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参数资料
| 型号： | SN54LS147J |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 算术逻辑单元 |
| 英文描述： | LS SERIES, 9-BIT ENCODER, CDIP16 |
| 文件页数： | 9/10页 |
| 文件大小： | 336K |
| 代理商： | SN54LS147J |
Product Folder: SN74LS148, 8-line to 3-line priority encoder
PRODUCT SUPPORT: TRAINING
SN74LS148, 8-line to 3-line priority encoder
DEVICE STATUS: ACTIVE
PARAMETER NAME SN54LS148 SN74LS148
Voltage Nodes (V) 5
5
Vcc range (V)
4.5 to 5.5
4.75 to 5.25
Input Level
TTL
Output Level
TTL
Output Drive (mA)
-0.4/8
Output
2S
From
8
To
3
FEATURES
q
'147, 'LS147
r
Encodes 10-Line Decimal to 4-Line BCD
r
Applications Include:
- Keyboard Encoding
- Range Selection
q
'148, 'LS148
r
Encodes 8 Data Lines to 3-Line Binary (Octal)
r
Applications Include:
- N-Bit Encoding
- Code Converters and Generators
DESCRIPTION
These TTL encoders feature priority decoding of the inputs to ensure that only the highest-order data line is encoded. The '147 and 'LS147 encode nine data lines to four-line (8-4-2-1) BCD. The
implied decimal zero condition requires no input condition as zero is encoded when all nine data lines are at a high logic level. The '148 and 'LS148 encode eight data lines to three-line (4-2-1)
binary (octal). Cascading circuitry (enable input E1 and enable output E0) has been provided to allow octal expansion without the need for external circuitry. For all types, data inputs and outputs
are active at the low logic level. All inputs are buffered to represent one normalized Series 54/74 or 54LS/74LS load, respectively.
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/sn74ls148.html (1 of 3) [Oct-04-2002 5:43:56 PM]
相关PDF资料 |
PDF描述 |
|---|---|
| SN74LS147D | LS SERIES, 9-BIT ENCODER, PDSO16 |
| SN54LS153JD | LS SERIES, DUAL 4 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, CDIP16 |
| SN54LS156W | LS SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, CDFP16 |
| SN54156W | TTL/H/L SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, CDFP16 |
| SNJ54156W | TTL/H/L SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, CDFP16 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SN54LS148J | 制造商:Texas Instruments 功能描述:Encoder 8-to-3 Priority Bipolar 16-Pin CDIP Tube 制造商:Texas Instruments 功能描述:ENCODER 8-TO-3 PRIORITY BIPOLAR 16CDIP - Rail/Tube |
| SN54LS14J | 制造商:Texas Instruments 功能描述:Inverter Schmitt Trigger 6-Element Bipolar 14-Pin CDIP Tube 制造商:Texas Instruments 功能描述:INVERTER SCHMITT TRIGGER 6-ELEM BIPOLAR 14CDIP - Rail/Tube 制造商:Texas Instruments 功能描述:HEX SCHMITT TRIGGERS |
| SN54LS151J | 制造商:Texas Instruments 功能描述:Multiplexer 1-Element Bipolar 8-IN 16-Pin CDIP Tube 制造商:Texas Instruments 功能描述:MLTPLXR 1-ELEM BIPOLAR 8-IN 16CDIP - Rail/Tube |
| SN54LS153J | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: 制造商:Texas Instruments 功能描述:DUAL 4-TO-1 MULTIPLEXER - Rail/Tube 制造商:Texas Instruments 功能描述:Multiplexer 1-Element Bipolar Totem-Pole 8-IN 16-Pin CDIP Tube |
| SN54LS155AJ | 制造商:Texas Instruments 功能描述:Decoder/Demultiplexer Single/Dual 3/2-to-8/4 16-Pin CDIP Tube 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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