CD74HC138-Q1 Automotive Catalog High Speed CMOS Logic 3-to-8 Line Decoder Demultiplexer Inverting and Non-Invert | TI.com

CD74HC138-Q1 (ACTIVE) Automotive Catalog High Speed CMOS Logic 3-to-8 Line Decoder Demultiplexer Inverting and Non-Invert

 

Description

The CD74HC138 is a high-speed silicon-gate CMOS decoder well suited to memory address decoding or data routing applications. This circuit features low power consumption usually associated with CMOS circuitry, yet has speeds comparable to low-power Schottky TTL logic. The circuit has three binary select inputs (A0, A1, and A2). If the device is enabled, these inputs determine which one of the eight normally high outputs of the HC138 will go low.

Two active-low and one active-high enables (E1, E2, and E3) are provided to ease the cascading of decoders. The decoder’s eight outputs can drive ten low-power Schottky TTL equivalent loads.

Features

  • Qualified for Automotive Applications
  • Select One of Eight Data Outputs Active Low
  • I/O Port or Memory Selector
  • Three Enable Inputs to Simplify Cascading
  • Typical Propagation Delay of 13 ns at VCC = 5 V, CL = 15 pF, TA = 25°C
  • Fanout (Over Temperature Range)
    • Standard Outputs . . . 10 LSTTL Loads
    • Bus Driver Outputs . . . 15 LSTTL Loads
  • Balanced Propagation Delay and Transition Times
  • Significant Power Reduction Compared to LSTTL Logic ICs
  • 2-V to 6-V VCC Operation
  • High Noise Immunity; NIL or NIH = 30% of VCC, VCC = 5 V

Parametrics

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Part number Order Function Technology Family VCC (Min) (V) VCC (Max) (V) Channels (#) Voltage (Nom) (V) F @ nom voltage (Max) (MHz) ICC @ nom voltage (Max) (mA) tpd @ nom Voltage (Max) (ns) Configuration Type IOL (Max) (mA) IOH (Max) (mA) Rating Operating temperature range (C) Package Group Package size: mm2:W x L (PKG) Bits (#) Digital input leakage (Max) (uA) ESD CDM (kV) ESD HBM (kV)
CD74HC138-Q1 Order now Decoder     HC     2     6     1     3.3
5    
28     0.08     30     3:8     Push-pull
Inverting
Non-inverting    
5.2     -5.2     Automotive     -40 to 125     SOIC | 16     16SOIC: 59 mm2: 6 x 9.9 (SOIC | 16)     8     5     0.75     2    
CD54HC138 Samples not available Decoder/Demultiplexer     HC     2     6     1     3.3
5    
28     0.08     30     3:8     Standard     5.2/-5.2       Military     -55 to 125     CDIP | 16     16CDIP: 135 mm2: 6.92 x 19.56 (CDIP | 16)     8     5     0.75     2    
CD74HC138 Samples not available Decoder
Demultiplexer    
HC     2     6     1     3.3
5    
28     0.08     30     3:8     Standard     5.2     -5.2     Catalog     -55 to 125     PDIP | 16
SOIC | 16    
16PDIP: 181 mm2: 9.4 x 19.3 (PDIP | 16)
16SOIC: 59 mm2: 6 x 9.9 (SOIC | 16)    
8     5     0.75     2