74AHCT16540DGVRE4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The 74AHCT16540DGVRE4 is a 16-bit buffer and line driver with 3-state outputs from Texas Instruments, featuring dual output enable control for flexible bus management. It operates with AHCT logic family compatibility, supports 48-pin SSOP packaging, and delivers high-speed signal buffering up to 3.3V/5V levels. Available in stock worldwide with competitive pricing for industrial and communication applications.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 48
- Lifecycle
- OBSOLETE
- Datasheet
- 74AHCT16540DGVRE4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 16-bit unidirectional buffer/driver with 3-state outputs for high-drive bus applications
- Dual active-low output enable (1OE and 2OE) for flexible bus partitioning
- AHCT logic family compatible with 5V inputs and 3.3V or 5V supply operation
- 48-pin SSOP package with 37 characterized specifications for design reliability
- 15 pF load capacitance rating enabling high-speed signal integrity at bus outputs
Applications
The 74AHCT16540DGVRE4 is widely used in computer memory bus buffering, data communication backplanes, and industrial control systems requiring high-drive 16-bit signal paths. Its dual output-enable architecture makes it ideal for bus arbitration and multiplexed data routing in embedded systems and network equipment.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Additional Feature | WITH DUAL OUTPUT ENABLE |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | AHCT/VHCT/VT |
| JESD-30 Code | R-PDSO-G48 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 15pF |
| Logic IC Type | BUS DRIVER |
| Max I(ol) | 0.008A |
| Number of Bits | 8 |
| Number of Functions | 2 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | INVERTED |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP48,.25,16 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.04mA |
| Prop. Delay@Nom-Sup | 10.5ns |
| Propagation Delay (tpd) | 10.5ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.4mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for 74AHCT16540DGVRE4:
Bus Driver, AHCT/VHCT/VT Series, 2-Func, 8-Bit, True Output, CMOS, PDSO48
Frequently Asked Questions
What is the operating supply voltage range of the 74AHCT16540DGVRE4?
The 74AHCT16540DGVRE4 operates from a supply voltage (VCC) of 4.5V to 5.5V, with a typical operating voltage of 5V. It accepts CMOS and TTL-level inputs down to 2V logic high threshold, making it compatible with both 3.3V and 5V logic families.
What is the maximum propagation delay of the 74AHCT16540DGVRE4 at 5V supply?
At VCC = 5V and a load capacitance (CL) of 15 pF, the 74AHCT16540DGVRE4 has a typical propagation delay (tpd) of approximately 5.2 ns and a maximum of 10 ns. This high-speed performance makes it suitable for bus buffering in time-critical digital systems.
How many output enable pins does the 74AHCT16540DGVRE4 have, and how do they work?
The 74AHCT16540DGVRE4 has two active-low output enable pins (OE1 and OE2). Both must be driven low simultaneously to enable the 16 outputs. If either OE pin is high, all 16 outputs enter a high-impedance (3-state) condition, allowing multiple devices to share a common bus without contention.
What package does the 74AHCT16540DGVRE4 use and how many pins does it have?
The 74AHCT16540DGVRE4 is housed in a 48-pin SSOP (Shrink Small Outline Package), designated JESD-30 code R-PDSO-G48. The SSOP package has a 0.635 mm (25 mil) pin pitch, offering a compact footprint suitable for high-density PCB designs in industrial and communication equipment.
Is the 74AHCT16540DGVRE4 RoHS compliant and lead-free?
Yes, the 74AHCT16540DGVRE4 is fully RoHS compliant and lead-free, as indicated by its JESD-609 code e4 and Pb-free code 'Yes'. The 'E4' suffix in the part number also confirms the device meets lead-free soldering requirements, making it suitable for use in environmentally regulated end products.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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