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Part Name(s) : 74LS147 SN74LS147 SN74LS147D SN74LS147N SN74LS148 SN74LS148D SN74LS148DR2 SN74LS148M SN74LS148MEL SN74LS148ML1 SN74LS148ML2 SN74LS148N ON-Semiconductor
ON Semiconductor
Description : 10-LINE TO 4-LINE AND 8-LINE TO 3-LINE PRIORITY ENCODEERS View

The SN74LS147 AND the SN74LS148 are PRIORITY Encoders. They provide PRIORITY decoding of the inputs TO ensure that only the highest order data line is encoded. Both devices have data inputs AND outputs which are active at the low logic level.

 

Part Name(s) : SN54LS147 SN54LS147J SN54LS148 SN54LS148J SN54LS74 SN54LS748 SN54LS748J SN74LS147 SN74LS147D SN74LS147N SN74LS148 SN74LS148D SN74LS148N SN74LS748 SN74LS748D SN74LS748N Motorola
Motorola => Freescale
Description : 10-LINE-TO-4-LINE AND 8-LINE-TO-3-LINE PRIORITY ENCODERS LOW POWER SCHOTTKY View

10-LINE-TO-4-LINE AND 8-LINE-TO-3-LINE PRIORITY ENCODERS

The SN54/74LS147 AND the SN54/74LS148 are PRIORITY Encoders. They provide PRIORITY decoding of the inputs TO ensure that only the highest order dataline is encoded.Both devices have data inputs AND outputs which are active at the low logic level.
TheLS147 encodes nine data lines TO four-line (8-4-2-1) BCD. The implied decimalzero condition does not require an input condition because zero is encoded when all nine data lines are at a high logic level.
TheLS148 encodes eight data lines TO three-line (4-2-1)binary (octal). By providingcascading circuitry (Enable Input EI AND Enable Output EO) octal expansion is allowed without needing external circuitry.

 

 

Part Name(s) : 54147 54LS147 54LS148 74147 74LS147 74LS148 78027012A 7802701EA 7802701FA JM38510/36001B2A JM38510/36001BEA JM38510/36001BFA LS148 M38510/36001B2A M38510/36001BEA M38510/36001BFA SN54147 SN54148 SN54148J SN54LS147 SN54LS148 SN54LS148FK SN54LS148J SN54LS148W SN74147 TI
Texas Instruments
Description : 10-LINE TO 4-LINE AND 8-LINE TO 3-LINE PRIORITY ENCODEERS View

description/ordering information
These TTL encoders feature PRIORITY decoding of the inputs TO ensure that only the highest-order data line is encoded. The ’147 AND ’LS147 devices 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 devices encode eight data lines TO three-line (4-2-1) binary (octal). Cascading circuitry (enable input EI AND enable output EO) 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 54/74LS load, respectively.

’147, ’LS147
● Encode 10-LINE Decimal TO 4-LINE BCD
● Applications Include:
   − Keyboard Encoding
   − Range Selection

’148, ’LS148
● Encode 8 Data Lines TO 3-LINE Binary
   (Octal)
● Applications Include:
   − n-Bit Encoding
   − Code Converters AND GeneraTOrs

Part Name(s) : LS348 SN54LS348 SN74LS348 SN74LS348D SN74LS348N TIM9908 SN54LS348J SN54LS348W SN54LS348FK Texas-Instruments
Texas Instruments
Description : 8-LINE TO 3-LINE PRIORITY ENCODERS WITH 3-STATE OUTPUTS View

8-LINE TO 3-LINE PRIORITY ENCODERS WITH 3-STATE OUTPUTS


Part Name(s) : CD4014 CD40147BE CD40147BEE4 CD40147BM CD40147BM96 CD40147BM96E4 CD40147BME4 CD40147BMS CD40147BMT CD40147BMTE4 CD40147BNSR CD40147BNSRE4 CD40147BPW CD40147BPWE4 CD40147BPWR CD40147BPWRE4 Intersil
Intersil
Description : 10 Line TO 4 Line BCD PRIORITY Encoder View

Description
CD40147BMS CMOS encoder features PRIORITY encoding of the inputs TO ensure that only the highest order data line is encoded. Ten data input lines (0-9) are encoded TO four line (8,4, 2, 1) BCD. The highest PRIORITY line is line 9. All four output lines are logic 1 (VSS) when all input lines are logic 0. All inputs AND outputs are buffered, AND each output can drive one TTL low power Schottky load. The CD40147BMS is func tionally similar TO the TTL 54/74147 if pin 15 is tied low.

Features
• High Voltage Type (20V Rating)
• Encodes 10 Line TO 4 Line BCD
• Active Low Inputs AND Outputs
• 100% Tested for Quiescent Current at 20V
• 5V, 10V AND 15V Parametric Ratings
• Maximum Input Current of 1µA at 18V Over Full Pack age Temperature Range; 100nA at 18V AND +25oC
• Noise Margin (Over Full Package/Temperature Range) - 1V at VDD = 5V - 2V at VDD = 10V - 2.5V at VDD = 15V
• StANDardized Symmetrical Output Characteristics
• Meets All Requirements of JEDEC Tentative StANDard No. 13B, “StANDard Specifications for Description of ‘B’ Series CMOS Devices”

Applications
• Keyboard Encoding
• 10 Line TO BCD Encoding
• Range Selection

Part Name(s) : JM38510/36002B2A JM38510/36002BEA SN54LS348 SN54LS348J SN54LS348W SN54LS348FK SN74LS348 SN74LS348D SN74LS348DE4 SN74LS348DG4 SN74LS348DR SN74LS348DRE4 SN74LS348DRG4 SN74LS348N SN74LS348N3 SN74LS348NE4 SN74LS348NSR SN74LS348NSRE4 SN74LS348NSRG4 SNJ54LS348FK SNJ54LS348J SNJ54LS348W TIM9908 TI
Texas Instruments
Description : 8-LINE TO 3-LINE PRIORITY ENCODERS WITH 3-STATE OUTPUTS View

8-LINE TO 3-LINE PRIORITY ENCODERS WITH 3-STATE OUTPUTS

Part Name(s) : HCC40147B HCF40147B HCC40147BF HCF40147BM1 HCF40147BEY HCF40147BC1 ST-Microelectronics
STMicroelectronics
Description : 10 TO 4 LINE BCD PRIORITY ENCODER View

DESCRIPTION
The HCC/HCF40147B CMOS encoder features PRIORITY encoding of the inputs TO ensure that only the highest order data line is encoded. Ten data input lines (0-9) are encoded TO four line (8, 4, 2, 1) BCD. The highest PRIORITY line is line 9. All four output lines are logic 1 (VSS) when all input lines are logic 0. All inputs AND outputs are buffered, AND each output can drive one TTL Low Power Schottky load. The HCC/HCFF40147 is functionally similar TO the T54/T74LS147 if pin 15 is tied low.

■ ENCODES 10 LINE TO 4 LINE BCD
■ ACTIVE LOW INPUTS AND OUTPUTS
■ STANDARDIZED, SYMMETRICAL OUTPUT CHARACTERIZATION
■ 100 % TESTED FOR QUIESCENT CURRENT AT 20 V
■ 5V, 10V AND 15V PARAMETRIC RATINGS
■ MAXIMUM INPUT CURREENT OF 1 µA AT 18V OVER FULL PACKAGE TEMPERATURE RANGE; 100 nA AT 18 V AND 25 oC
■ NOISE MARGIN (FULL PACKAGE TEMPERATURE RANGE): 1V AT VDD = 5V, 2V AT VDD = 10V, 2.5V AT VDD = 15V

APPLICATIONS:
■ KEYBOARD ENCODING
■ 10 LINE TO BCD ENCODING
■ RANGE SELECTION

Part Name(s) : SN5442A SN5442AJ SN5442AW SN54LS42 SN54LS42J SN54LS42W SN7442A SN7442AN SN74LS42 SN74LS42D SN74LS42N SN74LS42NSR SN74LS42NSRE4 SN74LS42NSRG4 SN74LS42DR TI
Texas Instruments
Description : 4-LINE BCD TO 10-LINE DECIMAL DECODERS View

4-LINE BCD TO 10-LINE DECIMAL DECODERS

Part Name(s) : HD74LS139 HD74LS139FP HD74LS139P HD74LS139RP HD74LS139FPEL HD74LS139RPEL Renesas
Renesas Electronics
Description : Dual 2-line-TO-4-LINE Decoders / Demultiplexers View

The HD74LS139 comprises two individual two-line-TO-four-line decoder in a single package. The active-low enable input can be used as a data line in demultiplexing applications.

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