74ACT16543DLG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The 74ACT16543DLG4 is a 16-bit non-inverting dual latched bus transceiver from Texas Instruments in a 56-pin SSOP package. It operates at 5V with independent bidirectional control and separate output enable per direction for flexible bus interfacing. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 56
- Lifecycle
- OBSOLETE
- Datasheet
- 74ACT16543DLG4 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 non-inverting registered bus transceiver with independent latch control for each direction, enabling flexible bidirectional data bus management
- ACT logic family provides high-speed 5V operation with TTL-compatible inputs and CMOS outputs for mixed logic system interfacing
- Independent output enable for each direction plus master latch control in a compact 56-pin SSOP package minimizes board space
Applications
The 74ACT16543DLG4 is used in high-speed digital systems requiring bidirectional 16-bit data bus buffering with latching, such as processor-to-memory interfaces, FPGA I/O expansion, and backplane bus interfaces. Its independent direction and enable controls make it well suited for complex bus arbitration and data multiplexing in industrial computing and communication equipment.
Specifications
| YTEOL | 0 |
| Additional Feature | INDEPENDENT OUTPUT ENABLE FOR EACH DIRECTION; MASTER CONTROL FOR LATCH |
| Control Type | INDEPENDENT CONTROL |
| Count Direction | BIDIRECTIONAL |
| Family | ACT |
| JESD-30 Code | R-PDSO-G56 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | REGISTERED BUS TRANSCEIVER |
| Max I(ol) | 0.024A |
| 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) | 0.08mA |
| Prop. Delay@Nom-Sup | 11.6ns |
| Propagation Delay (tpd) | 13.8ns |
| 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 | 0.635mm |
| 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
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What logic family does the 74ACT16543DLG4 belong to?
The 74ACT16543DLG4 belongs to the ACT (Advanced CMOS Technology with TTL-compatible inputs) logic family, operating at a 5V supply voltage. ACT devices combine fast switching speeds with CMOS low-power characteristics, making them suitable for high-speed digital bus interfacing applications.
How many bits does the 74ACT16543DLG4 support?
The 74ACT16543DLG4 is a 16-bit device organized as two independent 8-bit latched transceivers. Each 8-bit section operates with its own latch enable and direction control, allowing the 16-bit bus to be split or controlled independently for flexible bus management.
What package does the 74ACT16543DLG4 use?
The 74ACT16543DLG4 is housed in a 56-pin SSOP (Shrink Small Outline Package), a compact surface-mount package with a small footprint. The 56-pin count accommodates all 16 bidirectional data lines plus multiple control signals in a space-efficient form factor.
What control features does the 74ACT16543DLG4 provide?
The 74ACT16543DLG4 features independent output enable pins for each direction of data flow and a master latch control for each 8-bit section. This allows precise control over bus direction and data transparency, preventing bus contention in multi-master or bidirectional bus architectures.
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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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