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Texas Instruments SN10KHT5541DW
- Part No.:
- SN10KHT5541DW
- Manufacturer:
- Texas Instruments
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
SN10KHT5541DW.pdf
- Description:
- IC TRANSLATOR UNIDIR 24SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,840
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Product details
Overview
SN10KHT5541DW from Texas Instruments is an octal ECL-to-TTL translator IC with noninverting 3-state outputs, designed for CPU/bus-oriented signal translation between 10KH ECL and TTL logic families. It features dual output-enable inputs (OE1 ECL-compatible, OE2 TTL-compatible), operates from 0°C to 75°C, supports VCC = 4.5–5.5 V and VEE = –4.94 to –5.46 V, and delivers propagation delays as low as 1.1 ns (tPLZ) in high-speed bus applications.
For engineers reviewing the SN10KHT5541DW datasheet, SN10KHT5541DW pinout, SN10KHT5541DW application, or SN10KHT5541DW equivalent, this device is critical for legacy ECL/TTL interface design where flow-through architecture, center-pin power/ground layout, and mixed-signal enable control are required to minimize switching noise and optimize PCB routing.
Technical Context
The SN10KHT5541DW implements a dual-rail translation architecture with separate ECL and TTL input thresholds: OE1 accepts ECL-level signals (VIH = –810 mV typ at 25°C), while OE2 accepts standard TTL inputs (VIH = 2 V min). Its internal logic ANDs both enables, allowing flexible system-level control from either logic family without external gating.
It uses a flow-through pinout (A1–A8 on left, Y1–Y8 on right, OE1/OE2 centrally located) and center-pin VCC/GND/VEE configuration to reduce ground bounce and supply coupling. The device draws ICCZ = 77–116 mA in 3-state mode and supports 48 mA sink current per output, enabling direct drive of TTL loads without buffers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 4.5 V to 5.5 V - ensures compatibility with standard TTL supply rails and margin for ripple/noise. |
| VEE Range | –4.94 V to –5.46 V - matches 10KH ECL supply requirements and guarantees correct ECL input threshold operation. |
| tPLZ / tPHZ (max) | 6.3 ns / 6.4 ns - defines worst-case enable-to-output transition time for timing-critical bus arbitration and clock distribution. |
| IOL (min) | 48 mA - supports direct fanout to multiple standard TTL inputs (≥10 LS-TTL loads) without external drivers. |
| Operating Temp | 0°C to 75°C - qualified for commercial-grade industrial control and legacy computing systems, not extended temp. |
| Input Capacitance | Ci = 5 pF - minimizes loading on high-speed ECL data lines, preserving edge integrity up to ~100 MHz. |
| Output Disable Current | IOZL = –50 µA - ensures high-impedance state leakage remains negligible during 3-state hold, preventing bus contention. |
Pinout & Package
SN10KHT5541DW is housed in a 24-pin SOIC (Small Outline Integrated Circuit) package (DW drawing), with 300-mil width, RoHS-compliant NIPDAU finish, and moisture sensitivity level (MSL) Level-1 (unlimited floor life).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8 | A1–A8 (ECL/TTL Data Inputs) | Accepts ECL-level inputs (–1950 mV to –810 mV); TTL-compatible when driven by 0.8 V/2 V thresholds. |
| 9, 10 | OE1 (ECL Enable), OE2 (TTL Enable) | AND-gated enable control: OE1 accepts ECL logic; OE2 accepts TTL logic - enables hybrid-system integration. |
| 11–18 | Y1–Y8 (Noninverting TTL Outputs) | 3-state TTL outputs with VOH ≥ 2.4 V (IOL = 48 mA), VOL ≤ 0.55 V - drives standard TTL loads directly. |
| 19, 20, 21 | GND, GND, GND | Three dedicated ground pins minimize ground impedance and reduce simultaneous switching noise (SSN). |
| 22 | VCC | +5 V TTL supply rail - center-placed to balance power delivery across the die. |
| 23 | VEE | –5.2 V ECL supply rail - center-placed adjacent to VCC and GND for optimal decoupling and noise rejection. |
| 24 | GND | Fourth ground pin - completes symmetric power/ground pin arrangement for high-frequency stability. |
Key Features
| Feature | Design Value |
|---|---|
| Flow-through architecture | Input (A1–A8) and output (Y1–Y8) pins placed on opposite sides - enables straight PCB trace routing, reducing crosstalk and stub length. |
| Center-pin VCC/VEE/GND | Three adjacent power/ground pins at package center - lowers loop inductance and suppresses high-speed switching noise in dense layouts. |
| Dual-mode output enable | OE1 (ECL) and OE2 (TTL) inputs internally ANDed - eliminates need for external level-shifting logic when interfacing mixed-signal subsystems. |
| 10KH ECL compatibility | Fully compatible with TI's 10KH ECL family - meets VIH/VIL thresholds and drive strength specs for seamless integration into legacy ECL buses. |
| Noninverting translation | Preserves signal polarity across translation - simplifies timing analysis and eliminates need for inverters in address/data paths. |
Applications
| Memory Address Drivers | Clock Distribution Networks |
|---|---|
Use Scenario: Driving TTL-based memory address latches from a 10KH ECL CPU address bus in vintage workstations or embedded controllers. IC Role / Device Role / Timing Role: Translates ECL address bits to TTL-compatible levels while maintaining sub-7 ns enable/disable timing for synchronous latch strobing. Use Value: Eliminates discrete resistor-transistor level shifters, reduces board area by 40%, and maintains setup/hold margins under 5 ns jitter. |
Use Scenario: Distributing a centralized ECL clock to multiple TTL clock inputs in a multi-board backplane system. IC Role / Device Role / Timing Role: Buffers and translates ECL clock edges to TTL logic levels with matched propagation delay across all eight outputs. Use Value: Ensures <±0.5 ns skew between Y1–Y8 outputs, enabling deterministic timing across distributed TTL logic domains. |
| Bus-Oriented Receivers | Bus-Oriented Transmitters |
Use Scenario: Receiving ECL data from a high-speed bus and presenting clean TTL signals to a microcontroller input port. IC Role / Device Role / Timing Role: Acts as a high-impedance receiver with 5 pF input capacitance, preserving ECL edge rate while converting to TTL voltage levels. Use Value: Prevents signal degradation on long ECL stubs and avoids false triggering due to undershoot beyond –1.2 V absolute max rating. |
Use Scenario: Transmitting TTL data from a microprocessor to an ECL bus via bidirectional translation using external direction control. IC Role / Device Role / Timing Role: Provides 3-state TTL outputs that can be disabled to isolate the bus, with fast disable time (tPLZ = 1.1 ns min) for glitch-free handshaking. Use Value: Enables zero-wait-state bus turnaround in shared-memory architectures by minimizing output disable latency. |
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 |
|---|---|---|---|
| SN10KHT5540DW | Octal ECL-to-TTL translator with inverting outputs (vs. noninverting SN10KHT5541DW); identical pinout, supply, and timing specs. | Requires logic inversion in downstream circuitry; unsuitable where signal polarity must be preserved (e.g., address buses). | Select SN10KHT5540DW only when system-level inversion is acceptable or already compensated elsewhere. |
| MC100ELT20DG | ECL-to-TTL translator with single-ended TTL outputs, 3.3 V tolerant inputs, and faster tPLH/tPHL (1.8 ns typ), but no dual-enable architecture. | Lacks OE1/OE2 AND-gating - requires external logic to combine ECL and TTL enables; not drop-in replaceable. | Choose MC100ELT20DG for new designs needing lower propagation delay and 3.3 V compatibility, but expect layout and logic changes. |
Compared with SN10KHT5540DW and MC100ELT20DG, the SN10KHT5541DW uniquely provides noninverting translation plus dual-rail enable control in a pin-compatible SOIC-24 package - making it irreplaceable in legacy systems requiring polarity fidelity and mixed-signal enable flexibility without redesign.
Availability
SN10KHT5541DW is available at Aetrix Electronics and suitable for memory address drivers, clock distribution networks, bus-oriented receivers, and bus-oriented transmitters requiring stable component supply for industrial retrofits and legacy system maintenance.
Supply support for SN10KHT5541DW 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 leader founded in 1930, specializing in analog, embedded processing, and logic solutions with deep heritage in high-speed interface ICs.
The SN10KHT5541DW belongs to TI's 10KH logic family, engineered specifically for high-density, low-noise ECL/TTL interface bridging in CPU, memory, and bus subsystems of 1980s–1990s computing platforms.
FAQ
What logic families does the SN10KHT5541DW interface between?
The SN10KHT5541DW interfaces between 10KH ECL and standard TTL logic families. Its inputs accept ECL-level signals (–1950 mV to –810 mV) and TTL-level signals (0.8 V to 2 V), while its outputs deliver TTL-compatible voltage levels (VOH ≥ 2.4 V, VOL ≤ 0.55 V) with 48 mA sink capability. This makes the SN10KHT5541DW ideal for bridging legacy ECL buses to TTL peripherals without external level-shifting components.
Does the SN10KHT5541DW support both ECL and TTL enable inputs simultaneously?
Yes - the SN10KHT5541DW features two independent output-enable inputs: OE1 (ECL-compatible) and OE2 (TTL-compatible). These are internally ANDed, allowing the device to be controlled from either logic family without external gates. This dual-enable architecture is explicitly confirmed in the function table and logic diagram of the SN10KHT5541DW datasheet, enabling flexible integration in mixed-signal systems.
What is the operating temperature range for the SN10KHT5541DW?
The SN10KHT5541DW is characterized for operation from 0°C to 75°C, as stated in the "Recommended Operating Conditions" section of its datasheet. This commercial-grade temperature range aligns with typical office and industrial control environments but excludes extended industrial (–40°C to 85°C) or automotive qualification. The SN10KHT5541DW is not rated for operation outside this specified range.
Is the SN10KHT5541DW pin-compatible with other devices in the same family?
Yes - the SN10KHT5541DW shares the same 24-pin SOIC (DW) package and pinout with the SN10KHT5540DW (inverting version), including identical placement of A1–A8, Y1–Y8, OE1, OE2, VCC, VEE, and GND pins. This allows direct substitution where signal inversion is acceptable, though functional behavior differs due to output polarity. No other family members deviate from this mechanical and electrical pin mapping.
What are the absolute maximum supply voltage ratings for the SN10KHT5541DW?
The SN10KHT5541DW has absolute maximum supply ratings of VCC = –0.5 V to 7 V and VEE = –8 V to 0 V. Exceeding these limits risks permanent damage. For reliable operation, TI specifies recommended ranges of VCC = 4.5–5.5 V and VEE = –4.94 to –5.46 V. These values are measured relative to GND and must be maintained concurrently - the SN10KHT5541DW requires both supplies to be active for proper ECL input recognition and TTL output drive.
SN10KHT5541DW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- Packaging:
- Bulk
- Product Status:
- Active
- 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)
SN10KHT5541DW FAQ
1.How can I place an order for SN10KHT5541DW through Aetrix?
Please submit a Request for Quotation (RFQ) for SN10KHT5541DW 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 SN10KHT5541DW reliable?
The price and inventory of SN10KHT5541DW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN10KHT5541DW is usually 5 days.
3.What payment methods are accepted for SN10KHT5541DW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN10KHT5541DW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN10KHT5541DW?
SN10KHT5541DW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN10KHT5541DW 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 SN10KHT5541DW?
For technical support, including SN10KHT5541DW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN10KHT5541DW requirements.
6.How does Aetrix verify that SN10KHT5541DW is sourced from the original manufacturer or authorized distributors?
All SN10KHT5541DW 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 SN10KHT5541DW meets industry standards.
7.What is the process for return or replacement of SN10KHT5541DW?
All SN10KHT5541DW units undergo pre-shipment inspection (PSI). If there is an issue with SN10KHT5541DW, 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 SN10KHT5541DW part is unused and in its original packaging.
Return procedure for SN10KHT5541DW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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