HEF40244B
Octal buffers with 3-state outputs
The HEF40244B is an 8-bit buffer/line driver with 3-state outputs. The device can be used as two 4-bit buffers or one 8-bit buffer. The device features two output enables (1OE and 2OE), each controlling four of the 3-state outputs. A HIGH on nOE causes the outputs to assume a high-impedance OFF-state. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.
Features and benefits
Wide supply voltage range from 3.0 V to 15.0 V
CMOS low power dissipation
High noise immunity
Complies with JEDEC standard JESD 13-B
ESD protection
HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V
CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V
Specified from −40 °C to +85 °C
Parametrics
Type number | VCC (V) | Logic switching levels | Output drive capability (mA) | fmax (MHz) | Nr of bits | Power dissipation considerations | Tamb (°C) | Package name |
---|---|---|---|---|---|---|---|---|
HEF40244BT | 3.0 - 15 | CMOS | -62 / +45 | 10 | 8 | medium | -40~85 | SO20 |
Package
Type number | Orderable part number, (Ordering code (12NC)) | Status | Marking | Package | Package information | Reflow-/Wave soldering | Packing |
---|---|---|---|---|---|---|---|
HEF40244BT | HEF40244BT,653 (933638680653) |
Active | HEF40244BT |
SO20 (SOT163-1) |
SOT163-1 |
WAVE_BG-BD-1
|
Not available |
All type numbers in the table below are discontinued.
Type number | Orderable part number, (Ordering code (12NC)) | Status | Marking | Package | Package information | Reflow-/Wave soldering | Packing |
---|---|---|---|---|---|---|---|
HEF40244BT | HEF40244BT,652 (933638680652) |
Withdrawn / End-of-life | HEF40244BT |
SO20 (SOT163-1) |
SOT163-1 |
WAVE_BG-BD-1
|
Not available |
Environmental information
Type number | Orderable part number | Chemical content | RoHS | RHF-indicator |
---|---|---|---|---|
HEF40244BT | HEF40244BT,653 | HEF40244BT |
All type numbers in the table below are discontinued.
Type number | Orderable part number | Chemical content | RoHS | RHF-indicator |
---|---|---|---|---|
HEF40244BT | HEF40244BT,652 | HEF40244BT |
Documentation (6)
File name | Title | Type | Date |
---|---|---|---|
HEF40244B | Octal buffers with 3-state outputs | Data sheet | 2024-08-08 |
SOT163-1 | 3D model for products with SOT163-1 package | Design support | 2020-01-22 |
Nexperia_package_poster | Nexperia package poster | Leaflet | 2020-05-15 |
SOT163-1 | plastic, small outline package; 20 leads; 1.27 mm pitch; 12.8 mm x 7.5 mm x 2.65 mm body | Package information | 2022-06-20 |
Nexperia_Selection_guide_2023 | Nexperia Selection Guide 2023 | Selection guide | 2023-05-10 |
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 |
---|---|---|---|
SOT163-1 | 3D model for products with SOT163-1 package | Design support | 2020-01-22 |
Ordering, pricing & availability
Sample
As a Nexperia customer you can order samples via our sales organization.
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. Check out the list of official distributors.