SN 74 Ahc 16540
SN 74 Ahc 16540
16-BIT BUFFERS/DRIVERS
                                                                                                                              WITH 3-STATE OUTPUTS
                                                                                                                        SCLS331F – MARCH 1996 – REVISED JANUARY 2000
                                                                                    FUNCTION TABLE
                                                                                 (each 8-bit buffer/driver)
                                                                                   INPUTS              OUTPUT
                                                                           OE1       OE2         A       Y
                                                                             L         L         L         H
                                                                             L         L         H         L
                                                                             H         X         X         Z
                                                                             X         H         X         Z
                    Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
                    Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
logic symbol†
                                             1                 &
                                    1OE1
                                             48                           EN1
                                    1OE2
                                             24
                                    2OE1                       &
                                             25                           EN2
                                    2OE2
                                             47                                                2
                                     1A1                              1      1                     1Y1
                                             46                                               3
                                     1A2                                                           1Y2
                                             44                                               5
                                     1A3                                                           1Y3
                                             43                                               6
                                     1A4                                                           1Y4
                                             41                                               8
                                     1A5                                                           1Y5
                                             40                                               9
                                     1A6                                                           1Y6
                                             38                                               11
                                     1A7                                                           1Y7
                                             37                                               12
                                     1A8                                                           1Y8
                                             36                                               13
                                     2A1                              1      2                     2Y1
                                             35                                               14
                                     2A2                                                           2Y2
                                             33                                               16
                                     2A3                                                           2Y3
                                             32                                               17
                                     2A4                                                           2Y4
                                             30                                               19
                                     2A5                                                           2Y5
                                             29                                               20
                                     2A6                                                           2Y6
                                             27                                               22
                                     2A7                                                           2Y7
                                             26                                               23
                                     2A8                                                           2Y8
† This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
                        47                             2                            36                        13
                  1A1                                      1Y1               2A1                                   2Y1
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
         Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V
         Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V
         Output voltage range, VO (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to VCC + 0.5 V
         Input clamp current, IIK (VI < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20 mA
         Output clamp current, IOK (VO < 0 or VO > VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA
         Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±25 mA
         Continuous current through each VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±75 mA
         Package thermal impedance, θJA (see Note 2): DGG package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70°C/W
                                                                      DGV package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58°C/W
                                                                      DL package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63°C/W
         Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
  functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
  implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
           2. The package thermal impedance is calculated in accordance with JESD 51.
                                                                                                                                                 VCC
                                                                               Timing Input                       50% VCC
                                   tw                                                                                                            0V
                                                                                                                              th
                                                             VCC                                    tsu
                                                                                                                                                 VCC
         Input          50% VCC                   50% VCC
                                                                                  Data Input                50% VCC        50% VCC
                                                             0V                                                                                  0V
                        VOLTAGE WAVEFORMS                                                                  VOLTAGE WAVEFORMS
                          PULSE DURATION                                                                  SETUP AND HOLD TIMES
                                                                VCC                                                                              VCC
                                                                                     Output
           Input             50% VCC          50% VCC                                                        50% VCC       50% VCC
                                                                                     Control
                                                                0V                                                                               0V
www.ti.com 10-Dec-2020
PACKAGING INFORMATION
           Orderable Device             Status    Package Type Package Pins Package             Eco Plan            Lead finish/           MSL Peak Temp          Op Temp (°C)                Device Marking         Samples
                                          (1)                  Drawing        Qty                   (2)             Ball material                  (3)                                               (4/5)
                                                                                                                         (6)
SN74AHC16540DGGR ACTIVE TSSOP DGG 48 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 AHC16540
SN74AHC16540DL ACTIVE SSOP DL 48 25 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 AHC16540
(1)
   The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
   RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of <=1000ppm threshold. Antimony trioxide based
flame retardants must also meet the <=1000ppm threshold requirement.
(3)
      MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
(4)
      There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.
(5)
   Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation
of the previous line and the two combined represent the entire Device Marking for that device.
(6)
   Lead finish/Ball material - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead finish/Ball material values may wrap to two
lines if the finish value exceeds the maximum column width.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
                                                                                                Addendum-Page 1
                               PACKAGE OPTION ADDENDUM
www.ti.com 10-Dec-2020
             Addendum-Page 2
                                                                   PACKAGE MATERIALS INFORMATION
www.ti.com 5-Jan-2022
                                                           Pack Materials-Page 1
                                                                PACKAGE MATERIALS INFORMATION
www.ti.com 5-Jan-2022
                                                        Pack Materials-Page 2
                                                               PACKAGE MATERIALS INFORMATION
www.ti.com 5-Jan-2022
TUBE
                                                       Pack Materials-Page 3
                                                                                                               PACKAGE OUTLINE
 DGG0048A                                                           SCALE 1.350
                                                                                                         TSSOP - 1.2 mm max height
                                                                                                                       SMALL OUTLINE PACKAGE
                                                                                                                              C
                                      8.3                                                                    SEATING PLANE
                                          TYP
                                      7.9
                                              PIN 1 ID                                                                 0.1 C
               A
                                              AREA
                                                                                    46X 0.5
                                                               48
                     1
             12.6                                                                   2X
             12.4                                                                  11.5
            NOTE 3
                     24
                                                          25
                                                                                        0.27
                                                                                  48X
                                        6.2                                             0.17                          1.2
                      B
                                        6.0                                             0.08     C A B                1.0
(0.15) TYP
                                                                                                      0.25
                                      SEE DETAIL A                                             GAGE PLANE
                                                                                                                                            0.15
                                                                                                  0 -8                      0.75            0.05
                                                                                                                            0.50
                                                                                                                            DETAIL A
                                                                                                                              TYPICAL
4214859/B 11/2020
NOTES:
1. All linear dimensions are in millimeters. Any dimensions in parenthesis are for reference only. Dimensioning and tolerancing
   per ASME Y14.5M.
2. This drawing is subject to change without notice.
3. This dimension does not include mold flash, protrusions, or gate burrs. Mold flash, protrusions, or gate burrs shall not
   exceed 0.15 mm per side.
4. Reference JEDEC registration MO-153.
                                                                                  www.ti.com
                                                                               EXAMPLE BOARD LAYOUT
 DGG0048A                                                                              TSSOP - 1.2 mm max height
                                                                                                       SMALL OUTLINE PACKAGE
48X (0.3)
46X (0.5)
                                 (R0.05)                                                     SYMM
                                 TYP
24 25
(7.5)
4214859/B 11/2020
NOTES: (continued)
                                                                 www.ti.com
                                                                               EXAMPLE STENCIL DESIGN
 DGG0048A                                                                                TSSOP - 1.2 mm max height
                                                                                                          SMALL OUTLINE PACKAGE
48X (0.3)
46X (0.5)
                                                                                                SYMM
                               (R0.05) TYP
24 25
(7.5)
                                                                                                                   4214859/B 11/2020
NOTES: (continued)
7. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release. IPC-7525 may have alternate
   design recommendations.
8. Board assembly site may have different recommendations for stencil design.
                                                                  www.ti.com
                                                                                                                MECHANICAL DATA
                                                     0,27
           0,50                                                    0,08 M
                                                     0,17
      48                                                      25
                                                                          6,20      8,30
                                                                          6,00      7,90           0,15 NOM
Gage Plane
                                                                                                                             0,25
       1                                                      24
                                                                                                   0°– 8°
                                   A                                                                                         0,75
                                                                                                                             0,50
                                                                            Seating Plane
                                                              0,15
     1,20 MAX                                                                        0,10
                                                              0,05
                                                    PINS **
                                                                   48        56            64
                                              DIM
4040078 / F 12/97
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