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Texas Instruments SN10KHT5541DWRG4
- Part No.:
- SN10KHT5541DWRG4
- Manufacturer:
- Texas Instruments
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
SN10KHT5541DWRG4.pdf
- Description:
- IC TRANSLATOR UNIDIR 24SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,760
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Product details
Overview
SN10KHT5541DWRG4 from Texas Instruments is an octal ECL-to-TTL translator IC with noninverting 3-state outputs, designed for CPU/bus-oriented signal translation between –5.2 V ECL and 5 V TTL logic domains. It features dual output-enable inputs (OE1 ECL-compatible, OE2 TTL-compatible), flow-through pin architecture, and operates from 0°C to 75°C with propagation delays as low as 1.1 ns (tPLZ).
For engineers reviewing the SN10KHT5541DWRG4 datasheet, SN10KHT5541DWRG4 pinout, SN10KHT5541DWRG4 application, or SN10KHT5541DWRG4 equivalent, this device supports high-density bus interface design where mixed-voltage domain synchronization, low-noise layout, and simultaneous ECL/TTL control enablement are critical.
Technical Context
The SN10KHT5541DWRG4 implements a dual-rail translation architecture with separate VCC (5 V) and VEE (–5.2 V) supplies, enabling direct interfacing between 10KH ECL logic families and standard TTL systems. Its ANDed OE1/OE2 enable logic allows flexible system-level control without level-shifting circuitry.
It uses a flow-through pinout (inputs on left, outputs on right, power/ground centered) to minimize trace crosstalk and ground bounce in high-speed PCB layouts. The device is characterized for 0°C to 75°C operation and supports 48 mA sink current per output with 5 pF input capacitance and 7 pF output capacitance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 4.5 V to 5.5 V - powers TTL-side logic and output drivers; requires stable 5 V rail with ≤100 mV ripple. |
| VEE Supply | –4.94 V to –5.46 V - powers ECL-side inputs and internal biasing; must be well-regulated negative supply. |
| tPLZ / tPHZ | 1.1 ns (min) to 7.8 ns (max) - defines fastest achievable output disable timing from active to high-impedance state. |
| IOL / IOH | 48 mA sink / –15 mA source - supports driving standard TTL loads including 74LS and 74ALS fanouts. |
| VIH/VIL (TTL) | 2.0 V / 0.8 V - compatible with standard TTL input thresholds; no external pull-ups required. |
| VIH/VIL (ECL) | –810 mV / –1480 mV (at 25°C) - matches 10KH ECL logic levels; accepts standard ECL gate outputs directly. |
| Operating Temp | 0°C to 75°C - qualified for commercial/industrial computing environments, not extended automotive or military ranges. |
Pinout & Package
SN10KHT5541DWRG4 is packaged in a 24-pin SOIC (DW package), 300-mil width, RoHS-compliant with NiPdAu lead finish and MSL Level-1 rating. Pin 12 is center-ground; pins 11 and 13 are VCC and VEE respectively, minimizing switching noise via symmetric power/ground distribution.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–8 (A1–A8) | ECL Data Inputs | Accept –5.2 V referenced differential ECL signals; internally terminated to VEE. |
| 9, 10 (OE1, OE2) | Output Enable Inputs | OE1: ECL-compatible control (–1.13 V typical VIH); OE2: TTL-compatible (2.0 V VIH); both must be high for output enable. |
| 11 (VCC) | TTL Supply Rail | 5 V supply for output buffers and TTL-side logic; bypass capacitor required near pin. |
| 12 (GND) | Common Ground Reference | Shared reference for TTL logic and output stage; tied to system ground plane. |
| 13 (VEE) | ECL Supply Rail | –5.2 V supply for input receivers and internal biasing; requires low-ESR local decoupling. |
| 14–21 (Y1–Y8) | TTL 3-State Outputs | Noninverting TTL-compatible outputs; high-impedance when either OE1 or OE2 is low. |
| 22–24 (GND, GND, GND) | Ground Terminals | Three dedicated ground pins reduce ground inductance and improve noise immunity at high speed. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-rail supply support | Independent VCC (5 V) and VEE (–5.2 V) rails eliminate need for external level shifters in mixed-domain systems. |
| Flow-through pin architecture | Input pins (1–10) on left, outputs (14–21) on right, and power/ground centered (11–13, 22–24) simplify layer routing and reduce stub length. |
| ANDed dual enable logic | OE1 (ECL) and OE2 (TTL) are logically ANDed - enables seamless integration into systems with either ECL or TTL control buses. |
| Low-output-capacitance design | 7 pF typical Co minimizes loading on driven TTL gates and preserves edge integrity up to ~100 MHz toggle rates. |
| Centered VCC/VEE/GND configuration | Reduces simultaneous switching noise by balancing return current paths and lowering ground loop inductance. |
Applications
| Memory Address Drivers | Clock Distribution Networks |
|---|---|
Use Scenario: Driving address bus lines from ECL-based CPU core to TTL-compatible memory arrays in legacy minicomputer systems. IC Role / Device Role / Timing Role: Translates 10KH ECL address outputs to TTL-compatible levels while maintaining sub-5 ns propagation delay and precise skew control. Use Value: Enables direct interface without discrete resistor networks or additional buffer stages, reducing board area and signal path jitter. |
Use Scenario: Distributing synchronized clock signals from an ECL oscillator to multiple TTL-based peripheral controllers in industrial control backplanes. IC Role / Device Role / Timing Role: Acts as a low-skew, 3-state clock fanout buffer with independent ECL/TTL enable control for dynamic clock gating. Use Value: Supports hot-swappable module enable/disable via OE2 (TTL) while preserving ECL timing integrity across all eight outputs. |
| Bus Transceivers | High-Speed Data Receivers |
Use Scenario: Bidirectional data bus arbitration in hybrid ECL/TTL backplane architectures where master and slave devices operate at different logic families. IC Role / Device Role / Timing Role: Provides unidirectional translation path (ECL→TTL) with 3-state outputs allowing shared-bus contention management. Use Value: Eliminates need for separate direction-control logic; OE1/OE2 AND function ensures deterministic bus release timing. |
Use Scenario: Receiving high-speed serial command streams from ECL-level communication links (e.g., legacy MIL-STD-101) into TTL-based protocol decoders. IC Role / Device Role / Timing Role: Converts incoming ECL data pulses to TTL logic levels with guaranteed 1.1 ns minimum disable time (tPLZ) for clean sampling windows. Use Value: Delivers deterministic setup/hold margins for downstream flip-flops operating at >80 MHz due to tight propagation delay matching across all eight channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ECL-to-TTL translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN10KHT5540DWR | Octal inverting ECL-to-TTL translator; identical pinout and supply specs but inverted logic polarity. | Requires complementary OE logic or upstream inversion for same functional behavior; unsuitable where noninverting path is mandatory. | Select only if system-level logic inversion is acceptable or already compensated elsewhere in signal chain. |
| MC100ELT20DG | Quad ECL-to-TTL translator with 3.3 V TTL compatibility; smaller 16-pin SOIC package; no dual OE inputs. | Limited to four channels; single TTL-compatible enable only; lacks ECL-side enable (OE1) and flow-through layout optimization. | Prefer for space-constrained designs needing fewer channels and 3.3 V TTL compatibility; not drop-in for SN10KHT5541DWRG4's 8-channel, dual-enable use case. |
Compared with SN10KHT5541DWRG4, SN10KHT5540DWR provides identical timing and packaging but inverted outputs - requiring redesign of downstream logic polarity - while MC100ELT20DG offers modern 3.3 V compatibility and smaller footprint at the cost of channel count, dual-enable flexibility, and flow-through layout advantage.
Availability
SN10KHT5541DWRG4 is available at Aetrix Electronics and suitable for legacy computing upgrades, industrial backplane refurbishment, and high-reliability ECL/TTL interface modules requiring stable component supply and long-term obsolescence mitigation.
Supply support for SN10KHT5541DWRG4 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 U.S.-based semiconductor company founded in 1930, specializing in analog, embedded processing, and logic solutions with broad industrial and aerospace heritage.
The SN10KHT5541DWRG4 belongs to TI's 10KH ECL translator product line, engineered specifically for high-speed, low-skew signal bridging in mixed-logic-domain computing and communications infrastructure from the late 1980s onward.
FAQ
What logic families does the SN10KHT5541DWRG4 interface between?
The SN10KHT5541DWRG4 interfaces between 10KH ECL logic (input side) and standard 5 V TTL logic (output side). Its ECL inputs accept –5.2 V referenced signals with VIH/VIL thresholds of –810 mV/–1480 mV (at 25°C), while its TTL outputs drive standard 74LS/74ALS loads with VOH ≥ 2.4 V and VOL ≤ 0.55 V under load. The SN10KHT5541DWRG4 does not support CMOS or 3.3 V logic families natively.
Does the SN10KHT5541DWRG4 require external pull-up or pull-down resistors?
No, the SN10KHT5541DWRG4 does not require external pull-up or pull-down resistors on its ECL inputs (A1–A8, OE1) or TTL outputs (Y1–Y8). Its ECL inputs are internally biased and terminated to VEE; TTL outputs meet standard VIH/VIL thresholds without external components. However, VCC and VEE must each be decoupled with ≥0.1 µF ceramic capacitors placed within 5 mm of pins 11 and 13 respectively. The SN10KHT5541DWRG4 is designed for self-contained operation in properly decoupled systems.
What is the function of the two enable inputs OE1 and OE2 on the SN10KHT5541DWRG4?
OE1 and OE2 are ANDed together to control the 3-state output drivers of the SN10KHT5541DWRG4. OE1 is ECL-compatible (–1.13 V typical VIH), allowing direct connection to ECL control buses; OE2 is TTL-compatible (2.0 V VIH), enabling interface with TTL microcontrollers or FPGAs. Both must be high for outputs to be active; if either is low, all Y1–Y8 outputs enter high-impedance state. This dual-enable architecture eliminates need for external level translators in mixed-domain enable signaling. The SN10KHT5541DWRG4 thus supports flexible system-level control without added components.
Can the SN10KHT5541DWRG4 operate outside the 0°C to 75°C temperature range?
No, the SN10KHT5541DWRG4 is characterized and specified only for operation from 0°C to 75°C. Its electrical parameters - including propagation delays, output drive strength, and input thresholds - are guaranteed only within this range. Operation below 0°C may cause increased propagation delay and reduced noise margin; above 75°C risks parametric drift and accelerated aging. TI does not qualify the SN10KHT5541DWRG4 for extended temperature grades. For wider-range applications, alternative solutions must be evaluated separately. The SN10KHT5541DWRG4 is intended for commercial/industrial computing environments only.
What package type and compliance status does the SN10KHT5541DWRG4 have?
The SN10KHT5541DWRG4 is supplied in a 24-pin SOIC (DW) package, 300-mil width, with NiPdAu lead finish and RoHS-compliant green (low-halogen) construction. It carries JEDEC MSL Level-1 rating (unlimited floor life at ≤30°C/60% RH), making it suitable for standard reflow assembly without dry-pack requirements. The "G4" suffix denotes TI's green packaging standard per JS709B. The SN10KHT5541DWRG4 meets EU RoHS Directive 2011/65/EU and is exempt from lead-free soldering restrictions due to its legacy high-reliability application scope.
SN10KHT5541DWRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Translator Type:
- Mixed Signal
- Channel Type:
- Unidirectional
- Number of Circuits:
- 1
- Channels per Circuit:
- 8
- Voltage - VCCA:
- -
- Voltage - VCCB:
- -
- Input Signal:
- ECL
- Output Signal:
- TTL
- Output Type:
- Tri-State, Non-Inverted
- Data Rate:
- -
- Operating Temperature:
- 0°C ~ 75°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-SOIC (0.295", 7.50mm Width)
SN10KHT5541DWRG4 FAQ
1.How can I place an order for SN10KHT5541DWRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for SN10KHT5541DWRG4 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 SN10KHT5541DWRG4 reliable?
The price and inventory of SN10KHT5541DWRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN10KHT5541DWRG4 is usually 5 days.
3.What payment methods are accepted for SN10KHT5541DWRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN10KHT5541DWRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN10KHT5541DWRG4?
SN10KHT5541DWRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN10KHT5541DWRG4 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 SN10KHT5541DWRG4?
For technical support, including SN10KHT5541DWRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN10KHT5541DWRG4 requirements.
6.How does Aetrix verify that SN10KHT5541DWRG4 is sourced from the original manufacturer or authorized distributors?
All SN10KHT5541DWRG4 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 SN10KHT5541DWRG4 meets industry standards.
7.What is the process for return or replacement of SN10KHT5541DWRG4?
All SN10KHT5541DWRG4 units undergo pre-shipment inspection (PSI). If there is an issue with SN10KHT5541DWRG4, 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 SN10KHT5541DWRG4 part is unused and in its original packaging.
Return procedure for SN10KHT5541DWRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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