HEF4522B Programmable 4-bit down counter
HEF4522BD Programmable 4-bit down counter
HEF4522BF Programmable 4-bit down counter
HEF4522BN Programmable 4-bit down counter
HEF4522BP Programmable 4-bit down counter
HEF4522BPN Synchronous Down Counter
HEF4522BT Programmable 4-bit down counter
HEF4522BTD Synchronous Down Counter
HEF4522BTD-T Synchronous Down Counter