Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLogic ICsLogic IC - Flip-Flop Standard Three-state, Non-inverting TSSOP 20

SN54AHC374, SN74AHC374

OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS

WITH 3-STATE OUTPUTS

SCLS240I – OCTOBER 1995 – REVISED JULY 2003

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

Operating Range 2-V to 5.5-V V

3-State Outputs Drive Bus Lines Directly

Latch-Up Performance Exceeds 250 mA Per

JESD 17

ESD Protection Exceeds JESD 22

– 2000-V Human-Body Model (A114-A)

– 200-V Machine Model (A115-A)

– 1000-V Charged-Device Model (C101)

SN54AHC374 ...J OR W PACKAGE

SN74AHC374 . . . DB, DGV, DW, N, NS, OR PW PACKAGE

(TOP VIEW)

SN54AHC374 . . . FK PACKAGE

(TOP VIEW)

GND

CLK

3 2 1 20 19

9 10 11 12 13

GND

CLK

description/ordering information

The ’AHC374 devices are octal edge-triggered D-type flip-flops that feature 3-state outputs designed

specifically for driving highly capacitive or relatively low-impedance loads. These devices are particularly

suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.

On the positive transition of the clock (CLK) input, the Q outputs are set to the logic levels of the data (D) inputs.

A buffered output-enable (OE) input can be used to place the eight outputs in either a normal logic state (high

or low) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines

significantly. The high-impedance state and the increased drive provide the capability to drive bus lines without

interface or pullup components.

ORDERING INFORMATION

PACKAGE

†

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

PDIP – N Tube SN74AHC374N SN74AHC374N

SOIC DW

Tube SN74AHC374DW

AHC374

SOIC

–

Tape and reel SN74AHC374DWR

AHC374

40°Cto85°C

SOP – NS Tape and reel SN74AHC374NSR AHC374

–

40°C

85°C

SSOP – DB Tape and reel SN74AHC374DBR HA374

TSSOP PW

Tube SN74AHC374PW

HA374

TSSOP

–

Tape and reel SN74AHC374PWR

HA374

TVSOP – DGV Tape and reel SN74AHC374DGVR HA374

CDIP – J Tube SNJ54AHC374J SNJ54AHC374J

–55°C to 125°C

CFP – W Tube SNJ54AHC374W SNJ54AHC374W

LCCC – FK Tube SNJ54AHC374FK SNJ54AHC374FK

†

Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines

are available at www.ti.com/sc/package.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

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.

On products compliant to MIL-PRF-38535, all parameters are tested

unless otherwise noted. On all other products, production

processing does not necessarily include testing of all parameters.

Summary of content (22 pages)

PAGE 1
SN54AHC374, SN74AHC374 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS240I – OCTOBER 1995 – REVISED JULY 2003 D Operating Range 2-V to 5.5-V VCC 3-State Outputs Drive Bus Lines Directly Latch-Up Performance Exceeds 250 mA Per JESD 17 SN54AHC374 . . . J OR W PACKAGE SN74AHC374 . . . DB, DGV, DW, N, NS, OR PW PACKAGE (TOP VIEW) 1 20 2 19 3 18 4 17 5 16 6 15 7 14 8 13 9 12 10 11 1D 1Q OE VCC SN54AHC374 . . .
PAGE 2
SN54AHC374, SN74AHC374 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS240I – OCTOBER 1995 – REVISED JULY 2003 description/ordering information (continued) OE does not affect internal operations of the flip-flop. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.
PAGE 3
SN54AHC374, SN74AHC374 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS240I – OCTOBER 1995 – REVISED JULY 2003 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) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PAGE 4
SN54AHC374, SN74AHC374 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS240I – OCTOBER 1995 – REVISED JULY 2003 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER MIN TA = 25°C TYP MAX 2V 1.9 2 1.9 1.9 3V 2.9 3 2.9 2.9 4.5 V 4.4 4.5 4.4 4.4 IOH = –4 mA 3V 2.58 2.48 2.48 IOH = –8 mA 4.5 V 3.94 3.8 3.8 TEST CONDITIONS IOH = –50 mA VOH IOL = 50 mA VOL IOL = 4 mA II IOZ ICC Ci IOL = 8 mA VI = 5.
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SN54AHC374, SN74AHC374 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS240I – OCTOBER 1995 – REVISED JULY 2003 switching characteristics over recommended operating free-air temperature range, VCC = 3.3 V ± 0.
PAGE 6
SN54AHC374, SN74AHC374 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS240I – OCTOBER 1995 – REVISED JULY 2003 noise characteristics, VCC = 5 V, CL = 50 pF, TA = 25°C (see Note 4) SN74AHC374 PARAMETER MIN TYP MAX UNIT VOL(P) VOL(V) Quiet output, maximum dynamic VOL 0.5 1 V Quiet output, minimum dynamic VOL –0.5 –0.8 V VOH(V) VIH(D) Quiet output, minimum dynamic VOH 4 High-level dynamic input voltage V 3.
PAGE 7
SN54AHC374, SN74AHC374 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS240I – OCTOBER 1995 – REVISED JULY 2003 PARAMETER MEASUREMENT INFORMATION From Output Under Test RL = 1 kΩ From Output Under Test Test Point S1 VCC Open TEST GND CL (see Note A) CL (see Note A) S1 tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Open Drain Open VCC GND VCC LOAD CIRCUIT FOR 3-STATE AND OPEN-DRAIN OUTPUTS LOAD CIRCUIT FOR TOTEM-POLE OUTPUTS VCC 50% VCC Timing Input tw tsu VCC Input 50% VCC 50% VCC 0V th
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 31-Oct-2013 Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
PAGE 11
PACKAGE MATERIALS INFORMATION www.ti.com 12-Aug-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant SN74AHC374DBR SSOP DB 20 2000 330.0 16.4 8.2 7.5 2.5 12.0 16.0 Q1 SN74AHC374DWR SOIC DW 20 2000 330.0 24.4 10.8 13.3 2.7 12.0 24.0 Q1 SN74AHC374NSR SO NS 20 2000 330.0 24.4 8.2 13.0 2.5 12.0 24.
PAGE 12
PACKAGE MATERIALS INFORMATION www.ti.com 12-Aug-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) SN74AHC374DBR SN74AHC374DWR SSOP DB 20 2000 367.0 367.0 38.0 SOIC DW 20 2000 367.0 367.0 45.0 SN74AHC374NSR SO NS 20 2000 367.0 367.0 45.0 SN74AHC374PWR TSSOP PW 20 2000 367.0 367.0 38.
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MECHANICAL DATA MSSO002E – JANUARY 1995 – REVISED DECEMBER 2001 DB (R-PDSO-G**) PLASTIC SMALL-OUTLINE 28 PINS SHOWN 0,38 0,22 0,65 28 0,15 M 15 0,25 0,09 8,20 7,40 5,60 5,00 Gage Plane 1 14 0,25 A 0°–ā8° 0,95 0,55 Seating Plane 2,00 MAX 0,10 0,05 MIN PINS ** 14 16 20 24 28 30 38 A MAX 6,50 6,50 7,50 8,50 10,50 10,50 12,90 A MIN 5,90 5,90 6,90 7,90 9,90 9,90 12,30 DIM 4040065 /E 12/01 NOTES: A. B. C. D. All linear dimensions are in millimeters.
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