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SN54HC191J - Texas Instruments

Description: Counter Single 4-Bit Async Binary UP/Down 16-Pin CDIP Tube

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SN54HC191J - Texas Instruments PCB footprint - Ceramic Dual-In-Line Packages - Ceramic Dual-In-Line Packages - J(R-GDIP-T16)
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SN54HC191J - Texas Instruments  - 3D model - Ceramic Dual-In-Line Packages - J(R-GDIP-T16)
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SN54HC191J Details

  • Manufacturer Part Number:

    SN54HC191J

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    DIP

  • Pin Count:

    16

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Additional Feature:

    RCO OUTPUT

  • Count Direction:

    BIDIRECTIONAL

  • Family:

    HC/UH

  • JESD-30 Code:

    R-GDIP-T16

  • JESD-609 Code:

    e0

  • Length:

    21.34 mm

  • Load Capacitance (CL):

    50 pF

  • Load/Preset Input:

    YES

  • Logic IC Type:

    BINARY COUNTER

  • Max Frequency@Nom-Sup:

    14000000 Hz

  • Max I(ol):

    0.0052 A

  • Mode of Operation:

    SYNCHRONOUS

  • Number of Bits:

    4

  • Number of Functions:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -55 °C

  • Package Body Material:

    CERAMIC, GLASS-SEALED

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP16,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Packing Method:

    TUBE

  • Power Supply Current-Max (ICC):

    0.08 mA

  • Prop. Delay@Nom-Sup:

    41 ns

  • Propagation Delay (tpd):

    288 ns

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    5.08 mm

  • Supply Voltage-Max (Vsup):

    6 V

  • Supply Voltage-Min (Vsup):

    2 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    NO

  • Technology:

    CMOS

  • Temperature Grade:

    MILITARY

  • Terminal Finish:

    Tin/Lead (Sn/Pb)

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Trigger Type:

    POSITIVE EDGE

  • Width:

    7.62 mm

  • fmax-Min:

    16 MHz

SN54HC191J Frequently Asked Questions (FAQs)

  • The maximum clock frequency of the SN54HC191J is 40 MHz, but it can vary depending on the operating voltage and temperature. It's recommended to check the timing characteristics in the datasheet for specific frequency limits.
  • To ensure proper reset, connect the MR (Master Reset) pin to a pull-up resistor and a capacitor to VCC. This will ensure that the device is reset during power-up and holds the reset state until the capacitor is fully charged.
  • The recommended operating voltage range for the SN54HC191J is 2V to 6V, with a typical operating voltage of 5V. Operating the device outside of this range may affect its performance and reliability.
  • Yes, the SN54HC191J can be used in a 3.3V system, but it's essential to ensure that the input signals are within the recommended voltage range (Vih = 2.4V, Vil = 0.8V) and that the output signals are compatible with the 3.3V system.
  • The CLR input is an asynchronous clear input that resets the counter when it's low. To ensure proper operation, CLR should be synchronized with the clock signal to avoid metastability issues. It's recommended to use a flip-flop or a synchronizer to synchronize the CLR signal with the clock.

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About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

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Part Image CD74HC191E Rochester Electronics LLC

Binary Counter, HC/UH Series, Synchronous, Positive Edge Triggered, 4-Bit, Bidirectional, CMOS, PDIP16

Part Image MM74HC191N National Semiconductor Corporation

Binary Counter, HC/UH Series, Synchronous, Positive Edge Triggered, 4-Bit, Bidirectional, CMOS, PDIP16

Part Image HD74HC191P Renesas Electronics Corporation

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Part Image MC74HC191JDS Freescale Semiconductor

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Part Image M74HC191B1R STMicroelectronics

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For a full list of alternate parts for SN54HC191J, check out Findchips.com