Dm54ls469/dm74ls469 8-bit Up/down Counter - National Semiconductor

The LS469 is an 8-bit synchronous up/down Counter DM54LS469 DM74LS469 with parallel load and hold capability. Three function-select in- puts (LD,UD, CBI) provide one of four operations which occur synchronously on the rising edge of the Clock (CK). The LOAD operation loads the inputs (D7D0) into the out- put Register (Q7Q0). The HOLD operation holds the previ- ous value regardless of Clock transitions. The INCREMENT operation adds one to the output Register when the carry-in input is TRUE (CBIeLOW), otherwise the operation is a HOLD. The carry-out (CBO) is TRUE (CBOeLOW) when the output Register (Q7Q0) is all HIGHs, otherwise FALSE (CBOeHIGH). The DECREMENT operation subtracts one from the output Register when the borrow-in input is TRUE (CBIeLOW), otherwise the operation is a HOLD. The bor- row-out (CBO) is TRUE (CBOeLOW) when the output reg- ister (Q7Q0) is all LOWs, otherwise FALSE (CBOeHIGH). The output Register (Q7Q0) is enabled when OE is LOW, and disabled (HI-Z) when OE is HIGH. The output drivers will sink the 24 mA required for many bus-interface stan- dards. Two or more LS469 octal up/down Counters may be cascaded to provide larger Counters By National Semiconductor Corporation
DM54LS469 's PackagesDM54LS469 's pdf datasheet
DM74LS469




DM54LS469 Pinout, Pinouts
DM54LS469 pinout,Pin out
This is one package pinout of DM54LS469,If you need more pinouts please download DM54LS469's pdf datasheet.

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