- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄370132 > 74LVT16652 (National Semiconductor Corporation) 3.3V ABT 16-Bit Transceiver/Register with TRI-STATE Outputs PDF資料下載
參數(shù)資料
| 型號： | 74LVT16652 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | 3.3V ABT 16-Bit Transceiver/Register with TRI-STATE Outputs |
| 中文描述： | 3.3生根粉16位收發(fā)器/注冊的三態(tài)輸出 |
| 文件頁數(shù)： | 3/7頁 |
| 文件大?。?/td> | 125K |
| 代理商： | 74LVT16652 |
Functional Description
In the transceiver mode, data present at the HIGH imped-
ance port may be stored in either the A or B register or both.
The select (SAB
n
, SBA
n
) controls can multiplex stored and
real-time.
The examples inFigure 1 demonstrate the four fundamental
bus-management functions that can be performed with the
LVT16652.
Data on the A or B data bus, or both can be stored in the
internal D flip-flop by LOW to HIGH transitions at the appro-
priate Clock Inputs (CPAB
n
, CPBA
n
) regardless of the Se-
lect or Output Enable Inputs. When SAB and SBA are in the
real time transfer mode, it is also possible to store data
without using the internal D flip-flops by simultaneously en-
abling OEAB
n
and OEBA
n
. In this configuration each Output
reinforces its Input. Thus when all other data sources to the
two sets of bus lines are in a HIGH impedance state, each
set of bus lines will remain at its last state.
Real-Time Transfer
Bus B to Bus A
TL/F/12024–4
OEAB
1
OEBA
1
CPAB
1
CPBA
1
SAB
1
SBA
1
L
L
X
X
X
L
Real-Time Transfer
Bus A to Bus B
TL/F/12024–5
OEAB
1
OEBA
1
CPAB
1
CPBA
1
SAB
1
SBA
1
H
H
X
X
L
X
Storage
TL/F/12024–6
OEAB
1
OEBA
1
CPAB
1
CPBA
1
SAB
1
SBA
1
L
X
H
X
X
X
L
X
X
L
X
X
L
H
L
L
X
X
Transfer Storage
Data to A or B
TL/F/12024–7
OEAB
1
OEBA
1
CPAB
1
CPBA
1
SAB
1
SBA
1
H
L
H or L
H or L
H
H
FIGURE 1
Truth Table
(Note)
Inputs
Inputs/Outputs
Operating Mode
OEAB
1
OEBA
1
CPAB
1
CPBA
1
SAB
1
SBA
1
A
0
thru A
7
B
0
thru B
7
L
H
H or L
H or L
X
X
Input
Input
Isolation
L
H
L
L
L
L
X
X
Store A and B Data
X
H
H or L
X
X
Input
Not Specified
Store A, Hold B
H
H
L
L
L
X
X
Input
Output
Store A in Both Registers
L
X
H or L
X
X
Not Specified
Input
Hold A, Store B
L
L
L
X
X
Output
Input
Store B in Both Registers
L
L
X
X
X
L
Output
Input
Real-Time B Data to A Bus
L
L
X
H or L
X
H
Store B Data to A Bus
H
H
X
X
L
X
Input
Output
Real-Time A Data to B Bus
H
H
H or L
X
H
X
Stored A Data to B Bus
H
L
H or L
H or L
H
H
Output
Output
Stored A Data to B Bus and
Stored B Data to A Bus
H
e
HIGH Voltage Level
L
e
LOW Voltage Level
X
e
Immaterial
L
e
LOW to HIGH Clock Transition
Note:
The data output functions may be enabled or disabled by various signals at OEAB or OEBA inputs. Data input functions are always enabled, i.e., data at the
bus pins will be stored on every LOW to HIGH transition on the clock inputs. This also applies to data I/O (A and B: 8–15) and
Y
2 control pins.
http://www.national.com
3
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 74LVT16652MEA | 3.3V ABT 16-Bit Transceiver/Register with TRI-STATE Outputs |
| 74LVT16652MEAX | 3.3V ABT 16-Bit Transceiver/Register with TRI-STATE Outputs |
| 74LVT16652MTD | 3.3V ABT 16-Bit Transceiver/Register with TRI-STATE Outputs |
| 74LVT16652MTDX | 3.3V ABT 16-Bit Transceiver/Register with TRI-STATE Outputs |
| 74LVX3L384 | 10-Bit Low Power Bus Switch |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74LVT16652ADG | 功能描述:總線收發(fā)器 3.3V 16-BIT REG XCVR 3S RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
| 74LVT16652ADGG,112 | 功能描述:總線收發(fā)器 3.3V 16-BIT REG RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
| 74LVT16652ADGG,118 | 功能描述:總線收發(fā)器 3.3V 16-BIT REG RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
| 74LVT16652ADG-T | 功能描述:總線收發(fā)器 3.3V 16-BIT REG XCVR 3S RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
| 74LVT16652ADL | 功能描述:總線收發(fā)器 3.3V 16-BIT BUS XCVR 3-S RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。