SN74LVTH16374-EP - 3.3V 16-Bit D Flip-Flop EP | Texas Instruments
MPN: SN74LVTH16374-EP β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 10 | $1.66 | $16.60 |
| 100 | $1.38 | $138.00 |
| 500 | $1.15 | $575.00 |
| 1,000 | $0.98 | $980.00 |
Drop-in alternatives for SN74LVTH16374-EP β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
SN74LVTH16374DGGR
β Drop-Inπ Reference alternative (not in catalog)
SN74LVTH16374DL
β Drop-Inπ Reference alternative (not in catalog)
SN74LVTH16374-EP Maximum Ratings & Electrical Characteristics
| Function | 16-bit edge-triggered D-type flip-flop with 3-state outputs |
| Logic Family | LVTH (3.3-V ABT) |
| Supply Voltage (VCC) | 3.3 V |
| TTL Interface Capability | Compatible with 5-V system environment |
| Trigger Type | Positive edge-triggered |
| Output Type | 3-state |
| Number of Bits | 16 |
| Qualification | Enhanced Product (EP) - defense, aerospace, medical |
| Technology | BiCMOS (ABT) |
| Mounting Type | Surface Mount |
| Package | [DATA_NEEDED: package suffix and dimensions] |
| Operating Temperature | [DATA_NEEDED: operating temperature range] |
| Max Clock Frequency | [DATA_NEEDED: fmax] |
| Output Drive Current | [DATA_NEEDED: IOL/IOH] |
| Quiescent Current | [DATA_NEEDED: ICC] |
| RoHS Status | [DATA_NEEDED: RoHS status] |
| MSL Level | [DATA_NEEDED: MSL] |
SN74LVTH16374-EP Pin Configuration
| Pin 1 | OE β Output enable (common, 3-state control) - [DATA_NEEDED: exact pin number] |
| Pin 2 | CP β Clock input (common, positive-edge-triggered) - [DATA_NEEDED: exact pin number] |
| Pin 3 | 1D β Data input flip-flop 1 - [DATA_NEEDED: exact pin number] |
| Pin 4 | 1Q β 3-state output flip-flop 1 - [DATA_NEEDED: exact pin number] |
| Pin 5 | VCC β 3.3-V power supply - [DATA_NEEDED: exact pin number] |
| Pin 6 | GND β Ground - [DATA_NEEDED: exact pin number] |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
SN74LVTH16374-EP is suitable for 6 applications: Defense and Avionics Pipeline Registers, Medical Imaging Data Latching, Industrial Control Bus Isolation, Test and Measurement Instrumentation, Communications and Networking Equipment, Data Acquisition Synchronization.
Defense and Avionics Pipeline Registers
The SN74LVTH16374-EP captures 16 parallel data bits on a common rising clock edge, providing clean pipeline staging in flight computers, radar signal processors, and missile guidance electronics. Its EP qualification supplies the change-notification and reliability documentation these programs require, while LVTH BiCMOS technology delivers fast, balanced edge rates at 3.3-V VCC with TTL interface capability to 5-V legacy subsystems. The 3-state outputs let multiple register banks share a single 16-bit data bus, reducing connector and backplane pin count. Pipeline designers should budget clock-to-output delay and ensure the common clock meets setup/hold requirements at temperature extremes.
Recommended
Medical Imaging Data Latching
In ultrasound beamformers, MRI receiver chains, and digital X-ray acquisition boards, the SN74LVTH16374-EP latches digitized sample words between ADC output stages and processing FPGAs. The EP qualification covers medical end-use documentation requirements, while 3.3-V LVTH logic keeps dynamic power low across sixteen channels. Its TTL-interface capability eases integration with 5-V legacy front-end circuitry. The 3-state outputs enable multiplexed access to a shared backplane bus between acquisition modules. Designers should keep trace lengths short on clock lines to limit skew across the sixteen flip-flops and add 0.1-uF local decoupling per supply pin.
Recommended
Industrial Control Bus Isolation
Factory automation and motor-control backplanes use the SN74LVTH16374-EP to buffer and isolate 16-bit address/data buses between controllers and I/O modules. The 3-state outputs with common OE allow a processor to tri-state the bus during DMA transfers or hand-off to another master, while the positive edge-triggered clocking guarantees glitch-free registered handshakes versus level-sensitive latches. LVTH balanced drive supports heavily loaded backplanes, and 5-V TTL interface capability bridges older PLC I/O cards to modern 3.3-V logic. Verify bus capacitance stays within family drive limits for reliable switching on long backplane runs.
Recommended
Test and Measurement Instrumentation
Bench instruments, automated test equipment, and logic analyzers use the SN74LVTH16374-EP as a registered capture stage for parallel stimulus/response data. The sixteen flip-flops align a full 16-bit word to a single sampling clock, minimizing channel-to-channel skew in timing measurements, while the 3-state outputs allow the capture bank to be disconnected during stimulus driving. LVTH BiCMOS speed preserves signal timing fidelity, and EP qualification documentation supports instrument programs with defense/aerospace traceability requirements. Designers should pay attention to clock distribution symmetry across multiple devices to maintain measurement channel alignment.
Recommended
Communications and Networking Equipment
Line cards, baseband boards, and telecom backplane adapters use the SN74LVTH16374-EP to register parallel control and status buses between PHY devices, FPGAs, and microcontrollers. The common-clock architecture synchronizes sixteen bits atomically, avoiding word tearing during read-modify-write operations on status registers, and the 3-state outputs support shared backplane signaling between redundant line cards. The 3.3-V LVTH family's TTL compatibility eases retrofit into 5-V legacy telecom racks. Engineers should evaluate output undershoot on long backplane stubs and consider series damping resistors to control ringing at high clock rates.
Recommended
Data Acquisition Synchronization
Multi-channel DAQ systems use the SN74LVTH16374-EP to latch channel-select and range-control words in synchronism with the sampling clock, ensuring all channels switch state between conversions rather than during them. This eliminates mid-conversion configuration glitches that corrupt sampled data, a common failure mode when using unregistered logic. The 16-bit width matches typical SPI-to-parallel expansion needs, and 3-state outputs allow a microcontroller to share the control bus with an FPGA. The EP qualification suits DAQ products sold into defense and medical test markets where such documentation is contractually required.
Recommended
Recommended Products Summary
Engineering reference data for SN74LVTH16374-EP β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | SN74LVTH16374DGGR | SN74LVTH16374DL | CD74HC374 |
|---|---|---|---|---|
| Package | [DATA_NEEDED: package] | SSOP-56 (DGG) | LQFP-56 (DL) | [DATA_NEEDED] |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Bit Width | 16 | 16 | 16 | 8 |
| Trigger Type | Positive edge-triggered | Positive edge-triggered | Positive edge-triggered | Positive edge-triggered |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 2-6 V |
| Output Type | 3-state | 3-state | 3-state | 3-state |
| EP Qualification | Yes (defense, aerospace, medical) | No | No | No |
| 5-V TTL Interface | Yes | Yes | Yes | CMOS levels |
Key Differentiators
- EP qualification for defense, aerospace, and medical (vs SN74LVTH16374DGGR)
- 16-bit width in one device (vs CD74HC374)
- 5-V TTL interface capability at 3.3-V VCC (vs SN74LVTH16374DL)
Design Notes
Decouple VCC with at least one 0.1-uF ceramic capacitor placed within 5 mm of the supply pin, plus one bulk 10-uF capacitor per device cluster. LVTH BiCMOS logic draws dynamic shoot-through current on every output transition across sixteen outputs simultaneously, producing fast current spikes on VCC; local decoupling prevents ground bounce that could violate clock setup/hold margins. Tie all unused inputs to VCC or GND - never leave them floating.
Distribute the common clock (CP) with equal-length traces to minimize skew across all sixteen flip-flops and across multiple devices in a pipeline. Because the 3-state outputs can drive heavily loaded buses, add 22-33 ohm series damping resistors on long or stubbed bus lines to control ringing and undershoot. The OE control should be driven synchronously to avoid bus contention windows when switching bus masters.
The most common substitution error is ignoring the -EP qualification requirement: the electrical part is identical to the standard SN74LVTH16374, but defense, aerospace, and medical programs typically mandate EP documentation and change-notification status. Substituting a non-EP part without program approval can fail qualification audits. Conversely, commercial designs paying the EP premium unnecessarily can save cost by using the standard DGGR variant.
Compliance Information
Compliance data not present in provided web results; verify on TI product page quality/environmental section.
