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参数资料
| 型号： | SN54HC139FKR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 编、解码器及复用、解复用 |
| 英文描述： | HC/UH SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, CQCC20 |
| 封装： | CERAMIC, LCC-20 |
| 文件页数： | 7/9页 |
| 文件大小： | 185K |
| 代理商： | SN54HC139FKR |
Product Folder: SN74HC139, Dual 2-Line To 4-Line Decoders/Demultiplexers
PRODUCT FOLDER | PRODUCT INFO: FEATURES | DESCRIPTION | DATASHEETS | PRICING/AVAILABILITY/PKG | SAMPLES
PRODUCT SUPPORT: TRAINING
SN74HC139, Dual 2-Line To 4-Line Decoders/Demultiplexers
DEVICE STATUS: ACTIVE
PARAMETER NAME SN54HC139 SN74HC139
Voltage Nodes (V) 6, 5, 2
6, 5, 2
Vcc range (V)
2.0 to 6.0
Input Level
CMOS
Output Level
CMOS
Output Drive (mA)
-4/4
Output
2S
From
2
To
4
FEATURES
q
Designed Specifically for High-Speed Memory Decoders and Data Transmission Systems
q
Incorporate Two Enable Inputs to Simplify Cascading and/or Data Reception
q
Package Options Include Plastic Small-Outline (D), Thin Shrink Small-Outline (PW), and Ceramic Flat (W) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-
mil DIPs
DESCRIPTION
The 'HC139 are designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders
can minimize the effects of system decoding. When employed with high-speed memories utilizing a fast enable circuit, the delay time of these decoders and the enable time of the memory are
usually less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible.
The 'HC139 comprise two individual 2-line to 4-line decoders in a single package. The active-low enable (G\) input can be used as a data line in demultiplexing applications. These
decoders/demultiplexers feature fully buffered inputs, each of which represents only one normalized load to its driving circuit.
The SN54HC139 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74HC139 is characterized for operation from -40°C to 85°C.
TECHNICAL DOCUMENTS
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DATASHEET
APPLICATION NOTES
View Application Notes for Digital Logic
file:///H|/imaging/BITTING/cpl/20020930_1/09272002_10/TXII/09272002_HTML/sn74hc139.html (1 of 3) [Oct-04-2002 9:58:38 AM]
相关PDF资料 |
PDF描述 |
|---|---|
| SN54HC139WR | HC/UH SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, CDFP16 |
| SN54HC139FK | HC/UH SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, CQCC20 |
| SN54HC14J-00 | HC/UH SERIES, HEX 1-INPUT INVERT GATE, CDIP14 |
| SN74HC14DR-00 | HC/UH SERIES, HEX 1-INPUT INVERT GATE, PDSO14 |
| SN54HC14WR | HC/UH SERIES, HEX 1-INPUT INVERT GATE, CDFP14 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SN54HC139J | 制造商:Texas Instruments 功能描述:Decoder/Demultiplexer Dual 2-to-4 16-Pin CDIP Tube 制造商:Texas Instruments 功能描述:DECODER/DEMLTPLXR DUAL 2-TO-4 16CDIP - Rail/Tube |
| SN54HC148J | 制造商:Texas Instruments 功能描述:PRIORITY ENCODER |
| SN54HC14J | 制造商:Texas Instruments 功能描述:Inverter Schmitt Trigger 6-Element CMOS 14-Pin CDIP Tube 制造商:Texas Instruments 功能描述:INVERTER SCHMITT TRIGGER 6-ELEM CMOS 14CDIP - Rail/Tube 制造商:Texas Instruments 功能描述:HEX SCHMITT-TRIGGER INVERTER 制造商:Texas Instruments 功能描述:HEX SCHMITT-TRIGGER INVERTER*NIC* |
| SN54HC151J | 制造商:Texas Instruments 功能描述:1-OF-8 DATA SELECT/MULTIPLEXER - Rail/Tube |
| SN54HC153J | 制造商:Texas Instruments 功能描述:Multiplexer 1-Element CMOS 8-IN 16-Pin CDIP Tube 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述:MLTPLXR 1-ELEM CMOS 8-IN 16CDIP - Rail/Tube |
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