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參數資料
| 型號： | HD74ALVCH162374 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Quadruple 1-Of-2 Data Selectors/Multiplexers 16-CFP -55 to 125 |
| 中文描述： | 16位邊沿觸發D型人字拖與三態輸出 |
| 文件頁數： | 1/12頁 |
| 文件大?。?/td> | 55K |
| 代理商： | HD74ALVCH162374 |
HD74ALVCH162374
16-bit Edge triggered D-type Flip Flops with 3-state Outputs
ADE-205-180B (Z)
Preliminary
3rd. Edition
October 1997
Description
The HD74ALVCH162374 is particularly suitable for implementing buffer registers, I/O ports, bidirectional
bus drivers, and working registers. It can be used as two 8-bit flip flops or one 16-bit flip flop. On the
positive transition of the clock (CLK) input, the Q outputs of the flip flop take on the logic levels set up at
the data (D) inputs.
The output enable (
OE
) input can be used to place the eight outputs in either a normal logic state (high or
low logic levels) or a high impedance state. In the high impedance state, the outputs neither load nor drive
the bus lines significantly. The high impedance state and the increased drive provide the capability to drive
bus lines without need for interface or pullup components.
OE
does not affect internal operations of the
flip flops. Old data can be retained or new data can be entered while the outputs are in the high impedance
state.
Active bus hold circuitry is provided to hold unused or floating data inputs at a valid logic level. All
outputs, which are designed to sink up to 12 mA, include 26
resistors to reduce overshoot and
undershoot.
Features
V
CC
= 2.3 V to 3.6 V
Typical V
OL
ground bounce < 0.8 V (@V
CC
= 3.3 V, Ta = 25°C)
Typical V
OH
undershoot > 2.0 V (@V
CC
= 3.3 V, Ta = 25°C)
High output current ±12 mA (@V
CC
= 3.0 V)
Bus hold on data inputs eliminates the need for external pullup / pulldown resistors
All outputs have equivalent 26
series resistors, so no external resistors are required.
相關PDF資料 |
PDF描述 |
|---|---|
| HD74ALVCH16244 | Quadruple 1-Of-2 Data Selectors/Multiplexers 16-CDIP -55 to 125 |
| HD74ALVCH16245 | 16-bit Bus Transceivers with 3-state Outputs(三態輸出的16位總線收發器) |
| HD74ALVCH162500 | 18-bit Universal Bus Transceivers with 3-state Outputs(三態輸出的18位通用總線收發器) |
| HD74ALVCH162501 | 18-bit Universal Bus Transceivers with 3-state Outputs(三態輸出的18位通用總線收發器) |
| HD74ALVCH162543 | 16-bit Registered Transceivers with 3-state Outputs(三態輸出的16位寄存收發器) |
相關代理商/技術參數 |
參數描述 |
|---|---|
| HD74ALVCH16244 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:16-bit Buffers / Drivers with 3-state Outputs |
| HD74ALVCH16244-T(48P) | 制造商:Renesas Electronics Corporation 功能描述: |
| HD74ALVCH16245 | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:6-bit Bus Transceivers with 3-state Outputs |
| HD74ALVCH16245-TE-E | 制造商:Renesas Electronics Corporation 功能描述: |
| HD74ALVCH162500 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:18-bit Universal Bus Transceivers with 3-state Outputs |
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