SN74ABT16833DLG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments SN74ABT16833DLG4 is a 16-bit non-inverting registered bus transceiver with independent output enable for each direction, operating in the ABT logic family at TTL voltage levels. It supports bidirectional data transfer across 50 pF load buses in a 56-pin SSOP package. Available in green lead-free packaging from global stock.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 56
- Lifecycle
- OBSOLETE
- Datasheet
- SN74ABT16833DLG4 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 SN74ABT16833DLG4?
- 16-bit bidirectional registered transceiver with independent direction control and separate output enables for each data path, enabling flexible bus arbitration in multi-master systems
- ABT family switching speed combines CMOS low power with TTL drive levels, supporting bus operation at frequencies above 100 MHz with 50 pF load capacitance
- Non-inverting registered architecture allows synchronous data latching on both the A-to-B and B-to-A paths, maintaining data coherency across clock boundaries
- 56-pin SSOP package routes 16 data bits per direction with all control signals in a compact surface-mount footprint suitable for high-density backplane and memory bus boards
What is SN74ABT16833DLG4 used for?
The SN74ABT16833DLG4 is designed for high-speed data bus applications in memory subsystems, CPU backplane interfaces, and FPGA I/O expansion boards where 16 bits of registered bidirectional transfer are required with independent direction control. Embedded processors communicating with external SRAM, NOR flash, or peripheral bus controllers use this device to buffer and register address or data lines, preventing bus contention and reducing capacitive loading on the processor pins. Telecommunications line cards and industrial control backplanes also rely on ABT-family transceivers for reliable data transfer across noisy bus environments at TTL-compatible voltage swings.
What are the specifications of SN74ABT16833DLG4?
| 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-G56 |
| 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 | SSOP56,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 36mA |
| 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 | 0.635mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Trigger Type | POSITIVE EDGE |
| 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 SN74ABT16833DLG4 datasheet?
SN74ABT16833DLG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74ABT16833DLG4?
Compatible alternatives and drop-in replacements for SN74ABT16833DLG4:
Bus Transceiver, ABT Series, 9-Func, 8-Bit, True Output, BICMOS, PDSO56
Bus Transceiver, ABT Series, 2-Func, 8-Bit, True Output, BICMOS, PDSO48
Bus Transceiver, ABT Series, 2-Func, 8-Bit, Inverted Output, BICMOS, PDSO48
Frequently Asked Questions
How does the independent output enable per direction in the SN74ABT16833DLG4 prevent bus contention?
Each direction (A-to-B and B-to-A) has its own output enable pin, allowing the system controller to disable one side before enabling the other. This break-before-make sequencing ensures no two drivers actively drive the same bus line simultaneously, preventing shoot-through currents that could exceed the 50 pF rated bus load and damage output stages.
At what clock frequencies can the SN74ABT16833DLG4 reliably transfer data in registered mode?
The ABT family propagation delay is typically under 4 ns, supporting registered clock frequencies above 100 MHz with adequate setup and hold margins. On a 50 pF loaded bus, the output transition time stays below 2 ns, which is compatible with synchronous memory interfaces running at 66 MHz to 133 MHz bus speeds common in embedded and workstation memory systems.
Which legacy processor bus architectures benefit from using the SN74ABT16833DLG4 as a registered buffer?
PC/104, VMEbus, and CompactPCI bus architectures that route 16-bit data over passive backplane connectors to multiple boards benefit from the registered isolation this transceiver provides. Registered buffers prevent the high capacitance of long bus traces (often above 100 pF) from loading the processor directly, cutting signal rise time degradation and extending the viable bus length by 30% to 50%.
How does the 56-pin SSOP package of the SN74ABT16833DLG4 compare in board density to a DIP equivalent for 16-bit bus designs?
A 56-pin SSOP occupies approximately 20 mm x 8 mm, far smaller than a hypothetical 56-pin DIP package that would span roughly 38 mm x 19 mm. The SSOP footprint allows a 16-bit registered transceiver to fit in under 160 mm² of board space, enabling high-density memory card designs where multiple transceivers must be placed within a few centimeters of the processor socket.
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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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