My Inquiry
My Account
Nexperia USA Inc. 74ALVCH16373DGG:11
- Part No.:
- 74ALVCH16373DGG:11
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Latches
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74ALVCH16373DGG:11.pdf
- Description:
- IC TRANSP LATCH 16BIT D 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:949
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74ALVCH16373DGG:11 from Nexperia is a 16-bit D-type transparent latch with bus hold inputs and 3-state outputs, operating across 1.2 V to 3.6 V supply. It functions as two independent 8-bit latches (each controlled by dedicated LE/OE) or one unified 16-bit latch, supporting high-speed data capture in memory interfaces and bus isolation circuits at up to 3.3 V. Its IOFF partial power-down protection prevents backflow current during system sleep states.
For engineers reviewing the 74ALVCH16373DGG:11 datasheet, 74ALVCH16373DGG:11 pinout, 74ALVCH16373DGG:11 application, or 74ALVCH16373DGG:11 equivalent, this page delivers verified functional architecture, TSSOP48 pin mapping, bus hold behavior, propagation delay (≤3.3 ns @ 3.3 V), and real-world latch enable timing constraints for deterministic digital interface design.
Technical Context
The device implements dual independent 8-bit transparent latch banks, each with separate active-HIGH latch enable (1LE/2LE) and active-LOW output enable (1OE/2OE). Latch transparency occurs when nLE is HIGH, allowing real-time input-to-output tracking; data is captured on the HIGH-to-LOW transition of nLE with setup/hold times as low as 1.0 ns/0.2 ns @ 3.3 V.
Bus hold circuitry maintains valid logic levels on unused or floating inputs without external pull-ups, drawing ±75 μA at 3.0 V. The IOFF feature disables outputs during power-down (VCC = 0 V), blocking destructive back-current flow between powered and unpowered system domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage range | 1.2 V to 3.6 V - supports mixed-voltage systems including 1.8 V, 2.5 V, and 3.3 V logic domains |
| Propagation delay (nDn → nQn) | 1.0–3.3 ns @ VCC = 3.0–3.6 V - enables sub-300 MHz data capture in high-speed parallel buses |
| Output drive strength | ±24 mA @ VCC = 3.0 V - directly drives 50 Ω transmission lines at 85 °C without external buffers |
| Bus hold current | ±75 μA @ VI = 0.8 V / 2.0 V, VCC = 3.0 V - eliminates need for external bias resistors on idle data lines |
| IOFF leakage | <10 μA @ VCC = 0 V - prevents backflow current during partial power-down in hot-swap or low-power modes |
| Operating temperature | −40 °C to +85 °C - qualified for industrial-grade embedded control and communications equipment |
| ESD robustness | HBM >2000 V, CDM >1000 V - withstands handling and board-level ESD events per JEDEC JS-001/JS-002 |
Pinout & Package
TSSOP48 package (SOT362-1), 48-pin plastic thin shrink small outline, 6.1 mm body width, 0.5 mm pitch, lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE (Pins 1, 24) | Active-LOW output enable | Assert LOW to enable corresponding 8-bit output bank; HIGH forces high-impedance state regardless of latch content |
| 1LE, 2LE (Pins 48, 25) | Active-HIGH latch enable | Assert HIGH for transparent mode (input→output); falling edge captures and holds data at D inputs |
| 1D0–1D7 (Pins 47, 46, 44, 43, 41, 40, 38, 37) | Data inputs (Bank 1) | Bus hold enabled - retains last valid logic level when un-driven, eliminating floating node risk |
| 2D0–2D7 (Pins 36, 35, 33, 32, 30, 29, 27, 26) | Data inputs (Bank 2) | Same bus hold functionality as Bank 1; electrically isolated but identical electrical specs |
| 1Q0–1Q7 (Pins 2, 3, 5, 6, 8, 9, 11, 12) | Data outputs (Bank 1) | 3-state outputs with fast disable time (≤4.1 ns @ 3.3 V); compatible with TTL input thresholds |
| 2Q0–2Q7 (Pins 13, 14, 16, 17, 19, 20, 22, 23) | Data outputs (Bank 2) | Independent 3-state control via 2OE; supports simultaneous or staggered bus release |
| VCC (Pins 7, 18, 31, 42) | Power supply | Four distributed VCC pins minimize IR drop and ground bounce in high-speed switching |
| GND (Pins 4, 10, 15, 21, 28, 34, 39, 45) | Ground reference | Eight GND pins ensure low-inductance return paths for all I/O banks and internal logic |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 8-bit latch banks | Enables flexible partitioning - e.g., address/data separation or channelized buffering without inter-bank contention |
| MULTIBYTE™ flow-through pinout | Input/output pairs aligned on opposite sides of package - simplifies PCB routing and reduces trace crosstalk |
| IOFF partial power-down protection | Outputs automatically enter high-Z when VCC = 0 V - critical for hot-plug, battery-backed, or multi-rail power sequencing |
| Bus hold on all data inputs | Eliminates external pull-up/down resistors on unused or intermittently driven lines - saves BOM cost and board space |
| Low ground bounce noise | Multiple low-inductance VCC/GND pins suppress simultaneous switching noise - improves signal integrity in dense layouts |
Applications
| Memory Interface Buffering | Industrial Bus Isolation |
|---|---|
|
Use Scenario: Buffering address/data lines between microcontroller and SRAM/Flash in an industrial PLC controller. IC Role / Device Role / Timing Role: Transparent latch captures stable address before memory access window; 3-state outputs isolate bus during DMA cycles. Use Value: Enables deterministic timing with ≤3.3 ns propagation delay and eliminates bus contention using independent OE controls. |
Use Scenario: Isolating CAN or RS-485 transceiver data lines from host MCU during firmware updates. IC Role / Device Role / Timing Role: Latch holds last valid bus state while host resets; 3-state outputs prevent transceiver lockup during reset recovery. Use Value: Prevents communication loss during reconfiguration using IOFF protection and bus hold retention. |
| High-Speed Parallel Test Equipment | Legacy System Interfacing |
|
Use Scenario: Capturing parallel test vectors from FPGA pattern generator into DUT interface board at 200+ MHz. IC Role / Device Role / Timing Role: Dual 8-bit banks latch separate nibbles synchronously; fast set-up/hold (1.0 ns/0.2 ns) meets tight timing budgets. Use Value: Supports reliable high-frequency vector capture without external timing margining or clock domain crossing logic. |
Use Scenario: Bridging 3.3 V FPGA I/O to legacy 5 V TTL peripherals in avionics maintenance equipment. IC Role / Device Role / Timing Role: Level-shifting buffer with direct TTL compatibility and bus hold for open-drain peripheral handshaking. Use Value: Eliminates discrete level shifters and pull-ups while maintaining noise immunity and voltage translation integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit transparent latch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ALVTH16373DGGR | TI part with identical pinout and function but higher drive (±32 mA) and wider temp range (−40 °C to +125 °C); no bus hold | Requires external pull resistors on unused inputs; better suited for automotive under-hood use | Select when higher output current or extended temperature operation is required and bus hold is not needed |
| 74LVC16373ADGG | Nexperia LVC variant: same TSSOP48 package, but only 1.65–3.6 V supply range and no IOFF or bus hold | Lacks partial power-down and floating-input protection - unsuitable for hot-swap or low-power sleep modes | Choose for cost-sensitive, single-rail 3.3 V designs where IOFF and bus hold are unnecessary |
Compared with SN74ALVTH16373DGGR and 74LVC16373ADGG, the 74ALVCH16373DGG:11 uniquely combines bus hold, IOFF, and wide 1.2–3.6 V operation - making it optimal for industrial systems requiring robustness against floating nodes and multi-rail power sequencing.
Availability
74ALVCH16373DGG:11 is available at Aetrix Electronics and suitable for industrial automation controllers, high-speed test instrumentation, and legacy system interface modules requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant sourcing.
Supply support for 74ALVCH16373DGG:11 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
Nexperia is a global semiconductor expert delivering high-performance logic, analog, and MOSFET solutions optimized for efficiency, reliability, and miniaturization in industrial, automotive, and consumer electronics.
The 74ALVCH16373 belongs to Nexperia's advanced ALVCH logic family, engineered for low-voltage, high-speed parallel data path management in space-constrained and thermally demanding embedded systems.
FAQ
Does the 74ALVCH16373DGG:11 support true bidirectional data flow?
No. It is a unidirectional transparent latch: data flows only from D inputs to Q outputs. While outputs are 3-state, there is no internal feedback path or direction-control pin. Bidirectional operation requires external control logic or a dedicated transceiver IC.
Can 1LE and 2LE be tied together for single 16-bit operation?
Yes. Connecting 1LE and 2LE allows synchronous latching of all 16 bits. However, doing so forfeits independent bank control - both 8-bit sections will latch simultaneously, eliminating flexibility for staggered or split-bus capture scenarios.
What is the maximum capacitive load the outputs can drive reliably?
The device is characterized for CL = 30 pF (2.3–2.7 V) and CL = 50 pF (3.0–3.6 V) in timing specs. Driving >50 pF may increase propagation delay and reduce noise margin; for heavier loads, add series termination or buffer stages per layout simulation.
Is the bus hold feature enabled by default, or does it require external configuration?
Bus hold is intrinsic to all data inputs (1D0–1D7, 2D0–2D7) and requires no external components or configuration. It activates automatically when input voltage falls within the undefined region (e.g., ~0.8 V to ~2.0 V at 3.0 V VCC), holding the last valid logic state.
74ALVCH16373DGG:11 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74ALVCH
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- D-Type Transparent Latch
- Circuit:
- 8:8
- Output Type:
- Tri-State
- Voltage - Supply:
- 2.3V ~ 2.7V, 3V ~ 3.6V
- Independent Circuits:
- 2
- Delay Time - Propagation:
- 2.1ns
- Current - Output High, Low:
- 24mA, 24mA
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSSOP
74ALVCH16373DGG:11 FAQ
1.How can I place an order for 74ALVCH16373DGG:11 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ALVCH16373DGG:11 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 74ALVCH16373DGG:11 reliable?
The price and inventory of 74ALVCH16373DGG:11 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVCH16373DGG:11 is usually 5 days.
3.What payment methods are accepted for 74ALVCH16373DGG:11?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ALVCH16373DGG:11 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ALVCH16373DGG:11?
74ALVCH16373DGG:11 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ALVCH16373DGG:11 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 74ALVCH16373DGG:11?
For technical support, including 74ALVCH16373DGG:11 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVCH16373DGG:11 requirements.
6.How does Aetrix verify that 74ALVCH16373DGG:11 is sourced from the original manufacturer or authorized distributors?
All 74ALVCH16373DGG:11 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 74ALVCH16373DGG:11 meets industry standards.
7.What is the process for return or replacement of 74ALVCH16373DGG:11?
All 74ALVCH16373DGG:11 units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVCH16373DGG:11, 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 74ALVCH16373DGG:11 part is unused and in its original packaging.
Return procedure for 74ALVCH16373DGG:11:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74ALVCH16373DGG:11 Tags
-
SN74HC573APWR
Texas Instruments
-
SN74HC573ADWR
Texas Instruments
-
SN74AHC573PWR
Texas Instruments
-
SN74HCT573DWR
Texas Instruments
-
SN74HC373N
Texas Instruments
-
SN74HC573AN
Texas Instruments
-
74VHC573MTCX
onsemi
-
MC74LCX573DTR2G
onsemi
-
74AUP1G373GW,125
Nexperia USA Inc.
-
SN74LVC1G373DCKR
Texas Instruments
-
SN74LVC1G373DBVR
Texas Instruments
-
NC7SZ373P6X
onsemi
Tech Hub
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…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
