Radiation Hardened Synchronous 4-bit Up/down Counter CorporationThe Intersil HCS190MS is an asynchronously presettable BCD
Decade synchronous Counter Presetting the Counter to the
number on the preset data inputs (P0 - P3) is accomplished 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 overow or underow of the Counter occurs, the Terminal
Count output (TC), which is low during counting, goes high and
remains high for one Clock cycle. This output CAN be used for look-
ahead carry in high speed cascading. The TC output also initiates
the Ripple Clock output (RC) which, normally high, goes low and
remains low for the low-level portion of the Clock pulse. These
Counter CAN be cascaded using the Ripple Carry output.
If the decade Counter is preset to an illegal state or assumes an
illegal state when power is applied, it will return to the normal
sequence in one or two counts.
The HCS190MS utilizes advanced CMOS/SOS technology to
achieve high-speed operation. This device is a member of
radiation hardened, high-speed, CMOS/SOS Logic Family.
The HCS190MS is supplied in a 16 lead Ceramic atpack
(K sufx) or a SBDIP Package (D sufx). By Intersil Corporation
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HCS190MS Pb-Free | HCS190MS Cross Reference | HCS190MS Schematic | HCS190MS Distributor |
HCS190MS Application Notes | HCS190MS RoHS | HCS190MS Circuits | HCS190MS footprint |