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參數(shù)資料
| 型號： | HD74AC |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | HD74AC Series Common Information |
| 中文描述： | HD74AC系列通用信息 |
| 文件頁數(shù)： | 34/52頁 |
| 文件大?。?/td> | 220K |
| 代理商： | HD74AC |
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Design Considerations
33
ECL devices cannot directly drive FACT devices. Interfacing FACT-to-ECL can be accomplished by
using TTL-to-ECL translators and 10125 ECL-to-TTL translators in addition to following the same rules
on the TTL outputs to CMOS inputs (i.e., a resistor pull-up to V
CC
of approximately 4.7 k
). The
translation can also be accomplished by a resistive network. A three-resistor interface between FACT and
ECL logic is illustrated in figure 4. Figures 5 and 6 show the translation from ECL-to-FACT, which is
somewhat more complicated. These two examples offer some possible interfaces between ECL and FACT
logic.
AC/ACT
+5V
560
510
–5.2V
470
Figure 4 Resistive FACT-to-ECL Translation
270
510
T1
T2
D2
D1
5.0V
510
Vbb
AC
ECL
T1,T2 - 2SC641 (K)
D1,D2 - HP5082 - 2811
–5.2V
Figure 5 Single-Ended ECL-to-HD74AC Circuit
相關PDF資料 |
PDF描述 |
|---|---|
| HD74ALVC162244 | 16-bit Buffer / Driver with 3-state Outputs(帶三態(tài)輸出的16位緩沖器/驅(qū)動器) |
| HD74ALVC162334 | 16-bit Universal Bus Driver with 3-state Outputs(帶三態(tài)輸出的16位通用總線驅(qū)動器) |
| HD74ALVC16244 | 16-bit Buffer / Driver with 3-state Outputs(帶三態(tài)輸出的16位緩沖器/驅(qū)動器) |
| HD74ALVC162831 | 1-bit to 4-bit Address Register / Driver with 3-state Outputs(三態(tài)輸出的1位-4位地址寄存器/驅(qū)動器) |
| HD74ALVC162834A | 1-Of-8 Data Selectors/Multiplexers 16-CDIP -55 to 125 |
相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD74AC00 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Quad 2-Input NAND Gate |
| HD74AC00FP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Quad 2-input NAND Gate |
| HD74AC00FPEL | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Quad 2-Input NAND Gate |
| HD74AC00P | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Quad 2-Input NAND Gate |
| HD74AC00RPEL | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Quad 2-Input NAND Gate |
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