- DM74LS490M
Asynchronous Up Counter - DM74LS491
10-Bit Counter - DM74LS491AJ
Synchronous Up/Down Counter - DM74LS491AN
Synchronous Up/Down Counter - DM74LS491AV
Synchronous Up/Down Counter - DM74LS491J
10-Bit Counter - DM74LS491J/A+
Synchronous Up/Down Counter - DM74LS491J/B+
Synchronous Up/Down Counter - DM74LS491N
10-Bit Counter - DM74LS491N/A+
Synchronous Up/Down Counter - DM74LS491N/B+
Synchronous Up/Down Counter - DM74LS49J/A+
Decoder/Driver - DM74LS49N/A+
Decoder/Driver - DM74LS49N/B+
Decoder/Driver