SN74HC374N

TEXAS INSTRUMENTS  SN74HC374N  触发器, 三态非反相, 正沿, D, 19 ns, 70 MHz, 7.8 mA, DIP, 20 引脚

The is an octal edge-triggered D-type Flip-flop with 3-state outputs. It is designed specifically for driving highly capacitive or relatively low-impedance loads. It is particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers and working registers. The eight flip-flops of the \x92HC374 devices are edge-triggered D-type flip-flops. On the positive transition of the clock CLK input, the Q outputs are set to the logic levels that were set up at the data D inputs. An output-enable OE input places the eight outputs in either a normal logic state high or low logic levels or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without interface or pull-up components.

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High-current 3-state true outputs can drive up to 15 LSTTL loads

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Full parallel access for loading

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80µA Maximum low power consumption

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14ns Typical tpd

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±6mA Output drive at 5V

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1µA Maximum low input current

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±35mA Continuous output current

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±70mA Continuous current through VCC or GND