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54ACTQ377L Folha de dados(PDF) 1 Page - National Semiconductor (TI) |
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54ACTQ377L Folha de dados(HTML) 1 Page - National Semiconductor (TI) |
1 / 6 page 54ACTQ377 Octal D Flip-Flop with Clock Enable General Description The ACTQ377 has eight edge-triggered, D-type flip-flops with individual D inputs and Q outputs. The common buff- ered Clock (CP) input loads all flip-flops simultaneously, when the Clock Enable (CE) is LOW. The register is fully edge-triggered. The state of each D in- put, one setup time before the LOW-to-HIGH clock transi- tion, is transferred to the corresponding flip-flop’s Q output. The CE input must be stable only one setup time prior to the LOW-to-HIGH clock transition for predictable operation. The ACTQ377 utilizes FACT Quiet Series® technology to guarantee quiet output switching and improved dynamic threshold performance. FACT Quiet Series features GTO® output control and undershoot corrector in addition to a split ground bus for superior performance. Features n Ideal for addressable register applications n Clock enable for address and data synchronization applications n Eight edge-triggered D flip-flops n Buffered common clock n Outputs source/sink 24 mA n See ’273 for master reset version n See ’373 for transparent latch version n See ’374 for TRI-STATE® version n Guaranteed simultaneous switching noise level and dynamic threshold performance n TTL-compatible inputs and outputs n Standard Microcircuit Drawing (SMD) 5962-9219001 Logic Symbols Pin Names Description D 0–D7 Data Inputs CE Clock Enable (Active LOW) Q 0–Q7 Data Outputs CP Clock Pulse Input GTO® is a trademark of National Semiconductor Corporation. TRI-STATE® is a registered trademark of National Semiconductor Corporation. FACT® and FACT Quiet Series® are registered trademarks of Fairchild Semiconductor Corporation. DS100357-1 IEEE/IEC DS100357-2 September 1998 © 1998 National Semiconductor Corporation DS100357 www.national.com |
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