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SN74HC393DBR - Texas Instruments

Description: Dual 4-Bit Binary Counters

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SN74HC393DBR - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DB (R-PDSO-G14)
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SN74HC393DBR Details

  • Manufacturer Part Number:

    SN74HC393DBR

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SSOP

  • Pin Count:

    14

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Count Direction:

    UP

  • Family:

    HC/UH

  • JESD-30 Code:

    R-PDSO-G14

  • JESD-609 Code:

    e4

  • Length:

    6.2 mm

  • Load Capacitance (CL):

    50 pF

  • Load/Preset Input:

    NO

  • Logic IC Type:

    BINARY COUNTER

  • Max Frequency@Nom-Sup:

    25000000 Hz

  • Max I(ol):

    0.0052 A

  • Mode of Operation:

    ASYNCHRONOUS

  • Moisture Sensitivity Level:

    1

  • Number of Bits:

    4

  • Number of Functions:

    2

  • Number of Terminals:

    14

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SSOP

  • Package Equivalence Code:

    SSOP14,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, SHRINK PITCH

  • Packing Method:

    TR, 13 INCH

  • Peak Reflow Temperature (Cel):

    260

  • Power Supply Current-Max (ICC):

    0.08 mA

  • Prop. Delay@Nom-Sup:

    72 ns

  • Propagation Delay (tpd):

    360 ns

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    2 mm

  • Supply Voltage-Max (Vsup):

    6 V

  • Supply Voltage-Min (Vsup):

    2 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Trigger Type:

    NEGATIVE EDGE

  • Width:

    5.3 mm

  • fmax-Min:

    28 MHz

SN74HC393DBR Frequently Asked Questions (FAQs)

  • The maximum clock frequency of the SN74HC393DBR is 40 MHz, but it can vary depending on the operating voltage and load capacitance. It's recommended to check the timing characteristics in the datasheet for specific frequency limits.
  • To ensure proper reset, the reset input (R) should be held low for at least 2 ns and then released. The counter will reset to zero on the rising edge of the clock (CLK) signal. Make sure to meet the setup and hold time requirements for the reset input.
  • A simple power-on reset circuit can be implemented using a resistor, capacitor, and diode. The capacitor should be connected between VCC and GND, and the resistor and diode should be connected in series between VCC and the reset input (R). This circuit ensures that the reset input is held low during power-up and then releases when the supply voltage stabilizes.
  • Yes, the SN74HC393DBR can be used as a frequency divider. By connecting the Q3 output to the clock input (CLK), you can create a divide-by-8 counter. You can also use the Q0-Q3 outputs to create a divide-by-2, divide-by-4, or divide-by-8 frequency divider.
  • The SN74HC393DBR does not have an overflow flag or interrupt. To handle counter overflow, you can use an external circuit to detect the overflow condition. One approach is to use a separate comparator or logic gate to detect when the counter reaches its maximum value (1111) and then reset the counter or generate an interrupt.

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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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For a full list of alternate parts for SN74HC393DBR, check out Findchips.com