74ACT11543DWR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The 74ACT11543DWR is an 8-bit octal latched bus transceiver from Texas Instruments in the ACT logic family, featuring independent output enables for each direction and a master latch control. It provides bidirectional data transfer with registered outputs, 50pF load capacitance, and is housed in a 28-pin SOIC package for high-speed digital bus interface applications.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- OBSOLETE
- Datasheet
- 74ACT11543DWR 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
- 8-bit bidirectional latched bus transceiver with registered outputs
- Independent output enable control for each bus direction
- Master latch control for simultaneous latching of all 8 bits
- ACT logic family for 5V operation with TTL-compatible inputs
- 50pF load capacitance for high-speed bus driving
- 28-pin SOIC package for standard surface-mount assembly
Applications
The 74ACT11543DWR is used in bidirectional data bus interfaces between processors and memory, between FPGA and peripheral devices, and in backplane data communication systems where registered data latching is required. It is also deployed in industrial control systems and embedded computing boards where independent directional control and data hold functionality are needed for reliable bus arbitration.
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-G28 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | REGISTERED BUS TRANSCEIVER |
| Max I(ol) | 0.024A |
| Number of Bits | 8 |
| Number of Functions | 1 |
| Number of Ports | 2 |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP28,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Prop. Delay@Nom-Sup | 12.1ns |
| Propagation Delay (tpd) | 13.2ns |
| 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 Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for 74ACT11543DWR:
Frequently Asked Questions
What is the maximum output sink current (I(ol)) of the 74ACT11543DWR?
The 74ACT11543DWR has a maximum output sink current (I(ol)) of 24 mA (0.024 A). This allows it to drive TTL-compatible loads reliably in high-speed digital bus interface applications.
What load capacitance is the 74ACT11543DWR specified to operate with?
The 74ACT11543DWR is specified for operation with a load capacitance (CL) of 50 pF. This is a standard test condition used to characterize its propagation delay and switching performance in the ACT logic family.
How many bits does the 74ACT11543DWR support and what package does it come in?
The 74ACT11543DWR is an 8-bit (octal) bidirectional bus transceiver housed in a 28-pin SOIC (Small Outline Integrated Circuit) package, designated by the JESD-30 code R-PDSO-G28. The 28-pin package accommodates the independent output enable and master latch control signals required for its registered transceiver architecture.
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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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