74V2T04STR - Triple Inverter CMOS, SOT-23-8 | STMicroelectronics
부품 번호: 74V2T04STR ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $0.42 | $0.42 |
| 10 | $0.36 | $3.60 |
| 100 | $0.26 | $26.00 |
| 500 | $0.21 | $105.00 |
| 1,000 | $0.17 | $170.00 |
| 3,000 | $0.14 | $420.00 |
74V2T04STR 개요
A CMOS inverter is the most fundamental building block of digital logic. It accepts a single binary input and produces the complementary binary output: a logic HIGH on the input produces a logic LOW on the output, and vice versa. The 74V2T04 integrates three such inverters into one package, replacing three discrete transistor pairs or three single-inverter packages, thereby reducing board area, BOM count, and propagation skew between channels. As a CMOS device, it sits within the broader hierarchy of logic gates -> combinational logic ICs -> standard logic family -> semiconductor.
Key differentiating features include TTL-compatible input thresholds of VIH = 2 V (min) and VIL = 0.8 V (max), which allow direct interfacing with 5 V TTL logic without level translation; power-down protection on inputs that prevents back-feeding current when the device is unpowered; symmetrical output impedance for matched rise and fall times; and balanced propagation delay for predictable timing margins in synchronous paths. The C2MOS silicon-gate process provides inherent low static power dissipation, with quiescent ICC remaining low across the full VCC operating range.
The architecture is a classic CMOS inverter pair (p-channel pull-up, n-channel pull-down) replicated three times. Each inverter output stage is sized for the 8 mA balanced drive specification, which is sufficient for driving moderate capacitive bus loads and short PCB traces. The 4.7 ns typical propagation delay at 5 V enables use in clock squaring, reset distribution, and signal buffering applications up to several tens of megahertz. Because all three channels share the same VCC and GND pins, decoupling must be placed close to those pins to suppress switching noise.
Typical applications include logic-level inversion and clock buffering in portable and battery-powered devices, signal conditioning between 5 V TTL and 3.3 V CMOS domains, oscillator and crystal-clock signal inversion, watchdog reset pulse generation, and general-purpose glue logic in microcontroller-based embedded systems. The compact SOT-23-8 footprint makes it particularly well suited to hand-held, wearable, and space-constrained consumer designs.
When designing with the 74V2T04STR, place a 100 nF ceramic decoupling capacitor as close as possible to the VCC pin, route input and output traces to minimize coupling, and ensure that the load capacitance does not exceed the device's drive capability to maintain the specified propagation delay. Unused inputs must be tied to VCC or GND; floating inputs on a CMOS device can drift to the linear region and cause quiescent current to rise.
This page synthesizes distributor pricing, drop-in alternative listings across ST and competing logic families, and practical PCB-level design notes not found in the manufacturer datasheet.
드롭인 대체품: 74V2T04STR — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: 74V2T04STR (동일 폼 팩터 및 풋프린트) — 차이점: Operating Temperature, Package.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
74V2T04
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
74V1G04CTR
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
74LVC1GU04GW125
✅ 드롭인✓ 재고 있음
$0.11 / 개
데이터시트 보기 →74LVC3G04GW
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
SN74LVC3G04DCUR
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
74V2T04STR 최대 정격 & 전기적 특성
| 기능 | Triple Inverter (3-element NOT gate) |
| Logic Family | 74V (High-Speed CMOS, C2MOS) |
| Number of Channels | 3 |
| Supply Voltage VCC | 2 V to 5.5 V |
| Input Voltage VIH (min) | 2 V at VCC = 4.5 V |
| Input Voltage VIL (max) | 0.8 V at VCC = 4.5 V |
| Propagation Delay tPD (typ) | 4.7 ns at VCC = 5 V |
| Output Drive |IOH| = IOL (min) | 8 mA at VCC = 4.5 V |
| 동작 온도 | -55C to +125C |
| 패키지 | SOT-23-8 |
| 실장 유형 | Surface Mount |
| Input Protection | Power-down protection on inputs |
| TTL Compatibility | Yes (TTL-compatible inputs) |
| Output Impedance | Symmetrical (matched rise/fall) |
| RoHS 상태 | Compliant |
74V2T04STR 핀 구성
| 핀 1 | 1Y — Output of inverter 1 |
| 핀 2 | 1A — Input of inverter 1 |
| 핀 3 | 2Y — Output of inverter 2 |
| 핀 4 | 2A — Input of inverter 2 |
| 핀 5 | GND — Ground reference |
| 핀 6 | 3A — Input of inverter 3 |
| 핀 7 | 3Y — Output of inverter 3 |
| 핀 8 | VCC — Supply voltage (2 V to 5.5 V) |
일반적인 애플리케이션
74V2T04STR 적합 용도: 6 애플리케이션s: Microcontroller Clock Buffering, Handheld Portable Consumer Electronics, Reset Pulse Generation and Conditioning, Crystal Oscillator Signal Squaring, Glue Logic in Embedded Systems, Signal Conditioning Between Logic Domains.
Microcontroller Clock Buffering
The 74V2T04STR's 4.7 ns typical propagation delay at 5 V and TTL-compatible inputs allow it to invert or square clock signals driving microcontroller peripherals. A 16 MHz or 25 MHz crystal oscillator output can be routed through one of the three inverters to generate a complementary clock edge with minimal skew. Place a 100 nF decoupling capacitor adjacent to VCC (pin 8) to suppress supply-noise-induced jitter on the clock transition.
추천
Handheld Portable Consumer Electronics
The SOT-23-8 footprint of the 74V2T04STR delivers three inverters in a footprint smaller than a SOIC-8, ideal for handheld, wearable, and battery-powered consumer designs where board area is at a premium. Its low quiescent ICC characteristic of C2MOS technology preserves battery life during standby. TTL-compatible inputs allow direct interfacing with 3.3 V or 5 V microcontrollers and peripheral ICs without level-shifters.
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Reset Pulse Generation and Conditioning
Use the 74V2T04STR to generate or invert a reset pulse in a microcontroller system. Its 8 mA balanced output drive at 4.5 V can pull a reset line LOW actively while another channel inverts the supervisor output. Symmetrical output impedance ensures matched rise and fall times, which is critical for reset-pulse minimum-pulse-width specifications in watchdog timer circuits. The triple-channel package leaves channels available for other glue-logic tasks.
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Crystal Oscillator Signal Squaring
A crystal oscillator's sine-wave output can be routed through one or two 74V2T04STR inverter stages to produce a rail-to-rail CMOS clock with sub-5 ns rise time. The TTL-compatible input stage (VIH = 2 V min) reliably triggers on the oscillator's typical 1 V pk-pk output when biased with a resistor network. The balanced 8 mA output can drive a downstream PLL or microcontroller clock pin across short PCB traces.
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Glue Logic in Embedded Systems
Beyond clock and reset inversion, the 74V2T04STR provides general-purpose glue logic: signal inversion between subsystems, active-LOW to active-HIGH conversion, bus-driver enable logic, and oscillator-buffering. With three independent channels per package, designers can implement compact signal-conditioning networks without resorting to discrete transistors. The -55C to +125C operating range supports industrial and automotive-grade designs.
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Signal Conditioning Between Logic Domains
When interfacing a 5 V TTL peripheral to a 3.3 V CMOS microcontroller, the 74V2T04STR can serve as a level-conditioning buffer in either role. Its TTL-compatible inputs accept 5 V TTL levels when powered at 5 V, while its CMOS outputs swing rail-to-rail. For 3.3 V-to-5 V translation in the reverse direction, the cross-brand 74LVC3G04 (pin-compatible drop-in) provides 5 V tolerant inputs at 3.3 V supply, allowing reuse of the same PCB footprint.
추천
추천 제품 요약
엔지니어링 참조 데이터: 74V2T04STR — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | 74V2T04 | 74V1G04CTR | 74LVC1GU04GW125 | 74LVC3G04GW | SN74LVC3G04DCUR |
|---|---|---|---|---|---|---|
| Package | SOT-23-8 | SOT-23-8 - same | SOT-23-5 - different (5-pin) | SOT-23-6 - different (6-pin) | SOT-23-8 (GW) - same | SOT-23-8 (DCU) - same |
| Brand | STMicroelectronics | STMicroelectronics - same | STMicroelectronics - same | Nexperia - cross | Nexperia - cross | Texas Instruments - cross |
| Function | Triple inverter (3-channel) | Triple inverter - same | Single inverter - different | Single inverter - different | Triple inverter - same | Triple inverter - same |
| VCC Range | 2 V to 5.5 V | 2 V to 5.5 V - same | 2 V to 5.5 V - same | 1.65 V to 5.5 V - wider low end | 1.65 V to 5.5 V - wider low end | 1.65 V to 5.5 V - wider low end |
| Propagation Delay tPD (typ at 5 V) | 4.7 ns | 4.7 ns - same | 4.7 ns - same | 2.4 ns - faster (unbuffered) | 3.4 ns - faster | 3.4 ns - faster |
| Output Drive |IOH|=|IOL| | 8 mA at 4.5 V | 8 mA - same | 8 mA - same | 32 mA - stronger | 24 mA - stronger | 24 mA - stronger |
| TTL-Compatible Inputs | Yes (VIH=2V, VIL=0.8V at 4.5V) | Yes - same | Yes - same | CMOS-input only - different | CMOS-input only - different | CMOS-input only - different |
| Logic Family | 74V (C2MOS high-speed) | 74V - same | 74V - same | 74LVC (low-voltage CMOS) - different | 74LVC - different | 74LVC - different |
주요 차별점
- Three independent inverters in smallest CMOS logic footprint (SOT-23-8) (vs 74VHC04 (SOIC-14, 6-inverter))
- TTL-compatible inputs for direct 5 V logic interfacing (vs 74LVC3G04 (CMOS-input only))
- Power-down input protection prevents back-feed damage (vs Discrete MOSFET inverter pair)
설계 노트
Place a 100 nF ceramic decoupling capacitor as close as possible to the VCC pin (pin 8) of the 74V2T04STR, with a short, low-inductance trace to GND (pin 5). For designs with multiple logic ICs sharing a supply rail, add a bulk 1 uF to 10 uF tantalum or ceramic capacitor near the 74V2T04STR VCC pin. CMOS logic devices draw current only during output transitions, so a well-decoupled supply minimizes voltage dips that could couple into adjacent analog or clock circuits.
Unused inputs on the 74V2T04STR must be tied to VCC or GND - never left floating. Floating CMOS inputs can drift to the linear operating region, dramatically increasing quiescent current (ICC) and potentially causing the output to oscillate. For example, if only two of the three inverters are used, tie 1A (pin 2) to GND or VCC. Each floating input can draw microamps of leakage and destabilize the supply rail in low-power designs.
Route input and output traces with minimum length to reduce capacitive loading and minimize propagation-delay variation. The 4.7 ns tPD specification is measured at 50 pF load; long PCB traces or fan-out to multiple loads can degrade rise/fall times. For high-speed paths above 50 MHz, consider a transmission-line approach with controlled-impedance traces. Separate the 74V2T04STR ground pin return path from high-current switching returns to avoid ground-bounce-induced logic errors.
규정 준수 정보
RoHS compliant per ST product page; lead-free reflow profile compatible. Not AEC-Q100 qualified - the 74V2T04STR is a commercial/industrial grade logic IC. For automotive applications requiring AEC-Q100, evaluate the 74V1G04CTR-Q1 or equivalent automotive-qualified variants.
