ST M54 HC2 7 9 M7 4HC2 7 9 March 1993 QUAD S - R LATCH Manual

M54/74HC279 is a high speed CMOS QUAD S-R LATCH fabricated in silicon gate C2MOS technology.


ST M54 HC2 7 9 M7 4HC2 7 9 March 1993 QUAD S - R LATCH Manual - cover page
Brand
STMicroelectronics
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
10
File format
PDF
File size
230 KB
Published
07 May, 2012
Updated
30 September, 2023
Model
M54
MD5 checksum
CE67F832A4CFFBB62B60C49C9CA30F6F

About this manual

The M54HC279 is a high‑speed CMOS quad S‑R latch fabricated in silicon‑gate CMOS technology. It combines LSTTL‑level speed with true CMOS low‑power consumption and includes input protection against static discharge and transient over‑voltage.

The device operates from a supply voltage of –0.5 V to +7 V, supports a propagation delay as low as 2 ns (typical), and can drive up to 10 LSTTL loads. It is specified for temperatures from –55 °C to +125 °C and offers symmetrical output impedance and balanced propagation delays.

What's inside

  • Description
  • Pin Description
  • Absolute Maximum Ratings
  • Recommended Operating Conditions
  • DC Specifications
  • AC Electrical Characteristics
  • Mechanical Data
  • Information

Specifications

Supply voltage range-0.5 V to +7 V
Output drive capability10 LSTTL loads
Power dissipation500 mW
Operating temperature range-55 °C to +125 °C

Frequently asked questions

What supply voltage range can the M54HC279 operate over?

It can operate with a supply voltage from –0.5 V up to +7 V.

How many LSTTL loads can the output drive?

The output can drive up to 10 LSTTL loads.

What is the recommended operating temperature range?

The device is rated for temperatures from –55 °C to +125 °C.

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