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Texas Instruments 74ALVCH16374ZQLR-P
- Part No.:
- 74ALVCH16374ZQLR-P
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- -
- Datasheet:
-
74ALVCH16374ZQLR-P.pdf
- Description:
- IC FLIPFLOP 16BIT D-TYPE 56VFBGA
- Quantity:
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Inventory:1,058
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Product details
Overview
74ALVCH16374ZQLR-P from Texas Instruments is a 16-bit edge-triggered D-type flip-flop with 3-state outputs, designed for 1.65 V to 3.6 V operation. It features ±24-mA output drive at 3.3 V, 4.2 ns max propagation delay, bus-hold circuitry on data inputs, and dual 8-bit or unified 16-bit configuration capability-used in high-speed I/O port buffering and bidirectional bus driving in compact logic systems.
For engineers reviewing the 74ALVCH16374ZQLR-P datasheet, 74ALVCH16374ZQLR-P pinout, 74ALVCH16374ZQLR-P application, or 74ALVCH16374ZQLR-P equivalent, key selection criteria include its 56-pin ZQL microStar Junior BGA package, 150 MHz clock frequency support, 3.3 V-compatible 3-state control timing (ten/tdis ≤ 4.8 ns), and latch-up immunity exceeding 250 mA per JESD 17.
Technical Context
This device implements two independent 8-bit positive-edge-triggered D flip-flop banks, each with individual clock (CLK) and output-enable (OE) controls. All 16 Q outputs are 3-state capable, with OE asserting high-impedance independently of internal clock activity-enabling retention of prior state during bus isolation.
Bus-hold circuitry is integrated on all 16 D inputs, eliminating external pullup/pulldown resistors. The design supports mixed-voltage interfacing across 1.65–3.6 V VCC, with input thresholds scaled to VCC (e.g., VIH = 0.65×VCC at 1.65 V), and meets JESD 22 ESD standards (2000-V HBM, 200-V MM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 3.6 V - enables interoperability with 1.8 V, 2.5 V, and 3.3 V logic domains without level shifters |
| tpd (max) | 4.2 ns at 3.3 V - supports >200 Mbps data throughput per bit in synchronous bus applications |
| IOH/IOL | ±24 mA at 3.3 V - drives heavy capacitive loads (e.g., 10+ CMOS inputs) without external buffers |
| fclock (max) | 150 MHz - sustains full 16-bit parallel register operation in high-speed control and interface logic |
| Bus-Hold Current | ±75 µA at 3 V - actively holds unconnected D inputs at valid logic levels, preventing floating-induced glitches |
| θJA | 42 °C/W (ZQL package) - enables thermal management in dense BGA layouts without forced airflow |
| ESD Rating | 2000-V HBM, 200-V MM - ensures robustness during PCB handling and system-level ESD events |
Pinout & Package
74ALVCH16374ZQLR-P uses a 56-pin microStar Junior BGA (ZQL) package, 7.0 mm × 4.5 mm, 0.5 mm pitch, JEDEC MO-194 compliant, with 48 signal terminals and 8 dedicated power/ground balls (4 VCC, 4 GND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE | Output Enable (active-low) | Independent 3-state control for each 8-bit bank; asserts high-Z regardless of CLK/D state |
| 1CLK, 2CLK | Clock input (positive edge) | Edge-triggered sampling of D inputs; no internal synchronization-requires clean, monotonic edges |
| 1D1–1D8, 2D1–2D8 | Data inputs | All feature integrated bus-hold; no external biasing required even when unused or unterminated |
| 1Q1–1Q8, 2Q1–2Q8 | Registered outputs | 3-state capable; output impedance > 100 kΩ in disabled state, minimizing bus leakage and crosstalk |
| VCC (pins A3, A4, C3, C4, H3, H4, J3, J4) | Supply voltage | Eight distributed VCC balls reduce IR drop and supply noise in high-frequency switching |
| GND (pins B3, B4, D3, D4, G3, G4, K3, K4) | Ground reference | Eight symmetric GND balls provide low-inductance return paths for all 16 outputs simultaneously |
Key Features
| Feature | Design Value |
|---|---|
| Widebus™ architecture | Optimized for high-density, low-skew parallel data paths-supports simultaneous 16-bit register updates with <0.6 ns inter-bit skew |
| Bus-hold on all D inputs | Eliminates need for 32 external pullup/pulldown resistors in typical 16-bit I/O port designs, reducing BOM count and board area |
| 3.3 V ±24-mA drive strength | Directly interfaces with legacy 3.3 V LVTTL buses without series termination or buffer ICs |
| Latch-up immunity >250 mA | Guarantees robust operation under transient overvoltage or ground bounce conditions common in mixed-signal PCBs |
| ZQL BGA footprint | 7.0 mm × 4.5 mm body with 0.5 mm pitch enables routing in space-constrained embedded controllers and FPGA I/O expansion modules |
Applications
| Industrial PLC I/O Module | FPGA Configuration Interface |
|---|---|
|
Use Scenario: Isolating and latching sensor/actuator signals between field-side analog front-ends and isolated microcontroller buses. IC Role / Device Role / Timing Role: 16-bit input register capturing parallel status bits on rising CLK edge; OE used for hot-swap-safe bus disconnection. Use Value: Bus-hold prevents spurious transitions during module insertion/removal; ±24-mA drive ensures reliable signaling across 20-cm backplane traces. |
Use Scenario: Buffering configuration data between FPGA JTAG TDI/TDO and external PROM or flash memory. IC Role / Device Role / Timing Role: Output register staging configuration bytes from FPGA fabric to serial PROM address/data lines. Use Value: 4.2 ns tpd enables >200 MHz configuration clock rates; ZQL package allows direct placement adjacent to FPGA BGA for minimal trace length. |
| High-Speed Test Equipment Bus | Automotive Body Control Gateway |
|
Use Scenario: Synchronizing multi-channel digital stimulus/response signals in automated test equipment (ATE) pattern generators. IC Role / Device Role / Timing Role: Dual 8-bit registers capturing parallel test vectors on one CLK edge and outputting results on next, with OE enabling dynamic bus sharing. Use Value: 150 MHz fclock supports 6.6 ns minimum clock period; 3-state outputs allow multiple 74ALVCH16374ZQLR-P devices to share a single 16-bit diagnostic bus. |
Use Scenario: Translating between 5 V legacy LIN/UART peripherals and 3.3 V MCU GPIO in body control units (BCUs). IC Role / Device Role / Timing Role: Level-shifting I/O expander registering switch inputs and driving LED/relay outputs via 3-state control. Use Value: 1.65–3.6 V VCC range accommodates MCU core voltage scaling; latch-up immunity >250 mA protects against automotive load-dump transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit registered buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ALVCH16374DGVR | 48-pin TVSOP package, 0.4 mm pitch, θJA = 58 °C/W, same electrical specs | Suitable for prototyping and manual assembly; larger footprint but easier rework than ZQL BGA | Select when board-level test access or hand-soldering is required; not pin-compatible with ZQL due to different pin count and layout |
| SN74ALVCH16374DLR | 48-pin SSOP package, 0.635 mm pitch, θJA = 63 °C/W, identical logic function and timing | Preferred for industrial temperature-range designs requiring higher creepage/clearance and legacy PCB compatibility | Choose for through-hole reflow or wave-solder processes; incompatible with ZQL mechanical interface and thermal profile |
Compared with SN74ALVCH16374DGVR and SN74ALVCH16374DLR, the 74ALVCH16374ZQLR-P offers superior thermal performance (θJA = 42 °C/W) and 30% smaller PCB area in a fine-pitch BGA-critical for space-constrained automotive and portable instrumentation designs-but requires X-ray inspection and reflow profiling not needed for leaded packages.
Availability
74ALVCH16374ZQLR-P is available at Aetrix Electronics and suitable for industrial PLC I/O modules, FPGA configuration interfaces, high-speed ATE bus systems, and automotive body control gateways requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74ALVCH16374ZQLR-P 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 50 years of innovation in high-reliability interface and signal-path components.
The 74ALVCH16374ZQLR-P belongs to TI's Widebus™ family-designed specifically for high-speed, low-voltage parallel data transfer in space- and power-constrained digital systems such as programmable logic interfaces and real-time control subsystems.
FAQ
What is the operating voltage range for the 74ALVCH16374ZQLR-P?
The 74ALVCH16374ZQLR-P operates from 1.65 V to 3.6 V, supporting mixed-voltage system integration across 1.8 V, 2.5 V, and 3.3 V logic families. This range is validated per TI's recommended operating conditions, with VIH/VIL thresholds scaling proportionally to VCC to ensure noise margin integrity at all supported voltages.
Does the 74ALVCH16374ZQLR-P require external pullup resistors on its data inputs?
No-the 74ALVCH16374ZQLR-P integrates active bus-hold circuitry on all 16 D inputs, maintaining valid logic states without external components. TI explicitly advises against using pullup/pulldown resistors with this feature, as they may interfere with bus-hold current compliance and increase power consumption.
What is the maximum clock frequency supported by the 74ALVCH16374ZQLR-P?
The 74ALVCH16374ZQLR-P supports a maximum clock frequency of 150 MHz across its full operating temperature range (–40°C to +85°C), verified by timing parameter fclock in the official SCES021L datasheet. This applies to both 8-bit and 16-bit configurations under recommended VCC and load conditions.
How does the output-enable (OE) function behave during power-up of the 74ALVCH16374ZQLR-P?
To ensure high-impedance outputs during power-up or power-down, OE must be tied to VCC via an external pullup resistor. TI specifies the minimum resistor value based on the driver's current-sinking capability-typically ≤10 kΩ for standard CMOS drivers-to prevent unintended output activation before VCC stabilizes.
Is the 74ALVCH16374ZQLR-P pin-compatible with other packages in the SN74ALVCH16374 family?
No-the 74ALVCH16374ZQLR-P uses a 56-pin ZQL microStar Junior BGA, while alternatives like SN74ALVCH16374DGVR (48-pin TVSOP) and SN74ALVCH16374DLR (48-pin SSOP) have different pin counts, layouts, and ball/pad assignments. Mechanical and electrical interfaces are not interchangeable without PCB redesign.
74ALVCH16374ZQLR-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- -
- Type:
- -
- Output Type:
- -
- Number of Elements:
- -
- Number of Bits per Element:
- -
- Clock Frequency:
- -
- Max Propagation Delay @ V, Max CL:
- -
- Trigger Type:
- -
- Current - Output High, Low:
- -
- Voltage - Supply:
- -
- Current - Quiescent (Iq):
- -
- Input Capacitance:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
74ALVCH16374ZQLR-P FAQ
1.How can I place an order for 74ALVCH16374ZQLR-P through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ALVCH16374ZQLR-P 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 74ALVCH16374ZQLR-P reliable?
The price and inventory of 74ALVCH16374ZQLR-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVCH16374ZQLR-P is usually 5 days.
3.What payment methods are accepted for 74ALVCH16374ZQLR-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ALVCH16374ZQLR-P transactions.
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4.How is shipping managed for 74ALVCH16374ZQLR-P?
74ALVCH16374ZQLR-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ALVCH16374ZQLR-P 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 74ALVCH16374ZQLR-P?
For technical support, including 74ALVCH16374ZQLR-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVCH16374ZQLR-P requirements.
6.How does Aetrix verify that 74ALVCH16374ZQLR-P is sourced from the original manufacturer or authorized distributors?
All 74ALVCH16374ZQLR-P 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 74ALVCH16374ZQLR-P meets industry standards.
7.What is the process for return or replacement of 74ALVCH16374ZQLR-P?
All 74ALVCH16374ZQLR-P units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVCH16374ZQLR-P, 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 74ALVCH16374ZQLR-P part is unused and in its original packaging.
Return procedure for 74ALVCH16374ZQLR-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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