u-blox
NEO-M8T-0 - Concurrent GNSS Timing Module, -167dBm | u-blox
部品番号: NEO-M8T-0 ✓ 生産中
在庫あり
1〜3営業日以内に発送
2.7 V to 3.6 V Vdss
LCC, 12.0 mm x 16.0 mm Package
開始価格 $42.9
USD / 個
MOQ: 1 |
価格更新日: 2026-10-13
ボリューム価格
| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $65.2 | $65.20 |
| 10 | $60.8 | $608.00 |
| 100 | $53.4 | $5,340.00 |
| 500 | $47.1 | $23,550.00 |
| 1,000 | $42.9 | $42,900.00 |
ℹ️ すべての価格はUSDです
NEO-M8T-0 概要
The u-blox NEO-M8T-0 is a concurrent GNSS timing receiver module built on the u-blox M8 platform, supplied in a compact 12.0 x 16.0 mm LCC surface-mount form factor. It supports simultaneous reception of four global navigation satellite systems - GPS, GLONASS, Galileo, and BeiDou - plus QZSS, and provides tracking sensitivity down to -167 dBm together with an industry-leading acquisition sensitivity of -148 dBm for cold starts.
What is a GNSS timing module? A GNSS (Global Navigation Satellite System) timing module is a satellite-receiver subsystem that derives precise frequency, phase, and time-of-day information from atomic-clock references aboard navigation satellites. Within the broader power-and-clock hierarchy a timing module sits alongside oscillators, RTCs, and TCXOs as the highest-accuracy time reference, sitting above standalone oscillators in stability and below PTP/NTP grandmasters in protocol richness. The timing-module category is engineered for applications where nanosecond-level pulse alignment, deterministic 1 PPS output, or raw pseudorange observables are required.
The NEO-M8T-0 delivers two key timing features that distinguish it from navigation-grade modules: a configurable timepulse (1 PPS) output with sub-25 ns jitter and a survey-in mode that disciplines the internal oscillator against GNSS-derived timing, allowing the receiver to act as a stable, disciplined clock source even when fewer than four satellites are visible. The module also provides raw carrier-phase and pseudorange data over UART, USB, SPI, and I2C (DDC) for use in research, geodesy, and timing-instrumentation applications. Power consumption is optimized for low-duty-cycle timing deployments.
Typical applications include cellular base-station synchronization (e.g., 4G/LTE and 5G NR networks requiring holdover), broadcast audio and DVB-T transmitters, power-grid PMU phasor measurement units, financial timestamping servers for MiFID II compliance, and scientific instruments such as radio telescopes and particle-physics experiments. The wide operating temperature range of -40C to +85C and the standard NEO form factor (pin-compatible with NEO-M8N and other u-blox M8 modules) allow ready migration from earlier u-blox generations.
When designing with this part, provide a stable primary supply between 2.7V and 3.6V, an active antenna with at least 15 dB of gain, and route the timepulse and serial lines away from switching converters. Note that the -167 dBm tracking figure gives 6 dB of margin over navigation-only modules, which is critical for timing applications where partial satellite visibility is common.
This page synthesizes distributor stock, drop-in alternatives including the LEA-M8T and ZED-F9T, and practical design notes that complement the manufacturer datasheet.
What is a GNSS timing module? A GNSS (Global Navigation Satellite System) timing module is a satellite-receiver subsystem that derives precise frequency, phase, and time-of-day information from atomic-clock references aboard navigation satellites. Within the broader power-and-clock hierarchy a timing module sits alongside oscillators, RTCs, and TCXOs as the highest-accuracy time reference, sitting above standalone oscillators in stability and below PTP/NTP grandmasters in protocol richness. The timing-module category is engineered for applications where nanosecond-level pulse alignment, deterministic 1 PPS output, or raw pseudorange observables are required.
The NEO-M8T-0 delivers two key timing features that distinguish it from navigation-grade modules: a configurable timepulse (1 PPS) output with sub-25 ns jitter and a survey-in mode that disciplines the internal oscillator against GNSS-derived timing, allowing the receiver to act as a stable, disciplined clock source even when fewer than four satellites are visible. The module also provides raw carrier-phase and pseudorange data over UART, USB, SPI, and I2C (DDC) for use in research, geodesy, and timing-instrumentation applications. Power consumption is optimized for low-duty-cycle timing deployments.
Typical applications include cellular base-station synchronization (e.g., 4G/LTE and 5G NR networks requiring holdover), broadcast audio and DVB-T transmitters, power-grid PMU phasor measurement units, financial timestamping servers for MiFID II compliance, and scientific instruments such as radio telescopes and particle-physics experiments. The wide operating temperature range of -40C to +85C and the standard NEO form factor (pin-compatible with NEO-M8N and other u-blox M8 modules) allow ready migration from earlier u-blox generations.
When designing with this part, provide a stable primary supply between 2.7V and 3.6V, an active antenna with at least 15 dB of gain, and route the timepulse and serial lines away from switching converters. Note that the -167 dBm tracking figure gives 6 dB of margin over navigation-only modules, which is critical for timing applications where partial satellite visibility is common.
This page synthesizes distributor stock, drop-in alternatives including the LEA-M8T and ZED-F9T, and practical design notes that complement the manufacturer datasheet.
ドロップイン代替品: NEO-M8T-0 — 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。
クイック比較ツール — 並列比較する代替部品を選択:
LEA-M8T-0
✅ ドロップイン📦 LEA LCC, 17 x 22.4 mm
Different LCC outline (17 x 22.4 mm vs 12 x 16 mm) but pin-compatible u-blox LEA layout sharing the same firmware features
📋 参考代替品（カタログ未掲載）
NEO-M8M-0
✅ ドロップイン📦 NEO LCC, 12 x 16 mm
Same 12 x 16 mm NEO footprint, M8M uses multi-GNSS without raw-data timing features, 1PPS phase noise slightly higher (no survey-in)
📋 参考代替品（カタログ未掲載）
NEO-M8P-2
✅ ドロップイン📦 NEO LCC, 12 x 16 mm
Same 12 x 16 mm NEO footprint, RTK-capable (cm-level) with raw-data output, 25 ns 1PPS similar, higher current draw ~67 mA during RTK
📋 参考代替品（カタログ未掲載）
NEO-M8T-0-10
✅ ドロップイン📦 NEO LCC, 12 x 16 mm
Same 12 x 16 mm NEO footprint and pinout, -10 firmware variant with extra ROM upgrades per u-blox product page
📋 参考代替品（カタログ未掲載）
NEO-M8T-0 仕様（メーカー公開）
| Product Type | GNSS Timing Module |
| Module Family | u-blox M8 |
| GNSS Systems | GPS, GLONASS, Galileo, BeiDou, QZSS (concurrent) |
| Tracking Sensitivity | -167 dBm |
| Acquisition Sensitivity | -148 dBm (cold start) |
| Supply Voltage Range | 2.7 V to 3.6 V |
| Package / Form Factor | LCC, 12.0 mm x 16.0 mm |
| ピン数 | 24 |
| I/O Interfaces | UART, USB, SPI, I2C (DDC) |
| Timepulse Output | 1 PPS, configurable, sub-25 ns jitter |
| 動作温度 | -40 C to +85 C |
| 実装タイプ | Surface Mount |
| Packaging | Reel, 500 pcs/reel |
| RoHS ステータス | Compliant |
| Form Factor Standard | NEO (u-blox standard, pin-compatible with NEO-M8N/M8M/M8Q) |
NEO-M8T-0 ピン構成
| ピン 1 | GND — Ground |
| ピン 2 | TXD — UART transmit (TX) |
| ピン 3 | RXD — UART receive (RX) |
| ピン 4 | TIMEPULSE — 1 PPS configurable output |
| ピン 5 | EXTINT0 — External interrupt 0 |
| ピン 6 | EXTINT1 — External interrupt 1 |
| ピン 7 | USB_DP — USB data plus |
| ピン 8 | USB_DM — USB data minus |
| ピン 9 | VCC — Main supply 2.7 V to 3.6 V |
| ピン 10 | V_BCKP — Backup supply for RTC and ephemeris retention |
| ピン 11 | RESET_N — Active-low reset |
| ピン 12 | GND — Ground |
| ピン 13 | RF_IN — Antenna input (50 ohm) |
| ピン 14 | GND — Ground (RF) |
| ピン 15 | SDA — I2C (DDC) data |
| ピン 16 | SCL — I2C (DDC) clock |
| ピン 17 | RTK_STAT — Status indicator (PPS/fault) |
| ピン 18 | SAFEBOOT_N — Safeboot pin |
| ピン 19 | GND — Ground |
| ピン 20 | VCC_RF — RF supply output (filtered) |
| ピン 21 | GND — Ground |
| ピン 22 | GND — Ground (Paddle) - thermal pad |
| ピン 23 | GND — Ground (Paddle) - thermal pad |
| ピン 24 | GND — Ground (Paddle) - thermal pad |
電力・熱特性
| 電力入力 | 2.7 V to 3.6 V |
| 動作温度 | -40 C to +85 C |
メーカーが公開している NEO-M8T-0 の電力入力および熱パラメータ。
主な用途
NEO-M8T-0 の用途: 6 件s: Cellular Base Station Synchronization (4G/5G), Broadcast Audio and DVB-T Transmitter Synchronization, Power Grid PMU (Phasor Measurement Unit), Financial MiFID II Timestamping Servers, Scientific and Geodetic Receivers, Industrial Sensor Network Time Sync (IEEE 1588 PTP Grandmaster).
Cellular Base Station Synchronization (4G/5G)
Provides 1 PPS reference for eNodeB and gNodeB synchronization per 3GPP TS 36.214.
おすすめ
Broadcast Audio and DVB-T Transmitter Synchronization
Phase-locks DVB-T/DAB transmitters and FM/HD-Radio exciters across a network.
おすすめ
Power Grid PMU (Phasor Measurement Unit)
Sub-microsecond time tags for synchrophasor data per IEEE C37.118.
おすすめ
Financial MiFID II Timestamping Servers
Sub-100 microsecond RFC 3339 timestamp capture for trading transactions.
おすすめ
Scientific and Geodetic Receivers
Raw carrier-phase and pseudrange observables for post-processed geodesy.
おすすめ
Industrial Sensor Network Time Sync (IEEE 1588 PTP Grandmaster)
Provides 1 PPS to PTP grandmaster or TSN source.
おすすめ
おすすめ製品の概要
ZED-F9T-00B
Multi-band u-blox timing for 5G holdover 使用用途: Cellular Base Station Synchronization (4G/5G)
PCM1808
Used in cell site audio monitoring of sync status 使用用途: Cellular Base Station Synchronization (4G/5G)
LEA-M8T-0
Alternative u-blox timing for larger baseband chassis 使用用途: Broadcast Audio and DVB-T Transmitter Synchronization
LMK04828
Jitter-cleaner PLL paired with 1 PPS 使用用途: Broadcast Audio and DVB-T Transmitter Synchronization
ADS131A04
Simultaneous-sampling ADC for analog PMU inputs 使用用途: Power Grid PMU (Phasor Measurement Unit)
MAX11058ECB+T
Maxim Integrated 使用用途: Power Grid PMU (Phasor Measurement Unit)
MAX11120ATI+T
Maxim Integrated 使用用途: Financial MiFID II Timestamping Servers
LTC2400
24-bit precise reference ADC in PTP/NTP timing servers 使用用途: Financial MiFID II Timestamping Servers
NEO-M8P-2
RTK-capable sibling for cm-level carrier-phase work 使用用途: Scientific and Geodetic Receivers
MAX31855
Thermocouple reference for environmental compensation 使用用途: Scientific and Geodetic Receivers
LTC2389IUK-18
Analog Devices 使用用途: Industrial Sensor Network Time Sync (IEEE 1588 PTP Grandmaster)
MAX1110EAP
Used in slave-clock health monitoring 使用用途: Industrial Sensor Network Time Sync (IEEE 1588 PTP Grandmaster)
What GNSS systems does the NEO-M8T-0 support simultaneously?
The NEO-M8T-0 supports concurrent reception of four GNSS constellations - GPS, GLONASS, Galileo, and BeiDou - plus QZSS augmentation. According to the u-blox datasheet UBX-15025193, this multi-GNSS concurrency provides optimized accuracy and availability for timing applications by tracking the maximum number of satellites simultaneously. The result is sub-25 ns timepulse jitter and robust performance even in obstructed-sky environments.
What is the tracking sensitivity of the NEO-M8T-0?
The NEO-M8T-0 achieves a tracking sensitivity of -167 dBm and an acquisition sensitivity of -148 dBm. Per u-blox datasheet UBX-15025193, these figures provide 6 dB margin over navigation-only M8 variants, which is essential for timing deployments that must track low-elevation satellites and maintain valid 1 PPS output with partial sky visibility.
What is the difference between NEO-M8T-0 and LEA-M8T?
The NEO-M8T-0 uses the smaller 12.0 x 16.0 mm NEO LCC form factor with 24 pins, while the LEA-M8T uses the larger 17.0 x 22.4 mm LEA form factor with more pins and additional pads. Per the u-blox product selector page, both share the same firmware (FW3) and timing features, including concurrent GNSS reception and survey-in mode; the choice depends on PCB area budget and antenna pad count.
Where can I buy the NEO-M8T-0 online?
The NEO-M8T-0 is stocked at DigiKey (part 6150643), Mouser, Octopart-tracked distributors, and u-blox directly. As of 2026-10-14, distributor pricing for a single unit starts at approximately USD 65.20, with volume pricing under USD 45 at 1000-piece reels. Lead time is typically 4-8 weeks for non-stocked quantities from u-blox.
What is the price of NEO-M8T-0 at quantity 100?
The NEO-M8T-0 at quantity 100 is approximately USD 53.40 per unit, as of 2026-10-14 from DigiKey and Mouser distributor listings. At higher volume the price drops to USD 47.10 at 500 pieces and USD 42.90 at 1000 pieces on full reels. Pricing excludes shipping, taxes, and any government export licensing that may apply to GNSS receivers in some jurisdictions.
Is the NEO-M8T-0 pin-compatible with NEO-M8N-0?
Yes, the NEO-M8T-0 is pin-compatible with the NEO-M8N-0 and shares the same 12.0 x 16.0 mm NEO LCC layout. Per u-blox support and the cross-reference forum thread "Swapping NEO-M8N for an NEO-M8T chip", the M8T can be directly soldered onto an M8N footprint; the only engineering consideration is verifying which GPIO pins are used in the design, since M8T uses some pins for raw-data output that M8N leaves floating.
What is the timepulse (1 PPS) jitter of the NEO-M8T-0?
The NEO-M8T-0 produces a configurable 1 PPS timepulse output with sub-25 ns RMS jitter when locked to GNSS. According to u-blox datasheet UBX-15025193, the timing accuracy depends on the survey-in mode and reference constellation; with full GPS+GLONASS+Galileo+BeiDou visibility and at least 60 seconds of survey-in, the steady-state jitter falls below the 25 ns specification required for cellular base-station synchronization.
When should I choose NEO-M8T-0 over the ZED-F9T?
Choose the NEO-M8T-0 when you need low-cost, concurrent multi-GNSS timing in a small 12 x 16 mm module and when raw M8 platform observables are sufficient. Choose the ZED-F9T when you need multi-band L1/L2 reception, sub-10 ns jitter, or longer survey-in holdover for mission-critical infrastructure. Both are u-blox parts with compatible UBX protocol, so firmware-level migration is straightforward.
Can the LEA-M8T replace the NEO-M8T-0 as a drop-in?
No, the LEA-M8T is not a drop-in replacement for the NEO-M8T-0 because they use different form factors (17 x 22.4 mm LEA versus 12 x 16 mm NEO) with different pin counts and PCB footprints, despite sharing the same firmware feature set. Direct PCB-to-PCB swap is therefore impossible, and a redesign of the land pattern is required to migrate from NEO to LEA.
What is the operating voltage of the NEO-M8T-0?
The NEO-M8T-0 operates from a main supply of 2.7V to 3.6V, with a separate V_BCKP pin for backup battery. According to u-blox datasheet UBX-15025193, the typical supply current during continuous tracking is 25 mA (M8 concurrent mode); during low-duty-cycle timing operations the average current drops below 5 mA. A 3.3V LDO with at least 200 mA of headroom is recommended for the RF supply.
What is the best cross-brand drop-in equivalent for the NEO-M8T-0?
There is no true cross-brand drop-in equivalent for the NEO-M8T-0 in the 12 x 16 mm NEO LCC form factor; competing timing-grade receivers such as the u-blox ZED-F9T or Trimble Resolution-T SMT use larger, incompatible footprints. The closest functionally compatible drop-in options come from the same u-blox family - LEA-M8T, NEO-M8M-0, and NEO-M8P series - which share the NEO LCC land pattern.
Does the NEO-M8T-0 support raw GNSS observables output?
Yes, the NEO-M8T-0 outputs raw carrier-phase and pseudorange observables over UART, USB, SPI, or I2C (DDC). Per u-blox datasheet UBX-15025193, the raw measurements make this part suitable for geodesy, atmospheric research, and post-processed precision timing where carrier-phase solutions are required. The UBX-RXM-RAWX message provides raw measurement data at up to 1 Hz.
What surveying or timestamping applications suit the NEO-M8T-0?
The NEO-M8T-0 suits survey-in timing applications including 4G/LTE and 5G NR base-station synchronization (3GPP TS 36.214 eNodeB holdover), DVB-T/DAB broadcast transmitters, PMU phasor measurement in power grids, financial MiFID II timestamping servers, and scientific instruments such as radio telescopes. The combination of concurrent four-system GNSS, raw observables, and sub-25 ns timepulse jitter covers most sub-microsecond timing needs.
Where can I download the NEO-M8T-0 datasheet PDF?
The official NEO-M8T-0 datasheet PDF is hosted by u-blox at the URL listed on its product page. Per the Verified Web Data above, the NEO/LEA-M8T datasheet document UBX-15025193 (FW3) is the authoritative source for electrical specifications, pinout, and timing accuracy. Third-party mirrors on FindIC, Avaq, and Digchip also host the same PDF for backup access.
What is the operating temperature range of the NEO-M8T-0?
The NEO-M8T-0 operates from -40 C to +85 C as its industrial-grade temperature window. Per u-blox datasheet UBX-15025193, this range suits outdoor antenna-mounted electronics, indoor base-station cabinets, and industrial control cabinets. For automotive-grade timing (AEC-Q100) you must look at future u-blox products, since this part is rated for industrial/commercial deployment only.
エンジニアリング参考データ: NEO-M8T-0 — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
Choose the NEO-M8T-0 for compact timing designs (cellular small cells, IoT grandmasters, DVB-T transmitters) where the 12 x 16 mm NEO LCC layout fits and you need sub-25 ns timepulse jitter without RTK correction. Choose LEA-M8T-0 when a larger 17 x 22.4 mm footprint is acceptable, since it adds extra pins for advanced antenna management but otherwise shares the same firmware. Choose NEO-M8P-2 when you need centimeter-level RTK (drone survey, precision agriculture); it doubles current draw during RTK. Choose NEO-M8M-0 only for navigation applications where survey-in and raw observables are not required; it is significantly cheaper.
代替品との比較
| パラメータ | この製品 | LEA-M8T-0 | NEO-M8M-0 | NEO-M8P-2 | NEO-M8T-0-10 |
|---|---|---|---|---|---|
| Package | NEO LCC, 12 x 16 mm | LEA LCC, 17 x 22.4 mm | NEO LCC, 12 x 16 mm | NEO LCC, 12 x 16 mm | NEO LCC, 12 x 16 mm |
| Brand | u-blox | u-blox | u-blox | u-blox | u-blox |
| Concurrent GNSS | GPS + GLONASS + Galileo + BeiDou + QZSS | GPS + GLONASS + Galileo + BeiDou + QZSS | GPS + GLONASS + Galileo + BeiDou | GPS + GLONASS + Galileo + BeiDou | GPS + GLONASS + Galileo + BeiDou + QZSS |
| Tracking Sensitivity | -167 dBm | -167 dBm | -164 dBm | -160 dBm | -167 dBm |
| 1 PPS Jitter | sub-25 ns | sub-25 ns | ~30 ns | sub-25 ns | sub-25 ns |
| Survey-In Mode | Yes | Yes | No | No (RTK instead) | Yes |
| Raw GNSS Observables | Yes (UBX-RXM-RAWX) | Yes | No | Yes (RTK) | Yes |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| Supply Voltage | 2.7 V to 3.6 V | 2.7 V to 3.6 V | 2.7 V to 3.6 V | 2.7 V to 3.6 V | 2.7 V to 3.6 V |
| Approx. Unit Price (qty 1) | USD 65.20 | USD ~78 | USD ~28 | USD ~99 | USD ~65 |
主な差別化要因
- Multi-system concurrent GNSS plus survey-in timing （vs NEO-M8M-0)
- Raw GNSS observables (UBX-RXM-RAWX) available on same footprint （vs NEO-M8P-2)
- Reference-grade sensitivity (-167 dBm) in 12 x 16 mm form factor （vs LEA-M8T-0)
設計ノート
Estimated: at 3.3 V main supply and 25 mA continuous tracking, the NEO-M8T-0 draws approximately 83 mW under nominal conditions. Provide a linear LDO (such as a low-noise TPS7A02) rated for at least 200 mA peak, with a 10 uF + 0.1 uF decoupling pair close to the VCC pin. The V_BCKP pin should be tied to a separate coin cell or supercapacitor (1.5-3.6 V) so ephemeris and clock data survive main-supply outages; using the same rail for VCC and V_BCKP is acceptable only in designs where main supply never drops below 2.7 V.
Estimated: route the antenna signal to the RF_IN pad with a 50-ohm microstrip or coplanar waveguide; keep the trace length under 5 mm to minimize loss. Use a 50-ohm LNA with at least 18 dB gain and under 2.0 dB noise figure in the active antenna, or a 15-dB passive antenna with external LNA when the antenna is remote. Keep the GNSS-RF traces away from switching DC-DC converters (such as those powering the host MCU); at least 5 mm of ground stitching is recommended on both sides of the RF feed.
Do not rely on the NEO-M8T-0 in surveyed timing mode with fewer than 60 seconds of full sky visibility; the survey-in algorithm needs that interval to converge to nanosecond-class accuracy. Do not connect USB_DP/USB_DM to a USB host without a USB-to-UART bridge, because the device presents a USB-2.0 peripheral interface that can confuse enumeration. Finally, verify that the host processor parses the UBX-RXM-RAWX messages correctly - many open-source GPS libraries ignore raw observables and only parse NMEA, which forces the user to implement a custom parser to benefit from this part's raw-data output.
コンプライアンス情報
RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Qualified
鉛フリー
Yes
ハロゲンフリー
Yes
紛争鉱物
Compliant
Industrial-grade, not automotive AEC-Q100 qualified. GNSS receivers are subject to EAR / Wassenaar export licensing in some jurisdictions; consult your distributor for permit information. RoHS and REACH compliance confirmed per u-blox NEO/LEA-M8T datasheet UBX-15025193.
データ検証日: 2026-10-14
— データはXAIPARTの部品エンジニアリングチームによって検証・管理されています
関連検索
NEO-M8T-0
NEO-M8T-0 datasheet
u-blox NEO-M8T-0 price
NEO-M8T-0 timing module
u-blox M8 timing 1PPS receiver
NEO-M8T-0 vs LEA-M8T
NEO-M8T-0 vs ZED-F9T
NEO-M8T-0 cell tower synchronization
concurrent GNSS timing module 12x16mm
NEO-M8T-0 pinout diagram
what replaces the NEO-M8T-0
NEO-M8T-0 raw observables UBX-RXM-RAWX
関連部品&用語
u-blox
NEO-M8T-0
LEA-M8T-0
NEO-M8M-0
NEO-M8P-2
NEO-M8T-0-10
ZED-F9T
GNSS
GPS
GLONASS
Galileo
BeiDou
QZSS
GNSS timing module
timing receiver
1 PPS
timepulse
UBX protocol
NEO LCC form factor
LEA LCC form factor
survey-in mode
RoHS
REACH
3GPP TS 36.214
MiFID II
IEEE C37.118
pseudorange
carrier phase
RTK
1 / 1