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Texas Instruments 74FCT2374CTSOCTG4
- Part No.:
- 74FCT2374CTSOCTG4
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
74FCT2374CTSOCTG4.pdf
- Description:
- IC FF D-TYPE SNGL 8BIT 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,973
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Product details
Overview
74FCT2374CTSOCTG4 from Texas Instruments is an octal edge-triggered D-type flip-flop with 3-state outputs, designed for high-speed bus interface applications. It features 5.2 ns propagation delay (tPLH/tPHL), 25-Ω integrated output series resistors for reflection noise suppression, and Ioff support for partial-power-down operation. It operates at 4.75–5.25 V and delivers ±15 mA output drive capability.
For engineers reviewing the 74FCT2374CTSOCTG4 datasheet, 74FCT2374CTSOCTG4 pinout, 74FCT2374CTSOCTG4 application, or 74FCT2374CTSOCTG4 equivalent, key selection criteria include its 3-state bus-driving capability, TTL-compatible input thresholds, matched rise/fall times, and guaranteed 250-MHz switching rate under load.
Technical Context
The 74FCT2374CTSOCTG4 implements eight independent D-type latches synchronized to the low-to-high transition of a common buffered clock (CP) input. Each flip-flop samples its dedicated Dn input only on CP↑, meeting 1.5 ns setup and 1 ns hold time requirements at 5 V.
Its 3-state outputs are controlled by a shared OE input; when OE is low, registered data appears on O0–O7; when OE is high, all outputs enter high-impedance state without affecting internal register states. The device integrates edge-rate control circuitry and on-die 25-Ω series termination to minimize transmission-line reflections in stub-loaded bus topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay (tPLH/tPHL) | 5.2 ns max - ensures timing closure in 100+ MHz synchronous bus systems |
| Output Drive | ±15 mA - supports direct connection to 50-Ω transmission lines and fan-out to ≥10 FCT loads |
| Supply Voltage Range | 4.75–5.25 V - compatible with regulated 5-V TTL/CMOS mixed-signal systems |
| Ioff Current | ±1 µA at VCC = 0 V - prevents backflow during hot-insertion or partial power-down |
| Input Thresholds | VIL = 0.8 V, VIH = 2.0 V - fully interoperable with standard TTL logic families |
| ESD Protection | 2000-V HBM - exceeds JEDEC JESD22-A114A for robust board-level handling |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded control and communications equipment |
Pinout & Package
74FCT2374CTSOCTG4 is housed in a 20-pin SOIC (DW) package, 7.5 mm × 12.8 mm body size, 2.65 mm max height, RoHS-compliant with NiPdAu lead finish and moisture sensitivity level (MSL) Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4–5, 7–8, 10–11, 13–14, 16–17 | D0–D7, O0–O7 | Data inputs and 3-state outputs - bidirectional bus interface points with integrated 25-Ω series resistance |
| 3 | OE | Output-enable control - active-low global enable for all eight outputs; no effect on internal register state |
| 18 | CP | Buffered clock input - edge-triggered on low-to-high transition; drives all eight registers synchronously |
| 10, 20 | GND, VCC | Power terminals - decoupling required within 10 mm of pins 10 and 20 per TI layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 25-Ω Output Series Resistors | Reduces signal reflections on PCB traces up to 15 cm without external termination components |
| Matched Rise/Fall Times | Ensures <10% duty-cycle distortion on clocked data buses, critical for DDR and multiplexed address/data paths |
| TTL-Compatible Input Levels | Accepts standard TTL VIH/VIL thresholds while operating from 5-V supply - eliminates level-shifter requirements |
| Ioff Partial-Power-Down Support | Enables safe insertion/removal in live backplanes and hot-swap controller interfaces without damaging adjacent devices |
| Edge-Rate Controlled Outputs | Guarantees monotonic transitions with <1 ns slew rate variation - suppresses simultaneous switching noise (SSN) |
Applications
| Industrial PLC Backplane Interface | Automotive Body Control Module Bus |
|---|---|
Use Scenario: Interfacing microcontroller GPIOs to a 16-bit parallel control bus in a programmable logic controller rack. IC Role / Device Role / Timing Role: Octal register buffers data from CPU to peripheral modules with precise clock-edge synchronization and bus isolation via 3-state control. Use Value: Eliminates external series resistors and level shifters while maintaining <5 ns timing margin across –40°C to +85°C ambient. | Use Scenario: Latching sensor status bits (door open/closed, seatbelt fastened) before transmission over LIN or CAN sub-bus. IC Role / Device Role / Timing Role: Synchronized sampling and temporary storage of discrete vehicle signals prior to serial encoding and transmission. Use Value: Ioff protection prevents current leakage into unpowered LIN transceivers during sleep mode, extending battery life. |
| Telecom Line Card Data Buffering | Test Equipment Digital Pattern Generator |
Use Scenario: Driving multiple daughter cards from a central FPGA-based timing engine in a modular telecom switch chassis. IC Role / Device Role / Timing Role: High-fanout, low-skew register stage that isolates FPGA outputs from variable capacitive loads of up to 100 pF per line. Use Value: On-die 25-Ω resistors maintain signal integrity across 8-inch backplane traces without requiring PCB-level impedance tuning. | Use Scenario: Generating repeatable 8-bit digital stimulus waveforms synchronized to a master test clock in automated boundary-scan testers. IC Role / Device Role / Timing Role: Edge-triggered waveform latch ensuring deterministic setup/hold timing relative to system clock edges. Use Value: 1.5 ns minimum setup time enables reliable operation at 200 MHz pattern rates with commercial-grade clock jitter. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal 3-state D-type register applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74FCT2374CTSOCT | Same pinout, identical electrical specs, but marked per TI's standard SN74 prefix instead of CY74; same DW package and tape-and-reel packaging. | No functional difference - used interchangeably in new designs where TI branding preference applies. | Select when sourcing from TI-distributed channels requiring SN74-series part numbering convention. |
| 74ACT273SCX | Non-3-state version with push-pull outputs; lacks OE pin and Ioff; higher ICC (1.2 mA typical vs. 0.2 mA); no integrated series resistors. | Suitable only for point-to-point or low-fanout loads; requires external termination and cannot share bus lines. | Choose only if 3-state operation and bus contention avoidance are not required, and lower static power is secondary to cost. |
Compared with SN74FCT2374CTSOCT, the 74FCT2374CTSOCTG4 offers identical performance and compatibility but reflects TI's legacy CY74 marking scheme; versus 74ACT273SCX, it adds essential bus arbitration capability, reflection control, and partial-power-down safety - making it the sole choice for multi-drop industrial and telecom backplanes.
Availability
74FCT2374CTSOCTG4 is available at Aetrix Electronics and suitable for industrial PLC backplane interfaces, automotive body control modules, telecom line card buffering, and test equipment digital pattern generation requiring stable component supply and long-term lifecycle assurance.
Supply support for 74FCT2374CTSOCTG4 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a U.S.-based semiconductor company founded in 1930, specializing in analog, embedded processing, and logic solutions for industrial, automotive, and communications markets.
The 74FCT2374CTSOCTG4 belongs to TI's FCT logic family - engineered for high-speed, low-noise 5-V bus interfacing with emphasis on signal integrity, power-down safety, and drop-in replacement for legacy TTL and F logic systems.
FAQ
What is the maximum clock frequency supported by the 74FCT2374CTSOCTG4?
The 74FCT2374CTSOCTG4 is characterized for a typical switching rate of 250 MHz under loaded conditions. Its 5.2 ns maximum propagation delay (tPLH/tPHL) and 1.5 ns minimum setup time enable reliable operation at 200 MHz in well-terminated systems. Actual maximum frequency depends on PCB layout, load capacitance, and supply stability - TI recommends limiting clock edge rates to ≤1 V/ns for optimal noise performance.
Does the 74FCT2374CTSOCTG4 support hot-swap or partial-power-down operation?
Yes, the 74FCT2374CTSOCTG4 includes Ioff circuitry that disables outputs when VCC = 0 V, limiting reverse current to ±1 µA. This allows safe insertion into live backplanes or operation in systems where some rails are powered down while others remain active - a key requirement for modular industrial controllers and telecom line cards using the 74FCT2374CTSOCTG4.
How does the 25-Ω output series resistance in the 74FCT2374CTSOCTG4 improve signal integrity?
The 25-Ω on-die series resistors in the 74FCT2374CTSOCTG4 dampen transmission-line reflections caused by impedance mismatches between the IC output and PCB trace (typically 50–75 Ω). This reduces ringing and overshoot without requiring external resistors, enabling clean 5-V logic transitions across stub lengths up to 15 cm - directly improving timing margins and EMI performance in dense bus architectures using the 74FCT2374CTSOCTG4.
Is the 74FCT2374CTSOCTG4 pin-compatible with older 74FCT374 devices?
Yes, the 74FCT2374CTSOCTG4 is functionally and pinout-compatible with the CY74FCT374T and SN74FCT374, sharing identical 20-pin SOIC (DW) footprint, pin assignments, and logic behavior. It replaces those parts with enhanced noise characteristics due to edge-rate control and integrated termination - making the 74FCT2374CTSOCTG4 a direct drop-in upgrade for existing designs seeking improved signal integrity.
What are the recommended decoupling practices for the 74FCT2374CTSOCTG4?
TI specifies 0.1 µF ceramic decoupling capacitors placed within 10 mm of both VCC (pin 20) and GND (pin 10) of the 74FCT2374CTSOCTG4. For systems with multiple devices, add one 4.7 µF tantalum or ceramic bulk capacitor per 5–10 ICs. Avoid shared vias between VCC/GND pairs, and route decoupling traces directly to the pins - not through daisy-chained power planes - to maintain low-inductance paths critical for the 74FCT2374CTSOCTG4's 250-MHz switching capability.
74FCT2374CTSOCTG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74FCT
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Standard
- Type:
- D-Type
- Output Type:
- Tri-State, Non-Inverted
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Clock Frequency:
- -
- Max Propagation Delay @ V, Max CL:
- 5.2ns @ 5V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 15mA, 12mA
- Voltage - Supply:
- 4.75V ~ 5.25V
- Current - Quiescent (Iq):
- 200 µA
- Input Capacitance:
- 5 pF
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SOIC
74FCT2374CTSOCTG4 FAQ
1.How can I place an order for 74FCT2374CTSOCTG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74FCT2374CTSOCTG4 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 74FCT2374CTSOCTG4 reliable?
The price and inventory of 74FCT2374CTSOCTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74FCT2374CTSOCTG4 is usually 5 days.
3.What payment methods are accepted for 74FCT2374CTSOCTG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74FCT2374CTSOCTG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74FCT2374CTSOCTG4?
74FCT2374CTSOCTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74FCT2374CTSOCTG4 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 74FCT2374CTSOCTG4?
For technical support, including 74FCT2374CTSOCTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74FCT2374CTSOCTG4 requirements.
6.How does Aetrix verify that 74FCT2374CTSOCTG4 is sourced from the original manufacturer or authorized distributors?
All 74FCT2374CTSOCTG4 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 74FCT2374CTSOCTG4 meets industry standards.
7.What is the process for return or replacement of 74FCT2374CTSOCTG4?
All 74FCT2374CTSOCTG4 units undergo pre-shipment inspection (PSI). If there is an issue with 74FCT2374CTSOCTG4, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 74FCT2374CTSOCTG4 part is unused and in its original packaging.
Return procedure for 74FCT2374CTSOCTG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74FCT2374CTSOCTG4 Tags
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