NC7S02M5X - TinyLogic 2-Input NOR Gate SOT-23-5 | onsemi
部品番号: NC7S02M5X ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $0.29 | $0.29 |
| 10 | $0.23 | $2.30 |
| 100 | $0.16 | $16.00 |
| 500 | $0.12 | $60.00 |
| 1,000 | $0.09 | $90.00 |
| 3,000 | $0.07 | $210.00 |
NC7S02M5X 概要
A logic gate is the most fundamental building block of digital electronics: it takes binary inputs and produces a binary output according to Boolean rules. A NOR gate outputs a LOW only when any input is HIGH, and is functionally complete, meaning any digital circuit can be built from NOR gates alone. Single-gate logic devices like the NC7S02 occupy the lowest level of the logic IC hierarchy, below multi-gate families such as 74HC quad gates, and belong to the broader class of small-scale integration (SSI) CMOS logic.
Key features of the NC7S02 include TinyLogic HS single-gate packaging that saves board space versus quad-gate SOIC-14 alternatives, silicon-gate CMOS technology for speed with minimal static power consumption, and ESD protection diodes on both inputs and output with respect to VCC and GND rails. Three stages of gain between inputs and outputs assure high noise immunity and reduced propagation-delay sensitivity.
Technically, the three-stage output buffering provides symmetrical drive and sharp transitions, while the broad VCC range allows direct interfacing with 5V, 3.3V, and lower-voltage logic domains within the specified operating limits. The inherent rail-clamping ESD structure simplifies board-level protection in mixed-signal environments.
Typical applications include glue logic in microcontroller and FPGA systems, power-down domain isolation in battery-powered portable equipment, signal inversion or OR-ing in space-constrained designs, and retry or reset control in embedded industrial boards such as MC9S08 or MC9S12 based systems.
When designing with this part, keep unused input tied to a valid logic level (VCC or GND) to prevent oscillation, and place 0.1uF decoupling close to the VCC pin. Confirm propagation delay and drive current against the onsemi datasheet for your VCC and temperature corner.
This page synthesizes distributor pricing tiers, drop-in alternatives, pinout, and practical design notes not found in the manufacturer datasheet.
ドロップイン代替品: NC7S02M5X — 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: NC7S02M5X （同一形状・フットプリント） — 相違点: Logic Function, Package.
クイック比較ツール — 並列比較する代替部品を選択:
NC7S02M5
✅ ドロップイン📋 参考代替品（カタログ未掲載）
NC7SZ02M5X
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MC74VHC1G02DFT1
✅ ドロップイン📋 参考代替品（カタログ未掲載）
SN74LVC1G02DBVR
✅ ドロップイン📋 参考代替品（カタログ未掲載）
SN74AHC1G02DBVR
✅ ドロップイン📋 参考代替品（カタログ未掲載）
74LVC1G02GW
✅ ドロップイン📋 参考代替品（カタログ未掲載）
74HC1G02GW
✅ ドロップイン📋 参考代替品（カタログ未掲載）
NC7S02M5X 最大定格＆電気的特性
| Logic Function | NOR Gate |
| Logic Family | TinyLogic HS (high-speed CMOS) |
| Number of Gates | 1 |
| Inputs per Gate | 2 |
| Technology | Advanced Silicon Gate CMOS |
| ESD Protection | Diodes on inputs and output to VCC and GND rails |
| Gain Stages | 3 stages between input and output |
| パッケージ | SOT-23-5 (5-pin), surface mount |
| 実装タイプ | Surface Mount |
| Packaging | Tape and Reel (suffix M5X) |
NC7S02M5X ピン構成
| ピン 1 | 1A — NOR gate input A |
| ピン 2 | 1B — NOR gate input B |
| ピン 3 | GND — Ground (0 V reference) |
| ピン 4 | 1Y — NOR gate output Y |
| ピン 5 | VCC — Positive supply voltage |
主な用途
NC7S02M5X の用途: 6 件s: Microcontroller Glue Logic, FPGA and CPLD Companion Logic, Battery-Powered Portable Devices, Industrial Control and PLC I/O, Reset and Power-Supply Supervision, Consumer Electronics Signal Conditioning.
Microcontroller Glue Logic
In 8-bit and 32-bit embedded systems built around MCUs such as onsemi's peers in the market, single NOR gates handle address decoding, chip-select OR-ing, and active-LOW signal combining. The NC7S02M5X fits these tasks because its three-stage gain structure provides high noise immunity in electrically noisy digital boards, and its TinyLogic HS CMOS process delivers fast edges without the static current drain of bipolar glue logic. A typical use combines a reset line and a power-good signal: Y = NOT(RESET OR PWRGD_LOW), gating the CPU enable only when both conditions are satisfied. Placed close to the MCU with a 0.1uF decoupling capacitor, the SOT-23-5 footprint adds negligible board area and its ESD-protected I/O withstands handling and connector-transient stress in industrial control environments.
おすすめ
FPGA and CPLD Companion Logic
FPGA I/O banks often need a few external gates for clock gating, reset combining, or level-conditioned handshakes that do not justify consuming valuable internal fabric resources. The NC7S02M5X suits this role with a broad VCC range allowing it to sit on 3.3V or 5V aux rails, and the silicon-gate CMOS process adds minimal static load to shared buses. In a typical configuration, a NOR gate combines an FPGA-done signal with an external watchdog line to produce a system-ready output: Y = NOT(DONE OR WDT_LOW). Because the part occupies only 5 pins in SOT-23-5, it can be placed directly adjacent to the FPGA bank being serviced, shortening stub lengths and preserving signal integrity for timing-sensitive handshake lines, while tape-and-reel packaging supports automated assembly in volume production.
おすすめ
Battery-Powered Portable Devices
Handheld meters, wearables, and portable instruments require logic that draws essentially zero current while idle. The NC7S02M5X addresses this with CMOS technology giving near-zero quiescent current, which is decisive for multi-year battery life targets. Its small SOT-23-5 footprint fits dense portable PCBs where every square millimeter counts, and the broad VCC range tolerates battery rail sag as cells discharge. A common portable application is power-rail OR-ing between battery and USB inputs with active-LOW control: the NOR gate ensures the system enable stays valid through source transitions. ESD protection diodes on inputs and output protect against connector ESD events during handling. Designers should verify the datasheet ICC and dynamic current at the product's switching frequency, since CMOS dynamic power dominates in clocked sections.
おすすめ
Industrial Control and PLC I/O
Industrial controllers combine safety interlocks, fault flags, and enable signals that are frequently active-LOW, making NOR gates a natural fit: any asserted fault pulls the output LOW to disable actuators. The NC7S02M5X's three gain stages give high noise immunity, essential near contactors, relays, and motor drives switching kilowatt loads. Its tape-and-reel M5X packaging supports automated SMT assembly for panelized PLC I/O boards in volume. The broad VCC range bridges legacy 5V I/O cards and modern 3.3V controller logic within datasheet limits. Designers should route the NOR inputs away from motor-drive switching nodes and add local 0.1uF decoupling, and confirm drive-current and propagation-delay limits at the plant's extended temperature range before releasing the design to production.
おすすめ
Reset and Power-Supply Supervision
Reliable microprocessor systems require reset lines asserted whenever any supply rail is out of range. A NOR gate naturally implements active-LOW power-fail combining: Y = NOT(RST1_LOW OR RST2_LOW) holds the processor in reset until all supervisors release. The NC7S02M5X fits this duty with ESD protection diodes to both rails guarding supervisor outputs during multi-rail power-up and brownout sequences, and CMOS inputs that do not load comparator outputs. Because single-gate TinyLogic parts come in SOT-23-5, the supervisor-to-reset chain fits beside the power tree in minimal space. Place the gate between the supervisor outputs and MCU reset input with short traces, and verify input threshold levels at your rail voltage so supervisor outputs crossing thresholds during startup never leave the input region undefined.
おすすめ
Consumer Electronics Signal Conditioning
Set-top boxes, appliances, and small consumer devices use scattered single gates for button debouncing helpers, LED drive inversion, mode selection, and IR receiver output shaping. The NC7S02M5X serves these roles economically: TinyLogic HS CMOS gives crisp output transitions for reliable reception by downstream MCU inputs, and the 5-pin SOT-23-5 lets designers drop one gate exactly where the logic function is needed instead of consuming a quad-gate IC and leftover floating inputs. ESD protection at inputs and output withstands the handling and cable-discharge exposure typical of consumer products with external connectors. On appliance boards near relays and triacs, the three-stage output maintains noise immunity, though layouts should still keep gate inputs away from AC switching nodes and use a local decoupling capacitor at pin 5.
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: NC7S02M5X — 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 | NC7S02M5 | NC7SZ02M5X | SN74LVC1G02DBVR | 74LVC1G02GW |
|---|---|---|---|---|---|
| Package | SOT-23-5 | SOT-23-5 - same | SOT-23-5 - same | SOT-23-5 - same | SOT-23-5 - same |
| Brand | onsemi | onsemi | onsemi | Texas Instruments | NXP Semiconductors |
| Logic Function | 2-input NOR | 2-input NOR | 2-input NOR | 2-input NOR | 2-input NOR |
| Logic Family / Speed Grade | TinyLogic HS CMOS | TinyLogic HS CMOS | TinyLogic UHS CMOS (faster) | LVC CMOS | LVC CMOS |
| Packaging | Tape & Reel (M5X) | Tube | Tape & Reel | Tape & Reel | Tape & Reel |
主な差別化要因
- Lower static power with high noise immunity in HS family （vs NC7SZ02M5X)
- Three gain stages for noise immunity （vs 74HC1G02GW)
- Supply flexibility over broad VCC range （vs 74LVC1G02GW)
設計ノート
Place a 0.1uF ceramic decoupling capacitor within 2-3 mm of pin 5 (VCC) to pin 3 (GND) to supply the dynamic charge that CMOS outputs draw on each switching edge. The SOT-23-5 footprint is small enough to position the gate directly adjacent to the IC or connector it serves, which minimizes stub length on timing-sensitive signals. Keep unused board area under the part as solid ground pour, and connect the GND paddle-side traces directly to the ground plane with multiple vias for lowest inductance.
CMOS inputs must never float: tie any unused input (if the second gate input is driven from an open-collector source or connector) to VCC or GND through a 10k resistor so the input never sits in the undefined transition region, where both FETs conduct and current draw spikes. The three-stage gain structure gives high noise immunity per the onsemi datasheet, but slow edge rates from RC-filtered signals can still cause output oscillation; if driving from an RC debouncer, ensure input transition time meets the datasheet maximum rise/fall-time requirement at your VCC.
Do not assume cross-family drop-in equivalence beyond pinout: TinyLogic HS (NC7S02), TinyLogic UHS (NC7SZ02), LVC (SN74LVC1G02, 74LVC1G02), and HC families have different propagation delays, drive currents, and valid VCC ranges. Re-verify AC timing margins and input thresholds at your operating VCC and temperature corner before substituting. Also note the M5X suffix denotes tape and reel while the bare NC7S02M5 is tube - electrical parts are identical, but pick packaging to match your assembly process.
コンプライアンス情報
Compliance status not stated in the retrieved web data; confirm against the onsemi product page or datasheet for the NC7S02 family.
