74AC125, 74ACT125 Quad Buffer with 3-STATE Outputs
January 2008
74AC125, 74ACT125
Quad Buffer with 3-STATE Outputs
Features General Description
The AC/ACT125 contains four independent non-inverting
I reduced by 50%
CC
buffers with 3-STATE outputs.
Outputs source/sink 24mA
ACT125 has TTL-compatible outputs
Ordering Information
Order Package
Number Number Package Description
74AC125SC M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
74AC125SJ M14D 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74AC125MTC MTC14 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
74AC125PC N14A 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
74ACT125SC M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
74ACT125SJ M14D 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74ACT125MTC MTC14 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
74ACT125PC 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.
Connection Diagram Logic Symbol
IEEE/IEC
Pin Description
Function Table
Pin Names Description
Inputs Output
A , B Inputs
n n
A B O
n n n
O Outputs
n
LL L
LH H
HX Z
H = HIGH Voltage Level, L = LOW Voltage Level
Z = HIGH Impedance, X = Immaterial
1988 Fairchild Semiconductor Corporation www.fairchildsemi.com
74AC125, 74ACT125 Rev. 1.4.174AC125, 74ACT125 Quad Buffer with 3-STATE Outputs
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 Supply Voltage 0.5V to +7.0V
CC
DC Input Diode Current
I
IK
V
= 0.5V 20mA
I
V = V + 0.5 +20mA
I CC
DC Input Voltage 0.5V to V + 0.5V
V
I CC
I DC Output Diode Current
OK
= 0.5V 20mA
V
O
V = V + 0.5V +20mA
O CC
V DC Output Voltage 0.5V to V + 0.5V
O CC
DC Output Source or Sink Current 50mA
I
O
I or I DC V or Ground Current per Output Pin 50mA
CC GND CC
T Storage Temperature 65C to +150C
STG
Junction Temperature 140C
T
J
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 Supply Voltage
CC
AC 2.0V to 6.0V
ACT 4.5V to 5.5V
Input Voltage 0V to V
V
I CC
V Output Voltage 0V to V
O CC
T Operating Temperature 40C to +85C
A
V / t Minimum Input Edge Rate, AC Devices: 125mV/ns
V from 30% to 70% of V , V @ 3.3V, 4.5V, 5.5V
IN CC CC
125mV/ns
V / t Minimum Input Edge Rate, ACT Devices:
from 0.8V to 2.0V, V @ 4.5V, 5.5V
V
IN CC
1988 Fairchild Semiconductor Corporation www.fairchildsemi.com
74AC125, 74ACT125 Rev. 1.4.1 2