74F190 Datasheet

The 74F190 is a Up/Down Decade Counter.

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Part Number74F190
ManufacturerNational Semiconductor
Overview The ’F190 is a reversible BCD (8421) decade counter featuring synchronous counting and asynchronous presetting The preset feature allows the ’F190 to be used in programmable dividers The Count Enable . Y Y Y Y High-speed 125 MHz typical count frequency Synchronous counting Asynchronous parallel load Cascadable Commercial 74F190PC Military Package Number N16E Package Description 16-Lead (0 300 Wide) Molded Dual-In-Line 16-Lead Ceramic Dual-In-Line 16-Lead (0 150 Wide) Molded Small Outline JEDE.
Part Number74F190
DescriptionUp/Down Decade Counter
ManufacturerFairchild Semiconductor
Overview The ’F189 is a high-speed 64-bit RAM organized as a 16word by 4-bit array Address inputs are buffered to minimize loading and are fully decoded on-chip The outputs are TRISTATE and are in the high imp. Y Y Y Y Y TRI-STATE outputs for data bus applications Buffered inputs minimize loading Address decoding on-chip Diode clamped inputs minimize ringing Available in SOIC (300 mil only) Commercial 74F189PC Military Package Number N16E Package Description 16-Lead (0 300 Wide) Molded Dual-In-Line 16.