Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLogic ICsLogic IC - Flip-Flop Preset/reset Differential DIP 14

1CLR

1CLK

1PRE

GND

2CLR

2CLK

2PRE

OR PW PACKAGE

(TOP VIEW)

3 2 1 20 19

9 10 11 12 13

2CLK

2PRE

1CLK

1PRE

1CLR

2CLR

GND

SN54AHCT74 . . . FK PACKAGE

(TOP VIEW)

NC − No internal connection

SN74AHCT74 . . . RGY PACKAGE

(TOP VIEW)

1 14

7 8

2CLR

2CLK

2PRE

1CLK

1PRE

1CLR

GND

SN54AHCT74 . . . J or W PACKAGE

SN74AHCT74 . . . D, DB, DGV, N, NS,

SN54AHCT74

SN74AHCT74

www.ti.com

SCLS263O –OCTOBER 1995–REVISED JUNE 2013

QUADRUPLE 2-INPUT POSITIVE-NAND GATES

Check for Samples: SN54AHCT74, SN74AHCT74

FEATURES

• ESD Protection Exceeds JESD 22

– 2000-V Human-Body Model (A114-A)

• Inputs Are TTL-Voltage Compatible

– 200-V Machine Model (A115-A)

• Latch-Up Performance Exceeds 250 mA Per

JESD 17

– 1000-V Charged-Device Model (C101)

DESCRIPTION

The ’AHCT74 dual positive-edge-triggered devices are D-type flip-flops.

A low level at the preset (PRE) or clear (CLR) inputs sets or resets the outputs, regardless of the levels of the

other inputs. When PRE and CLR are inactive (high), data at the data (D) input meeting the setup time

requirements is transferred to the outputs on the positive-going edge of the clock pulse. Clock triggering occurs

at a voltage level and is not directly related to the rise time of the clock pulse. Following the hold-time interval,

data at the D input can be changed without affecting the levels at the outputs.

FUNCTION TABLE

(EACH FLIP-FLOP)

INPUTS OUTPUT

PRE CLR CLK D Q Q

L H X X H L

H L X X L H

L L X X H

(1)

H H ↑ H H L

H H ↑ L L H

H H L X Q

(1) This configuration is non-stable; that is, it does not persist when PRE

or CLR returns to its inactive (high) level.

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.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (27 pages)

PAGE 1
SN54AHCT74 SN74AHCT74 www.ti.com SCLS263O – OCTOBER 1995 – REVISED JUNE 2013 QUADRUPLE 2-INPUT POSITIVE-NAND GATES Check for Samples: SN54AHCT74, SN74AHCT74 Inputs Are TTL-Voltage Compatible Latch-Up Performance Exceeds 250 mA Per JESD 17 13 3 12 4 11 5 10 6 9 7 8 VCC 2CLR 2D 2CLK 2PRE 2Q 2Q 1D 1CLK 1PRE 1Q 1Q 14 1D 1 SN54AHCT74 . . .
PAGE 2
SN54AHCT74 SN74AHCT74 SCLS263O – OCTOBER 1995 – REVISED JUNE 2013 www.ti.com LOGIC DIAGRAM, EACH FLIP-FLOP (POSITIVE LOGIC) PRE CLK C C C Q TG C C C C D TG TG TG C C C Q CLR ABSOLUTE MAXIMUM RATINGS over operating free-air temperature range (unless otherwise noted) (1) VALUE UNIT Supply voltage range, VCC –0.5 to 7 V Input voltage range, VI (2) –0.5 to 7 V Output voltage range, VO (2) –0.5 to VCC + 0.
PAGE 3
SN54AHCT74 SN74AHCT74 www.ti.com SCLS263O – OCTOBER 1995 – REVISED JUNE 2013 RECOMMENDED OPERATING CONDITIONS (1) SN54AHCT74 SN74AHCT74 MIN MAX MIN MAX 4.5 5.5 4.5 5.5 UNIT VCC Supply voltage VIH High-level input voltage VIL Low-level Input voltage 0.8 V VI Input voltage 0 5.5 0 5.
PAGE 4
SN54AHCT74 SN74AHCT74 SCLS263O – OCTOBER 1995 – REVISED JUNE 2013 www.ti.com SWITCHING CHARACTERISTICS over recommended operating free-air temperature range, VCC = 5 V ± 0.
PAGE 5
SN54AHCT74 SN74AHCT74 www.ti.com SCLS263O – OCTOBER 1995 – REVISED JUNE 2013 PARAMETER MEASUREMENT INFORMATION VCC Test Point From Output Under Test RL = 1 kΩ From Output Under Test S1 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 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 6
SN54AHCT74 SN74AHCT74 SCLS263O – OCTOBER 1995 – REVISED JUNE 2013 www.ti.com REVISION HISTORY Changes from Revision N (July 2003) to Revision O Page • Changed document format from Quicksilver to DocZone. .................................................................................................... 1 • Extended operating temperature range to 125°C .................................................................................................................
PAGE 7
PACKAGE OPTION ADDENDUM www.ti.
PAGE 8
PACKAGE OPTION ADDENDUM www.ti.
PAGE 9
PACKAGE OPTION ADDENDUM www.ti.com 25-Sep-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 10
PACKAGE OPTION ADDENDUM www.ti.
PAGE 11
PACKAGE MATERIALS INFORMATION www.ti.com 17-Jun-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 SN74AHCT74DBR SSOP DB 14 2000 330.0 16.4 8.2 6.6 2.5 12.0 16.0 Q1 SN74AHCT74DGVR TVSOP DGV 14 2000 330.0 12.4 6.8 4.0 1.6 8.0 12.0 Q1 SN74AHCT74DR SOIC D 14 2500 330.0 16.4 6.5 9.0 2.1 8.0 16.
PAGE 12
PACKAGE MATERIALS INFORMATION www.ti.com 17-Jun-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) SN74AHCT74DBR SSOP DB 14 2000 367.0 367.0 38.0 SN74AHCT74DGVR TVSOP DGV 14 2000 367.0 367.0 35.0 SN74AHCT74DR SOIC D 14 2500 367.0 367.0 38.0 SN74AHCT74NSR SO NS 14 2000 367.0 367.0 38.0 SN74AHCT74PWR TSSOP PW 14 2000 367.0 367.0 35.0 SN74AHCT74RGYR VQFN RGY 14 3000 367.0 367.0 35.
PAGE 13
PAGE 14
PAGE 15
PAGE 16
PAGE 17
MECHANICAL DATA MPDS006C – FEBRUARY 1996 – REVISED AUGUST 2000 DGV (R-PDSO-G**) PLASTIC SMALL-OUTLINE 24 PINS SHOWN 0,40 0,23 0,13 24 13 0,07 M 0,16 NOM 4,50 4,30 6,60 6,20 Gage Plane 0,25 0°– 8° 1 0,75 0,50 12 A Seating Plane 0,15 0,05 1,20 MAX PINS ** 0,08 14 16 20 24 38 48 56 A MAX 3,70 3,70 5,10 5,10 7,90 9,80 11,40 A MIN 3,50 3,50 4,90 4,90 7,70 9,60 11,20 DIM 4073251/E 08/00 NOTES: A. B. C. D. All linear dimensions are in millimeters.
PAGE 18
PAGE 19
PAGE 20
PAGE 21
PAGE 22
PAGE 23
PAGE 24
PAGE 25
PAGE 26
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 27
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.