My Inquiry
My Account
Texas Instruments CY74FCT2374CTSOCE4
- Part No.:
- CY74FCT2374CTSOCE4
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
CY74FCT2374CTSOCE4.pdf
- Description:
- IC FF D-TYPE SNGL 8BIT 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,375
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CY74FCT2374CTSOCE4 from Texas Instruments is an octal edge-triggered D-type flip-flop with 3-state outputs, designed for high-speed bus-oriented data latching in 5-V TTL-compatible systems. It features 25-Ω on-chip output series resistors, 5.2 ns maximum propagation delay (tPLH/tPHL), 12 mA sink / 15 mA source drive strength, and Ioff support for partial-power-down operation. It is used in address/data bus buffering and registered I/O interfaces in industrial control and telecom backplanes.
For engineers reviewing the CY74FCT2374CTSOCE4 datasheet, CY74FCT2374CTSOCE4 pinout, CY74FCT2374CTSOCE4 application, or CY74FCT2374CTSOCE4 equivalent, key selection criteria include its 20-pin SOIC package, 3.3 V typical VOH level, matched rise/fall times, edge-rate control circuitry for noise suppression, and compatibility with FCT/F logic families.
Technical Context
This device implements eight independent D-type flip-flops sharing a common buffered clock (CP) and active-low output-enable (OE) control. Each flip-flop captures D-input state on the low-to-high CP transition, with setup time of 1.5 ns and hold time of 1 ns at VCC = 5 V.
Its 3-state outputs are driven by totem-pole buffers with integrated 25-Ω series termination, reducing transmission-line reflections. The Ioff circuit ensures outputs remain high-impedance during power-down, preventing backflow current when VCC = 0 V and output voltage reaches 4.5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay (tPLH/tPHL) | 5.2 ns max - enables reliable 200 MHz clock operation in synchronous bus systems |
| Output Drive Strength | 12 mA sink / 15 mA source - sufficient to drive standard 50-pF loads without external buffers |
| VOH / VOL | 3.3 V typ / 0.55 V max at 12 mA - ensures robust TTL and CMOS interface compatibility |
| Input Thresholds (VIH/VIL) | 2.0 V min / 0.8 V max - matches standard TTL logic levels for seamless integration |
| Supply Voltage Range | 4.75–5.25 V - tightly regulated 5-V operation with ±5% tolerance for stable timing margins |
| Ioff Leakage | ±1 µA at VCC = 0 V - prevents damaging current flow during hot-insertion or partial-power-down |
| ESD Protection | 2000-V HBM / 200-V MM / 1000-V CDM - exceeds JEDEC JESD22 standards for board-level reliability |
Pinout & Package
Package: 20-pin SOIC (DW package drawing), 7.6 mm × 12.6 mm body, 2.65 mm max height, RoHS-compliant NiPdAu finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE) | Active-low output enable | Drives all eight outputs to high-impedance when high; no effect on internal flip-flop states |
| 2–9 (O0–O7) | 3-state outputs | Registered data outputs with 25-Ω series resistance for reflection damping |
| 10 (GND) | Ground reference | Primary return path for logic and output currents; decoupling capacitor must be placed adjacent |
| 11 (VCC) | Power supply | 5-V supply input; requires local 0.1 µF ceramic decoupling per device |
| 12–19 (D0–D7) | Data inputs | Individual asynchronous D inputs feeding each flip-flop; TTL/CMOS compatible |
| 20 (CP) | Buffered clock input | Edge-triggered clock with internal buffer; low-to-high transition latches all D inputs simultaneously |
Key Features
| Feature | Design Value |
|---|---|
| On-chip 25-Ω output series resistors | Reduces signal overshoot/ringing on PCB traces up to 15 cm without external termination |
| Edge-rate control circuitry | Slows output edge transitions to limit di/dt-induced crosstalk and ground bounce in dense layouts |
| Matched rise/fall times | Ensures symmetrical waveform edges for clean clock distribution and reduced jitter accumulation |
| Ioff partial-power-down support | Allows safe insertion/removal in live backplanes while other system rails remain active |
| TTL-compatible input thresholds | Accepts standard 0.8 V/2.0 V logic levels without level-shifting, simplifying legacy system upgrades |
Applications
| Industrial PLC Backplane Interface | Telecom Line Card Data Register |
|---|---|
Use Scenario: Latching parallel address/data bus signals between microcontroller and peripheral modules in programmable logic controllers. IC Role / Device Role / Timing Role: Octal D-type register synchronizing burst-mode transfers across isolated 5-V domains with precise clock-edge alignment. Use Value: 5.2 ns propagation delay and 1.5 ns setup time ensure deterministic timing margins under 20 MHz bus clocks with 10 ns skew budgets. | Use Scenario: Capturing and holding configuration data from FPGA or DSP before routing to multiple line interface units (LIUs) in TDM-based access equipment. IC Role / Device Role / Timing Role: Registered I/O buffer providing glitch-free data staging with simultaneous 3-state control via shared OE signal. Use Value: 25-Ω series output termination suppresses reflections on 50-Ω trace runs to LIU ASICs, eliminating need for discrete resistors and saving PCB area. |
| Automotive Body Control Module Bus Isolation | Test Equipment Digital Pattern Generator |
Use Scenario: Isolating diagnostic communication lines between ECU main processor and CAN/LIN transceiver clusters during firmware updates. IC Role / Device Role / Timing Role: Bidirectional bus latch enabling safe hot-swap of transceiver modules while maintaining processor bus integrity. Use Value: Ioff protection prevents backfeed current into powered-down transceivers, meeting ISO 16750-2 load-dump survivability requirements. | Use Scenario: Generating synchronized 8-bit stimulus patterns for IC functional testing with precise edge alignment and variable enable gating. IC Role / Device Role / Timing Role: High-speed pattern register clocked by test controller, with OE used for cycle-accurate pattern blanking. Use Value: Matched rise/fall times (<1 ns deviation) and 200 MHz switching capability support sub-5 ns timing resolution in ATE environments. |
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 |
|---|---|---|---|
| SN74FCT374NSR | Same 20-pin SOIC package; identical pinout; 6.5 ns max tPD (slower); no on-chip 25-Ω resistors | Lacks built-in termination; requires external series resistors for noise-sensitive layouts | Select when cost sensitivity outweighs reflection control needs and layout allows discrete termination |
| 74ACT374SCX | 5-V ACT family; 10 ns max tPD; higher ICC (2.5 mA typical); no Ioff or edge-rate control | Higher static power; unsuitable for partial-power-down systems; less noise-immune output stage | Choose only for legacy ACT-based designs where timing slack permits slower speed and no hot-swap requirement |
Compared with SN74FCT374NSR and 74ACT374SCX, CY74FCT2374CTSOCE4 delivers superior noise immunity via integrated 25-Ω resistors and edge-rate control, supports safer hot-plug operation via Ioff, and achieves tighter timing margins with 5.2 ns propagation delay-making it optimal for high-density, high-reliability 5-V bus interfaces.
Availability
CY74FCT2374CTSOCE4 is available at Aetrix Electronics and suitable for industrial PLC backplanes, telecom line card data registers, automotive body control modules, and ATE pattern generators requiring stable component supply and long-term lifecycle continuity.
Supply support for CY74FCT2374CTSOCE4 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 connectivity solutions for industrial, automotive, and communications markets.
The CY74FCT2374CTSOCE4 belongs to TI's FCT logic family, engineered specifically for high-speed, low-noise 5-V digital interfacing in mission-critical systems where signal integrity and power sequencing robustness are essential.
FAQ
What is the maximum clock frequency supported by CY74FCT2374CTSOCE4?
CY74FCT2374CTSOCE4 supports a typical switching rate of 250 MHz and is characterized for reliable operation up to 200 MHz in standard 50-pF load conditions. Its 5.2 ns maximum propagation delay and 1.5 ns setup time allow stable synchronization at 200 MHz with ≥1 ns timing margin, assuming proper PCB layout and decoupling.
Does CY74FCT2374CTSOCE4 require external pull-up or pull-down resistors on unused inputs?
Yes - all unused inputs of CY74FCT2374CTSOCE4 must be held at VCC or GND to ensure predictable logic behavior and prevent floating nodes from inducing excessive ICC or metastability. This requirement is specified in TI's recommended operating conditions and applies to both D and CP inputs; OE may be tied permanently low if 3-state control is not needed.
How does the Ioff feature of CY74FCT2374CTSOCE4 protect the system during partial power-down?
The Ioff circuitry in CY74FCT2374CTSOCE4 disables output drivers when VCC = 0 V, limiting leakage current to ±1 µA even with output voltages up to 4.5 V. This prevents reverse current flow from powered downstream circuits into the unpowered device, protecting both CY74FCT2374CTSOCE4 and connected components during hot-swap or staggered power sequencing.
Can CY74FCT2374CTSOCE4 directly replace CY74FCT374T in an existing design?
Yes - CY74FCT2374CTSOCE4 is functionally and pinout-compatible with CY74FCT374T and offers improved noise characteristics due to integrated 25-Ω output resistors and edge-rate control. No PCB changes are required; however, verify that the 5.2 ns propagation delay meets timing closure in the target clock domain, as CY74FCT374T has 6.5 ns max tPD.
What is the thermal performance of CY74FCT2374CTSOCE4 in its SOIC package?
CY74FCT2374CTSOCE4 in the 20-pin SOIC (DW) package has a junction-to-ambient thermal impedance (θJA) of 58°C/W under standard JEDEC test conditions. At full drive (12 mA per output × 8 channels), total power dissipation remains below 100 mW, resulting in <6°C junction-to-ambient rise - well within safe operating limits for industrial ambient temperatures up to 85°C.
CY74FCT2374CTSOCE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74FCT
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- 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:
- 250 MHz
- 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
CY74FCT2374CTSOCE4 FAQ
1.How can I place an order for CY74FCT2374CTSOCE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY74FCT2374CTSOCE4 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 CY74FCT2374CTSOCE4 reliable?
The price and inventory of CY74FCT2374CTSOCE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY74FCT2374CTSOCE4 is usually 5 days.
3.What payment methods are accepted for CY74FCT2374CTSOCE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY74FCT2374CTSOCE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY74FCT2374CTSOCE4?
CY74FCT2374CTSOCE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY74FCT2374CTSOCE4 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 CY74FCT2374CTSOCE4?
For technical support, including CY74FCT2374CTSOCE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY74FCT2374CTSOCE4 requirements.
6.How does Aetrix verify that CY74FCT2374CTSOCE4 is sourced from the original manufacturer or authorized distributors?
All CY74FCT2374CTSOCE4 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 CY74FCT2374CTSOCE4 meets industry standards.
7.What is the process for return or replacement of CY74FCT2374CTSOCE4?
All CY74FCT2374CTSOCE4 units undergo pre-shipment inspection (PSI). If there is an issue with CY74FCT2374CTSOCE4, 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 CY74FCT2374CTSOCE4 part is unused and in its original packaging.
Return procedure for CY74FCT2374CTSOCE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY74FCT2374CTSOCE4 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…
