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參數資料
| 型號： | SN74ALS667NSR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 總線收發器 |
| 英文描述： | ALS SERIES, 8-BIT DRIVER, TRUE OUTPUT, PDSO24 |
| 封裝： | GREEN, PLASTIC, SOP-24 |
| 文件頁數： | 1/15頁 |
| 文件大小： | 524K |
| 代理商： | SN74ALS667NSR |
SN74ALS666, SN74ALS667
8-BIT D-TYPE TRANSPARENT READ-BACK LATCHES
WITH 3-STATE OUTPUTS
SDAS227A – JUNE 1984 – REVISED JANUARY 1995
Copyright
1995, Texas Instruments Incorporated
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
3-State I/O-Type Read-Back Inputs
Bus-Structured Pinout
Choice of True or Inverting Logic
– SN74ALS666...True Outputs
– SN74ALS667... Inverted Outputs
Preset and Clear Inputs
Package Options Include Plastic
Small-Outline (DW) Packages and Standard
Plastic (NT) 300-mil DIPs
description
These 8-bit D-type transparent latches are
designed specifically for storing the contents of
the input data bus, plus reading back the stored
data onto the input data bus. In addition, they
provide a 3-state buffer-type output and are easily
utilized in bus-structured applications.
While the latch enable (LE) is high, the Q outputs
of the SN74ALS666 follow the data (D) inputs. The
Q outputs of the SN74ALS667 provide the inverse
of the data applied to its D inputs. The Q or
Q output of both devices is in the high-impedance
state if either output-enable (OE1 or OE2) input is
at a high logic level.
Read back is provided through the read-back
control (OERB) input. When OERB is taken low,
the data present at the output of the data latches
passes back onto the input data bus. When OERB
is taken high, the output of the data latches is
isolated from the D inputs. OERB does not affect
the internal operation of the latches; however,
caution should be exercised to avoid a bus
conflict.
The
SN74ALS666
and
SN74ALS667
are
characterized for operation from 0
°C to 70°C.
SN74ALS666 ...DW OR NT PACKAGE
(TOP VIEW)
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OERB
OE1
1D
2D
3D
4D
5D
6D
7D
8D
CLR
GND
VCC
OE2
1Q
2Q
3Q
4Q
5Q
6Q
7Q
8Q
PRE
LE
SN74ALS667 . . . DW OR NT PACKAGE
(TOP VIEW)
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OERB
OE1
1D
2D
3D
4D
5D
6D
7D
8D
CLR
GND
VCC
OE2
1Q
2Q
3Q
4Q
5Q
6Q
7Q
8Q
PRE
LE
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| SN74ALS667NSRE4 | 功能描述:閉鎖 Octal DType TRANPNT Read Back 閉鎖 RoHS:否 制造商:Micrel 電路數量:1 邏輯類型:CMOS 邏輯系列:TTL 極性:Non-Inverting 輸出線路數量:9 高電平輸出電流: 低電平輸出電流: 傳播延遲時間: 電源電壓-最大:12 V 電源電壓-最小:5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-16 封裝:Reel |
| SN74ALS667NSRG4 | 功能描述:閉鎖 Octal DType TRANPNT Read Back 閉鎖 RoHS:否 制造商:Micrel 電路數量:1 邏輯類型:CMOS 邏輯系列:TTL 極性:Non-Inverting 輸出線路數量:9 高電平輸出電流: 低電平輸出電流: 傳播延遲時間: 電源電壓-最大:12 V 電源電壓-最小:5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-16 封裝:Reel |
| SN74ALS667NT | 功能描述:閉鎖 Octal DType TRANPNT Read Back 閉鎖 RoHS:否 制造商:Micrel 電路數量:1 邏輯類型:CMOS 邏輯系列:TTL 極性:Non-Inverting 輸出線路數量:9 高電平輸出電流: 低電平輸出電流: 傳播延遲時間: 電源電壓-最大:12 V 電源電壓-最小:5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-16 封裝:Reel |
| SN74ALS667NT3 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN74ALS667NTE4 | 功能描述:閉鎖 Octal DType TRANPNT Read Back 閉鎖 RoHS:否 制造商:Micrel 電路數量:1 邏輯類型:CMOS 邏輯系列:TTL 極性:Non-Inverting 輸出線路數量:9 高電平輸出電流: 低電平輸出電流: 傳播延遲時間: 電源電壓-最大:12 V 電源電壓-最小:5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-16 封裝:Reel |
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