SN74AHC3G99-Q1 - Triple Configurable Logic Gate AEC-Q100 | TI
부품 번호: SN74AHC3G99-Q1 ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $0.62 | $0.62 |
| 10 | $0.56 | $5.60 |
| 100 | $0.44 | $44.00 |
| 500 | $0.36 | $180.00 |
| 1,000 | $0.29 | $290.00 |
SN74AHC3G99-Q1 개요
Configurable logic gates are digital ICs that let a single device implement multiple Boolean functions - MUX, AND, OR, NAND, NOR, XOR, XNOR - depending on input connections. They belong to the standard logic gate family within digital ICs, the fundamental building blocks of digital electronics. Integrating three such gates in one package saves board space and simplifies inventory versus discrete gates.
Key features include Schmitt-trigger inputs on every pin, which eliminate erroneous outputs caused by slow-edged or noisy input signals - critical in electrically harsh automotive systems. The 3-state outputs place pins in a high-impedance state, enabling bus sharing. Per the TI datasheet, the device drives load capacitance up to 50pF while meeting all datasheet specifications, with a typical propagation delay of 7.5ns at 5V for high-speed operation.
Technically, the device is built on TI AHC (Advanced High-Speed CMOS) technology, balancing speed with low static power consumption. Input hysteresis improves noise immunity and permits slow input transitions without false triggering, while output-enable control supports bus-oriented architectures.
Typical applications include automotive body control modules, infotainment systems, and industrial automation where multiple logic functions are required in a compact footprint. It also suits signal conditioning in mixed-voltage systems.
Design tip: keep total output load capacitance at or below 50pF to preserve full datasheet timing, and place a 0.1uF decoupling capacitor close to VCC to suppress supply noise.
드롭인 대체품: SN74AHC3G99-Q1 — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: SN74AHC3G99-Q1 (동일 폼 팩터 및 풋프린트) — 차이점: Logic Function, Supply Voltage Range, Input Type, Inputs per Gate, Number of Gates.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
SN74AHC3G99
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
SN74AHCT3G99-Q1
✅ 드롭인✓ 재고 있음
$0.38 / 개
데이터시트 보기 →SN74AHCT3G99QPWRQ1
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
SN74LV3T99-Q1
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$0.41 / 개
데이터시트 보기 →SN74AHC3G99-Q1 최대 정격 & 전기적 특성
| Logic Function | Y = (A • C + B • C) ⊕ D, configurable (MUX, AND, OR, NAND, NOR, XOR, XNOR) |
| Number of Gates | 3 |
| Inputs per Gate | 4 (12 total) |
| 출력 유형 | 3-state |
| Supply Voltage Range | 2 V to 5.5 V |
| Input Type | Schmitt-trigger |
| Maximum Load Capacitance | 50 pF (per datasheet recommendations) |
| Propagation Delay | 7.5 ns typ at 5 V |
| Technology Family | AHC (Advanced High-Speed CMOS) |
| 패키지 | 20-TSSOP (PW) |
| 실장 유형 | Surface Mount |
| Automotive Qualification | AEC-Q100 qualified |
| 동작 온도 | -40C to +125C |
| RoHS 상태 | Compliant |
| 수명 주기 상태 | Active |
SN74AHC3G99-Q1 20-tssop (pw) 핀 구성 가이드
SN74AHC3G99-Q1(20-tssop (pw) 패키지)의 핀 구성입니다. 이 디지털 IC에는 GPIO, 통신 인터페이스(UART, SPI, I2C), 전원 핀이 포함되어 있습니다. 대체 핀 기능과 구성 옵션은 제조사 데이터시트를 참조하십시오. 임베디드 시스템 설계와 PCB 레이아웃에 필수적입니다.
다음에 대한 상세 핀아웃 데이터 없음: SN74AHC3G99-Q1.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
SN74AHC3G99-Q1 적합 용도: 6 애플리케이션s: Automotive Body Control Modules, Automotive Infotainment Systems, Industrial Automation and PLC I/O, Motor Drive Control Logic, Mixed-Voltage Signal Conditioning, Networking and Communication Backplanes.
Automotive Body Control Modules
Body control modules combine many switch inputs, lamp drivers, and communication lines in an electrically noisy 12V vehicle environment. The SN74AHC3G99-Q1 fits because its Schmitt-trigger inputs reject slow edges from relay-adjacent wiring and its 3-state outputs enable shared status buses. Operating from a 2V-5.5V regulated rail with AEC-Q100 qualification across -40C to +125C, one 20-pin package implements MUX, XOR, or AND functions for interlock and diagnostics logic, reducing BOM count versus three discrete gates while guaranteeing automotive-grade reliability.
추천
Automotive Infotainment Systems
Infotainment head units mix audio, display, and communication domains where glue logic routes enables, interrupts, and mode-select signals. The SN74AHC3G99-Q1 suits these boards because each configurable gate can be tailored in layout as a MUX or XOR without changing the IC, and the 3-state outputs let multiple sources drive shared control lines. Its 7.5ns typical propagation delay at 5V keeps timing margins safe for processor GPIO handshaking, while AEC-Q100 qualification covers the elevated cabin temperatures and 3.3V/5V mixed rails typical of these designs.
추천
Industrial Automation and PLC I/O
PLC I/O cards need robust glue logic between field-side isolators and the controller. The SN74AHC3G99-Q1 provides three reconfigurable gates whose Schmitt-trigger inputs tolerate slow, noisy edges from optocoupler outputs, and 3-state outputs support shared backplane buses. The 2V-5.5V supply range bridges 3.3V controller logic and 5V field logic on one part, cutting inventory. Configuring functions such as NAND or XNOR by routing changes lets one approved PCB serve multiple I/O variants, shortening development cycles in modular industrial automation systems.
추천
Motor Drive Control Logic
In motor drives, gate-enable interlocks and fault-combination logic must be fast and deterministic. The SN74AHC3G99-Q1 implements the AND/OR/XOR combinations needed for PWM enable gating and fault latching with 7.5ns typical propagation delay at 5V, ensuring faults are masked within one PWM cycle. Schmitt-trigger inputs condition noisy fault-feedback signals, and 3-state outputs allow a controller to take over shared enable lines during diagnostics. Operation to +125C matches the elevated ambient near power stages in automotive and industrial motor controllers.
추천
Mixed-Voltage Signal Conditioning
Systems combining 3.3V MCUs with legacy 5V peripherals need level-tolerant glue logic. The SN74AHC3G99-Q1 operates from 2V to 5.5V, so the same part can sit on either rail, and its Schmitt-trigger inputs cleanly reshape slow analog-derived comparator edges before they reach the digital domain. Configurable gates form select/mode decoding between ADCs, DACs, and the processor, while 3-state outputs share status lines. Keeping loads under the specified 50pF preserves the 7.5ns typical delay, making the device a compact hub for mixed-voltage board-level conditioning.
추천
Networking and Communication Backplanes
Line cards and backplanes use shared control and status buses where multiple cards must tri-state their drivers. The SN74AHC3G99-Q1 addresses this with 3-state outputs on all three gates, and its configurable Boolean function Y = (A • C + B • C) ⊕ D implements address decoding or parity-style checks without extra ICs. The 2V-5.5V range supports both 3.3V and 5V backplane generations, and Schmitt-trigger inputs tolerate the slow edges from long, heavily loaded backplane traces, improving noise margins in dense networking equipment.
추천
추천 제품 요약
엔지니어링 참조 데이터: SN74AHC3G99-Q1 — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | SN74AHC3G99 | SN74AHCT3G99-Q1 | SN74LV3T99-Q1 |
|---|---|---|---|---|
| Package | 20-TSSOP (PW) / 20-VSSOP (DGS) | 20-TSSOP (PW) - same footprint | 20-TSSOP (PW) - same footprint | 20-TSSOP (PW) - same footprint |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Supply Voltage Range | 2 V to 5.5 V | 2 V to 5.5 V | 4.5 V to 5.5 V (TTL) | 1.65 V to 5.5 V |
| Input Type | Schmitt-trigger (CMOS levels) | Schmitt-trigger (CMOS levels) | Schmitt-trigger (TTL levels) | Schmitt-trigger (partial) |
| AEC-Q100 Automotive Grade | Yes | No (standard grade) | Yes | Yes |
| Outputs | 3 x 3-state | 3 x 3-state | 3 x 3-state | 3 x 3-state |
| Configurable Function | Y = (A • C + B • C) ⊕ D | Same function | Same function | Same function (LV thresholds) |
주요 차별점
- AEC-Q100 automotive qualification (vs SN74AHC3G99)
- Wide 2V-5.5V CMOS input range (vs SN74AHCT3G99-Q1)
- Three gates plus 3-state outputs in one package (vs SN74LVC1G17QDBVRQ1)
설계 노트
Keep total load capacitance on each 3-state output at or below 50pF. TI states the device meets all datasheet specifications at 50pF or less; larger capacitive loads increase propagation delay and dynamic power beyond guaranteed limits. Long backplane traces or heavily fan-out connections should be buffered before exceeding this limit.
Place a 0.1uF ceramic decoupling capacitor within 2mm of the VCC pin, plus a bulk 1uF-10uF capacitor per power domain. Unused gate inputs must never float - tie them to VCC or GND, since floating Schmitt-trigger inputs at slow edges can cause oscillatory supply current draw and elevated quiescent consumption.
Exploit the Schmitt-trigger inputs: they remove the need for external RC edge-shaping on noisy, slow-rising signals from comparators, optocouplers, or long wiring harnesses. Verify hysteresis voltage at your operating VCC using the datasheet Schmitt-trigger graphs, since hysteresis width scales with supply voltage.
규정 준수 정보
AEC-Q100 qualified per TI -Q1 designation. RoHS compliance per TI product page; REACH and halogen-free status not stated in provided data.
