具有时钟使能端的八路 D 型触发器
| Number of channels (#) | 8 |
| Technology Family | HCT |
| Supply voltage (Min) (V) | 4.5 |
| Supply voltage (Max) (V) | 5.5 |
| Input type | TTL-Compatible CMOS |
| Output type | Push-Pull |
| Clock Frequency (Max) (MHz) | 35 |
| IOL (Max) (mA) | 4 |
| IOH (Max) (mA) | -4 |
| ICC (Max) (uA) | 80 |
| Features | Balanced outputs, High speed (tpd 10-50ns), Positive input clamp diode |
- Operating Voltage Range of 4.5 V to 5.5 V
- Outputs Can Drive Up To 10 LSTTL Loads
- Low Power Consumption, 80-&miccro;A Max ICC
- Typical tpd = 12 ns
- ±4-mA Output Drive at 5 V
- Low Input Current of 1 μA Max
- Inputs Are TTL-Voltage Compatible
- Contain Eight Flip-Flops With Single-Rail Outputs
- Clock Enable Latched to Avoid False Clocking
- Applications Include:
- Buffer/Storage Registers
- Shift Registers
- Pattern Generators
These devices are positive-edge-triggered D-type flip-flops. The ?HCT377 devices are similar to the ?'HCT273 devices, but feature a latched clock-enable (CLKEN)\ input instead of a common clear.
Information at the data (D) inputs meeting the setup time requirements is transferred to the Q outputs on the positive-going edge of the clock (CLK) pulse if CLKEN\ is low. Clock triggering occurs at a particular voltage level and is not directly related to the transition time of the positive-going pulse. When CLK is at either the high or low level, the D input has no effect at the output. These devices are designed to prevent false clocking by transitions at CLKEN\.
