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Texas Instruments SN74GTL2107PWR
- Part No.:
- SN74GTL2107PWR
- Manufacturer:
- Texas Instruments
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
SN74GTL2107PWR.pdf
- Description:
- IC TRANSLATOR UNIDIR 28TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,705
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Product details
Overview
SN74GTL2107PWR from Texas Instruments is a 12-bit bidirectional GTL–/GTL/GTL+ to LVTTL translator in TSSOP-28 package, operating at 3.3 V supply with VREF-adjustable reference (0.6–1.0 V), 16 mA LVTTL drive strength, and 15 mA GTL sink capability. It enables platform health management in dual-Xeon™ processor systems by translating between processor GTL I/O and LVTTL peripheral logic.
For engineers reviewing the SN74GTL2107PWR datasheet, SN74GTL2107PWR pinout, SN74GTL2107PWR application, or SN74GTL2107PWR equivalent, key selection criteria include GTL–/GTL/GTL+ voltage compatibility, open-drain vs. totem-pole output behavior, enable-controlled translation direction, series-terminated 30 Ω LVTTL outputs, and powered-down high-impedance input isolation.
Technical Context
The SN74GTL2107PWR implements two independent translation domains: EN1 controls 1AO–6AO and 1BI–6BI (6-bit group), while EN2 governs 7BO1/7BO2, 9AO/9BI, 10AI1/10AI2/10BO1/10BO2, and 11A/11BI/11BO (6-bit group). Each domain supports bidirectional signal flow with separate enable timing and internal delay compensation on 7BO1/7BO2 to prevent glitches during 5BI/6BI transitions.
It features mixed I/O types: LVTTL inputs/outputs (1AO–6AO, 9AO, 10AI1/10AI2) are totem-pole with 30 Ω series termination; GTL I/O (1BI–6BI, 9BI, 10BO1/10BO2, 11BI/11BO) are open-drain with external pull-up; VREF sets GTL threshold (VREF ± 50 mV); and all LVTTL inputs remain high-impedance with no leakage when VCC = 0 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | VCC = 3.0–3.6 V - ensures compatibility with 3.3-V LVTTL systems and stable GTL interface operation |
| VREF Range | 0.5–1.8 V - configures GTL– (0.6 V), GTL (0.8 V), or GTL+ (1.0 V) input thresholds for precise signal recognition |
| LVTTL Output Drive | IOL = 16 mA / IOH = –16 mA - supports direct connection to standard LVTTL loads without external buffers |
| GTL Output Sink | IOL = 15 mA - enables robust open-drain GTL bus driving with typical 1.2-V or 1.5-V VTT termination |
| Propagation Delay | tPHL/tPLH = 2–10 ns (A↔B), up to 350 ns (B→B) - meets Xeon™ platform timing budgets for health-monitoring signals like PROCHOT_L and THRMTRIP_L |
| ESD Rating | HBM = 2000 V, MM = 200 V, CDM = 1000 V - qualifies for use in production server motherboard environments with handling exposure |
| Operating Temperature | –40°C to +85°C - supports industrial-grade thermal operation in dual-CPU server chassis |
Pinout & Package
TSSOP-28 (PW) package: 9.7 mm × 4.4 mm × 1.2 mm body, 0.65 mm pitch, lead-free NiPdAu finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VREF | GTL reference voltage input - sets input threshold for all GTL I/O pins (±50 mV window) |
| 2–6, 8, 10–13, 15, 23 | ENn / nAn | LVTTL enable inputs and totem-pole outputs - EN1 controls pins 1AO–6AO; EN2 controls 9AO, 10AI1/10AI2, etc. |
| 7, 9, 16–22, 24–27 | nBn | GTL–/GTL/GTL+ open-drain I/O - require external pull-up to VTT (1.2 V or 1.5 V); support bidirectional translation |
| 14 | GND | Ground reference - common return for all I/O and supply paths |
| 28 | VCC | 3.3-V power supply - powers internal logic and LVTTL outputs; must be decoupled near pin |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional Translation | Two independent enable-controlled domains (EN1/EN2) allow simultaneous A→B and B→A signal flow without bus contention |
| Powered-Down Input Isolation | All LVTTL inputs (including 10AI1/10AI2) present high-impedance state with zero leakage to VCC when VCC = 0 V |
| GTL Glitch Suppression | Internal 100-ns delay on 7BO1/7BO2 prevents low-glitch transients during 5BI/6BI rising-edge transitions |
| Series-Terminated Outputs | 30 Ω on-chip series resistor on all LVTTL outputs eliminates need for discrete termination resistors on PCB |
| JESD 78 Latch-Up Immunity | Qualified to JEDEC JESD78 Class II - ensures robustness against CMOS latch-up in high-noise server backplanes |
Applications
| Processor Thermal Monitoring | Dual-CPU Platform Health Management |
|---|---|
Use Scenario: Translating PROCHOT_L and THRMTRIP_L signals between Xeon™ CPU GTL I/O and southbridge LVTTL logic. IC Role / Device Role / Timing Role: Bidirectional level shifter with EN-controlled direction and glitch-free 7BO1/7BO2 outputs for critical thermal trip signaling. Use Value: Enables real-time thermal throttling coordination across dual-processor systems without timing violations or false trips. |
Use Scenario: Interfacing CPU1/CPU2 SMI_L, 1ERR_L, and NMI_L signals to shared platform controller hub (PCH). IC Role / Device Role / Timing Role: GTL-to-LVTTL translator with independent enable domains isolating CPU1 and CPU2 health channels. Use Value: Prevents cross-CPU interference during error reporting and system management interrupt propagation. |
| Server Power Sequencing | Platform Control Signal Bridging |
Use Scenario: Routing FORCEPR_L and PWR_GD signals between GTL-based power supervisor ICs and LVTTL-configured reset controllers. IC Role / Device Role / Timing Role: Open-drain GTL output (11BO) and totem-pole LVTTL input (11A) support wired-OR power-good assertion with controlled rise time. Use Value: Ensures deterministic power sequencing across multi-rail server power supplies with no shoot-through risk. |
Use Scenario: Connecting GTL-based memory controller status lines (e.g., RAS_N, CAS_N) to LVTTL FPGA-based diagnostic logic. IC Role / Device Role / Timing Role: 12-bit parallel translator with per-group enables allows selective activation of debug signal paths during runtime. Use Value: Reduces debug footprint by eliminating discrete level-shifters while maintaining signal integrity on high-speed control buses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar GTL-to-LVTTL translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74GTL16212DGGR | 24-bit, 56-pin TSSOP, dual VREF inputs, higher channel count, no built-in 30 Ω series termination | Suitable for wider data buses (e.g., address/control lines), requires external termination resistors | Select when scaling beyond 12 bits or needing independent VREF per port group |
| SN74AVC16T245DGGR | 16-bit AVC translator, 1.2–3.6 V dual-supply, no GTL-specific VREF, lower drive (12 mA), no glitch suppression | General-purpose voltage translation only; lacks GTL threshold tuning and thermal-signal timing hardening | Select for non-GTL mixed-voltage I/O where GTL compliance is not required |
Compared with SN74GTL2107PWR, SN74GTL16212DGGR offers greater channel density but demands external termination and lacks the 7BO1/7BO2 glitch suppression critical for thermal signaling; SN74AVC16T245DGGR provides broader voltage flexibility but cannot meet GTL–/GTL/GTL+ threshold accuracy or Xeon™ platform timing requirements.
Availability
SN74GTL2107PWR is available at Aetrix Electronics and suitable for dual-processor server platforms, thermal management subsystems, and platform controller hub (PCH) interface designs requiring stable component supply and long-term industrial availability.
Supply support for SN74GTL2107PWR 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
Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and communications markets.
The SN74GTL2107PWR belongs to TI's 74GTL logic family, engineered specifically for Intel Xeon™ processor platform interoperability-enabling reliable GTL–/GTL/GTL+ to LVTTL signal bridging in high-reliability server health monitoring circuits.
FAQ
What is the function of VREF on SN74GTL2107PWR?
VREF on SN74GTL2107PWR sets the input threshold voltage for all GTL–/GTL/GTL+ I/O pins (1BI–6BI, 9BI, 10BO1/10BO2, 11BI/11BO). It must be externally supplied at 0.6 V for GTL–, 0.8 V for GTL, or 1.0 V for GTL+, enabling precise recognition of GTL logic levels. The SN74GTL2107PWR uses VREF ± 50 mV as its valid input window, ensuring noise margin in high-speed server backplanes.
Does SN74GTL2107PWR support bidirectional translation on all channels?
Yes, SN74GTL2107PWR supports bidirectional translation across all 12 channels, grouped into two independently enabled domains: EN1 controls 1AO–6AO ↔ 1BI–6BI (6-bit), and EN2 controls 9AO ↔ 9BI, 10AI1/10AI2 ↔ 10BO1/10BO2, and 11A ↔ 11BI/11BO (6-bit). Direction is determined by enable state and signal source-no external direction control pin is needed per channel.
How does SN74GTL2107PWR behave when powered down (VCC = 0 V)?
When VCC = 0 V, all LVTTL inputs (including 10AI1 and 10AI2) enter a true high-impedance state with no leakage current to the power rail-even if pulled to 3.3 V externally. GTL inputs and open-drain outputs also exhibit no leakage under the same condition. However, LVTTL totem-pole outputs (e.g., 1AO–6AO, 9AO) may conduct if externally pulled high while VCC is grounded.
What is the purpose of the 30 Ω series termination on SN74GTL2107PWR LVTTL outputs?
The 30 Ω on-die series termination on SN74GTL2107PWR LVTTL outputs (1AO–6AO, 9AO, 10AI1/10AI2) matches typical PCB trace impedance in server motherboard layouts, minimizing signal reflections and overshoot on high-speed control lines such as PROCHOT_L and THRMTRIP_L. This eliminates the need for discrete 30 Ω resistors in series with each output, reducing BOM count and layout area.
Is SN74GTL2107PWR compatible with GTL+, GTL, and GTL– standards simultaneously?
Yes, SN74GTL2107PWR supports all three GTL variants via VREF configuration: GTL– (VREF = 0.6 V), GTL (VREF = 0.8 V), and GTL+ (VREF = 1.0 V). Electrical characteristics-including VIH/VIL windows, VOL/VOH levels, and switching delays-are validated across all three modes per the datasheet. The SN74GTL2107PWR maintains full functionality and timing compliance in each mode without hardware change.
SN74GTL2107PWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74GTL
- Package/Case:
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Translator Type:
- Mixed Signal
- Channel Type:
- Unidirectional
- Number of Circuits:
- 1
- Channels per Circuit:
- 12
- Voltage - VCCA:
- -
- Voltage - VCCB:
- -
- Input Signal:
- GTL, LVTTL
- Output Signal:
- LVTTL, GTL
- Output Type:
- Open Drain
- Data Rate:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-TSSOP (0.173", 4.40mm Width)
SN74GTL2107PWR FAQ
1.How can I place an order for SN74GTL2107PWR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74GTL2107PWR 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 SN74GTL2107PWR reliable?
The price and inventory of SN74GTL2107PWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74GTL2107PWR is usually 5 days.
3.What payment methods are accepted for SN74GTL2107PWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74GTL2107PWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74GTL2107PWR?
SN74GTL2107PWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74GTL2107PWR 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 SN74GTL2107PWR?
For technical support, including SN74GTL2107PWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74GTL2107PWR requirements.
6.How does Aetrix verify that SN74GTL2107PWR is sourced from the original manufacturer or authorized distributors?
All SN74GTL2107PWR 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 SN74GTL2107PWR meets industry standards.
7.What is the process for return or replacement of SN74GTL2107PWR?
All SN74GTL2107PWR units undergo pre-shipment inspection (PSI). If there is an issue with SN74GTL2107PWR, 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 SN74GTL2107PWR part is unused and in its original packaging.
Return procedure for SN74GTL2107PWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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