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NXP Semiconductors |
74VHC126; 74VHCT126
Quad buffer/line driver; 3-state
Rev. 01 — 13 August 2009
Product data sheet
1. General description
The 74VHC126; 74VHCT126 are high-speed Si-gate CMOS devices and are pin
compatible with Low-power Schottky TTL (LSTTL). They are specified in compliance with
JEDEC standard No. 7-A.
The 74VHC126; 74VHCT126 provide 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 74VHC126; 74VHCT126 are identical to the 74VHC125; 74VHCT125 but have active
HIGH output enable inputs.
2. Features
I Balanced propagation delays
I All inputs have Schmitt-trigger action
I Inputs accept voltages higher than VCC
I Input levels:
N The 74VHC126 operates with CMOS input level
N The 74VHCT126 operates with TTL input level
I ESD protection:
N HBM JESD22-A114E exceeds 2000 V
N MM JESD22-A115-A exceeds 200 V
N CDM JESD22-C101C exceeds 1000 V
I Multiple package options
I Specified from −40 °C to +85 °C and from −40 °C to +125 °C
NXP Semiconductors
74VHC126; 74VHCT126
Quad buffer/line driver; 3-state
3. Ordering information
Table 1. Ordering information
Type number Package
Temperature range Name
Description
74VHC126D
74VHCT126D
−40 °C to +125 °C SO14
plastic small outline package; 14 leads;
body width 3.9 mm
74VHC126PW −40 °C to +125 °C
74VHCT126PW
TSSOP14 plastic thin shrink small outline package; 14 leads;
body width 4.4 mm
74VHC126BQ −40 °C to +125 °C
74VHCT126BQ
DHVQFN14 plastic dual in-line compatible thermal enhanced very
thin quad flat package; no leads; 14 terminals;
body 2.5 × 3 × 0.85 mm
Version
SOT108-1
SOT402-1
SOT762-1
4. Functional diagram
Fig 1. Functional diagram
nA
nOE
Fig 2. Logic symbol
2 1A
1Y 3
1 1OE
5 2A
2Y 6
4 2OE
9 3A
3Y 8
10 3OE
12 4A
4Y 11
13 4OE
mna235
nY
mna234
21
1 EN1
5
4
3
6
9
8
10
12
11
13
mna236
Fig 3. IEC logic symbol
74VHC_VHCT126_1
Product data sheet
Rev. 01 — 13 August 2009
© NXP B.V. 2009. All rights reserved.
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