My Inquiry
My Account
Texas Instruments 74FCT2374CTSOCTE4
- Part No.:
- 74FCT2374CTSOCTE4
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
74FCT2374CTSOCTE4.pdf
- Description:
- IC FF D-TYPE SNGL 8BIT 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,677
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74FCT2374CTSOCTE4 from Texas Instruments is an octal edge-triggered D-type flip-flop with 3-state outputs, designed for high-speed bus-oriented applications. It features 5.2 ns typical propagation delay (tPLH/tPHL), 25-Ω integrated output series resistors to suppress transmission-line reflections, 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 74FCT2374CTSOCTE4 datasheet, 74FCT2374CTSOCTE4 pinout, 74FCT2374CTSOCTE4 application, or 74FCT2374CTSOCTE4 equivalent, key selection criteria include its 3-state bus interface capability, TTL-compatible input thresholds, matched rise/fall times, and guaranteed 250-MHz switching rate under load.
Technical Context
The 74FCT2374CTSOCTE4 implements eight independent D-type latches triggered on the low-to-high transition of a common buffered clock (CP). Each flip-flop stores its respective D-input state meeting 1.5 ns setup and 1 ns hold time requirements. Output-enable (OE) controls all eight outputs simultaneously, placing them in high-impedance when asserted high.
Its internal edge-rate control circuitry and 25-Ω on-die series termination resistors reduce signal overshoot and ground bounce. The device supports Ioff, disabling outputs and blocking reverse current flow when VCC = 0 V - enabling safe hot-insertion and partial power-down in mixed-supply systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay (tPLH/tPHL) | 5.2 ns max - ensures timing compliance in 200+ MHz synchronous bus systems |
| Output Drive | ±15 mA - sufficient to drive 50-pF loads at full speed without external buffers |
| Supply Voltage Range | 4.75–5.25 V - compatible with regulated 5-V TTL/CMOS logic rails |
| Ioff Current | ±1 µA at VCC = 0 V - prevents backflow damage during live insertion or power sequencing |
| Input Thresholds | VIL = 0.8 V, VIH = 2.0 V - fully interoperable with standard TTL input levels |
| Output Series Resistance | 25 Ω typ - reduces EMI and ringing on PCB traces up to 15 cm long |
| ESD Protection | 2000-V HBM - exceeds JEDEC JESD22-A114A for robust handling in manufacturing |
Pinout & Package
74FCT2374CTSOCTE4 is housed in a 20-pin SOIC package (DW package drawing), 7.6 mm × 12.8 mm footprint, 2.65 mm max height, RoHS-compliant with NiPdAu finish and MSL Level-1 rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE) | Output Enable | Active-low global control: drives all Q outputs to high-Z when high |
| 2–9 (O0–O7) | 3-State Outputs | Octal registered data outputs with 25-Ω series termination |
| 10 (GND) | Ground | Reference return path for logic and I/O circuits |
| 11 (VCC) | Power Supply | +5 V supply rail; decoupling required within 10 mm |
| 12–19 (D0–D7) | Data Inputs | Edge-triggered D inputs synchronized to CP rising edge |
| 20 (CP) | Buffered Clock | Low-skew, internally buffered clock input with hysteresis |
Key Features
| Feature | Design Value |
|---|---|
| On-die 25-Ω series termination | Eliminates need for external series resistors on each output trace, reducing BOM count and layout area |
| Ioff partial-power-down support | Enables safe operation in hot-swap backplanes and multi-rail systems where VCC may be unpowered while signals remain active |
| Matched tPLH/tPHL | Ensures symmetrical edge timing critical for DDR-style capture and clock-domain crossing integrity |
| TTL-compatible input thresholds | Accepts legacy 5-V TTL outputs directly without level-shifting, simplifying migration from older FCT/F logic families |
| 250-MHz typical switching rate | Validated performance margin for sustained 100-MHz bus clocking with setup/hold safety |
Applications
| Industrial PLC Backplane Bus | Automotive Body Control Module |
|---|---|
Use Scenario: Interfacing microcontroller GPIOs to a 5-V parallel control bus with 15-cm trace lengths and multiple drop points. IC Role / Device Role / Timing Role: Octal register buffering and bus isolation with precise clock-edge sampling and 3-state contention management. Use Value: Integrated 25-Ω termination eliminates reflection-induced glitches on long traces, improving noise immunity in electrically noisy engine bays. | Use Scenario: Latching sensor status bits (door open/closed, seatbelt fastened) before multiplexed transmission over CAN gateway. IC Role / Device Role / Timing Role: Synchronized data capture and temporary storage with controlled bus release via OE. Use Value: Ioff protection prevents backfeed into unpowered MCU domains during battery disconnect events, satisfying ISO 16750-2 transient requirements. |
| Legacy Test Equipment Interface | Medical Diagnostic Data Acquisition |
Use Scenario: Adapting vintage GPIB or ISA-bus peripherals to modern FPGA-based controllers using 5-V tolerant I/O banks. IC Role / Device Role / Timing Role: Level-translating, timing-aligned register between legacy TTL subsystems and synchronous digital logic. Use Value: Guaranteed 5.2 ns propagation delay enables cycle-accurate timing reconstruction of asynchronous strobe/data handshakes. | Use Scenario: Capturing parallel ADC outputs (e.g., 8-bit SAR converters) in real-time patient monitoring hardware with strict EMI limits. IC Role / Device Role / Timing Role: High-fidelity, low-noise data latching prior to serialization or DMA transfer. Use Value: Edge-rate control and matched rise/fall times minimize radiated emissions below 150 MHz, aiding IEC 60601-1-2 Class B compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal D-type register applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74FCT374TNSR | Same 20-pin SOIC package; identical pinout but lacks integrated 25-Ω series resistors and Ioff | Requires external termination resistors; not suitable for partial-power-down systems | Select only if cost sensitivity outweighs noise reduction and hot-swap requirements |
| 74ACT273SCX | Higher VCC range (4.5–5.5 V); no Ioff; 10 ns max tPD; CMOS input thresholds (VIH = 3.5 V) | Incompatible with TTL-level drivers; unsuitable for legacy 5-V bus interfaces | Prefer only in new designs with pure CMOS signaling and relaxed timing margins |
Compared with SN74FCT374TNSR and 74ACT273SCX, the 74FCT2374CTSOCTE4 uniquely combines on-die termination, Ioff, and TTL compatibility - making it the only choice for noise-sensitive, mixed-power-state 5-V bus systems requiring drop-in reliability.
Availability
74FCT2374CTSOCTE4 is available at Aetrix Electronics and suitable for industrial PLC backplanes, automotive body control modules, legacy test equipment interfaces, medical diagnostic data acquisition, and high-reliability 5-V bus applications requiring stable component supply across extended product lifecycles.
Supply support for 74FCT2374CTSOCTE4 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 global semiconductor leader delivering analog, embedded processing, and logic solutions for industrial, automotive, and communications markets.
The 74FCT2374CTSOCTE4 belongs to TI's FCT logic family - engineered specifically for high-speed, low-noise 5-V bus interfacing with emphasis on signal integrity, power sequencing robustness, and backward compatibility with legacy TTL systems.
FAQ
What is the maximum clock frequency supported by the 74FCT2374CTSOCTE4?
The 74FCT2374CTSOCTE4 is characterized for a typical switching rate of 250 MHz under loaded conditions. Its 5.2 ns maximum propagation delay and 1 ns minimum hold time enable reliable operation at sustained 100 MHz bus clocks with design margin. Actual maximum frequency depends on trace length, load capacitance, and power supply stability - verified per Figure 1 timing diagrams in the SCCS040A datasheet.
Does the 74FCT2374CTSOCTE4 support hot-swap or partial-power-down operation?
Yes, the 74FCT2374CTSOCTE4 includes Ioff circuitry that disables outputs and limits reverse current to ±1 µA when VCC = 0 V. This allows safe insertion into live backplanes and operation in systems where other rails remain active while VCC is off - a key requirement for automotive body control modules and industrial hot-swap architectures.
What is the purpose of the 25-Ω output series resistance in the 74FCT2374CTSOCTE4?
The 25-Ω on-die series resistance in the 74FCT2374CTSOCTE4 dampens transmission-line reflections on PCB traces, reducing overshoot, undershoot, and ground bounce. It eliminates the need for discrete 22–33 Ω resistors per output, saving board space and component cost while improving signal integrity on traces up to 15 cm long driving 50-pF loads.
Is the 74FCT2374CTSOCTE4 pin-compatible with older FCT-family registers like the 74FCT374?
Yes, the 74FCT2374CTSOCTE4 is functionally and pinout-compatible with the CY74FCT374T and SN74FCT374 series. It shares identical pin assignments, logic behavior, and timing architecture - allowing direct replacement in existing designs to improve noise performance without PCB changes, provided the 25-Ω termination and Ioff features are leveraged in the system design.
What are the absolute maximum ratings for the 74FCT2374CTSOCTE4 supply voltage and input voltage?
The 74FCT2374CTSOCTE4 has an absolute maximum supply voltage (VCC) of –0.5 V to +7 V and absolute maximum DC input voltage of –0.5 V to +7 V relative to GND. Exceeding these limits risks permanent damage. For reliable operation, VCC must be maintained within 4.75–5.25 V, and input voltages must stay within the recommended VIH ≥ 2.0 V and VIL ≤ 0.8 V ranges per the SCCS040A datasheet.
74FCT2374CTSOCTE4 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
74FCT2374CTSOCTE4 FAQ
1.How can I place an order for 74FCT2374CTSOCTE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74FCT2374CTSOCTE4 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 74FCT2374CTSOCTE4 reliable?
The price and inventory of 74FCT2374CTSOCTE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74FCT2374CTSOCTE4 is usually 5 days.
3.What payment methods are accepted for 74FCT2374CTSOCTE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74FCT2374CTSOCTE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74FCT2374CTSOCTE4?
74FCT2374CTSOCTE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74FCT2374CTSOCTE4 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 74FCT2374CTSOCTE4?
For technical support, including 74FCT2374CTSOCTE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74FCT2374CTSOCTE4 requirements.
6.How does Aetrix verify that 74FCT2374CTSOCTE4 is sourced from the original manufacturer or authorized distributors?
All 74FCT2374CTSOCTE4 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 74FCT2374CTSOCTE4 meets industry standards.
7.What is the process for return or replacement of 74FCT2374CTSOCTE4?
All 74FCT2374CTSOCTE4 units undergo pre-shipment inspection (PSI). If there is an issue with 74FCT2374CTSOCTE4, 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 74FCT2374CTSOCTE4 part is unused and in its original packaging.
Return procedure for 74FCT2374CTSOCTE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74FCT2374CTSOCTE4 Tags
-
SN74HC74DR
Texas Instruments
-
SN74HC74PWR
Texas Instruments
-
74LVC1G74GT,115
Nexperia USA Inc.
-
SN74LVC2G74DCUR
Texas Instruments
-
CD4013BM96
Texas Instruments
-
SN74HCT273PWR
Texas Instruments
-
SN74LVC1G74DCUR
Texas Instruments
-
SN74HC574DWR
Texas Instruments
-
74LVC1G74DC,125
Nexperia USA Inc.
-
SN74HC273DWR
Texas Instruments
-
SN74HCT574DWR
Texas Instruments
-
SN74LVC1G74DCTR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
