SN74ALS874BDWR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The SN74ALS874BDWR is a dual 4-bit D-type edge-triggered flip-flop IC from Texas Instruments in the Advanced Low-power Schottky (ALS) logic family, featuring independent control with clear function and a 24-pin SOIC package. It operates with a 50 pF load capacitance and serves as a high-speed bus driver register for digital data latching and pipeline buffering. Available from authorized distributors worldwide with competitive pricing and global shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 24
- Lifecycle
- ACTIVE
- Datasheet
- SN74ALS874BDWR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.6343(MOQ 50)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual 4-bit D-type edge-triggered flip-flop with independent clear for precise synchronous data capture and pipeline register applications
- Advanced Low-power Schottky (ALS) family providing improved speed-power efficiency over standard TTL and LS logic
- 24-pin SOIC (R-PDSO-G24) surface-mount package supporting high-density PCB layouts in bus-oriented digital systems
- Independent control architecture allowing each 4-bit register to be clocked and cleared separately for maximum design flexibility
Applications
The SN74ALS874BDWR is used as a bus interface register and pipeline latch in high-speed digital systems such as microprocessor address/data bus buffering, memory controllers, and programmable logic interface circuits. Its dual 4-bit structure with independent control allows flexible partitioning of 8-bit buses into two independently managed nibbles. The ALS logic family's combination of speed and low power makes it well suited for industrial computing, telecommunications line cards, and embedded bus architectures.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | WITH CLEAR |
| Control Type | INDEPENDENT CONTROL |
| Count Direction | UNIDIRECTIONAL |
| Family | ALS |
| JESD-30 Code | R-PDSO-G24 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Max Frequency@Nom-Sup | 30000000Hz |
| Max I(ol) | 0.024A |
| Number of Bits | 4 |
| Number of Functions | 8 |
| 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) | 31mA |
| Prop. Delay@Nom-Sup | 14ns |
| Propagation Delay (tpd) | 14ns |
| 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 | TTL |
| Temperature Grade | COMMERCIAL |
| 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 |
| Trigger Type | POSITIVE EDGE |
| 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
Compatible alternatives and drop-in replacements for SN74ALS874BDWR:
Frequently Asked Questions
What is the function of the SN74ALS874BDWR and how many flip-flops does it contain?
The SN74ALS874BDWR contains two independent 4-bit D-type edge-triggered flip-flop registers, totaling 8 flip-flops. Each 4-bit section has its own clock and clear inputs, enabling synchronized data capture and independent reset of each nibble in bus interface and pipeline register applications.
What logic family is the SN74ALS874BDWR part of and what are its advantages?
The SN74ALS874BDWR belongs to the Advanced Low-power Schottky (ALS) TTL logic family, which delivers faster propagation speeds than standard LS logic while maintaining lower power consumption than standard TTL. The ALS family is ideal for designs that require a balance of high-speed operation and energy efficiency in bus-driving applications.
What package does the SN74ALS874BDWR use and is it RoHS compliant?
The SN74ALS874BDWR is housed in a 24-pin SOIC package (JESD-30 code R-PDSO-G24). It is RoHS compliant with a Pb-free code of 'Yes' and JESD-609 code e4, confirming it meets lead-free environmental requirements. The SOP24 surface-mount package simplifies automated PCB assembly.
What is the specified load capacitance for the SN74ALS874BDWR?
The SN74ALS874BDWR is characterized with a load capacitance (CL) of 50 pF. This value is used in timing characterization; actual propagation delay will increase if the PCB trace and fanout capacitance exceeds this specification, so designers should account for board parasitics in timing analysis.
What are typical applications for the SN74ALS874BDWR in digital system design?
The SN74ALS874BDWR is commonly used in microprocessor bus latching, memory address pipeline registers, and FPGA/CPLD interface buffering. Its dual 4-bit structure with clear and independent control makes it well suited for data width partitioning in 8-bit buses, state machine output registers, and data synchronization in digital communication backplanes.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 50+ | $1.7864 | $89.32 |
| 150+ | $1.7103 | $256.55 |
| 250+ | $1.6343 | $408.58 |
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