74LVT244B; 74LVTH244B
3.3 V octal buffer/line driver; 3-state
The 74LVT244B; 74LVTH244B 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. Bus hold data inputs eliminate the need for external pull-up resistors to define unused inputs.
Features and benefits
Octal bus interface
3-state buffers
Speed upgrade of 74LVT244A
Wide supply voltage range from 2.7 to 3.6 V
BiCMOS high speed and output drive
Output capability: +64 mA and -32 mA
Direct interface with TTL levels
Overvoltage tolerant inputs to 5.5 V
Input and output interface capability to systems at 5 V supply
Bus hold data inputs eliminate need for external pull-up resistors to hold unused inputs
No bus current loading when output is tied to 5 V bus
Power-up 3-state
Live insertion and extraction permitted
IOFF circuitry provides partial Power-down mode operation
Latch-up performance exceeds 500 mA per JESD 78 Class II Level B
Complies with JEDEC standards
JESD8C (2.7 V to 3.6 V)
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 |
---|---|---|---|---|---|---|---|---|
74LVT244BD | 2.7 - 3.6 | TTL | -32 / +64 | 150 | 8 | medium | -40~85 | SO20 |
74LVT244BPW | 2.7 - 3.6 | TTL | -32 / +64 | 150 | 8 | medium | -40~85 | TSSOP20 |
74LVTH244BD | 2.7 - 3.6 | TTL | -32 / +64 | 150 | 8 | medium | -40~85 | SO20 |
74LVTH244BPW | 2.7 - 3.6 | TTL | -32 / +64 | 150 | 8 | medium | -40~85 | TSSOP20 |
Package
Type number | Orderable part number, (Ordering code (12NC)) | Status | Marking | Package | Package information | Reflow-/Wave soldering | Packing |
---|---|---|---|---|---|---|---|
74LVT244BD | 74LVT244BD,118 (935262791118) |
Active | 74LVT244BD |
SO20 (SOT163-1) |
SOT163-1 |
WAVE_BG-BD-1
|
SOT163-1_118 |
74LVT244BPW | 74LVT244BPW,118 (935262793118) |
Active | LVT244B |
TSSOP20 (SOT360-1) |
SOT360-1 |
SSOP-TSSOP-VSO-WAVE
|
SOT360-1_118 |
74LVTH244BD | 74LVTH244BD,118 (935281741118) |
Active | 74LVTH244BD |
SO20 (SOT163-1) |
SOT163-1 |
WAVE_BG-BD-1
|
SOT163-1_118 |
74LVTH244BPW | 74LVTH244BPW,118 (935281743118) |
Active | VTH244B |
TSSOP20 (SOT360-1) |
SOT360-1 |
SSOP-TSSOP-VSO-WAVE
|
SOT360-1_118 |
Environmental information
Type number | Orderable part number | Chemical content | RoHS | RHF-indicator |
---|---|---|---|---|
74LVT244BD | 74LVT244BD,118 | 74LVT244BD | ||
74LVT244BPW | 74LVT244BPW,118 | 74LVT244BPW | ||
74LVTH244BD | 74LVTH244BD,118 | 74LVTH244BD | ||
74LVTH244BPW | 74LVTH244BPW,118 | 74LVTH244BPW |
Documentation (12)
File name | Title | Type | Date |
---|---|---|---|
74LVT_LVTH244B | 3.3 V octal buffer/line driver; 3-state | Data sheet | 2024-07-08 |
001aae463 | Block diagram: 74LVT244BD, 74LVT244BDB, 74LVT244BPW, 74LVTH244BD, 74LVTH244BDB, 74LVTH244BPW | Block diagram | 2009-11-04 |
mna825 | Block diagram: 74LVT244BD, 74LVT244BDB, 74LVT244BPW, 74LVTH244BD, 74LVTH244BDB, 74LVTH244BPW, 74LVT244AD, 74LVT244ADB, 74LVT244APW, 74LVTH244AD, 74LVTH244ADB, 74LVTH244APW | Block diagram | 2009-11-04 |
SOT163-1 | 3D model for products with SOT163-1 package | Design support | 2020-01-22 |
SOT360-1 | 3D model for products with SOT360-1 package | Design support | 2020-01-22 |
lvt244b | lvt244b IBIS model | IBIS model | 2013-04-09 |
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 |
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 |
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 |
WAVE_BG-BD-1 | Wave soldering profile | Wave soldering | 2021-09-08 |
SSOP-TSSOP-VSO-WAVE | Footprint for wave soldering | Wave soldering | 2009-10-08 |
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.
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.