Important notice
Dear Customer,
On 7 February 2017 the former NXP Standard Product business became a new company with the
tradename Nexperia. Nexperia is an industry leading supplier of Discrete, Logic and PowerMOS
semiconductors with its focus on the automotive, industrial, computing, consumer and wearable
application markets
In data sheets and application notes which still contain NXP or Philips Semiconductors references, use
the references to Nexperia, as shown below.
Instead of http://www.nxp.com, http://www.philips.com/ or http://www.semiconductors.philips.com/,
use http://www.nexperia.com
Instead of sales.addresses@www.nxp.com or sales.addresses@www.semiconductors.philips.com, use
salesaddresses@nexperia.com (email)
Replace the copyright notice at the bottom of each page or elsewhere in the document, depending on
the version, as shown below:
- © NXP N.V. (year). All rights reserved or © Koninklijke Philips Electronics N.V. (year). All rights
reserved
Should be replaced with:
- © Nexperia B.V. (year). All rights reserved.
If you have any questions related to the data sheet, please contact our nearest sales office via e-mail
or telephone (details via salesaddresses@nexperia.com). Thank you for your cooperation and
understanding,
Kind regards,
Team Nexperia
1. General description
The 74AHC126; 74AHCT126 is a high-speed Si-gate CMOS device and is pin compatible
with Low-power Schottky TTL (LSTTL). It is specified in compliance with JEDEC standard
No. 7-A.
The 74AHC126; 74AHCT126 provides four non-inverting buffer/line drivers with 3-state
outputs. The 3-state outputs (nY) are controlled by the output enable input (nOE).
A LOW-level at pin nOE causes the outputs to assume a high-impedance OFF-state.
The 74AHC126; 74AHCT126 is identical to the 74AHC125; 74AHCT125 but has active
HIGH output enable inputs.
2. Features
n Balanced propagation delays
n All inputs have Schmitt-trigger action
n Inputs accept voltages higher than V
CC
n Input levels:
u For 74AHC126: CMOS level
u For 74AHCT126: TTL level
n ESD protection:
u HBM JESD22-A114E exceeds 2000 V
u MM JESD22-A115-A exceeds 200 V
u CDM JESD22-C101C exceeds 1000 V
n Multiple package options
n Specified from 40 °C to +85 °C and from 40 °C to +125 °C
74AHC126; 74AHCT126
Quad buffer/line driver; 3-state
Rev. 04 — 12 August 2009 Product data sheet
74AHC_AHCT126_4 © NXP B.V. 2009. All rights reserved.
Product data sheet Rev. 04 — 12 August 2009 2 of 15
NXP Semiconductors
74AHC126; 74AHCT126
Quad buffer/line driver; 3-state
3. Ordering information
4. Functional diagram
Table 1. Ordering information
Type number Package
Temperature range Name Description Version
74AHC126D 40 °C to +125 °C SO14 plastic small outline package; 14 leads;
body width 3.9 mm
SOT108-1
74AHCT126D
74AHC126PW 40 °C to +125 °C TSSOP14 plastic thin shrink small outline package; 14 leads;
body width 4.4 mm
SOT402-1
74AHCT126PW
74AHC126BQ 40 °C to +125 °C DHVQFN14 plastic dual in-line compatible thermal enhanced very
thin quad flat package; no leads; 14 terminals;
body 2.5 × 3 × 0.85 mm
SOT762-1
74AHCT126BQ
Fig 1. Functional diagram
mna235
1A 1Y
2
1
3
1OE
2A 2Y
5
4
6
2OE
3A 3Y
9
10
8
3OE
4A 4Y
12
13
11
4OE
Fig 2. Logic symbol Fig 3. IEC logic symbol
mna234
nOE
nA
nY
mna236
1
EN1
1
3
2
4
6
5
10
8
9
13
11
12

74AHC126BQ,115

Mfr. #:
Manufacturer:
Nexperia
Description:
Buffers & Line Drivers QUAD BUFFER/LINE DRIVER 3-S
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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