GTL2014PW,118 - 4-Bit LVTTL to GTL Transceiver | NXP | Level Shifter
N.º de pieza: GTL2014PW,118 ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $0.64 | $0,64 |
| 10 | $0.58 | $5,80 |
| 100 | $0.52 | $52,00 |
| 500 | $0.47 | $235,00 |
| 1.000 | $0.42 | $420,00 |
GTL2014PW,118 Descripción general
A voltage level translator (also called a level shifter or bus transceiver) is an interface IC that allows logic devices operating at different supply domains to exchange signals safely. In the power-management and interface-IC hierarchy, level translators sit between the system logic family (LVTTL) and a lower-swing bus standard (GTL, Gunning Transceiver Logic), where the GTL bus reference voltage (VTT) and its associated input/output thresholds define the logic levels on the bus side.
Key features include 4-bit bidirectional data paths, a direction (DDIR) control pin that lets the part function either as a GTL-to-LVTTL sampling receiver or as an LVTTL-to-GTL interface, and non-latching operation for transparent signal translation. According to NXP, the GTL2014 is optimized for workstation and server applications with data rates up to 200 MHz, making it one of the higher-speed LVTTL-to-GTL translators in its class.
Architecturally, the device uses mixed-signal open-drain GTL cell circuitry: on the GTL side, outputs pull the bus down toward the GTL reference while resistive termination restores the high level, and on the LVTTL side, standard CMOS push-pull buffers drive 3.3 V logic. This asymmetric topology is characteristic of GTL translation and minimizes bus loading at high frequency.
Typical applications include processor-to-memory bus interfacing in servers and workstations, backplane bridging between 3.3 V LVTTL controllers and GTL buses, and communication-equipment line cards requiring GTL signaling.
Design consideration: the GTL bus requires external termination to VTT; ensure VTT supply and termination resistance are sized for the bus load, and keep GTL traces short and impedance-controlled for reliable 200 MHz operation.
This page synthesizes distributor pricing, drop-in alternative analysis, and practical design notes not found in the manufacturer datasheet, with pricing as of 2026-10-19.
Alternativas directas para GTL2014PW,118 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con GTL2014PW,118 (mismo factor de forma y huella) — difiere en Direction Control, Package, Function, Number of Channels, Operating Temperature Range.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
GTL2014PW,112
✅ Sustitución directa✓ En stock
$0.58 / unidad
Ver hoja de datos →GTL2014PW/G,118
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
GTL2014PW
✅ Sustitución directa✓ En stock
$0.98 / unidad
Ver hoja de datos →GTL2014PW,118 Especificaciones
| Función | 4-bit LVTTL to GTL translating transceiver |
| Number of Channels | 4 (bidirectional) |
| Translator Type | Mixed Signal Translator, Bidirectional, Non-latching |
| Input Voltage Domain (LVTTL side) | 3.3 V LVTTL |
| Output Bus Type | GTL- / GTL / GTL+ |
| Direction Control | Yes (direction pin) |
| Maximum Data Rate | 200 MHz |
| Encapsulado | 14-TSSOP (0.173 in / 4.40 mm width), SOT-402-1 |
| Tipo de montaje | Surface Mount |
| Packaging | Tape & Reel (TR) |
| Lead Free Status | Lead Free |
| Estado RoHS | RoHS Compliant |
| Marca | NXP Semiconductors |
| Unit Price (qty 1) | 0.6417 USD (as of 2026-10-19) |
Guía de configuración de pines de GTL2014PW,118 14-tssop (0.173 in / 4.40 mm width), sot-402-1
Configuración de pines para GTL2014PW,118 (encapsulado 14-tssop (0.173 in / 4.40 mm width), sot-402-1). La numeración de pines, las funciones y los diagramas de conexión se definen en la hoja de datos del fabricante. Consúltela para conocer el footprint exacto y las directrices de soldadura.
No hay datos detallados de patillaje disponibles para GTL2014PW,118.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
GTL2014PW,118 es adecuado para 6 aplicacións: Server and Workstation Bus Interfacing, Processor-to-Backplane Bridging, Communication Equipment Line Cards, Test and Measurement Instrumentation, Legacy Server Board Repair and Maintenance, Embedded Systems with Mixed Logic Domains.
Server and Workstation Bus Interfacing
The GTL2014PW,118 was purpose-built for this environment: NXP states the device is optimized for workstation and server applications up to 200 MHz, where a 3.3 V LVTTL host controller must drive or receive signals on a low-swing GTL/GTL+ bus. The 4-bit bidirectional non-latching architecture allows transparent translation during read and write phases, and the direction pin switches the transceiver between GTL sampling receiver mode and LVTTL-to-GTL drive mode under system control. Because GTL signaling swings only around the VTT reference, bus power and EMI are substantially reduced compared with full-swing LVTTL at the same frequency, which matters on long, heavily loaded memory and processor buses.
Recomendado
Processor-to-Backplane Bridging
In rack and blade systems, controller cards operating at 3.3 V LVTTL frequently need to exchange control and data signals with backplanes wired to GTL/GTL+ signaling standards. The GTL2014PW,118 fits this role because its GTL-side thresholds are referenced to the GTL bus reference voltage VTT while its LVTTL side meets standard 3.3 V logic levels, per the NXP product description. Four independent bidirectional channels let one 14-TSSOP device translate a nibble-wide control or data group, and the non-latching transparent path keeps propagation delay minimal for command handshakes. The open-drain GTL cells tolerate bus contention during direction changes, improving robustness on shared backplane nets.
Recomendado
Communication Equipment Line Cards
Telecom and datacom line cards mix 3.3 V LVTTL control logic with low-swing GTL buses used for high-speed backplane and inter-board signaling. The GTL2014PW,118 is suitable here because it delivers up to 200 MHz translation performance in a compact 14-TSSOP (SOT-402-1) package, conserving card area, and its RoHS-compliant, lead-free construction (,118 suffix) meets modern telecom manufacturing requirements. The direction pin enables a single device to serve both transmit and receive directions of a 4-bit control group, reducing component count versus unidirectional translators. Designers should terminate the GTL side to VTT and keep traces impedance-controlled to preserve signal integrity at speed.
Recomendado
Test and Measurement Instrumentation
Bench instruments and automated test equipment frequently need to probe or stimulate GTL-signaled buses while their own control logic runs at 3.3 V LVTTL. The GTL2014PW,118 serves as a clean bidirectional interface: its GTL sampling receiver mode captures low-swing GTL waveforms with thresholds referenced to VTT, while its LVTTL-to-GTL drive mode injects test signals onto the bus. Non-latching transparent operation means no clock-domain artifacts are introduced during capture, and the 200 MHz-class bandwidth, per NXP's optimization statement, covers the majority of GTL bus rates found in legacy server and workstation test fixtures. The TSSOP-14 footprint also fits probe-head adapters easily.
Recomendado
Legacy Server Board Repair and Maintenance
Many legacy server and workstation platforms were designed around GTL/GTL+ buses and still require service parts. The GTL2014PW,118 remains an active NXP part, making it an appropriate repair component: it drops directly onto existing 14-TSSOP (SOT-402-1) footprints with no board rework, and the ,118 tape-and-reel code guarantees lead-free, RoHS-compliant units for modern rework profiles. Because the direction-controlled transparent architecture is die-identical across the GTL2014 ordering variants (,112, /G, base PW), service organizations can substitute whichever variant is in stock without layout or firmware changes, minimizing repair turnaround and qualification effort.
Recomendado
Embedded Systems with Mixed Logic Domains
Industrial and automotive-adjacent embedded designs sometimes inherit GTL-referenced ASIC or FPGA companion buses while the main MCU operates at 3.3 V LVTTL. The GTL2014PW,118 bridges these domains deterministically: four bidirectional channels translate a full control nibble, thresholds track the GTL bus reference VTT so noise margin is maintained across board-level ground variation, and the direction pin lets firmware reconfigure data flow at runtime. NXP's specification that the LVTTL inputs tolerate the 3.3 V system interface means no level-clamping circuitry is needed on the controller side. At up to 200 MHz capability, the device leaves generous timing margin for typical embedded bus clocks in the tens of MHz.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para GTL2014PW,118 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | GTL2014PW,112 | GTL2014PW/G,118 | GTL2014PW |
|---|---|---|---|---|
| Package | 14-TSSOP (SOT-402-1, 4.40 mm width) | 14-TSSOP (SOT-402-1) - same | 14-TSSOP (SOT-402-1) - same | 14-TSSOP (SOT-402-1) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Bits / Channels | 4-bit bidirectional | 4-bit bidirectional | 4-bit bidirectional | 4-bit bidirectional |
| LVTTL Interface Voltage | 3.3 V LVTTL | 3.3 V LVTTL | 3.3 V LVTTL | 3.3 V LVTTL |
| GTL Bus Compatibility | GTL- / GTL / GTL+ | GTL- / GTL / GTL+ | GTL- / GTL / GTL+ | GTL- / GTL / GTL+ |
| Latching | Non-latching (transparent) | Non-latching | Non-latching | Non-latching |
| Direction Control | Yes (direction pin) | Yes | Yes | Yes |
| Optimized Data Rate | Up to 200 MHz | Up to 200 MHz | Up to 200 MHz | Up to 200 MHz |
| Packing | Tape & Reel (,118) | Alternate reel packing (,112) | Tape & Reel (legacy /G code) | Base code (packing unspecified) |
Diferenciadores clave
- Active status with 200 MHz-class performance (frente a GTL2014PW,112)
- Dedicated GTL open-drain architecture (frente a GTL2014PW/G,118)
- Bidirectional direction control on 4 channels (frente a Unidirectional GTL drivers/receivers)
Notas de diseño
The GTL side of the GTL2014PW,118 operates against the GTL bus reference voltage VTT with open-drain pull-down cells, so external termination resistors to VTT are required on every GTL line - the translator does not drive the high level actively. Place the VTT termination network close to the bus stub and keep GTL traces short and impedance-controlled; at the device's 200 MHz-class operating range, stub reflections on long unterminated traces cause sampling errors. Verify the VTT rail can sink the combined pull-down current of all four channels.
Do not drive the GTL bus while another GTL driver is active unless the system protocol guarantees arbitration, because GTL is a wired-AND style bus where multiple drivers pull down against shared termination. The direction pin must be switched only when the bus is idle; switching direction during a transaction can cause momentary bus contention. Also confirm that the 3.3 V LVTTL side supply is stable before asserting the direction control, per standard NXP GTL translator application practice.
Estimate: supply decoupling should use at least one 0.1 uF ceramic capacitor directly at each supply pin of the 14-TSSOP package, with a bulk 10 uF capacitor per device group. GTL bus current flows largely through the VTT termination supply, not the translator's logic supply, so size the VTT regulator for the termination network's static and dynamic current (VTT/Rterm per line, plus transient pull-down current for all four channels) rather than for the IC quiescent load.
Información de cumplimiento
RoHS Compliant and Lead Free per distributor specification data (digchip listing) and the NXP ,118 ordering suffix convention. REACH, halogen-free, and conflict-minerals status not stated in provided data.
