74AHC1G08SE-7 - Single 2-Input AND Gate, 2V-5.5V, SOT-353 | Diodes Inc
부품 번호: 74AHC1G08SE-7 ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $0.34 | $0.34 |
| 10 | $0.3 | $3.00 |
| 100 | $0.18 | $18.00 |
| 500 | $0.13 | $65.00 |
| 1,000 | $0.09 | $90.00 |
74AHC1G08SE-7 개요
A logic gate is a fundamental building block of digital electronics that performs a Boolean function on one or more binary inputs to produce a single binary output. The AND gate is one of the three primitive Boolean operators (along with OR and NOT) from which all other digital logic functions can be constructed. CMOS (Complementary Metal-Oxide-Semiconductor) logic gates use paired p-channel and n-channel MOSFETs to achieve very low static power consumption while delivering high noise immunity. Within the logic hierarchy, the AHC family sits between standard HC (High-speed CMOS) and the faster AHCT (AHC with TTL-compatible inputs) families, balancing speed, drive strength, and power consumption for general-purpose digital design.
Key features of the 74AHC1G08SE-7 include CMOS-compatible input switching thresholds, balanced output drive with ±8 mA source/sink capability at 4.5V VCC, low quiescent current, and ESD protection per industry-standard methods. The SOT-353 (also called SC-88A or SC-70-5 in some product lines) is a compact 5-lead surface-mount package that occupies approximately 2.0 mm × 2.0 mm of PCB area, making this part ideal for space-constrained portable and handheld designs. The SE-7 suffix indicates tape-and-reel packaging for high-volume assembly.
Typical applications include general-purpose digital logic glue, signal gating and clock-enable functions, microcontroller I/O expansion, level translation interfaces between logic domains, and pull-up/pull-down replacement networks. The wide 2V–5.5V supply tolerance allows direct interfacing with 3.3V microcontrollers, 5V legacy logic, and battery-powered systems.
When designing with this part, observe standard CMOS handling precautions: unused inputs must be tied to VCC or GND (never left floating) to prevent shoot-through current and to keep quiescent supply current at its rated low level. The SOT-353 thermal resistance and small pad geometry make it well-suited for reflow-soldered hand assemblies and high-density boards.
This page synthesizes distributor stock levels, drop-in alternatives from multiple manufacturers, and practical board-level design notes not consolidated in the manufacturer datasheet.
드롭인 대체품: 74AHC1G08SE-7 — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: 74AHC1G08SE-7 (동일 폼 팩터 및 풋프린트) — 차이점: MSL Level, Output Current (IOH/IOL), Output Type, Package, Package Size.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
74AHC1G08GW
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
SN74AHC1G08DBVR
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
MC74VHC1G08DFT2G
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
74AHC1G08SE-7
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$0.09 / 개
데이터시트 보기 →74AHCT1G08SE-7
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
74AHC1G08GW-Q100
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
74AHC1G08SE-7 최대 정격 & 전기적 특성
| Logic Type | AND Gate |
| Number of Circuits | 1 |
| Number of Inputs per Circuit | 2 |
| Logic Family | AHC (Advanced High-speed CMOS) |
| Supply Voltage (VCC) | 2.0 V to 5.5 V |
| Propagation Delay (tpd) | 16 ns (typical at 5 V) |
| Output Current (IOH/IOL) | +/-8 mA |
| Input Logic Levels | CMOS |
| 출력 유형 | Push-Pull (standard) |
| Quiescent Current (ICC) | 10 uA (max) |
| 동작 온도 | -40 C to +125 C |
| 패키지 | SOT-353 (SC-88A), 5 pins |
| Package Size | 2.0 mm x 2.0 mm |
| 실장 유형 | Surface Mount |
| MSL 레벨 | 1 |
| RoHS 상태 | Compliant |
| 기능 | Y = A AND B |
74AHC1G08SE-7 핀 구성
| 핀 1 | 1A — Data input A (AND gate input 1) |
| 핀 2 | GND — Ground reference (0 V) |
| 핀 3 | 1B — Data input B (AND gate input 2) |
| 핀 4 | 1Y — Data output Y (push-pull) |
| 핀 5 | VCC — Positive supply voltage (2.0 V to 5.5 V) |
일반적인 애플리케이션
74AHC1G08SE-7 적합 용도: 6 애플리케이션s: General-Purpose Digital Logic Glue, Clock Enable and Gating, Signal Conditioning in Portable/Wearable Devices, Microcontroller I/O Expansion, Battery-Power System Power Sequencing, Industrial Control Logic.
General-Purpose Digital Logic Glue
The 74AHC1G08SE-7 provides a single AND function in minimal board space for digital glue logic between MCUs, sensors, and peripherals. Its 2 V–5.5 V supply tolerance and CMOS input thresholds allow direct connection to 3.3 V GPIO without level shifting. The SOT-353 package fits hand-routed prototype boards and high-density consumer products equally well, and the 8 mA output drive easily togggles downstream HC/AHC logic or LED indicators with proper current-limiting resistors. Compared with discrete transistor implementations, the IC reduces BOM count, assembly time, and quiescent current by orders of magnitude.
추천
Clock Enable and Gating
A common use for the 74AHC1G08SE-7 is to gate a clock or enable signal by combining an active-high enable with a clock source on the AND-gate inputs. The 16 ns typical propagation delay at 5 V limits this to clock frequencies below approximately 30 MHz, which covers most MCU peripheral buses and low-speed serial interfaces. The push-pull CMOS output cleanly drives transmission lines up to several inches of trace on FR-4 PCB without external buffering, simplifying board design. The 5 V tolerant inputs accept 3.3 V signals in mixed-voltage designs.
추천
Signal Conditioning in Portable/Wearable Devices
Wearable and IoT designs benefit from the 74AHC1G08SE-7's small SOT-353 footprint (2.0 mm × 2.0 mm), low quiescent current (10 uA max), and 2 V minimum supply operation compatible with Li-ion battery voltages. Designers use this AND gate to combine wake-up signals, button-press interrupts, or sensor-ready flags before passing them to an MCU interrupt pin. The wide operating temperature range of -40 C to +125 C supports both consumer-wearable and industrial-IoT deployments. The IC's low input leakage (< 1 uA) preserves battery life during sleep states.
추천
Microcontroller I/O Expansion
When an MCU runs out of GPIO pins, the 74AHC1G08SE-7 can combine two logic signals into one MCU-readable input, effectively freeing one GPIO for other uses. For example, an MCU can read 'system ready' = (power good) AND (sensor calibration done) from a single GPIO, using only one AND gate per combination. The 8 mA drive capability ensures reliable logic-level margins even on long PCB traces, and the CMOS input thresholds track VCC, making the design portable across 1.8 V, 3.3 V, and 5 V systems with no modification.
추천
Battery-Power System Power Sequencing
In battery-powered systems, the 74AHC1G08SE-7 can combine a power-good signal from a DC-DC converter with a battery-present flag to enable downstream subsystems safely. The 2.0 V minimum VCC allows the part to operate directly from a single Li-ion cell (3.0 V–4.2 V) without a boost converter. The low quiescent current of 10 uA maximum adds negligible load to the battery budget. The CMOS input thresholds automatically track the falling battery voltage, providing robust gating down to the UVLO threshold of downstream regulators.
추천
Industrial Control Logic
Industrial PLC and motor-control boards use the 74AHC1G08SE-7 to combine safety-interlock signals, fault flags, and enable commands into a single permissive line for power-stage drivers. The -40 C to +125 C operating range, 8 mA drive, and CMOS-noise immunity satisfy the harsh electrical environment of industrial cabinets with motors and relays. The SOT-353 package allows dense placement near connector pin-outs, minimizing trace-induced noise on the safety-critical inputs. The AHC CMOS thresholds reject the 1-2 V common-mode noise typical of long cable runs.
추천
추천 제품 요약
엔지니어링 참조 데이터: 74AHC1G08SE-7 — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | 74AHC1G08GW | SN74AHC1G08DBVR | MC74VHC1G08DFT2G | 74AHCT1G08SE-7 | 74AHC1G08GW-Q100 |
|---|---|---|---|---|---|---|
| Brand | Diodes Incorporated | Nexperia | Texas Instruments | onsemi | Diodes Incorporated | Nexperia |
| Package | SOT-353-5 | SOT-353-5 - same | SOT-23-5 - same footprint | SC-88A - same footprint | SOT-353-5 - same | SOT-353-5 - same |
| Logic Function | AND (Y = A AND B) | AND - same | AND - same | AND - same | AND - same | AND - same |
| Supply Voltage (VCC) | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 4.5 V to 5.5 V | 2.0 V to 5.5 V |
| Propagation Delay (tpd) | 16 ns (typ at 5 V) | 16 ns (typ at 5 V) | 9 ns (typ at 5 V) | 20 ns (typ at 5 V) | 14 ns (typ at 5 V) | 16 ns (typ at 5 V) |
| Output Drive (IOH/IOL) | +/-8 mA | +/-8 mA | +/-8 mA | +/-8 mA | +/-8 mA | +/-8 mA |
| Input Logic Thresholds | CMOS | CMOS | CMOS | CMOS | TTL | CMOS |
| Automotive Grade (AEC-Q100) | No | No | No | No | No | Yes (AEC-Q100) |
| Operating Temperature | -40 C to +125 C | -40 C to +125 C | -40 C to +85 C | -55 C to +125 C | -40 C to +125 C | -40 C to +125 C |
주요 차별점
- Compact SOT-353 footprint (vs SN74AHC1G08DBVR (SOT-23-5))
- AHC CMOS input thresholds for 3.3 V clean switching (vs 74AHCT1G08SE-7 (TTL inputs))
- Wide 2 V to 5.5 V supply supports battery-direct designs (vs 74AHCT1G08SE-7 (4.5 V to 5.5 V only))
설계 노트
Always tie unused AND-gate inputs to VCC or GND - never leave them floating. A floating CMOS input can drift to mid-rail, causing shoot-through current in the output buffer and increasing quiescent current by orders of magnitude. For AND gates used in production, tie unused pins to VCC to force the output LOW deterministically.
The SOT-353 package has a small thermal pad footprint; ensure the PCB land pattern follows JEDEC SC-88A guidelines. Place a decoupling capacitor (0.1 uF ceramic, X7R) within 2 mm of the VCC pin. Ground returns for both inputs should be routed back to the device GND pin to minimize crosstalk on the output edge.
For clock-gating applications, the 16 ns propagation delay limits usable clock frequencies to approximately 30 MHz (rule of thumb: tpd < 5% of clock period). Above 30 MHz, the timing skew between clock and data paths may violate downstream setup/hold requirements. For faster clocks, switch to SN74AHC1G08DBVR (9 ns tpd) or move to AHCT/LVC logic families.
Estimated: With both inputs driven from 3.3 V CMOS sources and no DC load on the output, the 74AHC1G08SE-7 draws approximately 1-2 uA quiescent current at room temperature. Driving a 10 pF output load at 1 MHz adds approximately 10 uA (CVf) to the supply current. For battery-powered designs, gate the AND gate's VCC with a load switch to eliminate its quiescent draw during sleep states.
규정 준수 정보
RoHS and lead-free per Diodes Incorporated product page. Not AEC-Q100 qualified - choose 74AHC1G08GW-Q100 for automotive applications.
