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74HCT244PW

Octal buffer/line driver; 3-state

The 74HC244; 74HCT244 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 that enable the use of current limiting resistors to interface inputs to voltages in excess of VCC.

Features and benefits

  • Wide supply voltage range from 2.0 to 6.0 V

  • CMOS low power dissipation

  • High noise immunity

  • Latch-up performance exceeds 100 mA per JESD 78 Class II Level B

  • Input levels:

    • For 74HC244: CMOS level

    • For 74HCT244: TTL level

  • Octal bus interface

  • Non-inverting 3-state outputs

  • Complies with JEDEC standards:

    • JESD8C (2.7 V to 3.6 V)

    • JESD7A (2.0 V to 6.0 V)

  • ESD protection:

    • HBM JESD22-A114F exceeds 2000 V

    • MM JESD22-A115-A exceeds 200 V

  • Multiple package options

  • Specified from -40 °C to +85 °C and -40 °C to +125 °C

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
74HCT244PW Production 4.5 - 5.5 TTL ± 6 36 8 low -40~125 100 44.9 TSSOP20

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
74HCT244PW 74HCT244PW,118
(935165220118)
Active HCT244 SOT360-1
TSSOP20
(SOT360-1)
SOT360-1 SSOP-TSSOP-VSO-WAVE
SOT360-1_118

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
74HCT244PW 74HCT244PW,112
(935165220112)
Withdrawn / End-of-life HCT244 SOT360-1
TSSOP20
(SOT360-1)
SOT360-1 SSOP-TSSOP-VSO-WAVE
Not available

Environmental information

Type number Orderable part number Chemical content RoHS RHF-indicator
74HCT244PW 74HCT244PW,118 74HCT244PW 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
74HCT244PW 74HCT244PW,112 74HCT244PW rohs rhf rhf
Quality and reliability disclaimer

Documentation (13)

File name Title Type Date
74HC_HCT244 Octal buffer/line driver; 3-state Data sheet 2021-07-28
AN11044 Pin FMEA 74HC/74HCT family Application note 2019-01-09
AN263 Power considerations when using CMOS and BiCMOS logic devices Application note 2023-02-07
SOT360-1 3D model for products with SOT360-1 package Design support 2020-01-22
Nexperia_package_poster Nexperia package poster Leaflet 2020-05-15
TSSOP20_SOT360-1_mk plastic, thin shrink small outline package; 20 leads; 0.65 mm pitch; 6.5 mm x 4.4 mm x 1.1 mm body Marcom graphics 2017-01-28
D12_PC_sch_ver2_0 D12_PC_sch_ver2_0 Other type 2023-09-12
SOT360-1 plastic, thin shrink small outline package; 20 leads; 0.65 mm pitch; 6.5 mm x 4.4 mm x 1.1 mm body Package information 2022-06-21
SOT360-1_118 TSSOP20; Reel pack for SMD, 13''; Q1/T1 product orientation Packing information 2023-08-30
74HCT244PW_Nexperia_Product_Reliability 74HCT244PW Nexperia Product Reliability Quality document 2023-05-29
hc HC/HCT Spice model SPICE model 2022-02-17
HCT_USER_GUIDE HC/T User Guide User manual 1997-10-31
SSOP-TSSOP-VSO-WAVE Footprint for wave soldering Wave soldering 2009-10-08

Support

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Models

File name Title Type Date
hc HC/HCT Spice model SPICE model 2022-02-17
SOT360-1 3D model for products with SOT360-1 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
74HCT244PW 74HCT244PW,118 935165220118 Active SOT360-1_118 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
74HCT244PW 74HCT244PW,118 935165220118 SOT360-1 Order product