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參數(shù)資料
| 型號(hào)： | SN74AS298ANSRG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 編、解碼器及復(fù)用、解復(fù)用 |
| 英文描述： | AS SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO16 |
| 封裝： | GREEN, PLASTIC, SOP-16 |
| 文件頁數(shù)： | 9/14頁 |
| 文件大?。?/td> | 516K |
| 代理商： | SN74AS298ANSRG4 |
SN74AS298A
QUADRUPLE 2INPUT MULTIPLEXER
WITH STORAGE
SDAS219B DECEMBER 1983 REVISED DECEMBER 1994
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature, CL = 50 pF (unless otherwise noted) (see Figure 3)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
MIN
MAX
UNIT
fmax
62
MHz
tPLH
CLK
Q
2
9
ns
tPHL
CLK
Q
1
11
ns
APPLICATION INFORMATION
This versatile multiplexer can be connected to operate as a shift register that can shift n places in a single clock pulse.
Figure 1 illustrates a BCD shift register that shifts an entire 4-bit BCD digit in one clock pulse.
1, 2D
SN74AS298A
Digit 1
Digit 2
Digit 3
Parallel Load
WS
CLK
A1
A2
B1
B2
C1
C2
D1
D2
A1
A2
B1
B2
C1
C2
D1
D2
A1
A2
B1
B2
C1
C2
D1
D2
G1
C2
G1
C2
G1
C2
MUX
QA
QB
QC
QD
QA
QB
QC
QD
QA
QB
QC
QD
SN74AS298A
Figure 1. BCD Shift Register
When WS is high and the registers are clocked, the content of register 1 is transferred (shifted) to register 2, etc.,
effectively shifting the BCD digits one position. This application also retains a parallel-load capability, which means
that new BCD data can be entered into the entire register with one clock pulse. This arrangement can be modified
to perform the shifting of binary data for any number of bit locations.
Another function that can be implemented is a register designed specifically for supporting multiplier or division
operations (see Figure 2).
When WS is low and the register is clocked, the outputs of the arithmetic / logic units (ALUs) are shifted one place.
When WS is high and the registers are clocked, the data is shifted two places.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN74AS298DR | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN74AS30D | 功能描述:邏輯門 8-Input Positive NAND gates RoHS:否 制造商:Texas Instruments 產(chǎn)品:OR 邏輯系列:LVC 柵極數(shù)量:2 線路數(shù)量（輸入/輸出）:2 / 1 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 傳播延遲時(shí)間:3.8 ns 電源電壓-最大:5.5 V 電源電壓-最小:1.65 V 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DCU-8 封裝:Reel |
| SN74AS30DBR | 功能描述:邏輯門 8-Input Positive NAND gates RoHS:否 制造商:Texas Instruments 產(chǎn)品:OR 邏輯系列:LVC 柵極數(shù)量:2 線路數(shù)量（輸入/輸出）:2 / 1 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 傳播延遲時(shí)間:3.8 ns 電源電壓-最大:5.5 V 電源電壓-最小:1.65 V 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DCU-8 封裝:Reel |
| SN74AS30DBRE4 | 功能描述:邏輯門 8-Input Positive NAND gates RoHS:否 制造商:Texas Instruments 產(chǎn)品:OR 邏輯系列:LVC 柵極數(shù)量:2 線路數(shù)量（輸入/輸出）:2 / 1 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 傳播延遲時(shí)間:3.8 ns 電源電壓-最大:5.5 V 電源電壓-最小:1.65 V 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DCU-8 封裝:Reel |
| SN74AS30DBRG4 | 功能描述:邏輯門 8-Inp Pos-NAND Gates RoHS:否 制造商:Texas Instruments 產(chǎn)品:OR 邏輯系列:LVC 柵極數(shù)量:2 線路數(shù)量（輸入/輸出）:2 / 1 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 傳播延遲時(shí)間:3.8 ns 電源電壓-最大:5.5 V 電源電壓-最小:1.65 V 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DCU-8 封裝:Reel |
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