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IC 74LS148 8 To 3 Line Priority Encoder

IC 74LS148 8 To 3 Line Priority Encoder

The 74LS148 IC offers a versatile solution with its wide working voltage range and compatibility with CMOS, NMOS, and TTL interfaces. The output consistently adheres to TTL standards, facilitating seamless integration with other TTL devices and microcontrollers. Equipped with a built-in Schottky barrier diode, the 74LS148 ensures high-speed processing. Its standout feature is priority decoding, guaranteeing that only the highest-order data line is encoded. In scenarios where multiple inputs are active simultaneously, the input with the highest priority takes precedence.
8.30 AED 8.30 AED Tax Included
8.30 AED Tax Included

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Specifications:

  • Technology Family: LS
  • Rating: Catalog
  • Supply Voltage: 4.75V to 5.5V
  • Frequency at Nominal Voltage: 35 MHz
  • Typical Propagation Delay: 21nS
  • Low Power Consumption: 32mW
  • ESD Protection
  • Operating Temperature: 0ºC to 70ºC
  • ESD CDM (kV): 0.75
  • ESD HBM (kV): 2
  • Balanced Propagation Delays
  • Designed Specifically for High Speed
  • IOL (Max): 8mA
  • IOH (Max): -0.4mA
  • Bits (#): 3
  • Configuration: 8:3
  • Product Type: Standard

74LS148 Pinout:

Pin No Pin Name Description
1 4 Octal Input Pin 1
2 5 Octal Input Pin 2
3 6 Octal Input Pin 3
4 7 Octal Input Pin 4
5 E1 Active Low Enable Pin
6 A2 Binary Output Pin A2
7 A1 Binary Output Pin A1
8 GND Ground
9 A0 Binary Output Pin A0
10 0 Octal Input Pin 10
11 1 Octal Input Pin 11
12 2 Octal Input Pin 12
13 3 Octal Input Pin 13
14 GS Gray Output Pin GS
15 EO Gray Output Pin EO
16 Vcc Chip Supply Voltage

Applications:

  • Control of interrupt requests by acting on the highest priority request.
  • Encoding the output of a flash analog-to-digital converter.