Fairchild 74F125 Data Handbook
Summary
The 74F125 is a versatile Quad Buffer IC designed for digital signal enhancement, buffering, and isolation. Featuring robust 3-state outputs and high impedance inputs, it ensures signal integrity in complex electronic systems. This technical guide provides circuit designers with essential specifications, including detailed absolute maximum ratings, DC/AC electrical characteristics, and various package options (SOIC, SOP, PDIP). It is an indispensable resource for engineers implementing reliable logic buffers into modern digital circuits.
Page 1 Text Content
74F 125 Q ad ffer (3-S TA
April 1988 Revised July 1999
74F125 Quad Buffer (3-STATE) Features High impedance base inputs for reduced loading
Ordering Code: Order Number Package Number Package Description 74F125SC M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow 74F125SJ M14D 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 74F125PC N14A 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbol Connection Diagram
IEEE/IEC
Unit Loading/Fan Out
U.L. Input IIH/IIL
Pin Names Description
HIGH/LOW Output IOH/IOL
An, Bn Inputs 1.0/0.033 20 µA/−20 µA
On Outputs 600/106.6 (80) −12 m A/64 m A (48 m A)
Function Table
Inputs Output
An Bn
H = HIGH Voltage Level L = LOW Voltage Level Z = High Impedance X = Immaterial
© 1999 Fairchild Semiconductor Corporation DS009475 www.fairchildsemi.com
Page Summary Contents For Fairchild 74F125 Data Handbook
Manual Details
| Brand | Fairchild |
|---|---|
| Pages | 4 |
| File Size | 49.93 KB |
| Published | May 28, 2026 |
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Frequently Asked Questions
What temperature range is recommended for ambient operation?
Free Air Ambient Temperature should be between 0°C and +70°C.
Are there different physical package options available?
Yes, packages include SOIC (M14A), SOP (M14D), and PDIP (N14A).
What voltage range is required for the supply input?
The recommended Supply Voltage is +4.5V to +5.5V.
Can this device be used in life support systems?
No, Fairchild’s products are not authorized for use as critical components in life support devices without express written approval.