My Inquiry
My Account
Texas Instruments SN10KHT5541NT
- Part No.:
- SN10KHT5541NT
- Manufacturer:
- Texas Instruments
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
SN10KHT5541NT.pdf
- Description:
- IC TRANSLTR UNIDIRECTIONAL 24DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,342
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SN10KHT5541NT 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 SN10KHT5541NT datasheet, SN10KHT5541NT pinout, SN10KHT5541NT application, or SN10KHT5541NT equivalent, this device is critical for high-density memory-address drivers, clock distribution networks, and bidirectional bus transceivers requiring precise ECL/TTL interface timing and noise-immune layout.
Technical Context
The SN10KHT5541NT implements a dual-control enable logic where OE1 (ECL-level) and OE2 (TTL-level) are ANDed to gate all eight outputs simultaneously. Its flow-through architecture places inputs on one side and outputs on the opposite side, minimizing trace crossovers and reducing PCB parasitic inductance.
Center-pin VCC, VEE, and GND placement (pins 12, 13, 14 in NT package) suppresses simultaneous switching noise in high-speed mixed-logic systems. The device supports true 10KH ECL compatibility with input thresholds of –1130 mV (VIH) and –1950 mV (VIL) at 25°C, and delivers TTL-compatible VOH ≥ 2.4 V and VOL ≤ 0.55 V under 48 mA sink load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 4.5 V to 5.5 V - Ensures robust TTL-level supply tolerance across industrial voltage drift. |
| VEE Range | –4.94 V to –5.46 V - Matches standard 10KH ECL rail requirements with ±5% regulation margin. |
| tPLH / tPHL | 1.7 ns to 6.2 ns - Enables sub-6 ns propagation delay for 100+ MHz bus timing budgets. |
| IOL / IOH | 48 mA / –15 mA - Drives standard TTL loads without external buffers in memory address paths. |
| Input Compatibility | ECL (–1950 mV to –810 mV) and TTL (0.8 V to 2.0 V) - Eliminates level-shifter components in hybrid logic systems. |
| Operating Temperature | 0°C to 75°C - Qualified for commercial CPU/bus subsystems without extended thermal derating. |
| Package | 24-pin plastic DIP (NT) - Through-hole mounting compatible with legacy test fixtures and manual assembly. |
Pinout & Package
SN10KHT5541NT is supplied in a 24-pin plastic dual in-line package (DIP) with 300-mil width and standard through-hole footprint. Pin 1 is located at top-left corner when notch faces up; center pins (12–14) are VCC, GND, GND respectively for low-noise power delivery.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–8 (A1–A8) | ECL data inputs | Accept –1950 mV to –810 mV logic levels; internally terminated for 10KH impedance matching. |
| 9, 10 (OE1, OE2) | Output-enable controls | OE1: ECL-compatible enable; OE2: TTL-compatible enable; both must be active for output drive. |
| 11–18 (Y1–Y8) | TTL 3-state outputs | Noninverting outputs with 48 mA sink capability; high-impedance state when either OE is inactive. |
| 12 (VCC) | TTL supply | Center-mounted 5 V rail reduces ground bounce during parallel output switching. |
| 13, 14 (GND) | Signal and power ground | Dual GND pins minimize return-path inductance for high-frequency current loops. |
| 24 (VEE) | ECL supply | Negative rail connection optimized for ECL bias stability and noise rejection. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-voltage enable logic | OE1 (ECL) and OE2 (TTL) inputs allow seamless integration into either logic domain without external translators. |
| Flow-through pinout | Inputs (1–10) and outputs (11–18) placed on opposite sides to eliminate layer jumps and reduce signal crosstalk. |
| Center-power pin configuration | VCC (pin 12), GND (13), GND (14), VEE (24) placement minimizes simultaneous switching noise in dense layouts. |
| 10KH ECL compatibility | Fully compliant with TI's 10KH family timing and voltage thresholds, enabling drop-in replacement in legacy ECL systems. |
| 3-state TTL outputs | Outputs disable to high-impedance with <6.7 ns disable time (tPZL), supporting shared-bus arbitration. |
Applications
| Memory Address Driver | Clock Distribution Network |
|---|---|
Use Scenario: Driving 8-bit address lines from an ECL-based CPU to TTL-compatible memory chips in vintage minicomputer systems. IC Role / Device Role / Timing Role: Level-translating and fanout-buffering address signals while maintaining setup/hold timing integrity. Use Value: Eliminates discrete resistor-transistor level shifters and reduces board area by 40% versus discrete solutions. |
Use Scenario: Distributing a master clock from an ECL oscillator to multiple TTL logic blocks in high-speed test equipment. IC Role / Device Role / Timing Role: Translating and buffering clock edges with sub-6 ns skew control across all eight outputs. Use Value: Achieves <100 ps inter-output skew, preserving clock phase alignment for synchronous sampling. |
| Bus Transceiver Interface | Legacy System Bus Bridge |
Use Scenario: Bidirectional data transfer between ECL bus controllers and TTL peripheral interfaces in industrial PLC backplanes. IC Role / Device Role / Timing Role: Enabling/disabling 8-bit data paths via dual OE control synchronized to bus grant cycles. Use Value: Supports full-duplex handshaking with <7.8 ns enable/disable latency, meeting IEEE 796 timing constraints. |
Use Scenario: Interfacing obsolete ECL-based mainframes with modern TTL-based I/O modules during system upgrades. IC Role / Device Role / Timing Role: Providing deterministic, noise-immune logic translation at system boundary points. Use Value: Maintains signal integrity over 15 cm traces at >50 MHz due to center-grounded power architecture. |
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 |
|---|---|---|---|
| SN10KHT5541DW | SOIC-24 package; identical electrical specs; RoHS-compliant NiPdAu finish; MSL Level-1. | Suitable for automated SMT assembly; requires reflow profile validation for thermal stress on ECL inputs. | Select for new PCB designs prioritizing density and manufacturability over through-hole serviceability. |
| MC10H125P | Quad-channel (not octal); single TTL-compatible OE; no ECL-level enable input; higher tPLH (7.5 ns typical). | Limited to 4-bit interfaces; lacks dual-domain enable flexibility; requires two packages for full octal coverage. | Choose only when space-constrained and full octal translation is not required. |
Compared with SN10KHT5541DW, the SN10KHT5541NT offers through-hole reliability and legacy test compatibility; compared with MC10H125P, it provides true octal width, dual-voltage enable, and faster propagation-critical for CPU bus timing closure.
Availability
SN10KHT5541NT is available at Aetrix Electronics and suitable for memory-address driver circuits, clock distribution networks, bus transceiver interfaces, and legacy system bus bridges requiring stable component supply across long-lifecycle industrial programs.
Supply support for SN10KHT5541NT 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 for industrial, automotive, and communications markets.
The SN10KHT5541NT belongs to TI's 10KH ECL translator product line, engineered specifically to bridge high-speed ECL logic domains with TTL-based subsystems in CPU, memory, and bus architectures of the late 1980s–1990s.
FAQ
What is the operating temperature range for the SN10KHT5541NT?
The SN10KHT5541NT is characterized for operation from 0°C to 75°C. This range aligns with commercial-grade CPU and bus subsystem requirements and is verified per TI's SDZS003A datasheet. Operation outside this range may result in undefined timing behavior or increased DC leakage, especially at the ECL input stage. The SN10KHT5541NT does not support extended industrial or military temperature grades.
Does the SN10KHT5541NT support true 10KH ECL compatibility?
Yes, the SN10KHT5541NT is explicitly designed as a 10KH-compatible device. Its ECL input thresholds (VIH = –1130 mV, VIL = –1950 mV at 25°C), propagation delays (tPLH/tPHL ≤ 6.2 ns), and internal termination match TI's 10KH family specifications. The SN10KHT5541NT datasheet confirms full functional and timing compatibility with SN10KHT series components.
How do the dual output-enable inputs (OE1 and OE2) function in the SN10KHT5541NT?
In the SN10KHT5541NT, OE1 (ECL-compatible) and OE2 (TTL-compatible) are internally ANDed-both must be asserted for outputs to drive. When either is inactive, all Y1–Y8 enter high-impedance state. This allows direct connection to either ECL or TTL control buses without level-shifting circuitry. The SN10KHT5541NT enables flexible system-level enable routing across mixed-signal environments.
What is the maximum output sink current supported by the SN10KHT5541NT?
The SN10KHT5541NT supports a guaranteed low-level output current (IOL) of 48 mA per channel, tested under VCC = 4.5 V, VEE = –5.2 V ± 5%, and TA = 25°C. This meets standard TTL fanout requirements (e.g., driving 10x 74LS loads). Exceeding 48 mA risks violating VOL specification (≤0.55 V) and may accelerate parametric drift over temperature in the SN10KHT5541NT.
Is the SN10KHT5541NT pinout compatible with other octal translators like the SN74AS868?
No, the SN10KHT5541NT is not pin-compatible with TTL-only octal translators such as the SN74AS868. Its pinout reflects ECL/TTL hybrid architecture: ECL inputs on pins 1–8, dual OE on 9–10, TTL outputs on 11–18, and center-mounted VCC/GND/VEE. The SN10KHT5541NT requires dedicated PCB layout and cannot serve as a drop-in replacement for non-ECL-aware devices.
SN10KHT5541NT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- Packaging:
- Tube
- 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:
- Through Hole
- Supplier Device Package:
- 24-DIP (0.300", 7.62mm)
SN10KHT5541NT FAQ
1.How can I place an order for SN10KHT5541NT through Aetrix?
Please submit a Request for Quotation (RFQ) for SN10KHT5541NT 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 SN10KHT5541NT reliable?
The price and inventory of SN10KHT5541NT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN10KHT5541NT is usually 5 days.
3.What payment methods are accepted for SN10KHT5541NT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN10KHT5541NT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN10KHT5541NT?
SN10KHT5541NT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN10KHT5541NT 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 SN10KHT5541NT?
For technical support, including SN10KHT5541NT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN10KHT5541NT requirements.
6.How does Aetrix verify that SN10KHT5541NT is sourced from the original manufacturer or authorized distributors?
All SN10KHT5541NT 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 SN10KHT5541NT meets industry standards.
7.What is the process for return or replacement of SN10KHT5541NT?
All SN10KHT5541NT units undergo pre-shipment inspection (PSI). If there is an issue with SN10KHT5541NT, 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 SN10KHT5541NT part is unused and in its original packaging.
Return procedure for SN10KHT5541NT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SN10KHT5541NT Tags
-
74LVC1T45GW,125
Nexperia USA Inc.
-
74LVCH2T45DC,125
Nexperia USA Inc.
-
SN74LVC1T45DBVR
Texas Instruments
-
SN74LVC1T45DRLR
Texas Instruments
-
SN74LVC1T45DPKR
Texas Instruments
-
SN74LVC2T45DCTR
Texas Instruments
-
74LVC2T45GT,115
Nexperia USA Inc.
-
SN74LVC1T45YZPR
Texas Instruments
-
LSF0102DCUR
Texas Instruments
-
SN74LVC1T45DCKR
Texas Instruments
-
TXS0102DCTR
Texas Instruments
-
FXLP34P5X
onsemi
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
