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Fairchild Semiconductor |
January 2008
74AC125, 74ACT125
Quad Buffer with 3-STATE Outputs
Features
■ ICC reduced by 50%
■ Outputs source/sink 24mA
■ ACT125 has TTL-compatible outputs
General Description
The AC/ACT125 contains four independent non-inverting
buffers with 3-STATE outputs.
Ordering Information
Order
Number
74AC125SC
74AC125SJ
74AC125MTC
74AC125PC
74ACT125SC
74ACT125SJ
74ACT125MTC
74ACT125PC
Package
Number
M14A
M14D
MTC14
N14A
M14A
M14D
MTC14
N14A
Package Description
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
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
Pin Names
An, Bn
On
Description
Inputs
Outputs
©1988 Fairchild Semiconductor Corporation
74AC125, 74ACT125 Rev. 1.4.1
Function Table
Inputs
An Bn
LL
LH
HX
Output
On
L
H
Z
H = HIGH Voltage Level, L = LOW Voltage Level
Z = HIGH Impedance, X = Immaterial
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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
VCC
IIK
VI
IOK
VO
IO
ICC or IGND
TSTG
TJ
Supply Voltage
DC Input Diode Current
VI = –0.5V
VI = VCC + 0.5
DC Input Voltage
DC Output Diode Current
VO = –0.5V
VO = VCC + 0.5V
DC Output Voltage
DC Output Source or Sink Current
DC VCC or Ground Current per Output Pin
Storage Temperature
Junction Temperature
Rating
–0.5V to +7.0V
–20mA
+20mA
–0.5V to VCC + 0.5V
–20mA
+20mA
–0.5V to VCC + 0.5V
±50mA
±50mA
–65°C to +150°C
140°C
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
VCC
VI
VO
TA
∆V / ∆t
∆V / ∆t
Parameter
Supply Voltage
AC
ACT
Input Voltage
Output Voltage
Operating Temperature
Minimum Input Edge Rate, AC Devices:
VIN from 30% to 70% of VCC, VCC @ 3.3V, 4.5V, 5.5V
Minimum Input Edge Rate, ACT Devices:
VIN from 0.8V to 2.0V, VCC @ 4.5V, 5.5V
Rating
2.0V to 6.0V
4.5V to 5.5V
0V to VCC
0V to VCC
–40°C to +85°C
125mV/ns
125mV/ns
©1988 Fairchild Semiconductor Corporation
74AC125, 74ACT125 Rev. 1.4.1
2
www.fairchildsemi.com
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