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MM74HC125M

3-STATE Quad Buffers

Fairchild Semiconductor 

September 1983

Revised January 2005

MM74HC125/MM74HC126

3-STATE Quad Buffers

General Description

The MM74HC125 and MM74HC126 are general purpose

3-STATE high speed non-inverting buffers utilizing

advanced silicon-gate CMOS technology. They have high

drive current outputs which enable high speed operation

even when driving large bus capacitances. These circuits

possess the low power dissipation of CMOS circuitry, yet

have speeds comparable to low power Schottky TTL cir-

cuits. Both circuits are capable of driving up to 15 low

power Schottky inputs.

The MM74HC125 require the 3-STATE control input C to

be taken high to put the output into the high impedance

condition, whereas the MM74HC126 require the control

input to be low to put the output into high impedance.

All inputs are protected from damage due to static dis-

charge by diodes to VCC and ground.

Features

s Typical propagation delay: 13 ns

s Wide operating voltage range: 2–6V

s Low input current: 1 µA maximum

s Low quiescent current: 80 µA maximum (74HC)

s Fanout of 15 LS-TTL loads

Ordering Code:

Order Number

Package

Number

Package Description

MM74HC125M

M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow

MM74HC125SJ

M14D Pb-Free 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide

MM74HC125MTC

MTC14 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide

MM74HC125MTCX-NL

Pb-Free 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm

Wide

MM74HC125N

N14A 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide

MM74HC126M

M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow

MM74HC126MX_NL

M14A Pb-Free 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow

MM74HC126SJ

M14D Pb-Free 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide

MM74HC126MTC

MTC14 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide

MM74HC126MTCX_NL MTC14 Pb-Free 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm

Wide

MM74HC126N

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. (Tape and Reel not available in N14A.)

Pb-Free package per JEDEC J-STD-020B.

© 2005 Fairchild Semiconductor Corporation DS005308

www.fairchildsemi.com

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