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Texas Instruments SN10KHT5541DWR
- Part No.:
- SN10KHT5541DWR
- Manufacturer:
- Texas Instruments
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
SN10KHT5541DWR.pdf
- Description:
- IC TRANSLATOR UNIDIR 24SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,357
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Product details
Overview
SN10KHT5541DWR 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), flow-through pin architecture, and operates from 0°C to 75°C with VCC = 4.5–5.5 V and VEE = –4.94 to –5.46 V.
For engineers reviewing the SN10KHT5541DWR datasheet, SN10KHT5541DWR pinout, SN10KHT5541DWR application, or SN10KHT5541DWR equivalent, key selection criteria include ECL/TTL dual-control enable logic, 4.0 ns typical propagation delay (tPLH/tPHL), 3.3 V VOH min at –15 mA, 0.55 V VOL max at 48 mA, and SOIC-24 package compatibility with high-speed bus interface layouts.
Technical Context
This device implements a dedicated logic-level translation function using discrete ECL input stages and TTL-compatible output drivers, with ANDed OE1 (ECL) and OE2 (TTL) enabling independent control from either logic family. Its flow-through architecture places inputs on one side and outputs on the opposite side to minimize trace crossovers.
The SN10KHT5541DWR uses center-pin VCC, VEE, and GND configuration (pins 12, 13, 14) to reduce high-speed switching noise. It supports simultaneous operation under mixed-supply conditions: TTL-side VCC = 5 V ±10%, ECL-side VEE = –5.2 V ±5%, with guaranteed VIH/VIL thresholds for both input types across temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 4.5 V to 5.5 V - Ensures compatibility with standard TTL power rails and margin for ripple/noise in bus driver applications. |
| VEE Range | –4.94 V to –5.46 V - Matches 10KH ECL supply tolerance and enables direct connection to ECL system backplanes. |
| tPLH / tPHL | 1.7 ns (min) to 6.2 ns (max) - Enables sub-100 MHz bus timing margins in memory-address and clock distribution paths. |
| VOH / VOL | ≥2.4 V (IOH = –3 mA), ≤0.55 V (IOL = 48 mA) - Meets TTL VIH/VIL thresholds with drive strength sufficient for fanout of ≥10 standard TTL loads. |
| Input Compatibility | OE1 accepts –1170 mV to –735 mV (ECL), OE2 accepts 2 V VIH / 0.8 V VIL (TTL) - Allows seamless integration into hybrid logic systems without level-shifting circuitry. |
| ICCZ (3-State) | 77–116 mA - Represents quiescent current during output disable, critical for thermal management in dense PCB layouts. |
Pinout & Package
SN10KHT5541DWR is housed in a 24-pin SOIC (DW) package with 300-mil width, RoHS-compliant NIPDAU finish, and moisture sensitivity level (MSL) 1 (unlimited floor life). Pin 12 = VCC, Pin 13 = GND, Pin 14 = VEE - center-aligned power/ground pins suppress simultaneous switching noise.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–8, 21–24 | Data Inputs (A1–A8) | ECL-compatible inputs accepting –1950 mV to –735 mV logic levels; directly driven from 10KH ECL sources. |
| 9, 10 | Output Enables (OE1, OE2) | OE1: ECL-compatible control; OE2: TTL-compatible control; outputs active only when both are asserted (AND logic). |
| 11, 15–20 | Outputs (Y1–Y8) | Noninverting TTL outputs with 3-state capability; sink up to 48 mA, source –15 mA; compatible with standard TTL loads. |
| 12 | VCC | +5 V TTL supply rail; center-pin placement minimizes power delivery loop inductance. |
| 13 | GND | Common reference for TTL and ECL sides; shared ground plane reduces inter-family noise coupling. |
| 14 | VEE | –5.2 V ECL supply rail; center-pin placement ensures stable bias for ECL input stages. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-logic enable inputs | OE1 (ECL) and OE2 (TTL) are ANDed - eliminates need for external logic to gate outputs from either domain. |
| Flow-through pin architecture | Inputs on left (pins 1–10), outputs on right (pins 11, 15–20), power/ground centered (12–14) - reduces PCB trace length and layer count in bus routing. |
| Center-pin VCC/VEE/GND | Minimizes simultaneous switching noise by shortening return paths for both logic families - improves signal integrity in high-density backplane interfaces. |
| 10KH ECL compatibility | Fully compatible with TI's 10KH ECL family voltage thresholds and timing - enables drop-in replacement in legacy ECL/TTL hybrid systems. |
Applications
| Memory Address Drivers | Clock Distribution |
|---|---|
|
Use Scenario: Driving address lines from an ECL-based CPU to TTL-compatible memory arrays in industrial control systems. IC Role / Device Role / Timing Role: Level translator ensuring setup/hold timing compliance between ECL address generation and TTL memory access cycles. Use Value: 4.0 ns typical propagation delay preserves timing margins; 3-state outputs allow shared bus arbitration without contention. |
Use Scenario: Distributing a high-speed clock from an ECL oscillator to multiple TTL logic blocks in test equipment. IC Role / Device Role / Timing Role: Fanout buffer translating ECL clock edges to TTL-compatible swing while maintaining edge fidelity. Use Value: Low skew (≤0.5 ns between Y1–Y8) and 0.7 ns input rise time support ensures <1% jitter accumulation across 8 outputs. |
| Bus Transceivers | Backplane Interface |
|
Use Scenario: Bidirectional data translation on a mixed-logic backplane where ECL processors communicate with TTL peripherals. IC Role / Device Role / Timing Role: Unidirectional translator used in pairs (input + output direction) to isolate logic domains and prevent ground bounce coupling. Use Value: Independent OE1/OE2 control allows synchronized enable/disable across multiple SN10KHT5541DWR devices for glitch-free bus handshaking. |
Use Scenario: Interfacing legacy ECL subsystems (e.g., radar signal processors) to modern TTL-based I/O modules in avionics racks. IC Role / Device Role / Timing Role: Signal integrity-preserving bridge that maintains noise immunity via differential ECL input thresholds and robust TTL output drive. Use Value: –1950 mV ECL VIL and 48 mA IOL ensure reliable operation in electrically noisy rack environments with long cable runs. |
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 | Same pinout and electrical specs, but lacks OE2 TTL-compatible input - OE1 only (ECL-only enable). | Requires external TTL-to-ECL conversion for enable control in mixed-signal systems. | Select when only ECL-side enable is needed and board space is constrained. |
| MC100ELT24DTG | ECL-to-CMOS/TTL translator with 3.3 V/5 V outputs; 2.8 ns max tPD; different pinout (16-pin TSSOP). | Supports lower-voltage TTL/CMOS loads but requires PCB redesign and level-shifted OE signals. | Select for new designs targeting lower power or higher speed, accepting layout changes. |
Compared with SN10KHT5540DWR and MC100ELT24DTG, the SN10KHT5541DWR uniquely provides dual-domain enable control in a legacy-compatible SOIC-24 package, making it irreplaceable in field-upgraded systems requiring zero-layout-change integration of TTL peripherals into existing ECL infrastructure.
Availability
SN10KHT5541DWR is available at Aetrix Electronics and suitable for memory address drivers, clock distribution networks, bus transceivers, and backplane interfaces requiring stable component supply across extended industrial temperature ranges and long-lifecycle programs.
Supply support for SN10KHT5541DWR 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 for industrial, automotive, and communications markets.
The SN10KHT5541DWR belongs to TI's legacy 10KH logic family, engineered specifically to bridge high-speed ECL systems with mainstream TTL infrastructure in CPU, memory, and bus applications from the late 1980s onward.
FAQ
What is the operating temperature range for the SN10KHT5541DWR?
The SN10KHT5541DWR is characterized for operation from 0°C to 75°C, matching industrial-grade requirements for embedded computing and instrumentation systems. This range is verified per the SDZS003A datasheet revision dated October 1990 and applies to all electrical specifications including propagation delay, VOH/VOL, and input thresholds. The device is not rated for extended temperature operation beyond this range.
Does the SN10KHT5541DWR support true bidirectional translation?
No, the SN10KHT5541DWR is a unidirectional ECL-to-TTL translator only: inputs A1–A8 accept ECL signals, and outputs Y1–Y8 deliver TTL-compatible levels. It does not support reverse TTL-to-ECL translation. For bidirectional interfacing, two SN10KHT5541DWR devices must be used in opposing directions with separate enable control, as confirmed by the logic diagram and function table in the official datasheet.
What are the absolute maximum ratings for VEE and VCC on the SN10KHT5541DWR?
The SN10KHT5541DWR has absolute maximum ratings of –8 V to 0 V for VEE and –0.5 V to 7 V for VCC. Exceeding these limits may cause permanent damage. These values are stress ratings only; functional operation is guaranteed only within the recommended operating conditions: VEE = –4.94 V to –5.46 V and VCC = 4.5 V to 5.5 V, as specified in the SDZS003A datasheet.
Can OE1 and OE2 be used independently on the SN10KHT5541DWR?
No - OE1 and OE2 are internally ANDed; both must be asserted (OE1 low for ECL, OE2 high for TTL) to enable outputs. The function table explicitly states "X" (don't care) only when the other enable is inactive, confirming logical AND behavior. Using only one enable active disables all outputs, as verified in the truth table and logic diagram of the SN10KHT5541DWR datasheet.
Is the SN10KHT5541DWR pin-compatible with other 10KH translators like the SN10KHT5540?
Yes, the SN10KHT5541DWR is pin-compatible with the SN10KHT5540DWR in the SOIC-24 (DW) package: identical pin assignments for A1–A8, Y1–Y8, OE1, VCC, GND, and VEE. However, SN10KHT5540 lacks OE2, so its pin 10 is NC (no connect), whereas SN10KHT5541DWR uses pin 10 as OE2 (TTL-compatible). Board reuse requires verifying OE2 connection and logic level sourcing.
SN10KHT5541DWR 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)
SN10KHT5541DWR FAQ
1.How can I place an order for SN10KHT5541DWR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN10KHT5541DWR 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 SN10KHT5541DWR reliable?
The price and inventory of SN10KHT5541DWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN10KHT5541DWR is usually 5 days.
3.What payment methods are accepted for SN10KHT5541DWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN10KHT5541DWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN10KHT5541DWR?
SN10KHT5541DWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN10KHT5541DWR 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 SN10KHT5541DWR?
For technical support, including SN10KHT5541DWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN10KHT5541DWR requirements.
6.How does Aetrix verify that SN10KHT5541DWR is sourced from the original manufacturer or authorized distributors?
All SN10KHT5541DWR 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 SN10KHT5541DWR meets industry standards.
7.What is the process for return or replacement of SN10KHT5541DWR?
All SN10KHT5541DWR units undergo pre-shipment inspection (PSI). If there is an issue with SN10KHT5541DWR, 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 SN10KHT5541DWR part is unused and in its original packaging.
Return procedure for SN10KHT5541DWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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