资 源 简 介
The CD40174BC consists of six positive-edge triggered Dtypeflip-flops; the true outputs from each flip-flop are externallyavailable. The CD40175BC consists of four positiveedgetriggered D-type flip-flops; both the true and complementoutputs from each flip-flop are externally available.All flip-flops are controlled by a common clock and a commonclear. Information at the D inputs meeting the set-uptime requirements is transferred to the Q outputs on thepositive-going edge of the clock pulse. The clearing operation,enabled by a negative pulse at Clear input, clears allQ outputs to logical “0” and Q s (CD40175BC only) to logical“1”.All inputs are protected from static discharge by diodeclamps to VDD and VSS.
