)