具有三态输出的 18 位总线接口触发器 56-SSOP -40 to 85
This 18-bit bus-interface flip-flop is designed for 1.65-V to 3.6-V VCC operation.
The SN74ALVCH16823 features 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. This device is particularly suitable for implementing wider buffer registers, I/O ports, bidirectional bus drivers with parity, and working registers.
The SN74ALVCH16823 can be used as two 9-bit flip-flops or one 18-bit flip-flop. With the clock-enable CLKEN input low, the D-type flip-flops enter data on the low-to-high transitions of the clock. Taking CLKEN high disables the clock buffer, thus latching the outputs. Taking the clear CLR input low causes the Q outputs to go low independently of the clock.
A buffered output-enable OE input can be used to place the nine 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 need for interface or pullup components.
The output-enable OE input does not affect the internal operation of the flip-flops. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.
To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.
The SN74ALVCH16823 is characterized for operation from -40°C to 85°C.
频率 150 MHz
电源电压DC 1.65V ~ 3.60V
输出接口数 9
输出电流 24.0 mA
电路数 2
通道数 18
时钟频率 150 MHz
位数 18
传送延迟时间 4.50 ns
电压波节 3.30 V, 2.70 V, 2.50 V, 1.80 V
输入电容 4.5 pF
输出电流驱动 -1.00 mA
输入数 9
工作温度Max 85 ℃
工作温度Min -40 ℃
电源电压 1.65V ~ 3.6V
电源电压Max 3.6 V
电源电压Min 1.65 V
安装方式 Surface Mount
引脚数 56
封装 SSOP-56
宽度 7.49 mm
封装 SSOP-56
工作温度 -40℃ ~ 85℃
产品生命周期 Active
包装方式 Tape & Reel TR
RoHS标准 RoHS Compliant
含铅标准 Lead Free
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
SN74ALVCH16823DLR TI 德州仪器 | 当前型号 | 当前型号 |
SN74ALVCH16823DL 德州仪器 | 类似代替 | SN74ALVCH16823DLR和SN74ALVCH16823DL的区别 |
SN74ALVCH16825DGGR 德州仪器 | 类似代替 | SN74ALVCH16823DLR和SN74ALVCH16825DGGR的区别 |
74ALVCH16823DLRG4 德州仪器 | 类似代替 | SN74ALVCH16823DLR和74ALVCH16823DLRG4的区别 |