My Inquiry
My Account
onsemi 74LVT16244MTDX
- Part No.:
- 74LVT16244MTDX
- Manufacturer:
- onsemi
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74LVT16244MTDX.pdf
- Description:
- IC BUF NON-INVERT 3.6V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,575
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74LVT16244MTDX from Fairchild Semiconductor is a 16-bit non-inverting buffer/line driver with 3-STATE outputs, designed for memory and address bus driving, clock distribution, and TTL-level interfacing in 3.3V systems. It features nibble-wise (4-bit) output enable control, ±32 mA/±64 mA drive capability, and operates across 2.7–3.6 V supply with propagation delays as low as 1.2 ns at 3.3 V.
For engineers reviewing the 74LVT16244MTDX datasheet, pinout, applications, or equivalent options, key selection criteria include 3.3V-compatible 5V-tolerant I/O, independent 4-bit 3-STATE control, low dynamic noise (VOLP ≤ 0.8 V), and TSSOP-48 packaging for high-density board layouts.
Technical Context
The 74LVT16244MTDX implements sixteen independent non-inverting buffers grouped into four 4-bit sections, each controlled by a dedicated active-low OE pin (OE1–OE4). Its BiCMOS process enables ABT-class speed (tPLH/tPHL ≤ 3.9 ns) while maintaining low ICCZ (0.19 mA) in 3-STATE mode.
All inputs tolerate 0–5.5 V, enabling direct interfacing with 5V logic without level shifters; outputs drive ±32 mA (HIGH) and ±64 mA (LOW) into 500 Ω loads. Power-up/down high-impedance behavior prevents bus contention during hot insertion or supply sequencing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7 V to 3.6 V - Ensures stable operation in standard 3.3V systems with ±0.3V tolerance. |
| I/O Voltage Tolerance | 0 V to 5.5 V - Allows direct connection to 5V peripherals without external level translation. |
| Output Drive | 32 mA source / 64 mA sink - Supports heavy capacitive loads and multiple TTL inputs per output. |
| Propagation Delay | 1.2–3.9 ns (CL = 50 pF) - Enables reliable timing in high-speed address/data buses up to ~250 MHz. |
| 3-STATE Enable/Disable Time | tPZH ≤ 5.0 ns, tPHZ ≤ 5.2 ns - Minimizes bus turnaround latency in bidirectional data transfer protocols. |
| Input Capacitance | 4 pF - Reduces loading on upstream drivers and preserves signal integrity in fanout-critical paths. |
| Supply Current (3-STATE) | 0.19 mA - Low quiescent power supports battery-backed or energy-sensitive applications. |
Pinout & Package
74LVT16244MTDX is packaged in a 48-lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1 mm wide, with 0.5 mm lead pitch. Pin 1 is marked by a dot or beveled corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 | I0–I15 | 16 buffered data inputs - Accept 0–5.5 V signals; no bushold (unlike LVTH variant). |
| 17, 19, 21, 23 | OE1–OE4 | Active-low 4-bit output enable controls - Each enables one 4-bit nibble (O0–O3, O4–O7, etc.). |
| 18, 20, 22, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36 | O0–O15 | 16 non-inverting 3-STATE outputs - Drive 3.3V buses with TTL-compatible voltage levels. |
| 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48 | GND, VCC | 12 total power pins (6 GND + 6 VCC) - Distributed for low-noise operation and reduced ground bounce. |
Key Features
| Feature | Design Value |
|---|---|
| Nibble-controlled 3-STATE | Four independent OE inputs allow selective activation of 4-bit output groups - critical for partial bus isolation in multi-master systems. |
| 5V-tolerant I/O | Inputs accept 0–5.5 V; outputs drive 3.3V logic while sinking/sourcing TTL-level currents - eliminates need for discrete level shifters. |
| Hot-plug compatible | Power-up/down high-impedance ensures glitch-free insertion into live backplanes or hot-swap slots without bus contention. |
| Low dynamic noise | VOLP ≤ 0.8 V under switching load (CL = 50 pF) - reduces crosstalk and maintains signal margin in dense routing environments. |
| BiCMOS speed/power balance | ABT-equivalent propagation delay (≤3.9 ns) with ICCZ = 0.19 mA - delivers high-speed performance without excessive heat or supply ripple. |
Applications
| Memory Address Buffering | PCI/ISA Bus Transceiver Interface |
|---|---|
|
Use Scenario: Driving 16-bit address lines from a microcontroller to SRAM or Flash memory in embedded systems. IC Role / Device Role / Timing Role: Non-inverting buffer with 3-STATE control isolates CPU address bus during DMA cycles or peripheral access. Use Value: 1.2 ns min propagation delay ensures setup/hold timing margins at 33 MHz bus speeds; 5V-tolerant inputs interface directly with legacy memory devices. |
Use Scenario: Level-shifting and buffering between 3.3V host controller and 5V PCI add-in cards. IC Role / Device Role / Timing Role: Bidirectional bus driver enabling safe communication across mixed-voltage PCI segments. Use Value: Independent nibble enables selective gating of address/data sub-buses; ±64 mA sink supports legacy 5V TTL loads without external drivers. |
| Clock Distribution Network | Industrial PLC I/O Expansion |
|
Use Scenario: Fanout of a 3.3V system clock to multiple synchronous peripherals (ADCs, DACs, FPGAs). IC Role / Device Role / Timing Role: Low-skew (tOSHL ≤ 1.0 ns), low-capacitance (CIN = 4 pF) buffer minimizing clock jitter and loading. Use Value: Tight skew spec ensures phase alignment across 16 outputs; 3-STATE allows dynamic clock gating per subsystem. |
Use Scenario: Interfacing programmable logic controller (PLC) CPU modules with 5V-rated digital I/O expansion racks. IC Role / Device Role / Timing Role: Robust line driver providing ESD-hardened (HBM ≥ 2000 V), high-current (64 mA) signal conditioning. Use Value: Latch-up immunity (>500 mA) and industrial temperature range (–40°C to +85°C) ensure reliability in factory-floor environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit non-inverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC16244ADGGR | Lower drive (24 mA/24 mA), 1.65–3.6 V VCC, no 5V-tolerant inputs - requires external level shifters for 5V interfaces. | Suitable only in fully 3.3V-only systems; not drop-in for mixed-voltage designs. | Select when cost and ultra-low power (<1 µA ICC) outweigh drive strength and voltage flexibility. |
| 74LVTH16244MTD | Includes bushold inputs (eliminates pull-ups), identical pinout and specs otherwise - higher II(HOLD) = 75 µA required for state change. | Better for floating-input scenarios (e.g., unpopulated daughterboards); same TSSOP-48 package. | Choose when unused inputs may float and external pull-ups must be avoided - no PCB change needed. |
Compared with SN74LVC16244ADGGR and 74LVTH16244MTD, the 74LVT16244MTDX uniquely balances 5V-tolerant I/O, high drive strength, and industrial temperature support in a single TSSOP-48 package - making it optimal for legacy interface bridging where robustness and compatibility are prioritized over minimal quiescent current.
Availability
74LVT16244MTDX is available at Aetrix Electronics and suitable for memory subsystems, industrial bus interfaces, clock distribution networks, and mixed-voltage embedded controllers requiring stable component supply and long-term manufacturability.
Supply support for 74LVT16244MTDX 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
Fairchild Semiconductor was a U.S.-based semiconductor company specializing in analog and mixed-signal ICs, acquired by ON Semiconductor in 2016. Its legacy logic portfolio remains widely deployed in industrial and communications infrastructure.
The 74LVT16244MTDX belongs to Fairchild's Low-Voltage TTL (LVT) logic family, engineered for seamless interoperability between 3.3V logic domains and legacy 5V systems - targeting high-reliability bus buffering in telecom, computing, and automation equipment.
FAQ
What is the maximum operating temperature range for the 74LVT16244MTDX?
The 74LVT16244MTDX is rated for free-air operating temperatures from –40°C to +85°C, meeting industrial-grade environmental requirements. This range is confirmed in the "Recommended Operating Conditions" table of the Fairchild DS500151 datasheet, and applies specifically to the MTD48 (TSSOP) package variant. Thermal derating is not required within this span, and the device maintains full DC and AC specifications across the entire range.
Does the 74LVT16244MTDX have bushold inputs?
No, the 74LVT16244MTDX does not include bushold circuitry on its inputs. Bushold is exclusive to the LVTH variant (e.g., 74LVTH16244MTD). The 74LVT16244MTDX requires external pull-up or pull-down resistors on unused inputs to prevent floating states, as explicitly stated in the General Description and Features sections of the DS500151 datasheet.
Can the 74LVT16244MTDX drive 5V TTL loads directly?
Yes, the 74LVT16244MTDX can directly drive 5V TTL loads because its outputs are specified to sink up to 64 mA and source up to 32 mA while maintaining VOL ≤ 0.55 V and VOH ≥ VCC – 0.2 V (≥ 3.1 V at VCC = 3.3 V), which satisfies TTL input thresholds. Its 5V-tolerant inputs also accept 0–5.5 V signals, enabling true mixed-voltage interoperation without level shifters.
What is the pin-compatible alternative to the 74LVT16244MTDX with bushold functionality?
The 74LVTH16244MTD is the pin-compatible bushold-enabled counterpart to the 74LVT16244MTDX, sharing identical TSSOP-48 (MTD48) packaging, pinout, and electrical specifications except for the addition of bushold on all data inputs. No PCB layout changes are required when substituting - only firmware or system-level handling of unused inputs differs due to the self-holding behavior.
Is the 74LVT16244MTDX suitable for hot-swap applications?
Yes, the 74LVT16244MTDX supports live insertion/extraction per its datasheet Features section. Its power-up/down high-impedance behavior ensures outputs remain in 3-STATE during supply ramp-up or ramp-down, preventing bus contention or glitches when inserted into powered-backplane systems - a key requirement for modular industrial and telecom chassis designs.
74LVT16244MTDX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74LVT
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 4
- Number of Bits per Element:
- 4
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 32mA, 64mA
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSSOP
74LVT16244MTDX FAQ
1.How can I place an order for 74LVT16244MTDX through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVT16244MTDX 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 74LVT16244MTDX reliable?
The price and inventory of 74LVT16244MTDX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVT16244MTDX is usually 5 days.
3.What payment methods are accepted for 74LVT16244MTDX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVT16244MTDX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVT16244MTDX?
74LVT16244MTDX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVT16244MTDX 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 74LVT16244MTDX?
For technical support, including 74LVT16244MTDX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVT16244MTDX requirements.
6.How does Aetrix verify that 74LVT16244MTDX is sourced from the original manufacturer or authorized distributors?
All 74LVT16244MTDX 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 74LVT16244MTDX meets industry standards.
7.What is the process for return or replacement of 74LVT16244MTDX?
All 74LVT16244MTDX units undergo pre-shipment inspection (PSI). If there is an issue with 74LVT16244MTDX, 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 74LVT16244MTDX part is unused and in its original packaging.
Return procedure for 74LVT16244MTDX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74LVT16244MTDX Tags
-
SN74LVC1G17DBVR
Texas Instruments
-
SN74LVC1G07DCKR
Texas Instruments
-
SN74LVC1G17DCKR
Texas Instruments
-
SN74LVC1G07DBVR
Texas Instruments
-
SN74LVC1G125DCKR
Texas Instruments
-
SN74AHCT1G126DBVR
Texas Instruments
-
SN74LVC1G125DBVR
Texas Instruments
-
SN74AHCT1G125DBVR
Texas Instruments
-
SN74LVC2G17DBVR
Texas Instruments
-
SN74LVC2G07DCKR
Texas Instruments
-
SN74LVC1G34DCKR
Texas Instruments
-
SN74LVC2G17DCKR
Texas Instruments
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
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…
