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CDx4HC367, CDx4HC368, CDx4HCT367, CD74HCT368 High-Speed CMOS Logic Hex

Buffer/Line Driver, Three-State Non-Inverting and Inverting

1 Features

• Buffered inputs

• High current bus driver outputs

• Two independent three-state enable controls

• Typical propagation delay tPLH, tPHL = 8 ns

at VCC = 5 V, CL =15 pF, TA = 25℃

• Fanout (over temperature range)

– Standard outputs: 10 LSTTL Loads

– Bus driver outputs: 15 LSTTL Loads

• Wide operating temperature range: -55 to 125℃ ℃

• Balanced propagation delay and transition times

• Significant power reduction compared to LSTTL

Logic ICs

• HC Types

– 2 V to 6 V operation

– High noise immunity: NIL = 30%,

NIH = 30% of VCC at VCC = 5 V

• HCT Types

– 4.5 V to 5.5 V operation

– Direct LSTTL input logic compatibility,

VIL = 0.8 V (Max), VIH = 2 V (Min)

– CMOS input compatibility, II ≤ 1 μA at VOL, VOH

2 Description

The ’HC367, ’HCT367, ’HC368, and CD74HCT368

silicon gate CMOS three-state buffers are general

purpose high-speed non-inverting and inverting

buffers. The ’HC367 and ’HCT367 are non-inverting

buffers, whereas the ’HC368 and CD74HCT368 are

inverting buffers. They have high drive current outputs

which enable high speed operation even when driving

large bus capacitances. These circuits possess the

low power dissipation of CMOS circuitry, yet have

speeds comparable to low power Schottky TTL

circuits. Both circuits are capable of driving up to 15

low power Schottky inputs.

Device Information

PART NUMBER PACKAGE(1) BODY SIZE (NOM)

CD74HC367M SOIC (16) 9.90 mm × 3.90 mm

CD74HC368M SOIC (16) 9.90 mm × 3.90 mm

CD74HCT367M SOIC (16) 9.90 mm × 3.90 mm

CD74HCT368M SOIC (16) 9.90 mm × 3.90 mm

CD74HC367E PDIP (16) 19.31 mm × 6.35 mm

CD74HC368E PDIP (16) 19.31 mm × 6.35 mm

CD74HCT367E PDIP (16) 19.31 mm × 6.35 mm

CD74HCT368E PDIP (16) 19.31 mm × 6.35 mm

CD54HC367F3A CDIP (16) 24.38 mm × 6.92 mm

CD54HC368F3A CDIP (16) 24.38 mm × 6.92 mm

CD54HCT367F3A CDIP (16) 24.38 mm × 6.92 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

1OE 1

1A1 21Y1

2OE 15

2A1 12 2Y1

1A2 41Y2

1A3 61Y3

1A4

1Y4

2A2 14 2Y2

Functional Block Diagram

CD54HC367, CD74HC367, CD54HCT367

CD74HCT367, CD54HC368, CD74HC368, CD74HCT368

SCHS181E – NOVEMBER 1997 – REVISED FEBRUARY 2022

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

Table of Contents

1 Features............................................................................1

2 Description.......................................................................1

3 Revision History.............................................................. 2

4 Pin Configuration and Functions...................................3

5 Specifications.................................................................. 4

5.1 Absolute Maximum Ratings........................................ 4

5.2 Recommended Operating Conditions.........................4

5.3 Thermal Information....................................................4

5.4 Electrical Characteristics.............................................5

5.5 Switching Characteristics............................................6

6 Parameter Measurement Information............................ 7

7 Detailed Description........................................................8

7.1 Overview.....................................................................8

7.2 Functional Block Diagram........................................... 8

7.3 Device Functional Modes............................................8

8 Power Supply Recommendations..................................9

9 Layout...............................................................................9

9.1 Layout Guidelines....................................................... 9

10 Device and Documentation Support..........................10

10.1 Receiving Notification of Documentation Updates..10

10.2 Support Resources................................................. 10

10.3 Trademarks............................................................. 10

10.4 Electrostatic Discharge Caution..............................10

10.5 Glossary..................................................................10

11 Mechanical, Packaging, and Orderable

Information.................................................................... 10

3 Revision History

NOTE: Page numbers for previous revisions may differ from page numbers in the current version.

Changes from Revision D (October 2003) to Revision E (February 2022) Page

• Updated the numbering, formatting, tables, figures, and cross-references throughout the document to reflect

modern data sheet standards.............................................................................................................................1

CD54HC367, CD74HC367, CD54HCT367

CD74HCT367, CD54HC368, CD74HC368, CD74HCT368

SCHS181E – NOVEMBER 1997 – REVISED FEBRUARY 2022 www.ti.com