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Texas Instruments SN74LVT162244ADGG
- Part No.:
- SN74LVT162244ADGG
- Manufacturer:
- Texas Instruments
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
SN74LVT162244ADGG.pdf
- Description:
- IC BUFF NON-INVERT 3.6V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,794
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Product details
Overview
SN74LVT162244ADGG from Fairchild Semiconductor is a low-voltage 16-bit non-inverting buffer/line driver with 3-STATE outputs, 25Ω series output resistors, and operation at 2.7–3.6 V supply. It features nibble-level (4-bit) enable control (OE1–OE4), TTL-compatible 5V input tolerance, and is packaged in a 48-pin TSSOP (MTD48). It is used in memory address driving, clock distribution, and bus-oriented transmitter/receiver applications.
For engineers reviewing the SN74LVT162244ADGG datasheet, SN74LVT162244ADGG pinout, SN74LVT162244ADGG application, or SN74LVT162244ADGG equivalent, key selection considerations include its 25Ω integrated output termination, 3.3V core compatibility with 5V-tolerant inputs, 4.0 ns max propagation delay at 3.3V, 12 mA drive strength per output, and TSSOP-48 mechanical footprint for high-density PCB layouts.
Technical Context
The SN74LVT162244ADGG implements sixteen independent non-inverting buffers, each with active-low 3-STATE control grouped into four 4-bit sections (OE1–OE4). Its BiCMOS process enables 5V-tolerant inputs while operating from a 3.3V supply, supporting mixed-voltage system interfacing without level shifters.
Each output integrates 25Ω series resistance in both HIGH and LOW states-eliminating need for external termination and reducing overshoot/undershoot on transmission lines. Power-up/power-down high-impedance behavior prevents bus contention during supply ramping.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply Range | 2.7 V to 3.6 V - Enables stable operation in modern 3.3V logic systems with margin for rail variation. |
| Input Voltage Range | 0 V to 5.5 V - Supports direct interface to legacy 5V TTL buses without external level translation. |
| Output Drive Strength | 12 mA HIGH / 12 mA LOW - Sufficient for driving multiple LVT/LVTH loads or moderate capacitive loads (≤50 pF). |
| Propagation Delay | Max 4.0 ns (tPLH/tPHL, CL = 50 pF) - Suitable for high-speed address/data buffering up to ~200 MHz clock domains. |
| Output Series Resistance | 25 Ω (integrated) - Reduces signal reflections and eliminates discrete termination resistors on PCB traces. |
| Operating Temperature | –40 °C to +85 °C - Qualified for industrial ambient environments without derating. |
| Power Supply Current (Disabled) | 0.19 mA (ICCZ) - Minimizes standby power in bus-hold or hot-swap configurations. |
Pinout & Package
SN74LVT162244ADGG is housed in a 48-lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1 mm wide, with exposed pad not electrically connected. Pinout follows standard SSOP/TSSOP 48-pin layout as documented in Fairchild DS012445.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OEn (OE1–OE4) | Active-Low Output Enable | Four independent controls enabling/disabling 4-bit nibbles (O0–O3, O4–O7, etc.) - enables flexible bus segmentation. |
| I0–I15 | Data Inputs | Non-inverting inputs accepting 0–5.5 V; no bushold - requires external pull-up/down if floating. |
| O0–O15 | 3-STATE Outputs | Buffered outputs with integrated 25 Ω series resistance - reduce EMI and simplify routing. |
| VCC | Supply Rail | 3.3 V nominal supply; must be decoupled locally due to fast switching transients. |
| GND | Ground Reference | Multiple GND pins (pins 12, 24, 36, 48) provide low-inductance return paths for all output groups. |
Key Features
| Feature | Design Value |
|---|---|
| 25 Ω Integrated Output Termination | Eliminates need for 16 external series resistors, saving board space and reducing BOM count and signal integrity tuning effort. |
| 5V-Tolerant Inputs | Accepts 0–5.5 V input signals while powered from 3.3 V - enables seamless interconnection with older 5V logic or microcontrollers. |
| Nibble-Controlled 3-STATE | Four independent OE pins allow selective activation of 4-bit segments - supports partial bus driving and reduces dynamic power consumption. |
| Glitch-Free Power Sequencing | Outputs remain high-impedance during power-up/down - prevents bus contention in hot-plug or multi-rail systems. |
| Low Dynamic Power | ICCZ = 0.19 mA when disabled - critical for low-power standby modes in embedded controllers and I/O expanders. |
Applications
| Memory Address Buffering | Clock Distribution Network |
|---|---|
Use Scenario: Driving 16-bit address bus from an FPGA or microcontroller to multiple SRAM or Flash devices on a shared bus. IC Role / Device Role / Timing Role: Non-inverting voltage-level translator and fanout buffer with controlled edge rates and built-in termination. Use Value: Prevents address skew and reflection-induced setup/hold violations by matching trace impedance via 25 Ω series resistance. | Use Scenario: Distributing a single 33 MHz system clock to eight synchronous peripherals with matched trace lengths. IC Role / Device Role / Timing Role: Low-skew, low-jitter clock fanout buffer with 3-STATE capability for dynamic clock gating. Use Value: tOSHL/tOSLH ≤ 1.0 ns ensures <100 ps inter-output skew - maintains timing margins across clocked receivers. |
| PCI/ISA Bus Transceiver Interface | Industrial I/O Expansion Module |
Use Scenario: Interfacing a 3.3V host processor to legacy 5V PCI or ISA peripheral cards requiring bidirectional data buffering. IC Role / Device Role / Timing Role: Unidirectional line driver with 5V-tolerant inputs and 3.3V-compatible outputs - used in transmit-only direction. Use Value: Eliminates need for discrete level shifters and external termination, simplifying compliance with PCI electrical specs. | Use Scenario: Expanding digital I/O on a PLC mainboard where 16 GPIO lines must drive LEDs, relays, or optocouplers with noise immunity. IC Role / Device Role / Timing Role: Robust output driver with latch-up immunity (>500 mA) and ESD protection (HBM >2000 V). Use Value: Withstands industrial ESD events and inductive load kickback without external clamping diodes or RC snubbers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit buffer/line driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVTH162244ADGG | Includes bushold inputs (75 µA hold current); otherwise identical pinout, timing, and drive specs. | Eliminates need for external pull-ups on unused inputs - preferred in systems with partially populated buses. | Select when input floating states must be actively held without added components. |
| 74ALVC162244PW | Lower ICCZ (0.1 µA vs. 0.19 mA); same 25 Ω outputs but only 3.3V input tolerance (no 5V tolerance). | Not suitable for mixed 5V/3.3V interfaces; better for ultra-low-power battery-operated designs with clean 3.3V rails. | Select only in fully 3.3V systems where lowest standby current is critical and 5V inputs are absent. |
Compared with SN74LVTH162244ADGG, the SN74LVT162244ADGG lacks bushold but offers identical drive, timing, and termination - making it ideal where input pull-ups are already present or unnecessary. Versus 74ALVC162244PW, it trades higher ICCZ for essential 5V input tolerance and proven industrial robustness.
Availability
SN74LVT162244ADGG is available at Aetrix Electronics and suitable for memory subsystems, clock distribution networks, industrial I/O expansion modules, and legacy bus interface designs requiring stable component supply and long-term manufacturability.
Supply support for SN74LVT162244ADGG 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 analog and power IC manufacturer acquired by ON Semiconductor in 2016; its legacy logic portfolio remains widely deployed and supported.
The LVT/LVTH 16-bit buffer family-including SN74LVT162244ADGG-was engineered for high-speed, low-noise bus interfacing in mixed-voltage computing and industrial control systems, emphasizing signal integrity, power efficiency, and interoperability.
FAQ
What is the function of the OE1–OE4 pins on the SN74LVT162244ADGG?
The OE1–OE4 pins on the SN74LVT162244ADGG are active-low output enable controls, each managing a 4-bit nibble (e.g., OE1 enables O0–O3). They allow independent 3-STATE control of output groups, enabling partial bus driving and reducing dynamic power. All four can be tied together for full 16-bit operation. This architecture supports flexible memory mapping and clock gating in complex digital systems.
Does the SN74LVT162244ADGG support 5V logic inputs while operating at 3.3V VCC?
Yes, the SN74LVT162244ADGG supports input voltages from 0 V to 5.5 V while powered from a 2.7–3.6 V supply. This 5V-tolerant input capability allows direct connection to legacy 5V TTL or CMOS outputs without level-shifting circuitry-making it ideal for upgrading subsystems in mixed-voltage designs while maintaining backward compatibility.
What does the "25 series resistors" specification mean for the SN74LVT162244ADGG?
The "25 series resistors" in the SN74LVT162244ADGG refer to integrated 25 Ω resistors placed in series with each output transistor in both HIGH and LOW states. This on-die termination reduces signal reflections, overshoot, and undershoot on PCB traces-eliminating the need for 16 discrete external series resistors and improving signal integrity in high-speed bus and clock applications.
Is the SN74LVT162244ADGG pin-compatible with the SN74LVTH162244ADGG?
Yes, the SN74LVT162244ADGG is pin-compatible with the SN74LVTH162244ADGG in the same package (e.g., TSSOP-48). Both share identical pin assignments, electrical timing, drive strength, and 25 Ω output resistance. The sole functional difference is that SN74LVTH162244ADGG includes bushold inputs, whereas SN74LVT162244ADGG does not-requiring external pull-ups if inputs may float.
What is the maximum operating temperature range for the SN74LVT162244ADGG?
The SN74LVT162244ADGG is rated for operation from –40 °C to +85 °C under recommended conditions. This industrial temperature range is verified per Fairchild DS012445 and supports deployment in demanding environments such as factory automation controllers, telecom infrastructure, and automotive body electronics-without thermal derating of timing or drive parameters.
SN74LVT162244ADGG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVT
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- 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:
- 12mA, 12mA
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSSOP
SN74LVT162244ADGG FAQ
1.How can I place an order for SN74LVT162244ADGG through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVT162244ADGG 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 SN74LVT162244ADGG reliable?
The price and inventory of SN74LVT162244ADGG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVT162244ADGG is usually 5 days.
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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 SN74LVT162244ADGG?
For technical support, including SN74LVT162244ADGG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVT162244ADGG requirements.
6.How does Aetrix verify that SN74LVT162244ADGG is sourced from the original manufacturer or authorized distributors?
All SN74LVT162244ADGG 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 SN74LVT162244ADGG meets industry standards.
7.What is the process for return or replacement of SN74LVT162244ADGG?
All SN74LVT162244ADGG units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVT162244ADGG, 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 SN74LVT162244ADGG part is unused and in its original packaging.
Return procedure for SN74LVT162244ADGG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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