SN74LVC244ADGVRE4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
SN74LVC244ADGVRE4 is an 8-channel non-inverting 3-state buffer and bus driver in the LVC CMOS logic family, packaged in a 20-pin TVSOP. It operates from 1.65 V to 5.5 V with a 24 mA output drive and active-low output enable per 4-channel bank. Suitable for address/data bus buffering and logic-level translation in automotive and industrial systems.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- SN74LVC244ADGVRE4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SN74LVC244ADGVRE4?
- 8-channel non-inverting 3-state buffer with 24 mA output drive current
- Wide 1.65 V to 5.5 V supply range enabling 1.8 V, 3.3 V, and 5 V bus interfacing
- Dual active-low output-enable controls for independent 4-channel bank switching
- LVC family with propagation delay below 5 ns at 3.3 V supply
- 20-pin TVSOP package for compact PCB footprints in space-constrained designs
- E4 suffix indicating AEC-Q100 automotive-grade qualification
What is SN74LVC244ADGVRE4 used for?
SN74LVC244ADGVRE4 is used in automotive ECU address and data bus buffering where AEC-Q100 qualification and wide supply-voltage range are required. It enables logic-level translation between 1.8 V microcontroller I/O and 3.3 V peripheral buses in embedded systems, providing isolation and drive-current amplification for multi-device shared buses. Industrial PLCs and sensor interface boards also use it to buffer 8 parallel data lines between processors and off-board connectors susceptible to ESD and bus loading.
What are the specifications of SN74LVC244ADGVRE4?
| YTEOL | 0 |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | LVC/LCX/Z |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Max I(ol) | 0.024A |
| Number of Bits | 4 |
| Number of Functions | 2 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP20,.25,16 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.04mA |
| Prop. Delay@Nom-Sup | 7.2ns |
| Propagation Delay (tpd) | 16.4ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 3.6V |
| Supply Voltage-Min (Vsup) | 1.65V |
| Supply Voltage-Nom (Vsup) | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.4mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| HTS Code | 8542.39.00.60 |
Where can I find the SN74LVC244ADGVRE4 datasheet?
SN74LVC244ADGVRE4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74LVC244ADGVRE4?
Compatible alternatives and drop-in replacements for SN74LVC244ADGVRE4:
Bus Driver, LVC/LCX/Z Series, 8-Func, 4-Bit, True Output, CMOS, PDSO20
Bus Driver, LVC/LCX/Z Series, 8-Func, 4-Bit, True Output, CMOS, PDSO20
Bus Driver, LVC/LCX/Z Series, 8-Func, 4-Bit, True Output, CMOS, PDSO20
Bus Driver, LVC/LCX/Z Series, 8-Func, 4-Bit, True Output, CMOS, PDSO20
Bus Driver, LVC/LCX/Z Series, 8-Func, 4-Bit, True Output, CMOS, PDSO20
Frequently Asked Questions
Over what supply voltage range does SN74LVC244ADGVRE4 operate, and does it support 5 V bus signals?
SN74LVC244ADGVRE4 operates from 1.65 V to 5.5 V, making it compatible with 1.8 V, 2.5 V, 3.3 V, and 5 V bus environments. The wide supply range means a single device can buffer 5 V TTL-level bus signals while the logic core runs from a 3.3 V rail, enabling direct mixed-voltage interfacing without discrete level-shift resistors. The LVC logic family guarantees input voltage tolerance up to 5.5 V even when powered at lower supply voltages.
How are the 8 channels of SN74LVC244ADGVRE4 controlled?
The 8 channels are split into two independent 4-channel banks, each controlled by its own active-low output-enable (OE) pin. Asserting OE low enables all 4 outputs in that bank to drive the bus, while deasserting OE high puts those outputs into a high-impedance 3-state condition. This bank structure allows designers to gate half the channels without affecting the other half, which is useful for multiplexed address/data bus architectures where different sources share a common 8-bit bus.
What output drive current can SN74LVC244ADGVRE4 source and sink?
Each output of SN74LVC244ADGVRE4 can sink up to 24 mA (I_OL) and source up to 24 mA (I_OH) in the LVC logic family, which is sufficient to drive heavily loaded PCB traces and backplane buses with 50 pF or more of distributed capacitance. This 24 mA drive capability is more than double the 12 mA typically offered by standard LVCH or LCX buffer families, making it preferred for high-fan-out address buses in memory interfaces and FPGA I/O expansion boards.
Which automotive qualification standard applies to the E4 suffix of SN74LVC244ADGVRE4?
The E4 suffix indicates the device is qualified to AEC-Q100 Grade 4 and manufactured on a process meeting IATF 16949 quality requirements. This automotive qualification covers temperature testing, electrostatic discharge robustness, and moisture-sensitivity level screening, confirming the buffer meets the reliability standards required for in-vehicle electronics such as body control modules and ADAS sensor interfaces operating over the full -40°C to 125°C ambient temperature range.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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