SN74AUP1G14DRLR - 0.8V-3.6V Schmitt Inverter, SOT-553 | TI
料号： SN74AUP1G14DRLR ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0.42 | $0.42 |
| 10 | $0.36 | $3.60 |
| 100 | $0.22 | $22.00 |
| 500 | $0.16 | $80.00 |
| 1,000 | $0.12 | $120.00 |
| 4,000 | $0.09 | $360.00 |
SN74AUP1G14DRLR 概述
A Schmitt-trigger inverter is a logic gate that combines inversion with a hysteretic input threshold, preventing oscillation on slow or noisy input transitions. The AUP (Advanced Ultra-low Power) sub-family belongs to TI's CMOS logic portfolio, optimized for battery-powered and energy-harvesting applications. Within the logic hierarchy, inverters fall under gates -> combinational logic -> standard logic ICs. Schmitt-trigger variants are specifically designed for signal conditioning, oscillator circuits, and debouncing, where slow-rising signals (such as RC-filtered edges or mechanical switch closures) would otherwise cause multiple transitions on a standard CMOS input.
Key features of the SN74AUP1G14 include partial-power-down capability through Ioff circuitry (preventing backflow current when the device is unpowered), NanoStar and NanoFree tiny package options, low overshoot/undershoot (<10% of VCC), and balanced 4 mA output drive at 3.3 V. The device is specified across the industrial -40C to +85C operating range and supports standard logic-level translation in mixed-voltage systems.
The internal architecture uses TI's advanced CMOS process with hysteresis built into the input stage. The Schmitt-trigger threshold is approximately 0.65*VCC (rising) and 0.35*VCC (falling), giving roughly 30% VCC hysteresis. The Ioff feature protects downstream circuitry by blocking current paths through the I/O pins when VCC = 0 V, which is essential for systems where the SN74AUP1G14DRLR is powered down while the upstream bus remains live.
Typical applications include button debouncing in handheld devices, RC relaxation oscillators, level translation between 1.8 V and 3.3 V domains, and signal conditioning for sensors. The 5-pin SOT-553 footprint is among the smallest single-gate packages available, making the device ideal for space-constrained wearables and IoT sensor nodes.
When designing with this device, ensure input signal rise/fall times are slower than the typical CMOS transition rate to benefit fully from the Schmitt-trigger hysteresis. Place a 0.1 uF decoupling capacitor as close as possible to the VCC pin to suppress noise-induced threshold violations.
This page consolidates distributor pricing, AEO-optimized FAQs, SOT-553 drop-in alternatives, and practical PCB layout notes not all gathered on a single manufacturer datasheet page.
直接替换替代料： SN74AUP1G14DRLR ——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：
SN74AUP1G14DRYR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
SN74AUP1G14QDRLRQ1
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
SN74AUP1G14DRLRG4
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
74AUP1G14GW,125
✅ 直接替换📋 参考替代料（不在目录中）
74AUP1G14GV,125
✅ 直接替换📋 参考替代料（不在目录中）
NL17SZ14DFT2G
✅ 直接替换📋 参考替代料（不在目录中）
SN74AUP1G14DRLR 最大额定值与电气特性
| 功能 | Single Schmitt-Trigger Inverter |
| Number of Channels | 1 |
| Logic Family | AUP (Advanced Ultra-low Power CMOS) |
| Supply Voltage (VCC) | 0.8 V to 3.6 V |
| Quiescent Current (ICC max) | 0.9 uA |
| Power Dissipation Capacitance (Cpd typ) | 4.4 pF at 3.3 V |
| Input Capacitance (Cin typ) | 1.5 pF |
| Output Drive (IOH/IOL at 3.3 V) | -4 mA / +4 mA |
| Schmitt-Trigger Hysteresis | Approx. 0.65*VCC (VT+) / 0.35*VCC (VT-) |
| Partial-Power-Down (Ioff) | Supported |
| 工作温度 | -40C to +85C |
| 封装 | SOT-553 (DRL) 5-pin |
| 安装类型 | Surface Mount |
| MSL 等级 | 1 |
| RoHS 状态 | Compliant |
| Lead-Free | Yes |
SN74AUP1G14DRLR 引脚配置
| 引脚 1 | NC — No internal connection; may be left floating or tied to GND per TI datasheet |
| 引脚 2 | A — Schmitt-trigger input |
| 引脚 3 | GND — Ground reference |
| 引脚 4 | Y — Inverted output |
| 引脚 5 | VCC — Supply voltage (0.8 V to 3.6 V) |
典型应用
SN74AUP1G14DRLR 适用于 6 应用s: Push-Button Debouncing, RC Relaxation Oscillator, Mixed-Voltage Level Translation, Industrial Sensor Signal Conditioning, IoT Edge Node Wake-Up Circuit, Wearable Heart-Rate Monitor Front-End.
Push-Button Debouncing
The SN74AUP1G14DRLR's Schmitt-trigger hysteresis makes it the canonical choice for debouncing mechanical switch inputs in handheld and wearable devices. The 0.9 uA max quiescent current adds negligible load to coin-cell budgets, and the wide 0.8 V to 3.6 V VCC range allows direct connection to 1.5 V coin cells, 1.8 V sensor rails, or 3.3 V microcontroller GPIO. Per TI's datasheet typical application, a single 100 kohm pull-up plus 10 nF capacitor to the input pin yields a clean, jitter-free logic-level output that the MCU can poll directly.
推荐
RC Relaxation Oscillator
A single SN74AUP1G14DRLR with an external resistor and capacitor forms a classic relaxation oscillator that generates a square wave from a few Hz up to several MHz. The Schmitt-trigger hysteresis (~30% VCC) ensures crisp, rail-to-rail output transitions even when the RC time constant is in the millisecond range. At 3.3 V VCC with R = 100 kohm and C = 1 nF, the oscillator runs near 5 kHz with minimal harmonic content, suitable for blinking LEDs, simple tone generation, or watchdog timing.
推荐
Mixed-Voltage Level Translation
The SN74AUP1G14DRLR supports unidirectional logic-level translation between 1.8 V and 3.3 V domains in mixed-voltage sensor hubs. The Ioff partial-power-down feature blocks backflow current when the 3.3 V rail is live but the 1.8 V rail is off - critical for sleep-mode sequencing. With 4 mA output drive at 3.3 V, the device can directly fan out to multiple CMOS loads without an additional buffer, simplifying the BOM.
推荐
Industrial Sensor Signal Conditioning
In factory-automation front-ends, the SN74AUP1G14DRLR conditions slow analog sensor edges into clean digital logic for an industrial MCU. The wide -40C to +85C operating range and 0.9 uA ICC let the device live on the analog sensor board with minimal thermal or power budget impact. Schmitt-trigger hysteresis rejects the motor-induced EMI common in factory floors, ensuring the digital input does not flicker on noisy edges.
推荐
IoT Edge Node Wake-Up Circuit
Battery-powered IoT edge nodes use the SN74AUP1G14DRLR as a wake-up signal conditioner that draws less than 1 uA continuously. The Schmitt-trigger input handles the slow edges of a PIR sensor or low-power accelerometer interrupt output, while the CMOS inverter output drives a wake-up GPIO on the host MCU. Combined with the Ioff partial-power-down feature, the wake-up path adds effectively zero quiescent draw during deep-sleep states.
推荐
Wearable Heart-Rate Monitor Front-End
In a wearable optical heart-rate monitor, the SN74AUP1G14DRLR conditions the photodiode-amplifier trigger edge before it reaches the low-power MCU. The 1.5 pF typical input capacitance keeps the analog front-end bandwidth intact, and the 0.9 uA ICC extends battery life on coin cells. The SOT-553 footprint consumes less than 3 mm^2 of board area, leaving more room for the optical sensor and battery in a slim wristband form factor.
推荐
推荐产品汇总
工程参考数据： SN74AUP1G14DRLR ——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 | SN74AUP1G14DRYR | SN74AUP1G14QDRLRQ1 | SN74AUP1G14DRLRG4 | NL17SZ14DFT2G |
|---|---|---|---|---|---|
| Package | SOT-553 (DRL) | SOT-553 (DRY) - same footprint family | SOT-553 (DRL) - same | SOT-553 (DRL) - same | SC-88A (SOT-553) - same footprint |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | onsemi |
| Function | Schmitt-trigger inverter | Schmitt-trigger inverter | Schmitt-trigger inverter (auto grade) | Schmitt-trigger inverter | Schmitt-trigger inverter |
| Supply Voltage (VCC) | 0.8 V to 3.6 V | 0.8 V to 3.6 V | 0.8 V to 3.6 V | 0.8 V to 3.6 V | 1.65 V to 5.5 V (higher min) |
| Quiescent Current (ICC max) | 0.9 uA | 0.9 uA | 0.9 uA | 0.9 uA | 1.0 uA (slightly higher) |
| Output Drive (at 3.3 V) | +/-4 mA | +/-4 mA | +/-4 mA | +/-4 mA | +/-2 mA (weaker) |
| AEC-Q100 Automotive Qualified | No | No | Yes | No | No |
关键差异点
- Widest supply voltage range in its AUP class （对比 NL17SZ14DFT2G (onsemi))
- Lowest quiescent current in SOT-553 footprint （对比 NL17SZ14DFT2G (onsemi))
- Ioff partial-power-down protection on every AUP gate （对比 Standard CMOS 74HC1G14 logic)
设计说明
Place a 0.1 uF X7R ceramic decoupling capacitor as close as possible to the VCC pin (pin 5) of the SOT-553 package, with the ground return via directly under the GND pin (pin 3). Estimated: the SN74AUP1G14DRLR draws 0.9 uA ICC plus dynamic current from Cpd*VCC^2*f. At 3.3 V and 1 MHz toggling, dynamic current is approximately 48 uA, still well within decoupling capability of a 0.1 uF cap. For multi-gate boards, use a bulk 1 uF cap shared across all gates.
The SOT-553 (DRL) package has a 0.5 mm lead pitch and a 1.6 mm x 1.6 mm body. To avoid solder bridging, use a land pattern per TI's SCBA017 application note, with NSMD pads and a 0.3 mm aperture stencil. The NC pin (pin 1) may be tied to GND or left floating; if left floating, route the pad under the package to minimize risk of solder wicking. For high-vibration environments, add under-package epoxy staking.
Do not assume the SN74AUP1G14DRLR is 5 V tolerant - VCC must be within 0.8 V to 3.6 V, and inputs exceeding VCC by more than 0.5 V can engage the ESD clamp and source current. Use the SN74LVC1G14 instead if 5 V inputs must be accepted. Also note that the NC pin is not internally bonded to the substrate; leaving it floating is safe, but using it as a test point or signal route will create a noisy stub.
Schmitt-trigger hysteresis is approximately 0.65*VCC (VT+) and 0.35*VCC (VT-), giving ~30% VCC hysteresis. Use this margin to set the input RC time constant: the input must rise or fall between the two thresholds quickly enough to avoid double transitions. As a rule of thumb, limit the RC time constant to less than 100 ns divided by the supply voltage in volts to ensure clean switching at all temperatures.
合规信息
RoHS and lead-free per TI product page. Not AEC-Q100 qualified - choose SN74AUP1G14QDRLRQ1 for automotive. Halogen-free per TI's Green/RoHS compliance statement.
