Datasheet

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SN54AHCT273, SN74AHCT273

OCTAL D-TYPE FLIP-FLOPS

WITH CLEAR

SCLS375E – JUNE 1997 – REVISED APRIL 2002

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

Inputs Are TTL-Voltage Compatible

Contain Eight Flip-Flops With Single-Rail

Outputs

Direct Clear Input

Individual Data Input to Each Flip-Flop

Applications Include:

– Buffer/Storage Registers

– Shift Registers

– Pattern Generators

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)

description

These devices are positive-edge-triggered D-type

flip-flops with a direct clear (CLR

) input.

Information at the data (D) inputs meeting the

setup time requirements is transferred to the

Q outputs on the positive-going edge of the clock

(CLK) pulse. Clock triggering occurs at a

particular voltage level and is not directly related

to the transition time of the positive-going pulse.

When CLK is at either the high or low level, the

D input has no effect at the output.

ORDERING INFORMATION

PACKAGE

†

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

PDIP – N Tube SN74AHCT273N SN74AHCT273N

SOIC DW

Tube SN74AHCT273DW

AHCT273

SOIC

–

Tape and reel SN74AHCT273DWR

AHCT273

–40°C to 85°C

SOP – NS Tape and reel SN74AHCT273NSR AHCT273

SSOP – DB Tape and reel SN74AHCT273DBR HB273

TSSOP – PW Tape and reel SN74AHCT273PWR HB273

TVSOP – DGV Tape and reel SN74AHCT273DGVR HB273

CDIP – J Tube SNJ54AHCT273J SNJ54AHCT273J

–55°C to 125°C

CFP – W Tube SNJ54AHCT273W SNJ54AHCT273W

LCCC – FK Tube SNJ54AHCT273FK SNJ54AHCT273FK

†

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

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

UNLESS OTHERWISE NOTED this document contains PRODUCTION

DATA information 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.

SN54AHCT273 ...J OR W PACKAGE

SN74AHCT273 . . . DB, DGV, DW, N, NS, OR PW PACKAGE

(TOP VIEW)

SN54AHCT273 . . . FK PACKAGE

(TOP VIEW)

3 2 1 20 19

9 10 11 12 13

CLR

GND

CLK

CLR

GND

CLK

Summary of content (18 pages)

PAGE 1
SN54AHCT273, SN74AHCT273 OCTAL D-TYPE FLIP-FLOPS WITH CLEAR SCLS375E – JUNE 1997 – REVISED APRIL 2002 D D D D D SN54AHCT273 . . . J OR W PACKAGE SN74AHCT273 . . .
PAGE 2
SN54AHCT273, SN74AHCT273 OCTAL D-TYPE FLIP-FLOPS WITH CLEAR SCLS375E – JUNE 1997 – REVISED APRIL 2002 FUNCTION TABLE (each flip-flop) INPUTS CLR CLK OUTPUT Q D L X X L H ↑ H H H ↑ L L H L X Q0 logic diagram (positive logic) CLK 1D 2D 3D 4D 3 4 7 8 6D 13 7D 14 8D 17 18 11 1D 1D C1 1D C1 R CLR 5D 1D C1 R 1D C1 R 1D C1 R 1D C1 R 1D C1 R C1 R R 1 2 5 6 1Q 2Q 3Q 9 12 4Q 15 5Q 6Q 16 19 7Q 8Q logic diagram, each flip-flop (positive lo
PAGE 3
SN54AHCT273, SN74AHCT273 OCTAL D-TYPE FLIP-FLOPS WITH CLEAR SCLS375E – JUNE 1997 – REVISED APRIL 2002 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.
PAGE 4
SN54AHCT273, SN74AHCT273 OCTAL D-TYPE FLIP-FLOPS WITH CLEAR SCLS375E – JUNE 1997 – REVISED APRIL 2002 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VOH VOL II ICC ∆ICC† TEST CONDITIONS VCC IOH = –50 mA MIN TA = 25°C TYP MAX 4.4 45V 4.5 IOH = –8 mA IOL = 50 mA 4.5 3.94 MAX SN74AHCT273 MIN 4.4 4.4 3.8 3.8 MAX UNIT V 0.1 0.1 0.36 0.44 0.44 ±0.1 ±1* ±1 mA 5.5 V 4 40 40 mA 5.5 V 1.35 1.5 1.
PAGE 5
SN54AHCT273, SN74AHCT273 OCTAL D-TYPE FLIP-FLOPS WITH CLEAR SCLS375E – JUNE 1997 – REVISED APRIL 2002 noise characteristics, VCC = 5 V, CL = 50 pF, TA = 25°C (see Note 4) SN74AHCT273 PARAMETER MIN TYP MAX UNIT VOL(P) VOL(V) Quiet output, maximum dynamic VOL 0.76 V Quiet output, minimum dynamic VOL –0.48 V VOH(V) VIH(D) Quiet output, minimum dynamic VOH 4.
PAGE 6
SN54AHCT273, SN74AHCT273 OCTAL D-TYPE FLIP-FLOPS WITH CLEAR SCLS375E – JUNE 1997 – REVISED APRIL 2002 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 1.5 V th tsu 3V 1.5 V Data Input 1.
PAGE 7
PACKAGE OPTION ADDENDUM www.ti.
PAGE 8
PACKAGE OPTION ADDENDUM www.ti.com 31-Oct-2013 (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.
PAGE 9
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 SN74AHCT273DBR SSOP DB 20 2000 330.0 16.4 8.2 7.5 2.5 12.0 16.0 Q1 SN74AHCT273DWR SOIC DW 20 2000 330.0 24.4 10.8 13.3 2.7 12.0 24.0 Q1 SN74AHCT273NSR SO NS 20 2000 330.0 24.4 8.2 13.0 2.5 12.0 24.
PAGE 10
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) SN74AHCT273DBR SN74AHCT273DWR SSOP DB 20 2000 367.0 367.0 38.0 SOIC DW 20 2000 367.0 367.0 45.0 SN74AHCT273NSR SO NS 20 2000 367.0 367.0 45.0 SN74AHCT273PWR 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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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.