Toshiba 74HC138D, Decoder, 3-of-8, Inverting, 16-Pin SOIC

  • RS Stock No. 171-3382
  • Mfr. Part No. 74HC138D
  • Manufacturer Toshiba
Product overview and Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

The 74HC138D is a high speed CMOS 3-to-8 DECODER fabricated with silicon gate C2MOS technology. It achieves the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation. When the device is enabled, 3 Binary Select inputs (A, B and C) determine which one of the outputs (Y0 - Y7) will go low. When enable input G1 is held low or either G2A or G2B is held high, decoding function is inhibited and alloutputs go high.G1, G2A, and G2B inputs are provided to ease cascade connection and for use as an address decoder for memory systems. All inputs are equipped with protection circuits against static discharge or transient excess voltage

High speed: tpd = 16 ns (typ.) at VCC = 5 V
Low power dissipation: ICC = 4.0 μA (max) at Ta = 25 
Balanced propagation delays: tPLH ≈ tPHL
Wide operating voltage range: VCC(opr) = 2.0 to 6.0 V

Attribute Value
Logic Family 74HC
Logic Function Decoder
Demultiplexing Capability 3-of-8
Number of Elements per Chip 34
Number of Input Enables per Element 3
Output Type CMOS
Polarity Inverting
Mounting Type Surface Mount
Package Type SOIC
Pin Count 16
Dimensions 10.2 x 3.9 x 1.38mm
Height 1.38mm
Length 10.2mm
Maximum Operating Supply Voltage 6 V
Minimum Operating Supply Voltage 2 V
Maximum Operating Temperature +125 °C
Minimum Operating Temperature -40 °C
Width 3.9mm
2500 In stock for delivery within 3 working days
Price Each (On a Reel of 2500)
HK$ 0.942
(exc. GST)
Per unit
Per Reel*
2500 - 2500
5000 +
*price indicative