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Bare Die Product Detail: 74LS161

Counter/Arithmetic/Parity Logic:
The 74LS161 programmable 4–bit asynchronous binary counter features parallel load, asynchronous reset, ripple-carry output for cascading and count-enable controls.
The device directly replaces legacy National / Fairchild DM74LS161, Motorola MC74LS161, RCA HARRIS 74LS161 and Texas Instruments SN74LS161A or CD74LS161.
Features:
** END OF LIFE ** NOT RECOMMENDED FOR NEW DESIGN
  • Synchronous counting and loading
  • Two Count Enable Inputs for n-Bit Cascading
  • Asynchronous master reset
  • Look-Ahead Carry for High-Speed Counting
Vendor:
Silicon Supplies
  Electrical Datasheet

Die Physical Data:
Footprint: 2.889mm² (4478.119mil²)
  Request Pad Layout
Product Families: Used for this device are tabulated below.
Functional:
  • I/P Level: TTL
  • O/P Level: TTL
  • Function: Binary, Decade Counter
  • Bits: 4
  • 3-State O/P: No
Specification:
VCC (Min): 4.75V
VCC (Max): 5.25V
fMIN @ VNOM: 35MHz
tpd (Max) @ VNOM: 35.0ns
ICC (Max) @ VNOM: 32.00mA
Output Drive (Max): 8.0mA
VNOM (Max): 5.0V
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.

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