MM74HC138: 3 to 8 Line Decoder

Description: The MM74HC138 decoder utilizes advanced silicon-ga...
  • The MM74HC138 decoder utilizes advanced silicon-gate CMOS technology and is well suited to memory address decoding or data routing applications. The circuit features high noise immunity and low power consumption usually associated with CMOS circuitry, yet has speeds comparable to low power Schottky TTL logic. The MM74HC138 has 3 binary select inputs (A, B, and C). If the device is enabled, these inputs determine which one of the eight normally HIGH outputs will go LOW. Two active LOW and one active HIGH enables (G1, G2A# and G2B#) are provided to ease the cascading of decoders. The decoder's outputs can drive 10 low power Schottky TTL equivalent loads, and are functionally and pin equivalent to the 74LS138. All inputs are protected from damage due to static discharge by diodes to VCC and ground.
  • Features
  • Typical propagation delay: 20 ns
  • Wide power supply range: 2V-6V
  • Low quiescent current: 80 µA maximum (74HC Series)
  • Low input current: 1 µA maximum
  • Fanout of 10 LS-TTL loads
  • Applications
  • This product is general usage and suitable for many different applications.
  • Technical Documentation & Design Resources
    Availability and Samples
    MM74HC138M
  • Status: Active
  • Compliance: Pb-free 
  • Description: 3 to 8 Line Decoder
  • Package Type: SOIC-16
  • Package Case Outline: 751BG
  • MSL: 1
  • Container Type: TUBE
  • Container Qty: 960
  • Inventory

  • Market Leadtime (weeks):4 to 8
  • Arrow:0
  • Avnet:>1K
  • Digikey:>1K
  • Mouser:>1K
  • ON Semiconductor:33,600
  • MM74HC138MTC
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: 3 to 8 Line Decoder
  • Package Type: TSSOP-16
  • Package Case Outline: 948AH
  • MSL: 1
  • Container Type: TUBE
  • Container Qty: 2350
  • Inventory

  • Market Leadtime (weeks):4 to 8
  • Arrow:0
  • Avnet:>1K
  • Digikey:>1K
  • Mouser:>1K
  • ON Semiconductor:39,950
  • MM74HC138MTCX
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: 3 to 8 Line Decoder
  • Package Type: TSSOP-16
  • Package Case Outline: 948AH
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 2500
  • Inventory

  • Market Leadtime (weeks):4 to 8
  • Arrow:0
  • Avnet:>1K
  • Mouser:>1K
  • ON Semiconductor:75,000
  • MM74HC138MX
  • Status: Active
  • Compliance: Pb-free 
  • Description: 3 to 8 Line Decoder
  • Package Type: SOIC-16
  • Package Case Outline: 751BG
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 2500
  • Inventory

  • Market Leadtime (weeks):4 to 8
  • Arrow:0
  • Digikey:>1K
  • Mouser:>1K
  • ON Semiconductor:77,500
  • MM74HC138N
  • Status: Obsolete
  • Compliance: Pb-free 
  • Description: 3 to 8 Line Decoder
  • Package Type: E-PKG AXIAL-LEADED GLASS DIODE
  • Package Case Outline: 017AE
  • MSL: NA
  • Container Type: RAIL
  • Container Qty: 2500
  • Specifications
  • Type: Coder/Decoder 
  • Channels: 3 to 8 
  • VCC Min (V):
  • VCC Max (V):
  • tpd Max (ns): 28 
  • IO Max (mA): 5.2 
  • Package Type: SOIC-16  TSSOP-16 
  • ON Semiconductor Full Web Site