Counter Single 4-Bit Sync Binary UP 16-Pin SO T/R

4-bit binary counters feature an internal carry look-ahead and can be used for high-speed counting. Synchronous operation is provided by having all flip-flops clocked simultaneously on the positive-going edge of the clock. The clock input is buffered. The outputs of the counters may be preset to High or Low level. A Low level at the Parallel Enable input disables the counting action and causes the data at the D0-D3 inputs to be loaded into the counter on the positive-going edge of the clock (provided that the setup and hold requirements for Parallel Enable are met). Preset takes place regardless of the levels at Count Enable (CEP, CET) inputs.

• Synchronous counting and loading
• Two count enable inputs for n-bit cascading
• Positive edge-triggered clock
• Asynchronous Master Reset (74F161A)
• Synchronous Reset (74F163A)
• High speed synchronous expansion
• Typical count rate of 130MHz
• Industrial range (-40°C to +85°C) available