My Inquiry
My Account
Texas Instruments SN74AHCT16244DGVR
- Part No.:
- SN74AHCT16244DGVR
- Manufacturer:
- Texas Instruments
- Package:
- 48-TFSOP (0.173", 4.40mm Width)
- Datasheet:
-
SN74AHCT16244DGVR.pdf
- Description:
- IC BUF NON-INVERT 5.5V 48TVSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,997
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SN74AHCT16244DGVR from Texas Instruments is a 16-bit noninverting 3-state buffer/driver in a 48-pin TVSOP package, designed for memory address, clock, and bus interface applications. It features four independent 4-bit sections with active-low output-enable (OE) inputs, TTL-compatible inputs (VIH = 2 V, VIL = 0.8 V), 5-V supply operation, and ±25 mA output drive capability. Used in telecom infrastructure and industrial control systems requiring level translation from 3.3 V to 5 V.
For engineers reviewing the SN74AHCT16244DGVR datasheet, SN74AHCT16244DGVR pinout, SN74AHCT16244DGVR application, or SN74AHCT16244DGVR equivalent, key selection criteria include 3-state bus driving capability, input voltage compatibility with legacy TTL logic, thermal performance at –40°C to 125°C, and TVSOP-48 footprint constraints for high-density PCB layouts.
Technical Context
The SN74AHCT16244DGVR implements four independent 4-bit noninverting buffers, each with dedicated active-low OE control (1OE–4OE). All outputs are 3-state capable and exhibit symmetrical drive strength (IOH = –8 mA, IOL = 8 mA at VCC = 4.5 V).
Its EPIC™ CMOS process enables TTL-voltage compatibility while maintaining CMOS power efficiency. Distributed VCC/GND pins minimize switching noise, and flow-through pin architecture supports optimized signal routing-critical for timing-sensitive bus drivers in telecom and industrial embedded systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - ensures stable operation across industrial 5-V rails with ±10% tolerance |
| Input Thresholds | VIH = 2 V, VIL = 0.8 V - guarantees reliable interfacing with 3.3-V and TTL logic families |
| Output Drive | ±25 mA per output - sufficient for driving multiple CMOS loads or short traces without external buffering |
| Propagation Delay | tPLH/tPHL ≤ 10.5 ns @ CL = 15 pF - supports >50 MHz bus operation in low-noise environments |
| Operating Temp | –40°C to +125°C - qualified for extended industrial and automotive under-hood applications |
| ESD Rating | 2000 V HBM - meets MIL-STD-883 requirements for robust handling in manufacturing |
| Power Dissipation | Cpd = 8.2 pF - enables ultra-low dynamic power in high-frequency enable/disable cycling |
Pinout & Package
SN74AHCT16244DGVR uses a 48-pin Thin Very Small Outline Package (TVSOP, DGV), measuring 9.70 mm × 4.40 mm with 0.4 mm pitch. The package features gull-wing leads, exposed thermal pad (not electrically connected), and pin 1 quadrant marking per JEDEC MO-153.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE–4OE | Active-low output enable | Each controls one 4-bit section; tied high via pullup for safe power-up high-Z state |
| 1A1–4A4 | Buffer input | 16 total TTL-compatible inputs; unused inputs must be tied to VCC or GND |
| 1Y1–4Y4 | Noninverting 3-state output | 16 buffered outputs; high-Z when corresponding OE is high |
| VCC (Pins 7,18,31,42) | Power supply | Distributed VCC pins reduce simultaneous switching noise and improve decoupling |
| GND (Pins 4,10,15,21,28,34,39,45) | Ground reference | Eight GND pins provide low-inductance return paths for all output sections |
Key Features
| Feature | Design Value |
|---|---|
| TTL-voltage compatible inputs | Accepts 3.3-V logic levels directly-enables seamless 3.3 V → 5 V level translation without external resistors |
| Flow-through pin architecture | Input and output pins aligned on opposite sides-minimizes trace crossovers and improves signal integrity in dense layouts |
| Distributed VCC/GND pins | Four VCC and eight GND pins-reduces ground bounce and improves noise immunity during fast switching |
| Slow edge-rate control | Intentionally limited dV/dt-suppresses output ringing and EMI in unterminated transmission lines |
| Latch-up immunity | >250 mA per JESD17-ensures robustness against transient overcurrent events in shared-bus systems |
Applications
| Telecom Infrastructure | Industrial Control Systems |
|---|---|
Use Scenario: Driving backplane address/data buses in modular base station equipment with mixed-voltage subsystems. IC Role / Device Role / Timing Role: 3-state buffer isolating FPGA-configured control logic from legacy 5-V peripheral modules. Use Value: Enables clean bus arbitration and hot-swap-safe enable/disable sequencing without signal contention. | Use Scenario: Interfacing PLC I/O expansion cards with 3.3-V microcontrollers and 5-V field sensors/actuators. IC Role / Device Role / Timing Role: Level-translating buffer for digital input capture and output drive in deterministic real-time control loops. Use Value: Maintains timing margins (≤10.5 ns propagation delay) while supporting –40°C to 125°C ambient operation. |
| Electronic Point-of-Sale Terminals | Motor Drive Interface Boards |
Use Scenario: Managing parallel printer port handshaking signals and status lines in retail kiosks. IC Role / Device Role / Timing Role: Bidirectional bus driver with independent OE control for handshake coordination between host MCU and peripherals. Use Value: Prevents bus contention during power transitions using pullup-enabled OE pins and latch-up-resistant design. | Use Scenario: Isolating microcontroller GPIOs from high-current gate drivers and current-sense amplifiers in BLDC motor controllers. IC Role / Device Role / Timing Role: Noise-immune signal conditioner for PWM enable/disable and fault feedback signals. Use Value: Distributed grounding and slow-edge outputs suppress coupling into sensitive analog feedback paths. |
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 |
|---|---|---|---|
| SN74AHCT16244DGGR | TSSOP-48 package (12.5 mm × 6.1 mm); 10.7°C/W higher RθJA than DGVR | Suitable for less thermally constrained boards where larger footprint is acceptable | Choose DGGR if board space allows and thermal margin exceeds 15°C |
| SN74LVC16244ADGVR | Lower VCC range (1.65–3.6 V); 3.3-V only; no TTL input compatibility | Not usable in 5-V systems or for 3.3 V → 5 V translation | Select only for pure 3.3-V domains requiring lower static current (ICC = 10 µA max) |
Compared with SN74AHCT16244DGVR, the DGGR offers identical logic function but requires more PCB area and delivers slightly worse thermal performance, while the LVC16244A operates exclusively at 3.3 V and cannot replace it in mixed-voltage or TTL-interfaced designs.
Availability
SN74AHCT16244DGVR is available at Aetrix Electronics and suitable for telecom infrastructure, industrial control systems, and electronic point-of-sale terminals requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SN74AHCT16244DGVR 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 specializing in analog, embedded processing, and connectivity technologies, with over 90 years of innovation in industrial, automotive, and communications markets.
The SN74AHCT16244DGVR belongs to TI's Widebus™ family of high-density logic devices, engineered specifically to enhance bus-driving performance, reduce PCB layer count, and improve signal integrity in memory, clock, and data-path applications.
FAQ
What is the maximum operating temperature for SN74AHCT16244DGVR?
The SN74AHCT16244DGVR is fully specified from –40°C to +125°C ambient temperature. This extended range is validated per JEDEC JESD22-A108 and supported by thermal metrics including RθJA = 83.5°C/W (TVSOP), enabling reliable deployment in industrial enclosures and telecom base stations without derating.
Does SN74AHCT16244DGVR support 3.3-V input logic levels?
Yes, SN74AHCT16244DGVR accepts 3.3-V logic inputs reliably: its VIH threshold is 2.0 V minimum and VIL is 0.8 V maximum at VCC = 4.5–5.5 V. This makes SN74AHCT16244DGVR ideal for translating signals from 3.3-V FPGAs or MCUs to 5-V buses without level-shifters.
How should unused inputs be handled on SN74AHCT16244DGVR?
All unused inputs on SN74AHCT16244DGVR must be tied to either VCC or GND-floating inputs cause undefined output states and increased ICC. TI recommends tying unused OE inputs to VCC via a pullup resistor (e.g., 10 kΩ) to ensure high-impedance outputs at power-up, preventing bus contention.
What is the recommended bypass capacitor configuration for SN74AHCT16244DGVR?
TI specifies one 0.1-μF ceramic capacitor per VCC pin (pins 7, 18, 31, 42), placed as close as possible to each pin. For optimal high-frequency noise suppression, pair each 0.1-μF cap with a 1-μF bulk capacitor near the device's center. Avoid shared vias between VCC and GND connections to maintain low-inductance paths.
Is SN74AHCT16244DGVR pin-compatible with SN74AHCT16244DLR?
Yes, SN74AHCT16244DGVR (TVSOP-48) and SN74AHCT16244DLR (SSOP-48) share identical pinout, function mapping, and logic behavior per TI's SCLS334J datasheet. However, their footprints differ: DGV is 9.7 mm × 4.4 mm (0.4 mm pitch), DL is 15.8 mm × 7.5 mm (0.635 mm pitch)-requiring separate PCB layouts despite functional equivalence.
SN74AHCT16244DGVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AHCT
- Package/Case:
- 48-TFSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 8mA, 8mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TVSOP
SN74AHCT16244DGVR FAQ
1.How can I place an order for SN74AHCT16244DGVR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AHCT16244DGVR 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 SN74AHCT16244DGVR reliable?
The price and inventory of SN74AHCT16244DGVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AHCT16244DGVR is usually 5 days.
3.What payment methods are accepted for SN74AHCT16244DGVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74AHCT16244DGVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74AHCT16244DGVR?
SN74AHCT16244DGVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AHCT16244DGVR 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 SN74AHCT16244DGVR?
For technical support, including SN74AHCT16244DGVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AHCT16244DGVR requirements.
6.How does Aetrix verify that SN74AHCT16244DGVR is sourced from the original manufacturer or authorized distributors?
All SN74AHCT16244DGVR 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 SN74AHCT16244DGVR meets industry standards.
7.What is the process for return or replacement of SN74AHCT16244DGVR?
All SN74AHCT16244DGVR units undergo pre-shipment inspection (PSI). If there is an issue with SN74AHCT16244DGVR, 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 SN74AHCT16244DGVR part is unused and in its original packaging.
Return procedure for SN74AHCT16244DGVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SN74AHCT16244DGVR 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…
