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Bare Die Data Sheet: 54LS138

3-to-8 Line Decoder/Demultiplexer made on a 2µm 40V Bipolar process. Decodes 1-of-8 lines, set by 3 binary select inputs & 3 enable inputs. Operates as 8-output demultiplexer by 1 active LOW Enable set as data input & other Enable inputs as strobes.
Direct replacement for legacy Fairchild 54LS138, National 54LS138, Motorola 54LS138 & Texas Instruments SN54LS138, 54LS138. Device operates over the full military temperature range & is well suited for high reliability applications.
Features:
** END OF LIFE ** NOT RECOMMENDED FOR NEW DESIGN
  • Expandable to a 24-line decoder with no external inverters
  • Expansion to a 32-line decoder requires only one inverter
  • Short propagation delay times versus standard memory access times
  • Input Clamp Diodes Limit High Speed Termination Effects
  • Low Power - ICC 10mA (Max)
  • Typical Power Dissipation of 32 mW
  • Suitable for performance data decoding & routing where short propagation delay times are needed.
  • Military Temperature Range for High Reliability
Vendor:
Silicon Supplies
  Electrical Datasheet

Die Physical Data:
Footprint: 2.739mm² (4245.463mil²)
X: 1660µm (65mil)
Y: 1650µm (65mil)
  Request Pad Layout

In Stock: 20149

MIL-STD Qualification:
  38534 Class K LAT 
Product Families: Used for this device are tabulated below.
Functional:
  • Function: -
  • I/P Level: TTL
  • O/P Level: TTL
  • Config: -
  • 3-State O/P: No
Specification:
VCC (Min): 4.50V
VCC (Max): 5.50V
fMIN @ VNOM: 35MHz
tpd (Max) @ VNOM: 41.0ns
ICC (Max) @ VNOM: 10.000mA
VNOM (Max): 5.5V
Other Detail: Important information for this device is tabulated below.
Traffic light setting for Minimum Order Quantity indicates the following:
  • Green:Available from stock or at low factory MOQ.
  • Amber: Available on factory order with MOQ.
  • Red: High factory MOQ may apply, please ask for details.
Traffic light setting for High Reliability indicates the following:
  • Green: This bare die is specified and tested for use in high reliability applications.
  • Amber: This bare die can meet higher reliability specifications with additional testing & qualification, please ask for details.
  • Red: This bare die is not specified or specifically designed for use in high reliability applications.
Traffic light setting for Space Grade indicates the following:
  • Green: This bare die is qualified for space applications or has space level qualification data, please ask for details.
  • Amber: This bare die can be specified for space applications with additional testing and qualification, please ask for details.
  • Red: Suitability of this bare die for space applications is unknown and requires further qualification, please ask for details.