Datasheet

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

SN54AHCT374, SN74AHCT374

OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS

WITH 3-STATE OUTPUTS

SCLS241L – OCTOBER 1995 – REVISED JULY 2003

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

Inputs Are TTL-Voltage Compatible

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)

3212019

910111213

GND

CLK

SN54AHCT374 ...FK PACKAGE

(TOP VIEW)

SN54AHCT374 ...J OR W PACKAGE

SN74AHCT374 . . . DB, DGV, DW, N, NS, OR PW PACKAGE

(TOP VIEW)

GND

CLK

description/ordering information

The ’AHCT374 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. This device is 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 logic levels) 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 SN74AHCT374N SN74AHCT374N

SOIC DW

Tube SN74AHCT374DW

AHCT374

SOIC

–

Tape and reel SN74AHCT374DWR

AHCT374

Cto85

SOP – NS Tape and reel SN74AHCT374NSR AHCT374

–

40°C

85°C

SSOP – DB Tape and reel SN74AHCT374DBR HB374

TSSOP PW

Tube SN74AHCT374PW

HB374

TSSOP

–

Tape and reel SN74AHCT374PWR

HB374

TVSOP – DGV Tape and reel SN74AHCT374DGVR HB374

CDIP – J Tube SNJ54AHCT374J SNJ54AHCT374J

–55°C to 125°C

CFP – W Tube SNJ54AHCT374W SNJ54AHCT374W

LCCC – FK Tube SNJ54AHCT374FK SNJ54AHCT374FK

†

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 (19 pages)

PAGE 1
SN54AHCT374, SN74AHCT374 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS241L – OCTOBER 1995 – REVISED JULY 2003 D D D Inputs Are TTL-Voltage Compatible 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) SN54AHCT374 . . . J OR W PACKAGE SN74AHCT374 . . .
PAGE 2
SN54AHCT374, SN74AHCT374 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS241L – 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
SN54AHCT374, SN74AHCT374 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS241L – OCTOBER 1995 – REVISED JULY 2003 recommended operating conditions (see Note 3) SN54AHCT374 SN74AHCT374 MIN MAX MIN MAX 4.5 5.5 4.5 5.5 UNIT VCC VIH Supply voltage VIL VI Low-level input voltage 0.8 V Input voltage 0 5.5 0 5.
PAGE 4
SN54AHCT374, SN74AHCT374 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS241L – OCTOBER 1995 – REVISED JULY 2003 switching characteristics over recommended free-air temperature operating range, VCC = 5 V ± 0.
PAGE 5
SN54AHCT374, SN74AHCT374 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS241L – OCTOBER 1995 – REVISED JULY 2003 PARAMETER MEASUREMENT INFORMATION From Output Under Test Test Point RL = 1 kΩ From Output Under Test VCC Open S1 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 3V 1.5 V Timing Input 0V tw 3V 1.5 V Input 1.
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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 25-Sep-2013 (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.
PAGE 9
PACKAGE MATERIALS INFORMATION www.ti.com 26-Jan-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device SN74AHCT374DBR 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 SSOP DB 20 2000 330.0 16.4 8.2 7.5 2.5 12.0 16.0 Q1 SN74AHCT374DWR SOIC DW 20 2000 330.0 24.4 10.8 13.0 2.7 12.0 24.0 Q1 SN74AHCT374PWR TSSOP PW 20 2000 330.0 16.4 6.95 7.1 1.6 8.0 16.
PAGE 10
PACKAGE MATERIALS INFORMATION www.ti.com 26-Jan-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) SN74AHCT374DBR SSOP DB 20 2000 367.0 367.0 38.0 SN74AHCT374DWR SOIC DW 20 2000 367.0 367.0 45.0 SN74AHCT374PWR 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.
PAGE 19
IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.