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HEF4049BT

Hex inverting buffers

The HEF4049B provides six inverting buffers with high current output capability suitable for driving TTL or high capacitive loads. Since input voltages in excess of the buffers supply voltage are permitted, the buffers may also be used to convert logic levels of up to 15 V to standard TTL levels.

It operates over a recommended VDD power supply range of 3 V to 15 V referenced to VSS (usually ground). Unused inputs must be connected to VDD, VSS, or another input.

Features and benefits

  • Accepts input voltages in excess of the supply voltage

  • Fully static operation

  • 5 V, 10 V, and 15 V parametric ratings

  • Standardized symmetrical output characteristics

  • Specified from -40 °C to +85 °C

  • Complies with JEDEC standard JESD 13-B

Applications

  • LOCMOS (Local Oxidation CMOS) to DTL/TTL converter

  • HIGH sink current for driving two TTL loads

  • HIGH-to-LOW level logic conversion

Parametrics

Type number Product status VCC (V) Logic switching levels Output drive capability (mA) fmax (MHz) Nr of bits Power dissipation considerations Tamb (°C) Rth(j-a) (K/W) Rth(j-c) (K/W) Package name
HEF4049BT Production 3.0 - 15 CMOS -3 / +20 10 6 medium -40~85 84 43.1 SO16

PCB Symbol, Footprint and 3D Model

Model Name Description

Package

Type number Orderable part number, (Ordering code (12NC)) Status Marking Package Package information Reflow-/Wave soldering Packing
HEF4049BT HEF4049BT,653
(933372920653)
Active HEF4049BT SOT109-1
SO16
(SOT109-1)
SOT109-1 SO-SOJ-REFLOW
SO-SOJ-WAVE
WAVE_BG-BD-1
Not available

All type numbers in the table below are discontinued. See the table Discontinuation information for more information.

Type number Orderable part number, (Ordering code (12NC)) Status Marking Package Package information Reflow-/Wave soldering Packing
HEF4049BT HEF4049BT,652
(933372920652)
Withdrawn / End-of-life HEF4049BT SOT109-1
SO16
(SOT109-1)
SOT109-1 SO-SOJ-REFLOW
SO-SOJ-WAVE
WAVE_BG-BD-1
SOT109-1_652

Environmental information

Type number Orderable part number Chemical content RoHS RHF-indicator
HEF4049BT HEF4049BT,653 HEF4049BT rohs rhf rhf

All type numbers in the table below are discontinued. See the table Discontinuation information for more information.

Type number Orderable part number Chemical content RoHS RHF-indicator
HEF4049BT HEF4049BT,652 HEF4049BT rohs rhf rhf
Quality and reliability disclaimer

Documentation (10)

File name Title Type Date
HEF4049B Hex inverting buffers Data sheet 2017-03-17
AN11051 Pin FMEA HEF4000 family Application note 2019-01-09
SOT109-1 3D model for products with SOT109-1 package Design support 2020-01-22
Nexperia_package_poster Nexperia package poster Leaflet 2020-05-15
SO16_SOT109-1_mk plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.35 mm body Marcom graphics 2017-01-28
SOT109-1 plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.75 mm body Package information 2023-11-07
HEF4049BT_Nexperia_Product_Reliability HEF4049BT Nexperia Product Reliability Quality document 2023-05-29
SO-SOJ-REFLOW Footprint for reflow soldering Reflow soldering 2009-10-08
SO-SOJ-WAVE Footprint for wave soldering Wave soldering 2009-10-08
WAVE_BG-BD-1 Wave soldering profile Wave soldering 2021-09-08

Support

If you are in need of design/technical support, let us know and fill in the answer form we'll get back to you shortly.

Models

File name Title Type Date
SOT109-1 3D model for products with SOT109-1 package Design support 2020-01-22

PCB Symbol, Footprint and 3D Model

Model Name Description

Ordering, pricing & availability

Type number Orderable part number Ordering code (12NC) Status Packing Packing Quantity Buy online
HEF4049BT HEF4049BT,653 933372920653 Active SOT109-1_653 2,500 Order product

Sample

As a Nexperia customer you can order samples via our sales organization or directly via our Online Sample Store: https://extranet.nexperia.com.

Sample orders normally take 2-4 days for delivery.

If you do not have a direct account with Nexperia our network of global and regional distributors is available and equipped to support you with Nexperia samples.

How does it work?

The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
HEF4049BT HEF4049BT,653 933372920653 SOT109-1 Order product