My Inquiry
My Account
Texas Instruments 74ALVTH16374ZQLR
- Part No.:
- 74ALVTH16374ZQLR
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 56-VFBGA
- Datasheet:
-
74ALVTH16374ZQLR.pdf
- Description:
- IC FF D-TYPE DUAL 8BIT 56BGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,037
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74ALVTH16374ZQLR from Texas Instruments is a 2.5-V/3.3-V 16-bit edge-triggered D-type flip-flop with 3-state outputs, designed for high-speed bidirectional bus interfacing in mixed-voltage systems. It features bus-hold circuitry on data inputs, auto-3-state output disable above VCC + 0.5 V, and supports TTL-level inputs at 5 V while operating from 2.3 V to 3.6 V VCC - enabling direct connection to legacy 5-V logic in modern low-voltage designs.
For engineers reviewing the 74ALVTH16374ZQLR datasheet, 74ALVTH16374ZQLR pinout, 74ALVTH16374ZQLR application, or 74ALVTH16374ZQLR equivalent, key selection considerations include its dual 8-bit or unified 16-bit configuration, ±32 mA drive capability at 3.3 V, sub-4 ns propagation delay (tPLH/tPHL), and guaranteed operation across –40°C to 85°C industrial temperature range.
Technical Context
This device implements two independent 8-bit D-type flip-flop sections, each with separate clock (CLK) and output-enable (OE) controls, allowing flexible partitioning of data paths. Its Advanced BiCMOS Technology (ABT) architecture delivers low static power dissipation while maintaining high-speed switching performance up to 250 MHz at 3.3 V.
The flow-through pinout minimizes signal crosstalk and simplifies PCB routing, and distributed VCC/GND pins reduce high-frequency ground bounce (VOLP < 0.8 V at 3.3 V). Power-off output disable and high-impedance state during power-up/down prevent bus contention without external sequencing control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.3 V to 3.6 V - enables interoperability between 2.5-V, 3.3-V, and 5-V logic domains |
| Max Clock Frequency | 250 MHz at 3.3 V - supports high-throughput data latching in fast digital interfaces |
| Output Drive | –32 mA / +32 mA at 3.3 V - drives heavy capacitive loads and long traces without buffers |
| Propagation Delay | 1.0 ns (min) to 3.4 ns (max) - ensures tight timing margins in synchronous bus applications |
| Bus-Hold Current | ±75 µA at 3 V - eliminates need for external pullup/pulldown resistors on unused inputs |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded and communications equipment |
| Input Voltage Tolerance | 0 V to 5.5 V - accepts 5-V TTL signals directly without level-shifting circuitry |
Pinout & Package
ZQL package is a 48-pin TSSOP (Thin Shrink Small-Outline Package) with 0.5-mm pitch, JEDEC MO-153 compliant, 12.6 mm × 6.2 mm body size, and 1.2 mm max height - optimized for space-constrained industrial PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE | Output-enable control (active-low) | Independent enable for each 8-bit section; asserts high-impedance state without affecting internal latch state |
| 1CLK, 2CLK | Clock input (positive-edge triggered) | Synchronizes data capture from D inputs to Q outputs on rising edge; no internal synchronization required |
| 1D1–1D8, 2D1–2D8 | Data inputs | Each has integrated bus-hold circuitry - prevents floating states and eliminates external biasing components |
| 1Q1–1Q8, 2Q1–2Q8 | 3-state outputs | Auto-3-state activates when VO > VCC + 0.5 V - prevents bus contention during hot-swap or voltage mismatch |
| VCC, GND (multiple pins) | Power distribution network | Distributed VCC/GND pins minimize simultaneous switching noise and improve signal integrity at high speed |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-mode signal operation | Accepts 5-V TTL inputs while powered from 2.3–3.6 V - eliminates level shifters in hybrid voltage systems |
| Power-off output disable | Outputs enter high-Z automatically when VCC drops below 1.2 V - enables safe live insertion into backplanes |
| Flow-through architecture | Input and output pins arranged on opposite sides - reduces trace length and layer count in dense layouts |
| Low ground bounce (VOLP) | <0.8 V at 3.3 V - maintains signal fidelity and reduces EMI in high-speed digital buses |
| Latch-up immunity | Exceeds 250 mA per JESD 17 - ensures robustness against transient overcurrent events |
Applications
| Industrial I/O Expansion | Memory Interface Buffering |
|---|---|
Use Scenario: Adding parallel GPIO to PLC controllers or motion-control modules using existing 3.3-V FPGA or MCU buses. IC Role / Device Role / Timing Role: Acts as a 16-bit transparent latch and bus driver, synchronizing asynchronous sensor/actuator signals to system clock domain. Use Value: Bus-hold inputs eliminate external pull resistors; ±32 mA drive supports direct connection to optocouplers and relay drivers without buffer ICs. | Use Scenario: Isolating and buffering address/data lines between a 3.3-V SoC and legacy 5-V SRAM or Flash memory. IC Role / Device Role / Timing Role: Provides level translation and timing isolation between mismatched voltage domains while preserving setup/hold timing margins. Use Value: 5-V-tolerant inputs accept memory control signals directly; auto-3-state prevents bus conflicts during memory access arbitration. |
| Telecom Line Card Interface | Test Equipment Signal Conditioning |
Use Scenario: Managing parallel status/control lines across hot-swappable line cards in carrier-grade switches. IC Role / Device Role / Timing Role: Serves as a bidirectional bus transceiver with independent OE control per 8-bit lane for card presence detection and configuration. Use Value: Power-off high-Z behavior allows safe insertion/removal; distributed VCC/GND pins suppress noise in multi-card backplane environments. | Use Scenario: Latching and driving test vectors from ATE pattern generators to DUTs with varying voltage requirements. IC Role / Device Role / Timing Role: Functions as a programmable 16-bit register bank, capturing stimulus data on CLK edge and holding stable outputs during measurement cycles. Use Value: Sub-4 ns propagation delay ensures precise timing alignment; 250 MHz max clock supports high-speed functional test patterns. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ALVTH16374GR | Same ABT core, identical electrical specs, but in DGG (TSSOP-48) package with different pin marking and MSL rating | Compatible for board-level replacement where ZQL footprint is unavailable; requires layout adaptation | Select when ZQL package is out of stock but DGG-compatible PCB revision is feasible |
| SN74LVC16374ADGGR | LVC family - lower drive (±24 mA), no bus-hold, no 5-V tolerant inputs, but lower ICC (0.1 mA typical) | Suitable only for pure 3.3-V systems without TTL interface needs; lacks auto-3-state and live-insertion support | Choose for cost-sensitive, low-power 3.3-V-only applications where 5-V tolerance and bus-hold are unnecessary |
Compared with SN74ALVTH16374GR and SN74LVC16374ADGGR, the 74ALVTH16374ZQLR uniquely combines 5-V input tolerance, bus-hold, auto-3-state, and industrial temperature range - making it irreplaceable in mixed-voltage, hot-swap, or legacy-interfacing designs.
Availability
74ALVTH16374ZQLR is available at Aetrix Electronics and suitable for industrial I/O expansion, telecom line card interfaces, memory interface buffering, and test equipment signal conditioning requiring stable component supply across extended temperature ranges and mixed-voltage operation.
Supply support for 74ALVTH16374ZQLR 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 for industrial, automotive, and communications markets.
The ALVTH logic family was engineered specifically for high-speed, low-noise, mixed-voltage bus interfacing - targeting applications where signal integrity, voltage translation, and robust hot-swap capability are critical.
FAQ
What is the maximum clock frequency supported by the 74ALVTH16374ZQLR?
The 74ALVTH16374ZQLR supports up to 250 MHz at VCC = 3.3 V ± 0.3 V under recommended operating conditions with CL = 50 pF. At 2.5 V operation, the maximum clock frequency is 150 MHz. These values are validated across the full industrial temperature range (–40°C to +85°C) and reflect guaranteed timing performance, not typical-only specifications.
Does the 74ALVTH16374ZQLR require external pullup or pulldown resistors on its data inputs?
No, the 74ALVTH16374ZQLR does not require external pullup or pulldown resistors because it integrates active bus-hold circuitry on all data inputs (1D1–1D8 and 2D1–2D8). This circuitry maintains valid logic levels on floating inputs with ±75 µA sustaining current at 3 V, eliminating risk of undefined states and reducing BOM count.
Can the 74ALVTH16374ZQLR safely interface with 5-V TTL logic while operating from a 3.3-V supply?
Yes, the 74ALVTH16374ZQLR accepts 5-V TTL input signals directly while powered from 2.3 V to 3.6 V. Its input voltage range extends to 5.5 V, and it guarantees VIH = 2.0 V and VIL = 0.8 V at 3.3 V - fully compatible with standard TTL thresholds. No external level-shifting circuitry is needed.
What happens to the outputs of the 74ALVTH16374ZQLR during power-up or power-down?
During power-up or power-down, when VCC is below 1.2 V, the 74ALVTH16374ZQLR automatically places all outputs in a high-impedance state - preventing bus contention and driver conflicts. This behavior is intrinsic and requires no external control. For guaranteed high-Z above 1.2 V, tie OE to VCC via a pullup resistor.
Is the 74ALVTH16374ZQLR pin-compatible with other packages in the ALVTH16374 family?
Yes, the 74ALVTH16374ZQLR shares identical pinout and functionality with SN74ALVTH16374GR (DGG), SN74ALVTH16374VR (DGV), and SN74ALVTH16374DLR (DL) - all are 48-pin devices with matching signal assignments. However, mechanical dimensions and thermal characteristics differ; PCB land patterns must match the ZQL (TSSOP) footprint specifically.
74ALVTH16374ZQLR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74ALVTH
- Package/Case:
- 56-VFBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Standard
- Type:
- D-Type
- Output Type:
- Tri-State, Non-Inverted
- Number of Elements:
- 2
- Number of Bits per Element:
- 8
- Clock Frequency:
- 250 MHz
- Max Propagation Delay @ V, Max CL:
- 3.2ns @ 3.3V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 8mA, 24mA; 32mA, 64mA
- Voltage - Supply:
- 2.3V ~ 2.7V, 3V ~ 3.6V
- Current - Quiescent (Iq):
- 100 µA
- Input Capacitance:
- 3.5 pF
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 56-BGA Microstar Junior (7x4.5)
74ALVTH16374ZQLR FAQ
1.How can I place an order for 74ALVTH16374ZQLR through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ALVTH16374ZQLR 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 74ALVTH16374ZQLR reliable?
The price and inventory of 74ALVTH16374ZQLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVTH16374ZQLR is usually 5 days.
3.What payment methods are accepted for 74ALVTH16374ZQLR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ALVTH16374ZQLR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ALVTH16374ZQLR?
74ALVTH16374ZQLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ALVTH16374ZQLR 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 74ALVTH16374ZQLR?
For technical support, including 74ALVTH16374ZQLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVTH16374ZQLR requirements.
6.How does Aetrix verify that 74ALVTH16374ZQLR is sourced from the original manufacturer or authorized distributors?
All 74ALVTH16374ZQLR 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 74ALVTH16374ZQLR meets industry standards.
7.What is the process for return or replacement of 74ALVTH16374ZQLR?
All 74ALVTH16374ZQLR units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVTH16374ZQLR, 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 74ALVTH16374ZQLR part is unused and in its original packaging.
Return procedure for 74ALVTH16374ZQLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74ALVTH16374ZQLR 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…
