SN74LS148D Texas Instruments - Yeehing Electronics

8-line to 3-line priority encoder

Pricing (USD)

Quantity	Unit Price
1 — 99	1.275
100 — 249	1.053
250 — 999	0.756
1,000 +	0.40

The above prices are for reference only.

Specifications

Manufacturer	Texas Instruments
Product Category	Encoders, Decoders, Multiplexers & Demultiplexers
RoHS	Y
Product	Selectors / Multiplexers
Logic Family	LS
Number of Bits	16 bit
Number of Input Lines	8 Input
Number of Output Lines	3 Output
Propagation Delay Time	19 ns
Supply Voltage - Min	4.75 V
Supply Voltage - Max	5.25 V
Minimum Operating Temperature	0 C
Maximum Operating Temperature	+ 70 C
Mounting Style	SMD/SMT
Package / Case	SOP-16
Packaging	Reel
Function	8 to 3 Priority
Height	1.58 mm
Input Voltage	- 4.75 V to + 5.25 V
Length	9.9 mm
Number of Circuits	Quad
Operating Temperature Range	0 C to + 70 C
Output Current	8 mA
Output Voltage	4.75 V to 5.25 V
Series	SN74LS148
Width	3.91 mm
Brand	Texas Instruments
Logic Type	Priority Encoder
High Level Output Current	- 0.4 mA
Low Level Output Current	8 mA
Maximum Clock Frequency	35 MHz
Operating Supply Voltage	5 V
Pd - Power Dissipation	190 mW
Product Type	Encoders, Decoders, Multiplexers & Demultiplexers
Factory Pack Quantity	2500
Subcategory	Logic ICs
Unit Weight	0.004998 oz

For more information, please refer to datasheet

Documents

SN74LS148D Datasheet

More 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 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.