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NXP Semiconductors GTL2002D,118
- Part No.:
- GTL2002D,118
- Manufacturer:
- NXP Semiconductors
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
GTL2002D,118.pdf
- Description:
- IC TRANSLATOR BIDIRECTIONAL 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,256
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Product details
Overview
GTL2002D,118 from NXP Semiconductors is a 2-bit bidirectional NMOS pass-transistor voltage translator IC enabling seamless level shifting between 1.0 V and 5.0 V buses without direction control. It features 6.5 Ω typical ON-state resistance, <5.5 ns propagation delay (tPLH/tPHL), and operates across −40 °C to +85 °C ambient temperature. It is used in I²C-bus voltage translation between low-voltage processors (e.g., 1.2 V/1.8 V CPU I/O) and 3.3 V/5.0 V peripheral interfaces.
For engineers reviewing the GTL2002D,118 datasheet, GTL2002D,118 pinout, GTL2002D,118 application, or GTL2002D,118 equivalent, key selection criteria include bidirectional clamp architecture, reference transistor biasing (SREF/GREF/DREF), SO8 package thermal and layout constraints, and compatibility with GTL, LVTTL, TTL, and CMOS logic families.
Technical Context
The GTL2002D,118 implements Gunning Transceiver Logic–Transceiver Voltage Clamp (GTL-TVC) architecture using matched NMOS pass transistors - two signal channels (S1/D1, S2/D2) and one reference channel (SREF/DREF/GREF). Its operation relies on gate-controlled clamping: when GREF is high and DREF is pulled to VCC, the SREF voltage sets the upper output limit on Sn ports, while Dn ports are pulled to VCC via external resistors.
No internal power supply is required; translation direction is determined dynamically by relative voltage levels on Sn and Dn ports. All transistors are fabricated identically for minimal inter-channel mismatch in Ron and propagation delay, and ESD protection exceeds 2000 V HBM and 1000 V CDM per JESD22 standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | 2-bit bidirectional voltage translator with no direction pin; enables automatic HIGH-to-LOW and LOW-to-HIGH level shifting |
| ON-state resistance (Ron) | 6.5 Ω typical at VGREF = 4.5 V, IO = 64 mA - ensures low insertion loss and minimal VOL rise under load |
| Propagation delay | 0.5–5.5 ns (tPLH/tPHL) - supports >200 MHz data rates in translator-mode applications |
| Voltage translation range | 1.0 V ↔ 5.0 V bidirectional - compatible with GTL, GTL+, LVTTL/TTL, and 5 V CMOS logic families |
| ESD rating | 2000 V HBM (JESD22-A114), 1000 V CDM (JESD22-C101) - protects downstream low-voltage devices during hot insertion |
| Operating temperature | −40 °C to +85 °C - qualified for industrial and embedded system environments |
| Supply requirement | No VCC required - powered solely by signal rails; eliminates need for auxiliary supply routing |
Pinout & Package
Package: SO8 (SOT96-1), plastic small outline package, 8 leads, body width 3.9 mm, lead pitch 1.27 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - GND | Ground reference | Common 0 V return for all internal transistors; must be low-impedance connection to PCB ground plane |
| 2 - SREF | Source of reference transistor | Connected to processor core supply (e.g., 1.2 V/1.8 V); sets maximum output voltage on Sn ports |
| 3 - S1 | Signal port 1 (low-voltage side) | Bidirectional I/O for lower-voltage bus (e.g., CPU I/O); follows D1 when LOW, clamped to SREF when HIGH |
| 4 - S2 | Signal port 2 (low-voltage side) | Second independent bidirectional I/O channel; electrically identical to S1 with matched characteristics |
| 5 - D2 | Signal port 2 (high-voltage side) | Bidirectional I/O for higher-voltage bus (e.g., 3.3 V I²C); pulled to VCC via external resistor, clamped by SREF |
| 6 - D1 | Signal port 1 (high-voltage side) | First high-side I/O channel; functions identically to D2 with symmetrical Ron and timing |
| 7 - DREF | Drain of reference transistor | Connected to higher-voltage rail (e.g., 3.3 V/5 V) via 200 kΩ pull-up; enables clamp activation when GREF is high |
| 8 - GREF | Gate of reference transistor | Control input tied to DREF; must be ≥1.5 V above SREF for reliable translator operation |
Key Features
| Feature | Design Value |
|---|---|
| Flow-through pinout | SO8 pin arrangement (GND–SREF–S1–S2–D2–D1–DREF–GREF) enables straight PCB trace routing and minimizes crosstalk |
| Matched transistor fabrication | All NMOS pass transistors share identical process characteristics - ensures ≤5% Ron deviation and <0.2 ns inter-channel delay skew |
| Hot-insertion support | No power supply or latch-up risk; withstands live insertion into powered backplanes with full ESD robustness |
| 5 V tolerant inputs | Dn and DREF pins accept up to +7.0 V (per limiting values table) - safe interface with legacy 5 V peripherals |
| Low standby current | Gate leakage <5 µA at VI = 5 V - negligible quiescent power draw in idle state |
Applications
| I²C-Bus Level Translation | Processor Core Interface Protection |
|---|---|
|
Use Scenario: Translating bidirectional I²C signals between a 1.2 V/1.8 V application processor and 3.3 V sensors or EEPROMs. IC Role / Device Role / Timing Role: GTL2002D,118 acts as a passive clamp-based translator - no clock or direction control needed; handles both SDA and SCL lines simultaneously. Use Value: Eliminates need for dual-directional GPIO-controlled translators or complex bus arbitration; supports standard I²C timing with <5.5 ns added delay. |
Use Scenario: Safeguarding low-voltage CPU I/O pins (e.g., 1.0 V core) against overvoltage from 5 V legacy peripherals during system bring-up. IC Role / Device Role / Timing Role: GTL2002D,118 serves as a fail-safe voltage clamp - limits Sn port voltage to SREF level regardless of Dn rail voltage. Use Value: Prevents permanent damage to sub-1.2 V I/O structures; provides 2000 V HBM ESD immunity without external TVS diodes. |
| Multi-Voltage Backplane Interfacing | GTL/GTL+ to LVTTL Migration |
|
Use Scenario: Enabling communication between mixed-voltage ASICs (1.5 V logic) and FPGA I/O banks (2.5 V/3.3 V) on a shared board-level bus. IC Role / Device Role / Timing Role: GTL2002D,118 provides channel-isolated, impedance-matched translation - each Sx/Dx pair operates independently with matched Ron. Use Value: Maintains signal integrity across voltage domains; avoids timing skew between parallel data lines due to transistor matching. |
Use Scenario: Upgrading legacy GTL/GTL+ memory subsystems (1.2 V swing) to modern LVTTL/TTL (2.5 V/3.3 V) controllers without redesigning PCB layout. IC Role / Device Role / Timing Role: GTL2002D,118 converts GTL differential thresholds to single-ended TTL-compatible levels using its reference clamp architecture. Use Value: Enables drop-in replacement of discrete resistor-divider or active buffer solutions - reduces component count and board area by >60%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional voltage translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NLVM2002MUTAG | SO8 package, same 2-bit bidirectional function, but uses integrated 10 kΩ pull-up resistors on Dn ports - eliminates external resistors but increases static current | Preferred where board space is constrained and fixed 3.3 V Dn bias is acceptable; not suitable for variable VCC or hot-swap scenarios requiring dynamic pull-up control | Select NLVM2002MUTAG only if external resistor omission outweighs increased quiescent power and reduced flexibility in bias voltage selection. |
| TXB0102RUGR | 2-bit auto-direction-sensing translator with integrated charge pump; requires 1.2–3.6 V supply; Ron ≈ 12 Ω - higher than GTL2002D,118's 6.5 Ω | Supports wider voltage combinations (e.g., 1.2 V ↔ 5 V) with internal level-shifting circuitry; adds ~10 ns propagation delay vs. GTL2002D,118's 1.5 ns typical | Choose TXB0102RUGR when supply rail is available and direction detection must be fully autonomous; avoid when minimal delay and lowest Ron are critical. |
Compared with NLVM2002MUTAG and TXB0102RUGR, the GTL2002D,118 delivers the lowest ON-resistance and shortest propagation delay without requiring any supply voltage - making it optimal for high-speed, ultra-low-power, supply-constrained bidirectional translation where external bias control is acceptable.
Availability
GTL2002D,118 is available at Aetrix Electronics and suitable for industrial control interfaces, embedded processor I/O expansion, and automotive infotainment subsystems requiring stable component supply across extended temperature ranges.
Supply support for GTL2002D,118 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The GTL2002D,118 belongs to NXP's GTL-TVC family of passive voltage translators, designed specifically for high-speed, low-latency, supply-free level shifting in mixed-voltage digital systems - particularly targeting processor-to-peripheral interfacing in space- and power-constrained designs.
FAQ
What is the maximum allowable voltage on the Dn pins of the GTL2002D,118?
The GTL2002D,118 specifies a maximum voltage of +7.0 V on Dn pins (per Table 7 limiting values), with absolute maximum ratings applying under transient conditions. For continuous operation, recommended voltage is ≤5.5 V (Table 8). This 5 V tolerance allows direct interfacing with legacy TTL and CMOS peripherals without external protection circuitry - a key design advantage of the GTL2002D,118.
Does the GTL2002D,118 require an external power supply to operate?
No, the GTL2002D,118 requires no VCC or external power supply. It operates entirely from signal rail voltages applied to its Sx, Dx, SREF, DREF, and GREF pins. This eliminates power distribution complexity and reduces system BOM count - a defining feature of the GTL2002D,118's passive NMOS clamp architecture.
How is bidirectional translation achieved without a direction pin in the GTL2002D,118?
The GTL2002D,118 achieves directionless operation through NMOS transistor physics: when either Sn or Dn is driven LOW, the corresponding pass transistor turns ON, creating a low-resistance path. When the higher-voltage side goes HIGH, the lower side is clamped to SREF voltage. This self-governing behavior - inherent to the GTL-TVC topology - is why the GTL2002D,118 needs no direction control logic.
What is the recommended pull-up resistor value for Dn pins when using GTL2002D,118 with a 3.3 V bus and 1.2 V SREF?
Per Table 6, for 3.3 V pull-up and 15 mA clamp current, the nominal resistor value is 197 Ω; the +10% column recommends ≥217 Ω to ensure pass voltage stays ≤350 mV. This value guarantees reliable LOW-level output (VOL) and prevents excessive current through the GTL2002D,118's pass transistors - critical for maintaining signal integrity and thermal safety in the GTL2002D,118.
Can the GTL2002D,118 be used for unidirectional voltage translation?
Yes, the GTL2002D,118 supports unidirectional down-translation (e.g., 3.3 V → 1.2 V) and up-translation (e.g., 1.2 V → 3.3 V) by configuring GREF/DREF bias and external pull-ups per Sections 8.2 and 8.3. Its bidirectional capability is inherent, but restricting signal flow on one side yields deterministic unidirectional behavior - a flexible feature confirmed in the GTL2002D,118 application design-in guidelines.
GTL2002D,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Translator Type:
- Voltage Level
- Channel Type:
- Bidirectional
- Number of Circuits:
- 1
- Channels per Circuit:
- 2
- Voltage - VCCA:
- 1 V ~ 5.5 V
- Voltage - VCCB:
- 1 V ~ 5.5 V
- Input Signal:
- -
- Output Signal:
- -
- Output Type:
- Open Drain
- Data Rate:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- Auto-Direction Sensing
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC (0.154", 3.90mm Width)
GTL2002D,118 FAQ
1.How can I place an order for GTL2002D,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for GTL2002D,118 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for GTL2002D,118 reliable?
The price and inventory of GTL2002D,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GTL2002D,118 is usually 5 days.
3.What payment methods are accepted for GTL2002D,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GTL2002D,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GTL2002D,118?
GTL2002D,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GTL2002D,118 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for GTL2002D,118?
For technical support, including GTL2002D,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GTL2002D,118 requirements.
6.How does Aetrix verify that GTL2002D,118 is sourced from the original manufacturer or authorized distributors?
All GTL2002D,118 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that GTL2002D,118 meets industry standards.
7.What is the process for return or replacement of GTL2002D,118?
All GTL2002D,118 units undergo pre-shipment inspection (PSI). If there is an issue with GTL2002D,118, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The GTL2002D,118 part is unused and in its original packaging.
Return procedure for GTL2002D,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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