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SN54AS867, SN54AS869 SN74ALS867A, SN74ALS869, SN74AS867, SN74AS869
SYNCHRONOUS 8-BIT UP/DOWN COUNTERS
SDAS115C – DECEMBER 1982 – REVISED JANUARY 1995
• Fully Programmable With Synchronous
Counting and Loading
• SN74ALS867A and ′AS867 Have
Asynchronous Clear; SN74ALS869 and ′AS869 Have Synchronous Clear
• Fully Independent Clock Circuit
Simplifies Use
• Ripple-Carry Output for n-Bit Cascading • Package Options Include Plastic
Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (NT) and Ceramic (JT) 300-mil DIPs
description
These synchronous, presettable, 8-bit up/down counters feature internal-carry look-ahead circuitry for cascading in high-speed counting applications.