SN74ABT843DWR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments SN74ABT843DWR is a 9-bit bus-interface D-type latch with clear and preset in a 24-pin SOIC package. ABT family device with active-low enable, 50pF load capacitance rating, and unidirectional bus drive capability for high-speed data bus applications. Available from stock worldwide with competitive pricing and fast shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 24
- Lifecycle
- ACTIVE
- Datasheet
- SN74ABT843DWR 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
- 9-bit D-type latch with clear and preset enables flexible bus-interface data storage and flow control
- ABT logic family provides high-speed switching performance with excellent output drive for 50pF bus loads
- Active-low enable control with unidirectional bus drive simplifies address and data bus interfacing in backplane designs
- 24-pin SOIC surface mount package offers compact footprint with easy soldering for automated PCB assembly
Applications
The SN74ABT843DWR is used in high-performance computer systems and embedded controllers for latching and buffering 9-bit data words on address and data buses, providing reliable signal hold capability between bus cycles. It is also employed in memory interface boards, FPGA peripheral circuits, and backplane data buses where fast switching ABT logic with clear and preset control is required. Industrial automation controllers and communications equipment use this device to synchronize data transfers between different timing domains on wide bus architectures.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | WITH CLEAR AND PRESET |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | ABT |
| JESD-30 Code | R-PDSO-G24 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Max I(ol) | 0.064A |
| Number of Bits | 9 |
| Number of Functions | 9 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP24,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 34mA |
| Prop. Delay@Nom-Sup | 7.2ns |
| Propagation Delay (tpd) | 6.9ns |
| Qualification Status | Not Qualified |
| Screening Level | MIL-PRF-38535 |
| 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 (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| 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 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Taiwan |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many bits does the SN74ABT843DWR latch?
The SN74ABT843DWR is a 9-bit latch, storing and buffering 9 bits of data simultaneously. This is particularly useful for bus-interface applications where a byte plus a parity bit need to be latched together in memory and microprocessor systems.
What logic family does the SN74ABT843DWR belong to?
The SN74ABT843DWR belongs to the ABT (Advanced BiCMOS Technology) logic family, which offers high-speed switching performance, strong output drive capability, and compatibility with both TTL and CMOS input logic levels.
What package does the SN74ABT843DWR come in?
The SN74ABT843DWR is available in a 24-pin SOIC (Small Outline Integrated Circuit) surface mount package, widely used in automated PCB assembly and offering a compact layout for high-density digital system designs.
Does the SN74ABT843DWR have clear and preset inputs?
Yes, the SN74ABT843DWR includes both clear and preset inputs, providing additional control over the latch output states. These inputs allow the stored data to be forced to known logic levels independently of the data inputs.
What is the enable control configuration of the SN74ABT843DWR?
The SN74ABT843DWR uses an active-low enable control input, which means a logic low signal activates the latch to capture input data. When the enable is high, the latch retains its previously stored state, holding the output steady on the bus.
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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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