74LVC1G27GW - Single 3-Input NOR Gate, 1.65-5.5V | Nexperia
料号： 74LVC1G27GW ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0.4 | $0.40 |
| 10 | $0.36 | $3.60 |
| 100 | $0.3 | $30.00 |
| 500 | $0.24 | $120.00 |
| 1,000 | $0.18 | $180.00 |
| 3,000 | $0.13 | $390.00 |
74LVC1G27GW 概述
A logic gate is a fundamental building block of digital electronics that performs a Boolean operation on one or more binary inputs to produce a single binary output. The 3-input NOR gate outputs logic HIGH only when ALL three inputs are LOW; if any input is HIGH, the output is LOW. As part of the NOR gate hierarchy, this device is a member of the broader logic IC family, which also includes AND, OR, NAND, XOR, and inverter gates. NOR gates are functionally complete and can be combined to construct any other logic function, making them especially valuable in glue logic and minimal-component designs.
Key features of the 74LVC1G27GW include 24 mA output drive capability at VCC = 3.0 V, CMOS low power consumption, and Schmitt-trigger action at all inputs for tolerance to slow rise/fall times. ESD protection meets HBM JESD22-A114F (>2000 V), MM JESD22-A115-A (>200 V), and CDM JESD22-C101-C (>1000 V). It complies with JEDEC standards JESD8-7, JESD8-5, and JESD8B/JESD36, and supports IOFF partial power-down operation to prevent backflow current when one side of the device is powered down.
Internally, the 74LVC1G27GW uses CMOS technology with sub-micron geometries to deliver rail-to-rail output swings at low quiescent current. The Schmitt-trigger input hysteresis improves noise immunity in noisy environments and makes the device tolerant of slowly changing input signals. With 50 ns typical propagation delay at 3.3 V and a tiny 6-pin footprint, the device is optimized for high-density PCB designs where board area and signal integrity are critical.
Typical applications include voltage level translation between 3.3 V and 5 V buses, glue logic in microcontroller interfaces, signal inversion and combination in industrial controls, and handheld or battery-powered portable equipment requiring low-power operation. The wide supply range enables direct connection to single-cell Li-ion batteries (3.0 V to 4.2 V) or to regulated 1.8 V rails in modern SoCs.
When designing with this device, ensure that VCC is properly decoupled with a 100 nF ceramic capacitor placed within 5 mm of the VCC pin. Unused inputs should be tied to VCC or GND through a defined logic level; never leave inputs floating because the Schmitt-trigger hysteresis can cause oscillation. For mixed-voltage applications, confirm that input high-level voltage (VIH) and low-level voltage (VIL) thresholds of the driving device are compatible with the 74LVC family at your chosen VCC.
This page synthesizes distributor pricing from DigiKey, Mouser, LCSC, and Octopart; same-brand and cross-brand drop-in alternatives in SOT-363/SC-88; and practical design notes not consolidated in any single manufacturer datasheet.
直接替换替代料： 74LVC1G27GW ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
74LVC1G27GW,125
✅ 直接替换📋 参考替代料（不在目录中）
74LVC1G27GW
✅ 直接替换✓ 有现货
$0.13 / 个
查看数据手册 →74LVC1G27GW-MS
✅ 直接替换📋 参考替代料（不在目录中）
74LVC1G27GV,125
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
74LVC1G27GW-Q100
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
74LVC1G27GW 最大额定值与电气特性
| Logic Type | NOR Gate |
| Number of Circuits | 1 |
| Number of Inputs | 3 |
| Supply Voltage (VCC) | 1.65 V to 5.5 V |
| Logic Family | 74LVC (Low-Voltage CMOS) |
| Output Drive Current | 24 mA (VCC = 3.0 V) |
| Input Type | Schmitt-trigger |
| 输出类型 | CMOS, push-pull (single-ended) |
| IOFF (Partial Power-Down) | Yes, supported |
| ESD Protection (HBM) | >2000 V (JESD22-A114F) |
| ESD Protection (MM) | >200 V (JESD22-A115-A) |
| ESD Protection (CDM) | >1000 V (JESD22-C101-C) |
| JEDEC Compliance | JESD8-7, JESD8-5, JESD8B/JESD36 |
| 工作温度 | -40C to +125C |
| 封装 | 6-TSSOP (SOT-363 / SC-88) |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
| Lead-Free | Yes |
74LVC1G27GW 引脚配置
| 引脚 1 | 1A — Input A of the 3-input NOR gate |
| 引脚 2 | 1Y — Output of the NOR gate |
| 引脚 3 | GND — Ground (0 V) |
| 引脚 4 | 1C — Input C of the 3-input NOR gate |
| 引脚 5 | 1B — Input B of the 3-input NOR gate |
| 引脚 6 | VCC — Supply voltage (1.65 V to 5.5 V) |
典型应用
74LVC1G27GW 适用于 6 应用s: 3.3 V to 5 V Voltage Level Translation, Handheld / Battery-Powered Portable Equipment, Industrial Control Glue Logic, Microcontroller I/O Expansion, Signal Conditioning and Combination, Test and Measurement Equipment.
3.3 V to 5 V Voltage Level Translation
The 74LVC1G27GW is widely used as a single-gate level translator between 3.3 V microcontrollers and 5 V peripherals in mixed-voltage systems. With VCC tied to the 5 V rail, its 5 V-tolerant inputs (per the Nexperia datasheet) accept 3.3 V CMOS levels directly, while the output swings rail-to-rail at 5 V. The 24 mA output drive at VCC = 3.0 V is more than adequate for driving one CMOS input or a short PCB trace. The Schmitt-trigger input hysteresis eliminates the risk of multiple transitions when driven by slowly rising 3.3 V edges, which is critical when the upstream device has weak drive strength. Designers should place a 100 nF decoupling capacitor within 5 mm of the VCC pin and tie any unused inputs (none on this single-gate part) to a defined logic level.
推荐
Handheld / Battery-Powered Portable Equipment
The 74LVC1G27GW is well suited to handheld and battery-powered designs because of its 1.65 V to 5.5 V supply range and CMOS low quiescent current. It can operate directly from a single-cell Li-ion battery (3.0 V to 4.2 V) or from a regulated 1.8 V SoC rail without external level shifters. The tiny 6-pin SOT-363 footprint (approximately 2.0 mm x 1.25 mm) minimizes PCB area in space-constrained wearables, fitness bands, and IoT sensor nodes. The Schmitt-trigger inputs tolerate slow edges from power-rail ramp-up scenarios common in battery systems, preventing false triggering during power-on. Low power consumption extends battery life compared to older 74HC or 74AHC families, and IOFF partial-power-down support prevents backfeed current when the device is unpowered.
推荐
Industrial Control Glue Logic
In industrial control cabinets, the 74LVC1G27GW serves as compact glue logic for combining sensor inputs, fault signals, or enable lines before they reach a PLC, MCU, or driver stage. Its wide operating temperature range of -40 C to +125 C and ESD protection exceeding 2000 V HBM (per JESD22-A114F) make it robust against the electrical noise typical of motor-drive and solenoid environments. The 24 mA output drive at 3.0 V can directly drive a low-side N-FET gate or an optocoupler LED without an additional buffer. Its compliance with JEDEC standards JESD8-7, JESD8-5, and JESD8B/JESD36 simplifies qualification in industrial designs. Designers can place one 74LVC1G27GW per multi-input decision node on the panel PCB, replacing larger multi-channel NOR gate packages.
推荐
Microcontroller I/O Expansion
The 74LVC1G27GW enables I/O expansion on resource-constrained microcontrollers by combining three discrete GPIO signals into a single interrupt or status line. For example, three over-temperature, over-current, and over-voltage flags from a power supply can be NOR-combined by one 74LVC1G27GW to assert a single FAULT input to the MCU, freeing two GPIO pins for other functions. The device's sub-50 ns propagation delay (typical at 3.3 V) preserves real-time response in protection circuits. Its low quiescent current and small SOT-363 package suit designs where board area and standby power are at a premium. The 5 V-tolerant inputs allow direct connection to 5 V sensors even when VCC is at 3.3 V.
推荐
Signal Conditioning and Combination
The 74LVC1G27GW can combine or invert logic signals in motor-control, LED driver, and audio switching applications where a single gate in a tiny footprint is preferred over a multi-channel logic IC. In a brushed-DC motor driver, three enable/limit-switch signals can be NOR-combined so that any active input disables the H-bridge through a single line. The CMOS push-pull output provides clean rail-to-rail transitions with minimal ringing on cables up to several centimeters. The wide supply range allows the same part to be used on the 3.3 V logic board and the 5 V analog board with no design changes. For audio path muting, a 3-input NOR gate can mix multiple mute-assert signals into one low-impedance mute line.
推荐
Test and Measurement Equipment
The 74LVC1G27GW is used in portable test instruments, oscilloscope probe interfaces, and bench multimeter signal paths to combine trigger, gate, and threshold signals before they reach an analog comparator or ADC input. Its 1.65 V to 5.5 V supply range allows direct interfacing with both legacy 5 V analog front-ends and modern 3.3 V ADC front-ends in the same product family. The Schmitt-trigger input hysteresis prevents false triggering in electrically noisy bench environments with switching power supplies and motorized equipment. The wide operating temperature range supports use in outdoor or automotive diagnostic tools. Each measurement channel can host one 74LVC1G27GW on a small daughterboard for per-channel logic customization.
推荐
推荐产品汇总
工程参考数据： 74LVC1G27GW ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | 74LVC1G27GW,125 | 74LVC1G27GW | 74LVC1G27GW-MS | 74LVC1G27GV,125 | 74LVC1G27GW-Q100 |
|---|---|---|---|---|---|---|
| Brand | Nexperia | Nexperia | NXP Semiconductors | MSKSEMI | Nexperia | Nexperia |
| Package | 6-TSSOP (SOT-363 / SC-88) | 6-TSSOP (SOT-363 / SC-88) - same | 6-TSSOP (SOT-363 / SC-88) - same | 6-TSSOP (SOT-363 / SC-88) - same | 6-TSSOP (SOT-363 / SC-88) - same | 6-TSSOP (SOT-363 / SC-88) - same |
| Logic Function | 3-input NOR gate | 3-input NOR gate | 3-input NOR gate | 3-input NOR gate | 3-input NOR gate | 3-input NOR gate |
| 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 | 1.65 V to 5.5 V | 1.65 V to 5.5 V |
| Schmitt-Trigger Inputs | Yes | Yes | Yes | Yes (74LVC spec) | Yes | Yes |
| AEC-Q100 Automotive Grade | No (industrial grade) | No | No | No | No | Yes |
关键差异点
- True 3-input NOR in tiny SOT-363 footprint （对比 SN74LVC1G27DBVR (TI))
- Schmitt-trigger inputs for slow-edge tolerance （对比 Standard 74HC1G27 (no Schmitt-trigger))
- AEC-Q100 automotive qualified variant available （对比 Industrial-grade 74LVC1G27GW)
设计说明
Place a 100 nF X7R ceramic decoupling capacitor within 5 mm of the VCC pin (pin 6) to suppress supply transients caused by the 24 mA output drive switching. For designs where multiple 74LVC1G27GW parts share a supply, place one bulk capacitor (1-10 uF) at the supply entry point of the IC cluster. The IOFF partial-power-down feature allows the part to be safely powered down without backfeeding current through the inputs, but a discharge path on the supply rail may still be needed if multiple 74LVC devices are wired in parallel.
The Schmitt-trigger input hysteresis provides robust noise immunity for slow or noisy input edges (e.g., long PCB traces from sensors). However, keep input trace lengths below 25 mm where possible to minimize capacitive coupling. If the inputs must drive long cables or backplanes, add a small series resistor (33-100 ohm) close to the driver to dampen transmission-line ringing. Avoid running input traces parallel to switching power or motor traces to prevent coupled noise that could exceed the Schmitt-trigger thresholds.
Do not confuse the 74LVC1G27GW (3-input NOR) with the 74LVC1G02GW (2-input NOR) - the pin counts and pinouts differ in some package variants. Always confirm the pinout against the actual datasheet diagram for the specific suffix (GW, GV, GM). When using the part as a level translator, VCC must be tied to the higher-voltage rail; tying VCC to the lower rail will not produce full-swing output on the high side. Estimated: at 3.3 V VCC with 50 pF load, propagation delay is typically under 5 ns; at 5 pF load it is closer to 2-3 ns.
合规信息
Standard 74LVC1G27GW is industrial grade, not AEC-Q100 qualified. For AEC-Q100, choose the 74LVC1G27GW-Q100 variant. RoHS and REACH compliance per Nexperia product page; lead-free and halogen-free confirmed.
