SN74AHC3G99-Q1 - Triple Configurable Logic Gate AEC-Q100 | TI
部品番号: SN74AHC3G99-Q1 ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 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 概要
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.
ドロップイン代替品: SN74AHC3G99-Q1 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: SN74AHC3G99-Q1 （同一形状・フットプリント） — 相違点: Logic Function, Supply Voltage Range, Input Type, Inputs per Gate, Number of Gates.
クイック比較ツール — 並列比較する代替部品を選択:
SN74AHC3G99
✅ ドロップイン📋 参考代替品（カタログ未掲載）
SN74AHCT3G99-Q1
✅ ドロップイン✓ 在庫あり
$0.38 / 個
データシートを見る →SN74AHCT3G99QPWRQ1
✅ ドロップイン📋 参考代替品（カタログ未掲載）
SN74LV3T99-Q1
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$0.41 / 個
データシートを見る →SN74AHC3G99-Q1 最大定格＆電気的特性
| 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) |
| 出力タイプ | 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) |
| パッケージ | 20-TSSOP (PW) |
| 実装タイプ | Surface Mount |
| Automotive Qualification | AEC-Q100 qualified |
| 動作温度 | -40C to +125C |
| RoHS ステータス | Compliant |
| ライフサイクル状態 | Active |
SN74AHC3G99-Q1 20-tssop (pw) ピン配置ガイド
SN74AHC3G99-Q1 (20-tssop (pw) パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: SN74AHC3G99-Q1.
詳細は データシート をご参照ください。
主な用途
SN74AHC3G99-Q1 の用途: 6 件s: 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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: SN74AHC3G99-Q1 — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | 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) |
主な差別化要因
- 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)
設計ノート
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.
コンプライアンス情報
AEC-Q100 qualified per TI -Q1 designation. RoHS compliance per TI product page; REACH and halogen-free status not stated in provided data.
