HCTS190MS Datasheet | Intersil

September 1995 Radiation Hardened Synchronous 4-Bit Up/Down Counter Description The Intersil HCTS190MS is an asynchronously presettable BCD Decade synchronous counter. Presetting the counter to the number on the preset data inputs (P0 - P3) is acplished by a low on the parallel load input (PL). Counting occurs when (PL) is high, Count Enable (CE) is low and the Up/Down (U/D) input is either low for up-counting or high for down-counting. The counter is incremented or decremented synchronously with the low-to-high transition of the clock. When an overflow or underflow of the counter occurs, the Terminal Count output (TC), which is low during counting, goes high and remains high...