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Fairchild MM74HCT05 Hex Inverter (Open Drain) Data Sheet

Summary

MM74HCT05 hex inverter with open drain outputs by Fairchild. CMOS device with LS-TTL compatibility, 8-10ns propagation delay, 10 LS-TTL fanout, enabling wire-NOR logic. Available in SOIC, SOP, TSSOP, PDIP packages. For digital designers needing level translation or wired-OR in mixed TTL/CMOS systems.

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74H 05 — ex Inverter (O en rain

March 2008

MM74HCT05 Hex Inverter (Open Drain) Features General Description Open drain for wire-NOR function The MM74HCT05 is a logic function fabricated by using

LS-TTL pinout and threshold compatible advanced silicon-gate CMOS technology, which pro- vides the inherent benefits of CMOS—low quiescent

Fanout of 10 LS-TTL loads

power and wide power supply range. The device is also

Typical propagation delays:

input and output characteristic and pinout compatible

– t PZL (with 1kΩ resistor) 10ns

with standard DM74LS logic families. The MM74HCT05

– t PLZ (with 1kΩ resistor) 8ns open drain Hex Inverter requires the addition of an exter-

nal resistor to perform a wire-NOR function. All inputs are protected from static discharge damage by internal diodes to VCC and ground. MM74HCT devices are intended to interface between TTL and NMOS components and standard CMOS devices. These parts are also plug-in replacements for LS-TTL devices and can be used to reduce power con- sumption in existing designs.

Ordering Information

Package

Order Number Number Package Description MM74HCT05M M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150"

Narrow

MM74HCT05SJ M14D 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide MM74HCT05MTC MTC14 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153,

4.4mm Wide

MM74HCT05N N14A 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering number.

All packages are lead free per JEDEC: J-STD-020B standard.

©1 984 Fairchild Semiconductor Corporation www.fairchildsemi.com MM 74HCT05 Rev. 1.5.0

Page Summary Contents For Fairchild MM74HCT05 Hex Inverter (Open Drain) Data Sheet

Page 1 74H 05 — ex Inverter (O en rain March 2008 MM74HCT05 Hex Inverter (Open Drain) Features General Description Open drain for wire-NOR function The MM74HCT05 is a logic function fabricated by using LS-TT...
Page 2 74H 05 — ex Inverter (O en rain Connection Diagram Top View Logic Diagram Typical Application ©1 984 Fairchild Semiconductor Corporation www.fairchildsemi.com MM 74HCT05 Rev. 1.5.0
Page 3 74H 05 — ex Inverter (O en rain Absolute Maximum Ratings(1) Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended oper...
Page 4 74H 05 — ex Inverter (O en rain DC Electrical Characteristics (VCC = 5V ± 10% unless otherwise specified) TA = –40°C TA = 25°C to 85°C Symbol Parameter Conditions Guaranteed Limits Units Typ. VIH Mini...
Page 5 74H 05 — ex Inverter (O en rain Physical Dimensions PIN ONE INDICATOR 1.27 0.51 LAND PATTERN RECOMMENDATION 0.25 BC 1.75 MAX SEE DETAIL NOTES: UNLESS OTHERWISE SPECIFIED A) THIS PACKAGE CONFORMS TO JE...
Page 6 74H 05 — ex Inverter (O en rain Physical Dimensions (Continued) Figure 2. 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide Package drawings are provided as a service to customers consider...
Page 7 74H 05 — ex Inverter (O en rain Physical Dimensions (Continued) 0.43 TYP 0.65 12.00°TOP R0.09 min A. CONFORMS TO JEDEC REGISTRATION MO-153, R0.09min VARIATION AB, REF NOTE 1.00 B. DIMENSIONS ARE IN MI...
Page 8 74H 05 — ex Inverter (O en rain Physical Dimensions (Continued) 5.33 MAX 0.38 MIN NOTES: UNLESS OTHERWISE SPECIFIED THIS PACKAGE CONFORMS TO A) JEDEC MS-001 VARIATION BA B) ALL DIMENSIONS ARE IN MILLI...
Page 9 74H 05 — ex Inverter (O en rain TRADEMARKS The following includes registered and unregistered trademarks and service marks, owned by Fairchild Semiconductor and/or its global subsidiaries, and is not ...

Manual Details

Brand Fairchild
Pages 9
File Size 336.84 KB
Published June 17, 2026
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Frequently Asked Questions

What is the main function of the MM74HCT05?

It's a hex inverter with open drain outputs for wire-NOR functions.

What voltage supply should I use?

Recommended supply voltage is 4.5V to 5.5V.

How does it interface with other logic families?

It's LS-TTL compatible and interfaces between TTL/NMOS and CMOS.