在數字電子技術中應用的最多的時序邏輯電路。計數器不僅能用于對時鐘脈沖計數，
還可以用于分頻、定時、產生節拍脈沖和脈沖序列以及進行數字運算等。但是并無法顯示計算結果，
一般都是要通過外接LCD或LED屏才能顯示。
瑞士佳樂計數器

162704
CNT-DEMCAS01A
DCT2A10800
DCT86A12300
DMF1461A12000
DMF1461A12300
DMF1462A12000
DMF1462A12300
DMF61A100000
DMF61A100300
DMF61A102000
DMF61A102300
DMF62A100000
DMF62A100300
DMF62A102000
DMF62A102300
DMF861A12300
DMF862A12300
E1CT46200013
E1CT46200051
E1CT46200054
E1CT46200056
E1HM35075
E1HM35351
E1HM40071
E1HM40075
E1HM40084
E1HM40085
E1HM40351
E2CT45210013
E2CT45210051
E2CT45210054
E2CT45210056
E2CT45510056
E2CT45910013
E2HM352301
E2HM352302
E2HM352373
E2HM4071
E2HM4075
E2HM4084
E2HM4351
ECH40075
ECH40084
ECH40351
EMCT46200013
EMCT46800013
EMCT47200013
FKA01A12850
FKA01A12852
FKA01A12853
FKA01X724
FKA02A12850
FKA02A12851
FKA02X724
FKA03A12853
FKA03XW24
FSA01A12850
FSA01A12853
FSA01XW24
FSA02A12850
FSA02A12853
FSA02XW24
NI-ACCG008040