My Inquiry
My Account
Nexperia USA Inc. 74ALVCH16841DGGS
- Part No.:
- 74ALVCH16841DGGS
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Latches
- Package:
- -
- Datasheet:
-
74ALVCH16841DGGS.pdf
- Description:
- 74ALVCH16841 - 20-BIT BUS INTERF
- Quantity:
- Payment:
- Shipping:
Inventory:11,192
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74ALVCH16841DGGS from Nexperia is a 20-bit bus interface D-type latch with dual 10-bit sections, 3-state non-inverting outputs, active bus hold on all inputs, and independent latch enable (nLE) and output enable (nOE) controls. It operates from 1.2 V to 3.6 V, delivers ±24 mA drive at 3.0 V, and supports industrial temperature range (−40 °C to +85 °C). It is used in high-density data bus buffering and level translation between mixed-voltage subsystems.
For engineers reviewing the 74ALVCH16841DGGS datasheet, 74ALVCH16841DGGS pinout, 74ALVCH16841DGGS application, or 74ALVCH16841DGGS equivalent, key selection criteria include bus hold functionality eliminating external resistors, TSSOP56 package pin compatibility with MULTIBYTE™ flow-through architecture, propagation delay ≤3.9 ns at 3.3 V, and JEDEC-compliant voltage thresholds for TTL interfacing.
Technical Context
This device implements two independent 10-bit transparent D-type latches, each with dedicated data inputs (1D0–1D9, 2D0–2D9), latch enable (1LE/2LE), and output enable (1OE/2OE) control. Latch operation is edge-triggered on nLE LOW-to-HIGH transition, while nOE controls high-impedance state without affecting internal register contents.
The integrated bus hold circuitry maintains valid logic levels on unused inputs using ±75 μA to ±175 μA current at VCC = 3.0 V, eliminating need for external pull resistors. Output drive is specified for 50 Ω transmission lines up to 85 °C, with static VIH/VIL thresholds compliant to JESD8-5 (2.3–2.7 V) and JESD8B/JESD36 (2.7–3.6 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.2 V to 3.6 V - Enables direct interface across 1.8 V, 2.5 V, and 3.3 V logic domains without level shifters. |
| Propagation Delay (tpd) | ≤3.9 ns at VCC = 3.0–3.6 V - Supports high-speed bus timing in DDR memory interfaces and FPGA I/O expansion. |
| Output Drive Strength | ±24 mA at VCC = 3.0 V - Sufficient to drive 50 Ω transmission lines directly, reducing signal integrity margin loss. |
| Bus Hold Current | IBHH = −175 μA / IBHL = +150 μA at VCC = 3.0 V - Actively holds floating inputs at valid logic levels, removing need for 10 kΩ pull-up/down resistors. |
| Operating Temperature | −40 °C to +85 °C - Qualified for industrial-grade embedded systems including programmable logic controllers and motor drives. |
| Input Transition Rate | ≥10 ns/V at VCC = 3.0–3.6 V - Ensures reliable sampling of fast-rising/falling signals without metastability in synchronous bus capture. |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - Meets robustness requirements for automated PCB assembly and field-replaceable module handling. |
Pinout & Package
TSSOP56 plastic thin shrink small outline package (SOT364-1), 56-pin, body width 6.1 mm, 0.5 mm pitch, 1.2 mm max height - optimized for high-density PCB layouts with low inductance via multiple VCC/GND pins (4× VCC, 8× GND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1D0–1D9, 2D0–2D9 (pins 2–3, 5–6, 8–10, 12–14, 40–45, 47–56) | Data inputs | All 20 inputs feature bus hold; no external biasing required for unused lines in partial-bus configurations. |
| 1Q0–1Q9, 2Q0–2Q9 (pins 2–3, 5–6, 8–10, 12–14, 15–17, 19–21, 23–24, 26–27) | 3-state non-inverting outputs | Outputs enter high-impedance state when respective nOE is HIGH; latch contents preserved during disable. |
| 1LE, 2LE (pins 56, 29) | Latch enable (active-HIGH) | Transparent latch behavior: data passes through when nLE = HIGH; captured on falling edge of nLE. |
| 1OE, 2OE (pins 1, 28) | Output enable (active-LOW) | Independent control per 10-bit section; enables time-multiplexed bus sharing without data corruption. |
| VCC (pins 7, 22, 35, 50) | Supply voltage | Four distributed power pins minimize IR drop and supply noise in high-speed switching applications. |
| GND (pins 4, 11, 18, 25, 32, 39, 46, 53) | Ground reference | Eight ground pins reduce ground bounce and improve signal integrity for simultaneous switching outputs. |
Key Features
| Feature | Design Value |
|---|---|
| MULTIBYTE™ flow-through pinout | Input/output pairs aligned across package width - simplifies PCB routing and reduces trace length mismatch in parallel bus layouts. |
| Active bus hold on all 20 data inputs | Eliminates need for 20 external pull resistors, saving board space and BOM cost while improving reliability against floating node failures. |
| Low-inductance power distribution | 4× VCC and 8× GND pins minimize supply impedance - critical for maintaining stable logic thresholds during 20-output simultaneous switching. |
| JEDEC-compliant voltage thresholds | VIH = 2.0 V min at VCC = 2.7–3.6 V - ensures interoperability with legacy TTL and 3.3 V CMOS without level-shifting circuitry. |
| 3.3 V compatible 50 Ω line drive | Validated output drive into 50 Ω loads at 85 °C - supports point-to-point and stubbed transmission line topologies in industrial backplanes. |
Applications
| Industrial PLC Backplane Interface | FPGA I/O Expansion Module |
|---|---|
|
Use Scenario: Bidirectional data transfer between CPU module and I/O expansion slots in modular programmable logic controllers. IC Role / Device Role / Timing Role: 20-bit latch buffers address/data bus lines, isolating modules during hot-swap and enabling deterministic read/write timing via synchronized nLE/nOE control. Use Value: Bus hold prevents spurious reads during slot insertion/removal; 3.9 ns tpd ensures cycle-time compliance at 100 MHz bus clock rates. |
Use Scenario: Extending FPGA GPIO count for sensor aggregation and actuator control in edge AI gateways. IC Role / Device Role / Timing Role: Latching parallel sensor data before serial conversion; independent 1LE/2LE allows staggered capture of analog front-end and digital status registers. Use Value: ±24 mA drive directly interfaces with 50 Ω PCB traces; wide 1.2–3.6 V supply supports mixed-voltage FPGA banks without external regulators. |
| Automated Test Equipment (ATE) Signal Conditioning | Legacy System Bus Translation |
|
Use Scenario: Level translation and signal conditioning between 2.5 V ATE controller and 3.3 V DUT interface boards. IC Role / Device Role / Timing Role: Dual-section latch synchronizes test pattern loading and result capture; bus hold maintains known states during test vector transitions. Use Value: JESD8B-compliant VIH/VIL ensures clean logic recognition across voltage domains; 2000 V HBM ESD rating withstands repeated probe contact. |
Use Scenario: Interfacing modern microcontrollers with legacy 5 V TTL peripherals via 3.3 V tolerant input structure. IC Role / Device Role / Timing Role: Buffering and isolating 20-bit parallel bus between MCU and peripheral ASIC; nOE-controlled tri-state enables shared bus arbitration. Use Value: Direct TTL-level compatibility eliminates discrete level shifters; 3-state outputs prevent bus contention during firmware updates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 20-bit bus latch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ALVTH16835DGGR | Higher drive (±32 mA), but no bus hold; requires external pull resistors on unused inputs. | Preferred where higher fanout is needed and board space permits discrete biasing components. | Select when driving longer traces or heavier capacitive loads beyond 50 pF, accepting added BOM complexity. |
| 74LVC16373ADGG | Narrower VCC range (1.65–3.6 V); lacks bus hold; lower drive (±24 mA only at VCC ≥ 3.0 V). | Suitable for cost-sensitive consumer designs where ambient temperature stays within 0–70 °C. | Choose only if operating exclusively above 1.65 V and bus hold is not required for system reliability. |
Compared with SN74ALVTH16835DGGR and 74LVC16373ADGG, the 74ALVCH16841DGGS uniquely combines bus hold, wide 1.2–3.6 V operation, and industrial temperature range - making it the sole option for unbuffered, mixed-voltage, high-reliability bus interfaces without design compromises.
Availability
74ALVCH16841DGGS is available at Aetrix Electronics and suitable for industrial PLC backplanes, FPGA I/O expansion modules, automated test equipment signal conditioning, and legacy system bus translation requiring stable component supply across extended temperature and voltage ranges.
Supply support for 74ALVCH16841DGGS 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 focused on high-volume, high-reliability logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets - delivering energy-efficient, robust, and scalable components.
The 74ALVCH series targets high-speed, low-power bus interface applications in industrial and communications infrastructure, emphasizing voltage flexibility, noise immunity, and long-term supply stability.
FAQ
Does the 74ALVCH16841DGGS require external pull-up or pull-down resistors on unused inputs?
No. All 20 data inputs integrate active bus hold circuitry, providing ±75 μA to ±175 μA holding current at 3.0 V to maintain valid logic levels without external components. This eliminates BOM cost and PCB area for pull resistors while improving system reliability during power-up, hot-swap, or partial bus usage.
What is the maximum guaranteed propagation delay at 3.3 V supply?
The maximum guaranteed propagation delay (tpd) from input to output is 3.9 ns at VCC = 3.0–3.6 V, measured under recommended conditions with 50 pF load. This value is specified across the full industrial temperature range (−40 °C to +85 °C) and ensures timing closure in 100 MHz synchronous bus designs.
Can the two 10-bit sections operate independently with different timing controls?
Yes. Section 1 (1D0–1D9, 1Q0–1Q9, 1LE, 1OE) and Section 2 (2D0–2D9, 2Q0–2Q9, 2LE, 2OE) have fully independent control inputs. Each section can be latched and enabled/disabled separately, enabling time-multiplexed bus access, staggered data capture, or isolated subsystem interfacing without cross-talk.
Is the 74ALVCH16841DGGS qualified for automotive applications?
No. The device is specified for industrial temperature range (−40 °C to +85 °C) and carries no AEC-Q100 qualification. Nexperia explicitly states non-automotive qualification in its legal disclaimers. For automotive use, consult Nexperia's automotive-grade alternatives such as the 74ALVCH16835-Q100 series.
74ALVCH16841DGGS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- -
- Circuit:
- -
- Output Type:
- -
- Voltage - Supply:
- -
- Independent Circuits:
- -
- Delay Time - Propagation:
- -
- Current - Output High, Low:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
74ALVCH16841DGGS FAQ
1.How can I place an order for 74ALVCH16841DGGS through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ALVCH16841DGGS 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 74ALVCH16841DGGS reliable?
The price and inventory of 74ALVCH16841DGGS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVCH16841DGGS is usually 5 days.
3.What payment methods are accepted for 74ALVCH16841DGGS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ALVCH16841DGGS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ALVCH16841DGGS?
74ALVCH16841DGGS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ALVCH16841DGGS 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 74ALVCH16841DGGS?
For technical support, including 74ALVCH16841DGGS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVCH16841DGGS requirements.
6.How does Aetrix verify that 74ALVCH16841DGGS is sourced from the original manufacturer or authorized distributors?
All 74ALVCH16841DGGS 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 74ALVCH16841DGGS meets industry standards.
7.What is the process for return or replacement of 74ALVCH16841DGGS?
All 74ALVCH16841DGGS units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVCH16841DGGS, 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 74ALVCH16841DGGS part is unused and in its original packaging.
Return procedure for 74ALVCH16841DGGS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74ALVCH16841DGGS 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…
