
Micrel
General Description
The MIC50395 is an ion-implanted, P-channel MOS six decade synchronous up/down-counter/display driver with compare-register and storage-latches. The counter as well as the register can be loaded digit-by-digit with BCD data. The counter has an asynchronous-clear function.
FEATUREs
• Single power supply
• Schmitt-Trigger on the count-input
• Drives common anode or cathode displays (CA with buffer)
• Six decades of synchronous up/down counting
• Look-ahead carry or borrow
• Loadable counter
• Loadable compare-register with comparator output
• Multiplexed BCD and seven-segment outputs
• Internal scan oscillator
• Direct LED segment drive
• Interfaces directly with CMOS logic
• Leading zero blanking
• MIC50396 programmed to count time:
– 99 hrs. 59 min. 59 sec.
• MIC50397 programmed to count time:
– 59 hrs. 59 min. 99/100 min.