SN74LVC07APWR - Hex Open-Drain Buffer 5.5V | TI | TSSOP-14
MPN: SN74LVC07APWR β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.42 | $0.42 |
| 10 | $0.34 | $3.40 |
| 100 | $0.26 | $26.00 |
| 500 | $0.22 | $110.00 |
| 1,000 | $0.19 | $190.00 |
SN74LVC07APWR Overview
A hex buffer is a logic IC containing six independent single-input, single-output buffer gates. Buffers strengthen a logic signal for fanout, level shifting, or drive purposes; within the voltage regulator of the signal chain hierarchy, they sit in the logic family of line drivers. The open-drain output variant omits the internal pull-up transistor, so each output can only sink current and must be pulled high by an external resistor, allowing wired-AND connections, bus sharing, and translation to a rail different from VCC.
Key features of the SN74LVC07APWR include the wide 1.65V to 5.5V VCC range, inputs and outputs tolerant of 5.5V regardless of VCC, a maximum tpd of 2.6 ns at 5V, and low ground bounce (typical VOLP) and VOHV overshoot performance specified at 3.3V and 25C. Latch-up performance exceeds 250 mA per JESD 17, and the device is specified from -40C to +125C.
Architecturally, the device uses TI's LVC (Low-Voltage CMOS) process, which balances speed with low static power consumption. Because outputs are open drain, multiple outputs can be tied together to share a common pull-up, implementing wired-OR/wired-AND logic without external gating. The 5.5V-tolerant inputs allow direct interfacing with 5V legacy logic even when VCC is at 3.3V or lower.
Typical applications include I2C-style open-drain bus buffering, level translation between 5V and 3.3V logic domains, LED driving through the pull-down sink, interrupt line combining, and legacy 5V system interfaces.
Design consideration: always include an external pull-up resistor on every open-drain output; the output is never actively driven high, and the pull-up value sets both the high-level rise time (with bus capacitance) and sink current.
This page synthesizes distributor pricing, drop-in alternatives, pinout data, and practical design notes not found in a single manufacturer datasheet.
Drop-in alternatives for SN74LVC07APWR β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with SN74LVC07APWR (same form factor and footprint) β differing in Logic Function, Package.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
SN74LVC07APWRG4
β Drop-Inβ In Stock
$0.08 / Unit
View Datasheet βSN74LVC07AQPWRQ1
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
74LVC07APW,16
β Drop-Inπ Reference alternative (not in catalog)
MC74LCX07DTR2
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
SN74LVC07APWR Maximum Ratings & Electrical Characteristics
| Logic Function | Hex Buffer/Driver, Non-Inverting |
| Number of Channels | 6 |
| Bits per Channel | 1 |
| Output Type | Open Drain |
| Supply Voltage Range | 1.65 V to 5.5 V |
| Input Voltage Tolerance | 5.5 V |
| Output Voltage Tolerance | 5.5 V |
| Max Propagation Delay | 2.6 ns at 5 V |
| Logic Family | LVC (Low-Voltage CMOS) |
| Latch-Up Performance | >250 mA per JESD 17 |
| Operating Temperature | -40C to +125C |
| Package | TSSOP (PW), 14 pins |
| Mounting Type | Surface Mount |
| Pin Count | 14 |
| RoHS Status | Compliant |
| Input Type | Standard CMOS |
SN74LVC07APWR Pin Configuration
| Pin 1 | 1A β Input, buffer 1 |
| Pin 2 | 1Y β Open-drain output, buffer 1 |
| Pin 3 | 2A β Input, buffer 2 |
| Pin 4 | 2Y β Open-drain output, buffer 2 |
| Pin 5 | 3A β Input, buffer 3 |
| Pin 6 | 3Y β Open-drain output, buffer 3 |
| Pin 7 | GND β Ground |
| Pin 8 | 4Y β Open-drain output, buffer 4 |
| Pin 9 | 4A β Input, buffer 4 |
| Pin 10 | 5Y β Open-drain output, buffer 5 |
| Pin 11 | 5A β Input, buffer 5 |
| Pin 12 | 6Y β Open-drain output, buffer 6 |
| Pin 13 | 6A β Input, buffer 6 |
| Pin 14 | VCC β Power supply, 1.65 V to 5.5 V |
Typical Applications
SN74LVC07APWR is suitable for 6 applications: I2C and Open-Drain Bus Buffering, 3.3V to 5V Logic Level Translation, Wired-AND Interrupt and Status Line Combining, LED Driving and Indicator Sinking, Legacy 5V System Interfaces and Glue Logic, Battery-Powered and Portable Electronics.
I2C and Open-Drain Bus Buffering
The SN74LVC07APWR fits open-drain bus buffering because its six outputs can only sink current, exactly matching I2C, SMBus, and PMBus signaling where devices share the bus through pull-ups. With a maximum propagation delay of 2.6 ns at 5V, the buffer adds negligible timing overhead at 100 kHz standard-mode and 400 kHz fast-mode rates. The 1.65V to 5.5V supply range allows placing the buffer on whichever rail is convenient, while 5.5V-tolerant outputs permit the pull-up rail to differ from VCC for level-translated buses. Place the device near the bus connector with short traces, and size the pull-up (typically 1k-10k ohm) for the bus capacitance and required rise time; multiple outputs may share one pull-up to combine bus segments or implement wired-AND arbitration without risk of output contention.
Recommended
3.3V to 5V Logic Level Translation
Mixed-voltage systems frequently need to drive 5V loads from 3.3V controllers, and the SN74LVC07APWR solves this up-translation cleanly: the open-drain output is pulled up to the 5.5V maximum rail even while the device runs at 3.3V. TI specifies 5.5V tolerance on both inputs and outputs independent of VCC, so a single supply keeps the buffer alive while outputs interface to legacy 5V TTL/CMOS logic. The 2.6 ns maximum tpd at 5V preserves signal timing margins, and the TSSOP-14 footprint provides six independent channels for address, control, or status lines. Design consideration: because the output only sinks, the high level is set by the pull-up rail - never exceed 5.5V - and the resulting rise time depends on pull-up resistance and load capacitance, so keep pull-ups in the 1k-4.7k ohm range for faster edges on heavily loaded nets.
Recommended
Wired-AND Interrupt and Status Line Combining
Open-drain outputs are ideal for combining multiple interrupt or fault-status signals onto a single shared line, and the SN74LVC07APWR provides six independent sinking outputs in one TSSOP-14 package. When any input goes low, its output sinks the shared line low through one common pull-up - a hardware wired-AND that requires no external gates and creates no output-to-output contention. Latch-up performance exceeding 250 mA per JESD 17 ensures robustness against transients on shared industrial lines, and the -40C to +125C range suits factory-floor environments. Wire multiple pull-up resistors across separate buffered outputs if per-channel fault indication is also needed. The 1.65V to 5.5V supply range lets the combining logic match either the low-voltage MCU domain or a legacy 5V PLC input, and the 2.6 ns maximum tpd keeps fault propagation effectively instantaneous.
Recommended
LED Driving and Indicator Sinking
The SN74LVC07APWR works well as a low-side LED driver array: each open-drain output sinks the LED cathode to ground while the anode connects through a current-limiting resistor to the supply rail. Six channels in a single 14-pin TSSOP consolidate status, alarm, and activity indication while occupying minimal board area. Because the output is open drain, the LED can be referenced to a rail different from the buffer's VCC - useful when indicator LEDs sit on a 5V rail while the controlling logic runs at 3.3V. Verify the continuous sink current per TI datasheet output specifications and set the series resistor accordingly (typical indicator currents of 2-10 mA are well within ratings). The CMOS input draws negligible DC current, so driving channels directly from microcontroller GPIO adds no loading, and the -40C to +125C rating covers industrial enclosures.
Recommended
Legacy 5V System Interfaces and Glue Logic
Many industrial and test systems still contain 5V TTL-era logic, and the SN74LVC07APWR bridges modern low-voltage controllers to that legacy hardware. TI specifies that inputs accept voltages up to 5.5V regardless of VCC, so the buffer accepts 5V logic-level inputs directly even when powered at 3.3V - no clamp diode concerns. Outputs, in turn, can pull up to 5.5V to satisfy 5V TTL/CMOS high-level thresholds. This bidirectional 5V compatibility, combined with the 2.6 ns maximum propagation delay and 250 mA JESD 17 latch-up immunity, makes the LVC07A a reliable workhorse for enable lines, gates, backplane control signals, and fixture interfacing in automated test equipment. The TSSOP-14 package with 0.65 mm pitch fits standard legacy footprints, and the same pinout as the SOIC (D) variant allows board spin reuse across package generations.
Recommended
Battery-Powered and Portable Electronics
Portable designs benefit from the SN74LVC07APWR's low static CMOS power consumption and its ability to operate down to 1.65V, matching a single lithium-cell regulated rail or two-series-NiMH stacks through discharge. The wide 1.65V to 5.5V supply range means one buffer part survives board-level supply variations and different product configurations, reducing BOM variance. Open-drain outputs are energy-efficient for polled signaling: no shoot-through current occurs on output transitions the way a push-pull driver can exhibit, and lines stay static without consuming power. The 5.5V input tolerance also allows safe connection to external accessories or chargers that may present 5V signaling while the battery rail sags. For maximum battery life, keep pull-up resistors at 10k ohm or higher where rise-time permits, since pull-up current flows whenever the output is pulled low.
Recommended
Recommended Products Summary
Engineering reference data for SN74LVC07APWR β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | SN74LVC07APWRG4 | SN74LVC07AQPWRQ1 | 74LVC07APW,16 | MC74LCX07DTR2 |
|---|---|---|---|---|---|
| Package | TSSOP-14 (PW) | TSSOP-14 (PW) - same | TSSOP-14 (PW) - same | TSSOP-14 - same | TSSOP-14 - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Nexperia | onsemi |
| Supply Voltage Range | 1.65 V to 5.5 V | 1.65 V to 5.5 V | 1.65 V to 5.5 V | 1.65 V to 5.5 V | 2.0 V to 5.5 V |
| Output Type | Open Drain, non-inverting | Open Drain - identical | Open Drain - identical | Open Drain | Open Drain |
| Input/Output Voltage Tolerance | 5.5 V | 5.5 V | 5.5 V | 5.5 V | 5.5 V |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C (AEC-Q100) | -40C to +125C | -40C to +85C |
| Automotive Qualification | No (commercial grade) | No | Yes (AEC-Q100 Q1) | No | No |
Key Differentiators
- Wide 1.65V low-end supply range (vs MC74LCX07DTR2)
- Full industrial temperature range on commercial part (vs MC74LCX07DTR2)
- 5.5V-tolerant inputs independent of VCC (vs SN74LVC06APWR (inverting family sibling))
Design Notes
Never leave an SN74LVC07APWR output without a pull-up resistor. Open-drain outputs cannot drive high; an unloaded output will float and produce undefined logic levels and increased noise susceptibility. Every open-drain output needs a pull-up to a rail up to 5.5V. Also remember the output high level equals the pull-up rail, not VCC - a 3.3V-supplied device pulled up to 5V presents 5V at its output pin, which is intentional for translation but must not exceed the 5.5V absolute maximum.
The output rise time is set by the RC time constant of the pull-up resistor and total bus capacitance, not by the buffer. For a 400 kHz fast-mode bus with 100 pF of capacitance, estimate rise time as 0.85 x R x C; a 10k pull-up gives roughly 850 ns, exceeding the 300 ns I2C fast-mode rise-time budget. Reduce the pull-up to 2k-3k ohm in that case, and verify the buffer's sink-current rating keeps VOL within the low-level margin at the resulting current. Estimated values shown; confirm against the TI datasheet output sink specifications for your rail and temperature.
Place 0.1uF ceramic decoupling capacitors within 3 mm of the VCC (pin 14) and GND (pin 7) pins, with one additional bulk capacitor per group of logic devices. Although CMOS inputs draw negligible DC current, transient sink current on the six open-drain outputs concentrates in the ground return - keep the GND pin connection to the ground plane solid and short. The TSSOP-14 thermal padless design dissipates negligible power for logic loads, so no thermal copper is required; focus layout effort on minimizing the loop area between VCC decoupling and the output pull-up rails.
Compliance Information
RoHS compliant and lead-free per DigiKey and TI product listings for SN74LVC07APWR (standard production TSSOP PW package). REACH, halogen-free, and conflict-minerals declarations not stated in provided data - consult TI's quality/environmental documentation for the SN74LVC07A family.
