My Inquiry
My Account
Texas Instruments 74ACT16244DGG
- Part No.:
- 74ACT16244DGG
- Manufacturer:
- Texas Instruments
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74ACT16244DGG.pdf
- Description:
- IC BUFF NON-INVERT 5.5V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,491
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74ACT16244DGG from Texas Instruments is a 16-bit TTL-compatible buffer/line driver with 3-state outputs, designed for memory address driving, clock distribution, and bus interfacing in industrial and embedded systems. It features true output logic, four independent active-low OE inputs, ±24 mA drive capability at 5 V, 8.5 ns max propagation delay (A→Y), and operates from –40°C to 85°C.
For engineers reviewing the 74ACT16244DGG datasheet, 74ACT16244DGG pinout, 74ACT16244DGG application, or 74ACT16244DGG equivalent, key selection criteria include 3-state bus-driving performance, TSSOP-48 thermal/power limits (0.85 W max), EPIC™ CMOS process reliability, and compatibility with 5-V TTL-level control signals.
Technical Context
This device implements four independent 4-bit non-inverting buffers, each with dedicated active-low output-enable (OE) control. All inputs accept TTL-voltage thresholds (VIL = 0.8 V, VIH = 2 V), and outputs drive high-capacitance buses with symmetrical ±24 mA current capability under 5-V supply.
The flow-through pin architecture-inputs on one side, outputs on the opposite-minimizes PCB trace crossovers. Distributed VCC/GND pins (12 total) reduce simultaneous switching noise, and the EPIC™ 1-μm CMOS process delivers 500-mA latch-up immunity at 125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - ensures robust operation across industrial 5-V rail tolerances |
| Output Drive | ±24 mA - supports direct connection to 50-pF bus loads without external buffering |
| Propagation Delay | 4 ns min / 8.5 ns max (A→Y) - enables reliable timing in 100-MHz address/clock paths |
| 3-State Enable Time | 3 ns min / 10.3 ns max (OE→Y) - critical for glitch-free bus arbitration in multiplexed systems |
| Input Capacitance | 4.5 pF - minimizes loading on upstream drivers and preserves signal edge integrity |
| Power Dissipation | 0.85 W max (TA = 55°C, DGG package) - defines thermal derating requirements for dense PCB layouts |
| Operating Temperature | –40°C to +85°C - qualified for extended industrial ambient conditions |
Pinout & Package
TSSOP-48 (DGG) package: 12.6 mm × 6.1 mm × 1.2 mm body, 0.5-mm lead pitch, gull-wing leads, RoHS-compliant NiPdAu finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE, 3OE, 4OE | Active-low output-enable control | Independent gating per 4-bit section; low = enabled, high = high-impedance |
| 1A1–1A4, 2A1–2A4, 3A1–3A4, 4A1–4A4 | Buffer input terminals | 48 total inputs grouped into four 4-bit banks; TTL-compatible voltage thresholds |
| 1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4 | True-buffered output terminals | 48 total outputs; each mirrors corresponding A-input when OE is asserted |
| VCC (pins 7, 14, 21, 28, 35, 42) | Power supply | Six distributed VCC pins reduce IR drop and high-frequency supply impedance |
| GND (pins 4, 11, 18, 25, 32, 39) | Ground reference | Six distributed GND pins minimize ground bounce during simultaneous output switching |
Key Features
| Feature | Design Value |
|---|---|
| Flow-through pinout | Inputs on left/right sides, outputs on opposite side - eliminates layer jumps and vias in dense routing |
| Distributed power/ground | 6× VCC and 6× GND pins - lowers effective supply inductance and suppresses simultaneous switching noise |
| EPIC™ CMOS process | 1-μm geometry with 500-mA latch-up immunity - ensures robustness in noisy industrial environments |
| TTL-input compatibility | VIL ≤ 0.8 V, VIH ≥ 2.0 V - interoperates directly with legacy 5-V TTL logic without level-shifting |
| 3-state output symmetry | Matched tPZL/tPLZ and tPZH/tPHZ - prevents bus contention during enable/disable transitions |
Applications
| Memory Address Buffering | System Bus Transceiver Interface |
|---|---|
|
Use Scenario: Driving 16-bit address lines from a microcontroller to multiple SRAM or Flash devices on a shared bus. IC Role / Device Role / Timing Role: Non-inverting 3-state buffer isolating CPU address outputs from load capacitance of parallel memory chips. Use Value: Enables clean address settling within 8.5 ns while preventing bus contention during CPU wait states via independent OE control. |
Use Scenario: Bidirectional data path conditioning between an FPGA and legacy ISA-style peripheral bus. IC Role / Device Role / Timing Role: Unidirectional line driver stage translating FPGA I/O voltage levels to robust 5-V bus signaling. Use Value: Provides ±24 mA drive into 50-pF loads, ensuring fast edge rates and noise margin compliance across 15 cm traces. |
| Clock Distribution Network | Industrial I/O Expansion Module |
|
Use Scenario: Fan-out of a 5-V system clock to multiple synchronous peripherals (ADCs, DACs, timers). IC Role / Device Role / Timing Role: Low-skew, high-drive buffer replicating clock signal with matched propagation delays across all 16 outputs. Use Value: Delivers sub-10 ns delay matching and <1 ns skew between outputs, preserving setup/hold margins for multi-chip synchronization. |
Use Scenario: Interfacing PLC CPU backplane signals to isolated digital I/O modules requiring 5-V logic level translation. IC Role / Device Role / Timing Role: Level-shifting and current-boosting interface between low-power controller outputs and ruggedized field-side drivers. Use Value: Withstands 500-mA latch-up immunity and operates reliably at –40°C, supporting continuous operation in unheated enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74ACT16244DLR | Same logic function and specs, but SSOP-48 (DL) package: 12.8 mm × 7.5 mm, 0.635-mm pitch, 1.2 W max power dissipation | Better thermal performance in low-airflow environments; requires larger PCB footprint than DGG | Select for higher-power or lower-thermal-resistance needs where board space permits |
| SN74ABT16244DGGR | ABT-family variant: higher drive (±64 mA), faster speed (tPD = 3.6 ns), but higher ICC (100 μA typical vs. 8 μA) | Required for heavier bus loads or tighter timing budgets; not drop-in due to increased supply current and noise | Choose when 74ACT16244DGG's ±24 mA drive or 8.5 ns delay is insufficient for target bus loading/timing |
Compared with 74ACT16244DLR, the 74ACT16244DGG offers 30% smaller PCB area and lower profile but trades 0.35 W of thermal headroom; versus SN74ABT16244DGGR, it provides superior static power efficiency and noise immunity at the cost of drive strength and speed.
Availability
74ACT16244DGG is available at Aetrix Electronics and suitable for memory address buffering, clock distribution, and industrial I/O expansion requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74ACT16244DGG 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 74ACT16244DGG belongs to TI's Widebus™ family of high-density bus-interface ICs, engineered specifically to increase logic density and signal integrity in memory, bus, and clock subsystems of space-constrained industrial controllers.
FAQ
What is the maximum operating temperature for the 74ACT16244DGG?
The 74ACT16244DGG is characterized for operation from –40°C to +85°C. This industrial-grade temperature range is validated per TI's SCAS116B datasheet and applies specifically to the DGG-package variant. Operation outside this range may result in parametric degradation or functional failure.
Does the 74ACT16244DGG support true TTL input levels?
Yes, the 74ACT16244DGG accepts standard TTL input voltage thresholds: VIL ≤ 0.8 V (guaranteed low) and VIH ≥ 2.0 V (guaranteed high) over its full operating temperature range. This allows direct interfacing with legacy 5-V TTL logic without level-shifting circuitry.
How many independent 3-state control inputs does the 74ACT16244DGG have?
The 74ACT16244DGG has four independent active-low output-enable inputs: 1OE, 2OE, 3OE, and 4OE. Each controls a separate 4-bit buffer section (1Y1–1Y4, etc.), enabling granular bus partitioning and power-gating per segment.
What is the typical supply current for the 74ACT16244DGG at 5.5 V?
At VCC = 5.5 V and TA = 25°C, the typical quiescent supply current (ICC) for the 74ACT16244DGG is 8 μA. This ultra-low static current supports energy-efficient designs in always-on industrial monitoring systems.
Is the 74ACT16244DGG pin-compatible with other Widebus™ 16-bit buffers?
No - the 74ACT16244DGG uses a fixed 48-pin TSSOP (DGG) pinout optimized for flow-through layout. While functionally similar to 74ACT16244DLR (SSOP), it is not pin-compatible due to differing lead pitch (0.5 mm vs. 0.635 mm) and body dimensions. Always verify mechanical fit before substitution.
74ACT16244DGG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74ACT
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Tube
- 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:
- 24mA, 24mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSSOP
74ACT16244DGG FAQ
1.How can I place an order for 74ACT16244DGG through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ACT16244DGG 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 74ACT16244DGG reliable?
The price and inventory of 74ACT16244DGG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ACT16244DGG is usually 5 days.
3.What payment methods are accepted for 74ACT16244DGG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ACT16244DGG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ACT16244DGG?
74ACT16244DGG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ACT16244DGG 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 74ACT16244DGG?
For technical support, including 74ACT16244DGG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ACT16244DGG requirements.
6.How does Aetrix verify that 74ACT16244DGG is sourced from the original manufacturer or authorized distributors?
All 74ACT16244DGG 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 74ACT16244DGG meets industry standards.
7.What is the process for return or replacement of 74ACT16244DGG?
All 74ACT16244DGG units undergo pre-shipment inspection (PSI). If there is an issue with 74ACT16244DGG, 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 74ACT16244DGG part is unused and in its original packaging.
Return procedure for 74ACT16244DGG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74ACT16244DGG 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
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…
