SN54HC257

Name: SN54HC257
Brand: TI
SKU: SN54HC257
Price: 28.465 USD

現行

具有 3 態輸出的四路 2 線路至 1 線路數據選擇器/多工器

立即訂購

產品規格表

document-pdfAcrobat SN54HC257, SN54HC258, SN74HC257, SN74HC258 datasheet (Rev. B) (英文)

SN54HC257

現行

產品規格表

立即訂購

產品詳細資料

Technology family

HC

Function

Digital Multiplexer

Configuration

2:1

Number of channels

4

Operating temperature range (°C)

-55 to 125

Rating

Military

Technology family

HC

Function

Digital Multiplexer

Configuration

2:1

Number of channels

4

Operating temperature range (°C)

-55 to 125

Rating

Military

CDIP (J)

16

135.3552 mm² 19.56 x 6.92

LCCC (FK)

20

79.0321 mm² 8.89 x 8.89

Wide Operating Voltage Range of 2 V to 6 V
High-Current Inverting Outputs Drive up to 15 LSTTL Loads
Low Power Consumption, 80-µA Max I_CC
’HC257 ...Typical t_pd = 9 ns
’HC258 ...Typical t_pd = 12 ns
±6-mA Output Drive at 5 V
Low Input Current of 1 µA Max
Provides Bus Interface from Multiple Sources in High-Performance Systems

Wide Operating Voltage Range of 2 V to 6 V
High-Current Inverting Outputs Drive up to 15 LSTTL Loads
Low Power Consumption, 80-µA Max I_CC
’HC257 ...Typical t_pd = 9 ns
’HC258 ...Typical t_pd = 12 ns
±6-mA Output Drive at 5 V
Low Input Current of 1 µA Max
Provides Bus Interface from Multiple Sources in High-Performance Systems

These devices are designed to multiplex signals from 4-bit data sources to 4-output data lines in bus-organized systems. The 3-state outputs do not load the data lines when the output-enable (G\) input is at a high logic level.

To ensure the high-impedance state during power up or power down, (G\) should be tied to V_CC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

These devices are designed to multiplex signals from 4-bit data sources to 4-output data lines in bus-organized systems. The 3-state outputs do not load the data lines when the output-enable (G\) input is at a high logic level.

To ensure the high-impedance state during power up or power down, (G\) should be tied to V_CC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

filter

尋找其它數位多工器與編碼器

下載觀看有字幕稿的影片影片

技術文件

star

=TI 所選的此產品重要文件

找不到結果。請清除您的搜尋條件，然後再試一次。

檢視所有 15

	類型	標題	日期
*	Data sheet	SN54HC257, SN54HC258, SN74HC257, SN74HC258 datasheet (Rev. B)	2003年 9月 15日
*	SMD	SN54HC257 SMD 85124012A	2016年 6月 21日
	Application note	Implications of Slow or Floating CMOS Inputs (Rev. E)	2021年 7月 26日
	Selection guide	Logic Guide (Rev. AB)	2017年 6月 12日
	Application note	Understanding and Interpreting Standard-Logic Data Sheets (Rev. C)	2015年 12月 2日
	User guide	LOGIC Pocket Data Book (Rev. B)	2007年 1月 16日
	Application note	Semiconductor Packing Material Electrostatic Discharge (ESD) Protection	2004年 7月 8日
	User guide	Signal Switch Data Book (Rev. A)	2003年 11月 14日
	Application note	TI IBIS File Creation, Validation, and Distribution Processes	2002年 8月 29日
	Application note	CMOS Power Consumption and CPD Calculation (Rev. B)	1997年 6月 1日
	Application note	Designing With Logic (Rev. C)	1997年 6月 1日
	Application note	Input and Output Characteristics of Digital Integrated Circuits	1996年 10月 1日
	Application note	Live Insertion	1996年 10月 1日
	Application note	SN54/74HCT CMOS Logic Family Applications and Restrictions	1996年 5月 1日
	Application note	Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc	1996年 4月 1日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

封裝	針腳	CAD 符號、佔位空間與 3D 模型
CDIP (J)	16	Ultra Librarian
LCCC (FK)	20	Ultra Librarian

適用 TI 的評估品項標準條款與條件。

SN54HC257

具有 3 態輸出的四路 2 線路至 1 線路數據選擇器/多工器

SN54HC257

產品詳細資料

技術文件

設計與開發

訂購與品質

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

影片系列

影片