Fairchild 74AC04, 74ACT04 service manual

74AC14, 74ACT14 Hex Inverter with Schmitt Trigger Input

74AC14, 74ACT14 — Hex Inverter with Schmitt Trigger Input

February 2011

Features

■ I

reduced by 50%

CC

■ Outputs source/sink 24mA

■ 74ACT14 has TTL-compatible inputs

General Description

The 74AC14 and 74ACT14 contain six inverter gates each with a Schmitt trigger input. They are capable of transforming slowly changing input signals into sharply defined, jitter-free output signals. In addition, they have a greater noise margin than conventional inverters.

The 74AC14 and 74ACT14 have hysteresis between the positive-going and negative-going input thresholds (typically 1.0V) which is determined internally by transistor ratios and is essentially insensitive to temperature and supply voltage variations.

Ordering Information

Order

Number

74AC14SC M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow 74AC14SJ M14D 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 74AC14MTC MTC14 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide 74ACT14SC M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow 74ACT14MTC MTC14 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide

Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering number.

Package

Number Package Description

74AC14, 74ACT14 — Hex Inverter with Schmitt Trigger Input

Connection Diagram

Pin Description

Pin Names Description

I

n

O

n

Inputs Outputs

Logic Symbol

IEEE/IEC

Function Table

Input Output

AO

LH

HL

Absolute Maximum Ratings

Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only.

Symbol Parameter Rating

V

CC

I

IK

V

I

OK

V

O

I

O

or I

I

CC

T

STG

T

Supply Voltage –0.5V to +7.0V DC Input Diode Current

V

 –0.5V –20mA

I

 VCC + 1.5 +20mA

V

I

DC Input Voltage –0.5V to VCC + 1.5V

I

DC Output Diode Current

VO  –0.5V –20mA

 VCC + 0.5V +20mA

V

O

DC Output Voltage –0.5V to VCC + 0.5V DC Output Source or Sink Current ±50mA DC VCC or Ground Current per Output Pin ±50mA

GND

Storage Temperature –65°C to +150°C Junction Temperature 140°C

J

74AC14, 74ACT14 — Hex Inverter with Schmitt Trigger Input

Recommended Operating Conditions

The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recommend exceeding them or designing to absolute maximum ratings.

Symbol Parameter Rating

V

CC

V

O

T

A

Supply Voltage

AC 2.0V to 6.0V ACT 4.5V to 5.5V

Input Voltage 0V to V

I

Output Voltage 0V to V Operating Temperature –40°C to +85°C

CC CC