74ABT16623DGGRE4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The 74ABT16623DGGRE4 is a 16-bit bidirectional bus transceiver from the ABT logic family with 3-state outputs and independent output enables for each direction, rated for 50 pF load capacitance in a 48-pin SSOP package. It enables high-speed data bus interfacing with worldwide shipping availability.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 48
- Lifecycle
- OBSOLETE
- Datasheet
- 74ABT16623DGGRE4 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
What are the key features of 74ABT16623DGGRE4?
- 16-bit bidirectional data path with independent output enables for each direction enabling asymmetric bus control
- ABT logic family delivering fast edge rates compatible with 5 V TTL and 3.3 V systems
- 3-state outputs on all 16 bits allowing multiple transceivers to share a common bus without contention
- 50 pF rated load capacitance in 48-pin SSOP supporting backplane and card-edge bus applications
What is 74ABT16623DGGRE4 used for?
The 74ABT16623DGGRE4 is a standard building block for 16-bit data buses in DSP boards, FPGAs, and memory subsystems where bidirectional data transfer must be independently enabled in each direction to avoid bus contention. Its ABT switching speed and 3-state outputs make it suitable for VMEbus, ISA, and custom parallel bus architectures in industrial controllers and embedded computing systems. System designers also use it to buffer wide data paths between processor buses and peripheral logic on backplane boards where multiple boards share a common 16-bit data highway.
What are the specifications of 74ABT16623DGGRE4?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Additional Feature | WITH INDEPENDENT OUTPUT ENABLE FOR EACH DIRECTION |
| Control Type | INDEPENDENT CONTROL |
| Count Direction | BIDIRECTIONAL |
| Family | ABT |
| JESD-30 Code | R-PDSO-G48 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS TRANSCEIVER |
| Max I(ol) | 0.064A |
| Number of Bits | 8 |
| Number of Functions | 2 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP48,.3,20 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 35mA |
| Prop. Delay@Nom-Sup | 4.3ns |
| Propagation Delay (tpd) | 4.3ns |
| 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 | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| 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 |
Where can I find the 74ABT16623DGGRE4 datasheet?
74ABT16623DGGRE4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for 74ABT16623DGGRE4?
Compatible alternatives and drop-in replacements for 74ABT16623DGGRE4:
Bus Transceiver, ABT Series, 2-Func, 8-Bit, True Output, BICMOS, PDSO56
Frequently Asked Questions
Why does the 74ABT16623DGGRE4 need independent output enables for each direction rather than a single direction pin?
Independent output enables for the A-to-B and B-to-A directions allow the host logic to drive one bus side while keeping the other in high-impedance state, preventing backfeed through the transceiver. This is critical in systems where the source bus is driven by a DMA controller and the destination bus is simultaneously driven by a CPU, avoiding bus contention that would occur with a single bidirectional enable.
How does 74ABT16623DGGRE4's ABT family switching speed compare to HC or LVC parts for backplane use?
ABT logic typically achieves propagation delays of 2 ns to 4 ns, significantly faster than the 5 ns to 10 ns range of HC-family transceivers and comparable to LVC at 3.3 V. The faster slew rates and higher output drive strength of ABT allow reliable signal transmission over 50 pF loaded bus traces at clock frequencies above 50 MHz in backplane-connected card designs.
Can 74ABT16623DGGRE4 interface between a 5 V parallel bus and a 3.3 V FPGA data port?
The ABT family is specified for 5 V VCC operation with inputs tolerant to 5 V signals, making it compatible with TTL bus signals. For direct 3.3 V FPGA interfacing, the output voltage swing and input thresholds must be verified against the specific FPGA I/O standard; in many cases an intermediate LVC or AVLC variant is preferred for mixed 3.3 V to 5 V translation, as ABT drives outputs to full 5 V swing which may exceed 3.3 V FPGA input absolute maximum ratings.
How many 74ABT16623DGGRE4 devices are needed to build a 64-bit bidirectional data bus?
Four 74ABT16623DGGRE4 devices are required for a 64-bit bus, as each IC handles 16 bits. All 4 devices can share a common direction control signal or be independently enabled in groups of 16 bits for nibble-granular data path control. The 48-pin SSOP packages allow all 4 devices to fit within a 25 mm x 15 mm PCB area, using standard 0.635 mm pitch footprints.
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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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