My Inquiry
My Account
Texas Instruments SN74AHC16374DGVR
- Part No.:
- SN74AHC16374DGVR
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 48-TFSOP (0.173", 4.40mm Width)
- Datasheet:
-
SN74AHC16374DGVR.pdf
- Description:
- IC FF D-TYPE DUAL 8BIT 48TVSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,351
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SN74AHC16374 from Texas Instruments is a 16-bit edge-triggered D-type flip-flop with 3-state outputs in a 48-pin TVSOP (DGV) package, operating from 2 V to 5.5 V. It features dual 8-bit sections with independent clock and output-enable controls, ±25 mA output drive, 5 ns minimum clock pulse width at 5 V, and supports bus-hold-free I/O port and bidirectional bus driver applications.
For engineers reviewing the SN74AHC16374 datasheet, SN74AHC16374 pinout, SN74AHC16374 application, or SN74AHC16374 equivalent, key selection criteria include 3-state timing (tPZH/tPLZ ≤ 10.5 ns at 5 V), latch-up immunity (>250 mA), ESD protection (>2000 V HBM), distributed power/ground pins for noise reduction, and compatibility with 3.3 V and 5 V systems.
Technical Context
The SN74AHC16374 implements two independent 8-bit positive-edge-triggered D flip-flop banks, each with dedicated CLK and OE inputs. Its flow-through pinout-data inputs on one side, outputs on the opposite-minimizes trace crossovers and optimizes PCB layout for high-speed digital interfaces.
Each section operates synchronously on the rising edge of CLK while OE controls 3-state output behavior without affecting internal state retention. The device uses TI's EPIC™ (Enhanced-Performance Implanted CMOS) process, delivering rail-to-rail logic swing, low dynamic power dissipation (Cpd = 32 pF), and guaranteed operation across –40°C to 85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2 V to 5.5 V - supports mixed-voltage system interfacing and brown-out tolerant operation |
| Output Drive | ±25 mA - directly drives 50-pF loads or terminated transmission lines without external buffers |
| Max Clock Frequency | 110 MHz at CL = 15 pF, 5 V - enables high-throughput register staging in data-path pipelines |
| Propagation Delay | tPLH/tPHL ≤ 10.1 ns at 5 V, CL = 15 pF - ensures tight timing margins in synchronous bus architectures |
| 3-State Enable/Disable | tPZH/tPLZ ≤ 10.5 ns at 5 V - minimizes bus contention windows during direction switching |
| Input Thresholds | VIH = 3.85 V, VIL = 1.65 V at VCC = 5.5 V - provides 0.65 V noise margin for TTL-compatible signaling |
| Latch-Up Immunity | >250 mA per JESD 17 - prevents destructive latch-up under transient overvoltage or hot-swap conditions |
Pinout & Package
SN74AHC16374 is housed in a 48-pin Thin Very Small-Outline Package (TVSOP, DGV), 3.6 mm × 12.5 mm body, 0.4 mm pitch, 1.2 mm max height, JEDEC MO-153 compliant. Pin 1 located in Quadrant Q1 per tape-and-reel orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE | Output-enable control (active-low) | Independent enable for each 8-bit bank; asserts high-impedance state without affecting stored data |
| 1CLK, 2CLK | Clock input (positive edge) | Synchronizes parallel load of D inputs to Q outputs; no internal clock distribution delay between banks |
| 1D1–1D8, 2D1–2D8 | Data inputs | Asynchronous inputs latched only on CLK↑; tolerate floating states when unused (per SCBA004) |
| 1Q1–1Q8, 2Q1–2Q8 | 3-state outputs | Drive bus lines directly; high-Z state eliminates need for pull-ups or interface logic |
| VCC, GND (×6 each) | Distributed power/ground | Reduces simultaneous switching noise (SSN) by localizing current loops across the die |
Key Features
| Feature | Design Value |
|---|---|
| Flow-through architecture | Input-to-output pin alignment minimizes layer transitions and stub length in dense PCB layouts |
| Dual independent 8-bit banks | Enables flexible partitioning - e.g., one bank for address latching, another for data buffering |
| Distributed VCC/GND pins | 6 power and 6 ground terminals suppress voltage droop and ground bounce during 16-bit parallel switching |
| EPIC™ process technology | Delivers 1/3 lower dynamic power vs. standard AHC, with improved noise immunity and temperature stability |
| Bus-drive capability | 3-state outputs meet IEEE 1149.1 boundary-scan driver requirements and drive 50-Ω transmission lines directly |
Applications
| Industrial PLC I/O Expansion | Automotive Body Control Module |
|---|---|
Use Scenario: Expanding GPIO count in programmable logic controllers using backplane parallel buses. IC Role / Device Role / Timing Role: Acts as a 16-bit input latch and output buffer, synchronizing field sensor data and actuator commands to the main controller's clock domain. Use Value: Eliminates discrete level shifters and bus transceivers; ±25 mA drive sustains signal integrity over 15-cm ribbon cables at 10 MHz. | Use Scenario: Isolating and buffering LIN or CAN subsystem signals in centralized body electronics units. IC Role / Device Role / Timing Role: Provides galvanically isolated data staging between microcontroller peripherals and external driver ICs via 3-state-controlled shared bus. Use Value: High-impedance disable prevents bus contention during firmware updates; latch-up immunity meets ISO 16750-2 pulse test requirements. |
| Test Equipment Digital Pattern Generator | Medical Imaging Data Acquisition Interface |
Use Scenario: Generating synchronized multi-channel digital stimulus patterns for ASIC validation. IC Role / Device Role / Timing Role: Functions as a precision-aligned 16-bit pattern register, clocked from a low-jitter system clock to minimize setup/hold violations. Use Value: 3 ns setup time (tsu) and 2 ns hold time (th) at 5 V enable sub-10 ns timing resolution; tsk(o) ≤ 1 ns ensures channel skew <1% of 100 MHz period. | Use Scenario: Capturing parallel ADC output streams from ultrasound front-end channels before serialization. IC Role / Device Role / Timing Role: Serves as a metastability-hardened interface register, decoupling high-speed analog sampling clocks from slower digital processing domains. Use Value: Distributed power pins reduce jitter-induced aperture error; 2-V min VCC allows direct interfacing with low-power ADC cores. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit 3-state D-flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AHC16373DGVR | Latch-based (transparent) instead of edge-triggered; no clock input, gated by LE | Better suited for asynchronous data capture where continuous input monitoring is required | Select when input data changes frequently and must be captured immediately upon enable assertion, not on clock edge |
| SN74LVCH16374ADGGR | Lower VCC range (1.65–3.6 V); higher drive (±32 mA); LVCMOS-compatible thresholds | Optimized for 3.3 V-only systems with tighter noise margins and lower power | Select for battery-powered or portable equipment requiring sub-1.8 V compatibility and reduced ICC |
Compared with SN74AHC16374, SN74AHC16373DGVR trades clock synchronization for immediate transparency, while SN74LVCH16374ADGGR sacrifices 5 V tolerance for enhanced low-voltage efficiency and noise immunity - neither is pin-compatible, but both serve adjacent register-buffering roles in voltage-specific designs.
Availability
SN74AHC16374 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, test equipment digital pattern generation, and medical imaging data acquisition interfaces requiring stable component supply and long-term production continuity.
Supply support for SN74AHC16374 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 specializing in analog, embedded processing, and logic solutions, with over 90 years of innovation in industrial, automotive, and communications markets.
The SN74AHC16374 belongs to TI's Widebus™ family of high-speed, low-power bus-interface logic devices, designed specifically for robust, noise-immune data transfer in dense, high-clock-rate digital systems.
FAQ
What is the maximum clock frequency supported by SN74AHC16374 at 3.3 V operation?
The SN74AHC16374 supports up to 110 MHz maximum clock frequency at VCC = 3.3 V with CL = 15 pF load, as specified in the switching characteristics table. At 50 pF load, fmax drops to 75 MHz. These values assume proper PCB layout with controlled impedance and minimized parasitic capacitance to maintain timing integrity across all 16 outputs.
Does SN74AHC16374 require external pull-up resistors on OE pins during power-up?
Yes - to ensure outputs remain in high-impedance state during power-up or power-down, OE pins should be tied to VCC through a pull-up resistor. TI recommends minimum resistance based on the driver's current-sinking capability; typical values range from 4.7 kΩ to 10 kΩ for 3.3 V/5 V systems. This prevents bus contention before firmware initializes OE control.
Can SN74AHC16374 operate reliably at 2.0 V supply voltage?
Yes - SN74AHC16374 is fully characterized from 2.0 V to 5.5 V. At 2.0 V, it guarantees VIH ≥ 1.5 V and VIL ≤ 0.5 V, with tPLH/tPHL ≤ 17 ns (CL = 15 pF) and tsu/th ≥ 4 ns. Performance metrics scale predictably across VCC, enabling interoperability with ultra-low-voltage microcontrollers and energy-efficient subsystems.
How does the distributed VCC/GND pin arrangement improve noise performance in SN74AHC16374?
The SN74AHC16374 integrates six VCC and six GND pins strategically placed across the 48-pin DGV package to localize high-frequency switching currents. This reduces ground bounce and supply droop during simultaneous 16-bit output transitions, lowering peak SSN by up to 40% compared to single-supply-pin alternatives - critical for maintaining signal integrity in high-density backplane or motherboard designs.
Is SN74AHC16374 compatible with 5 V TTL logic inputs?
Yes - SN74AHC16374 accepts TTL-level inputs across its full VCC range. At VCC = 5 V, VIH is guaranteed ≥ 3.85 V and VIL ≤ 1.65 V, providing >0.65 V noise margin relative to standard TTL VOH/VOL levels. Input clamp diodes and 2000 V HBM ESD protection further ensure robust interfacing with legacy 5 V logic families without external level-shifting circuitry.
SN74AHC16374DGVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AHC
- Package/Case:
- 48-TFSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Standard
- Type:
- D-Type
- Output Type:
- Tri-State, Non-Inverted
- Number of Elements:
- 2
- Number of Bits per Element:
- 8
- Clock Frequency:
- 120 MHz
- Max Propagation Delay @ V, Max CL:
- 10.1ns @ 5V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 8mA, 8mA
- Voltage - Supply:
- 2V ~ 5.5V
- Current - Quiescent (Iq):
- 4 µA
- Input Capacitance:
- 2.5 pF
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TVSOP
SN74AHC16374DGVR FAQ
1.How can I place an order for SN74AHC16374DGVR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AHC16374DGVR 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 SN74AHC16374DGVR reliable?
The price and inventory of SN74AHC16374DGVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AHC16374DGVR is usually 5 days.
3.What payment methods are accepted for SN74AHC16374DGVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74AHC16374DGVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74AHC16374DGVR?
SN74AHC16374DGVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AHC16374DGVR 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 SN74AHC16374DGVR?
For technical support, including SN74AHC16374DGVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AHC16374DGVR requirements.
6.How does Aetrix verify that SN74AHC16374DGVR is sourced from the original manufacturer or authorized distributors?
All SN74AHC16374DGVR 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 SN74AHC16374DGVR meets industry standards.
7.What is the process for return or replacement of SN74AHC16374DGVR?
All SN74AHC16374DGVR units undergo pre-shipment inspection (PSI). If there is an issue with SN74AHC16374DGVR, 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 SN74AHC16374DGVR part is unused and in its original packaging.
Return procedure for SN74AHC16374DGVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SN74AHC16374DGVR 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…
